This is kind of a follow up post to the "SLI In A Nutshell" thread.Please feel free to post questions or comments as well as PM me with any questions you might have, if your in need of advice, or just want to talk. 
Update (8/13/06):"Can I Mix and Match" section updated
Update (2/05/06):Every certified SLI Product Up till today, Updated
Update (8/15/05):Gigabyte GA-K8N-SLI added to mobo section
Update (8/06/05):Geforce 6800GT's and Geforce 6800's Updated
Update (8/06/05):Latest BIOS taken down for rechecking
Update (8/06/05):Geforce 7800 GTX's Updated
Update (8/01/05):Updated Cooling section further in post #6
Update (7/31/05):Check post #4 for information about SLI cooling
Update (7/31/05):Updated cooling section in post #6
Update (7/30/05):Check Post #6 for a few products to help cool your system.
Gear
All the PSU's, Mobos, and Video cards are certified SLI products by nVidia. These are the only products you SHOULD use in your SLI system. The video cards section is chronologically listed from the newest to the oldests.
Motherboards
NVIDIA NFORCE4 SLI X16 for INTEL CPUs:
ASUS P5N32-SLI DELUXE
NVIDIA NFORCE4 SLI X16 for AMD CPUs:
ASUS A8N32-SLI Deluxe (SBIOS = 502)
NVIDIA NFORCE4 SLI for INTEL CPUs:
ABIT NI8 SLI (SBIOS = M431A_10.b01)
ABIT N18-SLI GR (SBIOS = M431A_11.B02)
ASUS P5ND2-SLI (SBIOS = 0304)
ASUS P5ND2-SLI Deluxe (SBIOS = 0801)
Biostar N4SIE-A7 (SBIOS = N4SIA608.BF)
Epox EP-5NVA+SLI (SBIOS = V6.00 PG)
Foxconn NF4SLI7AA (SBIOS = 537F1P23)
Gigabyte GA-8N-SLI Royal (SBIOS = V6.00 PG D10)
Gigabyte GA-8N-SLI Royal (SBIOS = V6.00 PG D10)
Gigabyte GA-8N-SLI Pro (SBIOS = F1)
MSI P4N Diamond (SBIOS = V1.00 BH)
MSI P4N SLI (SBIOS = A7160 V3.0B)
NVIDIA NFORCE4 SLI for AMD CPUs:
ABIT K8N SLI (SBIOS = M503D_11.B07)
ABIT Fatal1ty AN8 SLI (SBIOS = AN8_13.B00)
Albatron K8SLI (SBIOS = K8SLI R1.00)
ASUS A8N-SLI (SBIOS = 1001)
ASUS A8N-SLI Deluxe (SBIOS = 1001)
ASUS A8N-SLI Premium (SBIOS = 1002)
Biostar N4SI-A9 (SBIOS = n4SLIA422.BS)
ECS KN1 SLI Extreme (SBIOS = KN1S10.BIN)
ECS ECS KN1 SLI Lite (SBIOS = V1.0B)
DFI Lanparty NF4 SLI Infinity (SBIOS =V6.00PG)
DFI Lanparty NF4-SLI-DR (SBIOS =20050119)
Epox EP-9NPA+SLI (SBIOS = V6.00PG)
eVGA 133-K8-NF41-AX (SBIOS = E4.2)
Foxconn WinFast NF4SK8AA (SBIOS = 538W1D18)
Gigabyte GA-K8N Pro-SLI (SBIOS = F4)
Gigabyte GA-K8NXP-SLI (SBIOS = F4)
Gigabyte GA-K8N-SLI (SBIOS = E1)
Jetway 775GT4-G (SBIOS = 75GT4L06)
Jetway 939GT4-SLI (SBIOS = N8GT4L08)
MSI K8N SLI Platinum (SBIOS = V6.00 PG)
MSI K8N Diamond (SBIOS = V6.00 PG)
MSI K8N Neo4 Platinum/SLI (SBIOS = V6.00 PG)
NVIDIA NFORCE PROFESSIONAL for AMD CPUs:
Foxconn NFPIK8AA-8EKRS (SBIOS = 49LF004B)
IWILL DK8EW (SBIOS = DK8EW111)
MSI K8N Master2-FAR (SBIOS = W9620NMS V0.10)
Tyan Thunder K8WE [S2895] (SBIOS = CKS:75DD)
----------------------------------------------------------------------------------------------
Certified Add-In Cards
GEFORCE 7800 GTX 512:
ASUS EN7800GTX/2DHTV/512M
eVGA e-GeForce 7800 GTX 512 (512-P2-N545)
Leadtek WinFast PX7800 GTX TDH Extreme 512MB
MSI NX7800GTX-VT2D512E
Point of View GeForce 7800 GTX 512
XFX GF 7800 GTX 512MB
GEFORCE 7800 GTX:
Albatron GeForce 7800 GTX
AOpen Aeolus 7800GTX-DVD256
ASUS EN7800GTX/2DHTV/256M
BFG GeForce 7800 GTX
Biostar VN78GTX-D4E
Chaintech AE78GTX
eVGA GeForce 7800 GTX
Gainward Ultra/3500TCX
Galaxy Geforce 7800GTX (78TEF6HBFE)
Geniman Forsa Geforce 7800GTX
Gigabyte GV-NX78X256V-B
Inno3D Geforce 7800GTX
Leadtek WinFast PX7800 GTX TDH
MSI NX7800GTX-VT2D256E
Palit GeForce 7800 GTX
PNY GeForce 7800 GTX
Point of View GeForce 7800 GTX
Prolink PV-N70GXE(256JV)
SPARKLE PX70XVH
XFX GeForce 7800 GTX (PV-T70F-UNF7)
GEFORCE 7800 GT:
Albatron GeForce 7800 GT (Albatron)
AOpen Aeolus 7800GT-DVD256
ASUS Extreme N7800GT/2DHTV
BFG GeForce 7800 GT OC
Chaintech AE78GT
eVGA e-GeForce 7800 GT
Gainward PowerPack! Ultra/3400PCX XP
Galaxy GeForce 7800 GT (Galaxy)
Geniman Forsa Geforce 7800GT
Inno3D Geforce 7800 GT (Inno3D)
Leadtek WinFast PX7800 GT TDH
MSI NX7800GT-VT2D256E
Palit GeForce 7800 GT (Palit)
PNY GeForce 7800 GT (PNY)
Point of View GeForce 7800 GT (Point of View)
Prolink PixelView GeForce 7800 GT
SPARKLE GeForce 7800 GT (Sparkle)
XFX GeForce 7800 GT (PV-T70G-UDF)
GEFORCE 6800 ULTRA:
Albatron PC6800U
AOpen Aeolus 6800Ultra-DVD256 PCI-E
ASUS Extreme N6800Ultra (EN6800Ultra)
BFG BFGO68256UX
Chaintech E6800U
eVGA 256-P2-N377-AX/BX
Gainward PowerPack! Ultra/2600 PCX "Golden Sample"
Galaxy GeForce 6800 Ultra PCI-E
Gigabyte GV-NX68U256D-B
Inno3D GeForce 6800 Ultra PCI-E
Leadtek WinFast PX6800 Ultra
MSI NX6800 Ultra-T2D256
Prolink PV-N45UE(256JD)
Sparkle SP-PX45UPT
XFX/Pine XFX GeForce 6800 Ultra
GEFORCE 6800 GS:
Albatron PC6800GS
Chaintech SE68GS-A1256H
eVGA 256-P2-N386
Gainward ULTRA/2300PCX XP256 MB GS
Galaxy GeForce 6800GS
Inno3D GeForce 6800GS
Leadtek WinFast PX6800GS TDH
MSI NS6800GS-TD256E
PNY VCG6800SXPB
Point of View GeForce 6800 GS
Prolink PV-N42GE (256JD)
Sparkle SCPX41GS17S256DH
XFX/Pine PV-T42G-UAD/AF
GEFORCE 6800 GT:
Albatron PC6800GT
ASUS EN6800GT
BFG BFG BFGO68256GTOCX
eVGA 256-P2-N376-AX/BX
Gainward PowerPack! Ultra/2400 PCX
Gigabyte GV-NX68T256DH
Leadtek WinFast PX6800 GT
MSI NX6800GT
Sparkle SP-PX45GT
XFX/Pine XFX GeForce 6800GT PCI-E (PV-T45G-UD)
GEFORCE 6800:
ASUS EN6800
Leadtek WinFast PX6800 TDH
MSI NX6800
Sparkle SP-PX42DH
GEFORCE 6800 LE:
ASUS EN6800LE
Leadtek WinFast PX6800 LE TDH
GEFORCE 6600 GT:
Albatron GF6600GT
AOpen Aeolus 6600GT-DV128
Espco GeForce 6600 GT PCI-E
ASUS Extreme N6600GT
BFG BFGR6600GTOCX
Chaintech SE6600G
eVGA 128-P2-N368-AX/BX
Galaxy GeForce 6600GT
Gainward PowerPack! Ultra/1960 PCX XP
Gigabyte GV-3D1 (use with GA-K8NXP-SLI only)
Gigabyte NX66T128D
Inno3D Inno3D GeForce 6600GT
Leadtek WinFast PX6600GT
MSI MS-8983 NX6600GT-VTD128E/NX6600GT-TD128E
MSI NX6600GT
Palit GeForce 6600GT
PNY Verto GeForce 6600GT VCG6600GXPB
Prolink PV-N43UE(128KD)
Sparkle SPPX43
XFX/Pine XFX GeForce 6600GT PCI-E (PV-T43G-ND)
GEFORCE 6600: (These graphics cards do not use the SLI Connector)
Albatron PC6600
AOpen Aeolus 6600-DV256 PCI-E
BFG GeForce 6600
Biostar GeForce 6600
ASUS Extreme N6600/TD
Chaintech SE6600
eVGA e-GeForce 6600 (256-P2-N369-TX)
Galaxy GF6600
Gainward PowerPack! Ultra/1780PCX
Gigabyte GV-NX66256DP
Gigabyte GV-NX66128DP2
Inno3D GeForce 6600 PCI-E
Leadtek WinFast PX6600 TD
MSI NX6600-VTD256E
Palit Geforce 6600
PNY Geforce 6600
Prolink PV-N43E(256KD)
Sparkle SP-PX43DT
XFX/PINE XFX GeForce 6600 256MB
GEFORCE 6600 LE: (These graphics cards do not use the SLI Connector)
Prolink 6600 LE (PV-N43LE)
Sparkle 6600 LE (SP-PX43LDH)
----------------------------------------------------------------------------------------------
Certified Power Supplies
Akasa PowerPlus 650W PSU
Akasa PowerPlus 550W PSU
Antec NeoHE 500W
Antec TPII-550
Antec NeoHE 550
Antec TP2550EPS12V
Antec TrueControl II 550
BFG Tech Power Supply 600W
CoolerMaster Real Power 550W SLI
Coolmax CXI-600B, 600W
Coolmax CXI-500B, 500W
Coolmax CW-650T 650W Extreme Power
Enermax EG565P-VE FMA 535W
Enermax EG651AX-VH EPS12V 550W
Enermax EG851AX-VH EPS12V 660W
Enermax EG701AX Noisetaker 600W
FSP Group EPSILON FX600-GLN 600W
FSP Group EPSILON FX700-GLN 700W
High Power HPC-560-A12S EPS, 560W
High Power HPC-560-A88S EPS, 560W
Hiper Type-R series 580W HPU-4[B,K,R,S]580
OCZ Technology PowerStream 520W (OCZ520ADJSLI)
OCZ Technology PowerStream 600W (OCZ600ADJSLI)
PC Power & Cooling Turbo-Cool 1KW
PC Power & Cooling Turbo-Cool® 510 SLI (510ATX-PFC)
PC Power & Cooling Turbo-Cool® 850 SLI (850ETX-PFC)
Seasonic S12-500 Watt
Seasonic S12-600 Watt
Silverstone ST56ZF 560W
Silverstone ST65ZF 650W
Silverstone ST60F 600W
Sparkle Power FSP600-80GLC
Sparkle Power FSP650-80GLC
Sparkle Power FSP550PLG-SLI 550W
Sunbeamtech NUUO Series 550W SLI (SUNNU550-US)
Thermaltake PurePower TWV500W
Ultra Products X2 550W PSU - Titanium
Ultra Products X-Finity 500 Watt PSU
Ultra Products X-Finity 600 Watt PSU
Zippy Gaming GSM-6600P(G1) 600W
----------------------------------------------------------------------------------------------
Certified System Memory
DDR2 SDRAM DIMMs for Intel CPUs:
Corsair CM2X512-5400C4
Corsair CM2X512-5400C4PRO
Corsair TWIN2X1024-5400C4
Corsair TWIN2X1024-5400C4PRO
Frequentley Asked Questions:
The following can be found on the NVIDIA site but I thought it might help to post again here. PM me if you have any questions. Once again the following information is provided by the nice people at NVIDIA.
What is NVIDIA SLI? How does it work?
NVIDIA® SLI™ (Scalable Link Interface) is a high-performance technology that intelligently combines and scales graphics performance and visual quality by having multiple NVIDIA GPUs in a single system. SLI Technology can scale both geometry and fill rate performance for two GPUs.
How is SLI different from competitive product offerings?
SLI takes the PCI Express multi NVIDIA GPU configuration to the next level by designing a family of GPUs that feature intelligent patent-pending hardware and software technology. The result is never-before-seen performance on PCs and workstations.
Do you have dedicated hardware for NVIDIA SLI or is it just software?
We have dedicated scalability logic in each GPU and a digital interface between GPUs to help enable this logic. In addition, we have a full software suite of advanced rendering algorithms that provide the best image quality.
How much of a performance increase will I see with SLI technology?
The amount of performance improvement will depend on the application and its ability to scale. Several of today's hottest games see a full 2X increase in performance. In general, applications running at higher resolutions with higher image quality settings will benefit most.
How does this technology differ from 3dfx's SLI?
NVIDIA SLI differs in many ways. First, 3dfx SLI was implemented on a shared bus using PCI. The PCI bus delivered ~100MB/sec. of bus throughput, while PCI Express is a point-to-point interface that can deliver ~60x the total bandwidth of PCI. Second, 3dfx SLI performed interleaving of scan lines, and combined in the analog domain, which could result in image quality issues due to DAC differences and other factors. 3dfx Voodoo technology also only performed triangle setup, leaving the geometry workload for the CPU, hence 3dfx SLI only scaled simple texture fill rate, and then used inter-frame scalability. NVIDIA SLI technology is PCI Express based, uses a completely digital frame combining method that has no impact on image quality, can scale geometry performance, and supports a variety of scalability algorithms to best match the scalability method with application demands.
Does SLI work on AGP?
No. SLI is designed for PCI Express.
How does SLI work on PCI Express?
SLI is designed for PCI Express. This new bus has superior bandwidth (two to four times AGP 8X), support for isochronous data transport, and the capability to drive multiple high-speed graphics devices. AGP 8X was limited to one high-speed graphics device and was not a good candidate for SLI.
What cards can work together in an SLI configuration?
All PCI Express based GeForce 7800 GTX, GeForce 6800 Ultra, GeForce 6800 GT, GeForce 6800, GeForce 6800 LE, GeForce 6600 GT, GeForce 6600 and GeForce 6600 LE boards support SLI technology.
The current NVIDIA Windows XP drivers for Quadro also support SLI for NVIDIA Quadro FX 4400, NVIDIA Quadro FX 3400, and NVIDIA Quadro FX 1400 boards.
What is the function of the SLI connector?
The SLI connector is a proprietary link between GPUs that transmits synchronization, display, and pixel data. The SLI connector enables inter-GPU communication of up to 1GB/s, consuming no bandwidth over the PCI Express bus. The SLI connector is used with GeForce 6600 GT products and above. For all other SLI-Ready graphics cards, inter-GPU communication is passed through the PCI-Express Bus, instead of through the SLI Connector. For these mainstream GPUs, there is typically enough excess bandwidth across the PCI-Express bus to effectively manage this additional communication. More powerful GPUs (GeForce 6600 GT and above) require the SLI connector to achieve optimal scaling results.
What operating systems are supported with SLI Technology?
SLI Technology supports 32-bit and 64-bit Windows XP.
What applications are supported with SLI Technology?
SLI can be enabled for every gaming application, providing either performance scaling results through AFR or SFR rendering modes or increased visual quality through the SLI Antialiasing mode. In order to provide the optimal 'out-of-box' experience for its customers, NVIDIA has created an extensive set of optimized game profiles which enable SLI automatically. The full list of these SLI-optimized games can be found here. For applications not found in this list, simply follow these quick instructions to set up a new game profile to enable SLI. Information about Workstation application support can be found here.
Which driver should I use?
NVIDIA's ForceWare Unified Driver Architecture supports SLI. NVIDIA continually adds new SLI applications profiles to upcoming drivers. For the most up to date SLI application support, always use the latest driver posted on www.slizone.com. Before installing new drivers, make sure you uninstall all NVIDIA display drivers from the Windows Control Panel. Browse to the Start Menu > Windows Control Panel > Add/Remove Programs, and search for "NVIDIA Drivers" or "NVIDIA Display Drivers," and select remove NVIDIA Display driver only. Reboot and install the new drivers.
Why don't all games scale?
Applications which tax the GPU will see tremendous performance improvements of up to 2X with SLI technology. Most of today's hottest games and as well as next generation games fall into this category. However, some applications, typically older generation applications, are limited by factors other than the GPU's processing power. The most common limitation is an application that is CPU bound. If an application becomes CPU bound, no additional graphics power can improve performance. This situation is most common at low screen resolutions like 1024x786 with no additional functionality turned on. Turning on Antialiasing and Anisotropic Filtering, or switching to higher resolutions, can often move the bottleneck back to the GPU. For CPU bound applications, NVIDIA offers a new SLI rendering mode called SLI Antialiasing. This rendering mode allows customers to enable SLI8x or SLI16x antialiasing and enhance the visual quality of any gaming application.
What is SLI Antialiasing?
SLI Antialiasing is a new standalone rendering mode that offers up to double the antialiasing performance by splitting the antialiasing workload between the two graphics cards. When enabled, SLI Antialiasing offers 2 new antialiasing options: SLI8x and SLI16x. In the current driver, this rendering mode can be enabled by following these quick instructions. The next driver release will make this rendering mode a permanent part of the NVIDIA control panel. More information about SLI Antialiasing can be found here.
Is NVIDIA working with Developers on SLI application support?
Yes. NVIDIA is actively working with developers and educating them so that their titles can benefit from SLI as much as possible. By developing future titles on SLI technology, game developers are able to optimize their titles for SLI configurations. Additionally, the performance of SLI today gives developers a glimpse of how tomorrow's single GPU systems will perform. This allows them to tune for all elements of the system including CPU utilization. See what the developers are saying about SLI here.
How many monitors are supported with SLI in Multi-GPU mode?
When in Multi-GPU mode, SLI currently supports one monitor. When in Single-GPU mode, users have the ability to use up to 4 monitors using nView Multi-Display Technology and Windows XP Dualview.
Note: The GeForce 6800 Ultra 512MB works in single card mode with Apple 30 inch HD Cinema panel. However, an issue has been discovered when running the GeForce 6800 Ultra 512MB card in SLI mode with an Apple 30 inch HD Cinema display. This is due to an interaction between the GPU, the application, and the ability to scale to nonnative panel resolutions of the Apple display. All GeForce 6 series GPUs will work with Apple 23 and 20 inch HD Cinema displays in single GPU mode.
NVIDIA recommends using the GeForce 6800 Ultra 512MB with the Apple 30 inch HD Cinema Display line only in non-SLI modes.
Can I mix and match graphics cards?
In order to provide optimal symmetric scaling, SLI Technology requires the NVIDIA GPU to match. For example, a GeForce 7800 GTX must be paired with another GeForce 7800 GTX. Likewise, a GeForce 6600 GT must be paired with another GeForce 6600 GT. However, using the latest Release 80 Graphics Drivers, NVIDIA GPUs sold by different manufacturers can be used together in SLI Mode. For example, a GeForce 7800 GT from vendor ABC can be matched with a GeForce 7800 GT from vendor XYZ.
Can SLI work with one PCI Express board and one AGP 8X board or with PCI Express and PCI?
No. SLI is designed solely for PCI Express.
Can I install just one SLI-Ready graphics card with an NVIDIA nForce4 SLI based motherboard?
Yes, NVIDIA nForce4 SLI based motherboards can support any single PCI-Express x16 based graphics card. Two graphics cards are not required but recommended. For the best experience and upgrade potential, make sure to use an SLI-Ready PCI-Express graphics card. Always look for the SLI-Ready logo.
Where can I purchase an SLI connector?
The SLI connector is included with all NVIDIA SLI-Ready motherboards and with all SLI-Ready PCs. If your motherboard supports SLI and did not come with this connector, please contact the manufacturer of your motherboard to obtain a replacement connector.
Can you use more than two graphics cards with SLI?
NVIDIA currently supports only dual GPU scaling at this time.
[/QUOTE]
Extra Info
SLI GPUs:
NVIDIA SLI GPUs deliver powerful, elegant and super-rich graphics for games and other graphics-intensive applications. Combining two NVIDIA SLI-certified graphics cards in a single system allows you to essentially double your graphics performance (up to 2x). NVIDIA SLI-certified GPUs feature dedicated, built-in SLI hardware and take advantage of the additional bandwidth of the PCI Express bus architecture. Connected by the SLI connector**, each GPU has a maximized connection pathway, and can leverage the second card for reaching top-speed performances on a single display. Professional users can also take advantage of SLI technology on dual NVIDIA Quadro GPUs to span an OpenGL window across multiple displays. Unlike previous dual-card solutions, NVIDIA SLI can output in both digital and analog formats for the highest image quality.
SLI Motherboards
NVIDIA SLI-certified motherboards include NVIDIA MCPs and are designed to deliver the highest levels of performance in PCI Express, multi-GPU platforms. Additionally, NVIDIA nForce SLI-certified motherboards balance the bandwidth from the PCI Express bus architecture between both GPUs for over-the-top graphics, great speed, and scaled performance.
How it Works
An NVIDIA SLI system includes a PCI Express motherboard that supports two physical connectors that are capable of having two NVIDIA-based PCI Express graphics cards plugged into them. Joined by the NVIDIA SLI connector, the two graphics cards power one monitor, delivering earth-shattering PC performance.
Update (8/13/06):"Can I Mix and Match" section updated
Update (2/05/06):Every certified SLI Product Up till today, Updated
Update (8/15/05):Gigabyte GA-K8N-SLI added to mobo section
Update (8/06/05):Geforce 6800GT's and Geforce 6800's Updated
Update (8/06/05):Latest BIOS taken down for rechecking
Update (8/06/05):Geforce 7800 GTX's Updated
Update (8/01/05):Updated Cooling section further in post #6
Update (7/31/05):Check post #4 for information about SLI cooling
Update (7/31/05):Updated cooling section in post #6
Update (7/30/05):Check Post #6 for a few products to help cool your system.
Gear
All the PSU's, Mobos, and Video cards are certified SLI products by nVidia. These are the only products you SHOULD use in your SLI system. The video cards section is chronologically listed from the newest to the oldests.
Motherboards
NVIDIA NFORCE4 SLI X16 for INTEL CPUs:
ASUS P5N32-SLI DELUXE
NVIDIA NFORCE4 SLI X16 for AMD CPUs:
ASUS A8N32-SLI Deluxe (SBIOS = 502)
NVIDIA NFORCE4 SLI for INTEL CPUs:
ABIT NI8 SLI (SBIOS = M431A_10.b01)
ABIT N18-SLI GR (SBIOS = M431A_11.B02)
ASUS P5ND2-SLI (SBIOS = 0304)
ASUS P5ND2-SLI Deluxe (SBIOS = 0801)
Biostar N4SIE-A7 (SBIOS = N4SIA608.BF)
Epox EP-5NVA+SLI (SBIOS = V6.00 PG)
Foxconn NF4SLI7AA (SBIOS = 537F1P23)
Gigabyte GA-8N-SLI Royal (SBIOS = V6.00 PG D10)
Gigabyte GA-8N-SLI Royal (SBIOS = V6.00 PG D10)
Gigabyte GA-8N-SLI Pro (SBIOS = F1)
MSI P4N Diamond (SBIOS = V1.00 BH)
MSI P4N SLI (SBIOS = A7160 V3.0B)
NVIDIA NFORCE4 SLI for AMD CPUs:
ABIT K8N SLI (SBIOS = M503D_11.B07)
ABIT Fatal1ty AN8 SLI (SBIOS = AN8_13.B00)
Albatron K8SLI (SBIOS = K8SLI R1.00)
ASUS A8N-SLI (SBIOS = 1001)
ASUS A8N-SLI Deluxe (SBIOS = 1001)
ASUS A8N-SLI Premium (SBIOS = 1002)
Biostar N4SI-A9 (SBIOS = n4SLIA422.BS)
ECS KN1 SLI Extreme (SBIOS = KN1S10.BIN)
ECS ECS KN1 SLI Lite (SBIOS = V1.0B)
DFI Lanparty NF4 SLI Infinity (SBIOS =V6.00PG)
DFI Lanparty NF4-SLI-DR (SBIOS =20050119)
Epox EP-9NPA+SLI (SBIOS = V6.00PG)
eVGA 133-K8-NF41-AX (SBIOS = E4.2)
Foxconn WinFast NF4SK8AA (SBIOS = 538W1D18)
Gigabyte GA-K8N Pro-SLI (SBIOS = F4)
Gigabyte GA-K8NXP-SLI (SBIOS = F4)
Gigabyte GA-K8N-SLI (SBIOS = E1)
Jetway 775GT4-G (SBIOS = 75GT4L06)
Jetway 939GT4-SLI (SBIOS = N8GT4L08)
MSI K8N SLI Platinum (SBIOS = V6.00 PG)
MSI K8N Diamond (SBIOS = V6.00 PG)
MSI K8N Neo4 Platinum/SLI (SBIOS = V6.00 PG)
NVIDIA NFORCE PROFESSIONAL for AMD CPUs:
Foxconn NFPIK8AA-8EKRS (SBIOS = 49LF004B)
IWILL DK8EW (SBIOS = DK8EW111)
MSI K8N Master2-FAR (SBIOS = W9620NMS V0.10)
Tyan Thunder K8WE [S2895] (SBIOS = CKS:75DD)
----------------------------------------------------------------------------------------------
Certified Add-In Cards
GEFORCE 7800 GTX 512:
ASUS EN7800GTX/2DHTV/512M
eVGA e-GeForce 7800 GTX 512 (512-P2-N545)
Leadtek WinFast PX7800 GTX TDH Extreme 512MB
MSI NX7800GTX-VT2D512E
Point of View GeForce 7800 GTX 512
XFX GF 7800 GTX 512MB
GEFORCE 7800 GTX:
Albatron GeForce 7800 GTX
AOpen Aeolus 7800GTX-DVD256
ASUS EN7800GTX/2DHTV/256M
BFG GeForce 7800 GTX
Biostar VN78GTX-D4E
Chaintech AE78GTX
eVGA GeForce 7800 GTX
Gainward Ultra/3500TCX
Galaxy Geforce 7800GTX (78TEF6HBFE)
Geniman Forsa Geforce 7800GTX
Gigabyte GV-NX78X256V-B
Inno3D Geforce 7800GTX
Leadtek WinFast PX7800 GTX TDH
MSI NX7800GTX-VT2D256E
Palit GeForce 7800 GTX
PNY GeForce 7800 GTX
Point of View GeForce 7800 GTX
Prolink PV-N70GXE(256JV)
SPARKLE PX70XVH
XFX GeForce 7800 GTX (PV-T70F-UNF7)
GEFORCE 7800 GT:
Albatron GeForce 7800 GT (Albatron)
AOpen Aeolus 7800GT-DVD256
ASUS Extreme N7800GT/2DHTV
BFG GeForce 7800 GT OC
Chaintech AE78GT
eVGA e-GeForce 7800 GT
Gainward PowerPack! Ultra/3400PCX XP
Galaxy GeForce 7800 GT (Galaxy)
Geniman Forsa Geforce 7800GT
Inno3D Geforce 7800 GT (Inno3D)
Leadtek WinFast PX7800 GT TDH
MSI NX7800GT-VT2D256E
Palit GeForce 7800 GT (Palit)
PNY GeForce 7800 GT (PNY)
Point of View GeForce 7800 GT (Point of View)
Prolink PixelView GeForce 7800 GT
SPARKLE GeForce 7800 GT (Sparkle)
XFX GeForce 7800 GT (PV-T70G-UDF)
GEFORCE 6800 ULTRA:
Albatron PC6800U
AOpen Aeolus 6800Ultra-DVD256 PCI-E
ASUS Extreme N6800Ultra (EN6800Ultra)
BFG BFGO68256UX
Chaintech E6800U
eVGA 256-P2-N377-AX/BX
Gainward PowerPack! Ultra/2600 PCX "Golden Sample"
Galaxy GeForce 6800 Ultra PCI-E
Gigabyte GV-NX68U256D-B
Inno3D GeForce 6800 Ultra PCI-E
Leadtek WinFast PX6800 Ultra
MSI NX6800 Ultra-T2D256
Prolink PV-N45UE(256JD)
Sparkle SP-PX45UPT
XFX/Pine XFX GeForce 6800 Ultra
GEFORCE 6800 GS:
Albatron PC6800GS
Chaintech SE68GS-A1256H
eVGA 256-P2-N386
Gainward ULTRA/2300PCX XP256 MB GS
Galaxy GeForce 6800GS
Inno3D GeForce 6800GS
Leadtek WinFast PX6800GS TDH
MSI NS6800GS-TD256E
PNY VCG6800SXPB
Point of View GeForce 6800 GS
Prolink PV-N42GE (256JD)
Sparkle SCPX41GS17S256DH
XFX/Pine PV-T42G-UAD/AF
GEFORCE 6800 GT:
Albatron PC6800GT
ASUS EN6800GT
BFG BFG BFGO68256GTOCX
eVGA 256-P2-N376-AX/BX
Gainward PowerPack! Ultra/2400 PCX
Gigabyte GV-NX68T256DH
Leadtek WinFast PX6800 GT
MSI NX6800GT
Sparkle SP-PX45GT
XFX/Pine XFX GeForce 6800GT PCI-E (PV-T45G-UD)
GEFORCE 6800:
ASUS EN6800
Leadtek WinFast PX6800 TDH
MSI NX6800
Sparkle SP-PX42DH
GEFORCE 6800 LE:
ASUS EN6800LE
Leadtek WinFast PX6800 LE TDH
GEFORCE 6600 GT:
Albatron GF6600GT
AOpen Aeolus 6600GT-DV128
Espco GeForce 6600 GT PCI-E
ASUS Extreme N6600GT
BFG BFGR6600GTOCX
Chaintech SE6600G
eVGA 128-P2-N368-AX/BX
Galaxy GeForce 6600GT
Gainward PowerPack! Ultra/1960 PCX XP
Gigabyte GV-3D1 (use with GA-K8NXP-SLI only)
Gigabyte NX66T128D
Inno3D Inno3D GeForce 6600GT
Leadtek WinFast PX6600GT
MSI MS-8983 NX6600GT-VTD128E/NX6600GT-TD128E
MSI NX6600GT
Palit GeForce 6600GT
PNY Verto GeForce 6600GT VCG6600GXPB
Prolink PV-N43UE(128KD)
Sparkle SPPX43
XFX/Pine XFX GeForce 6600GT PCI-E (PV-T43G-ND)
GEFORCE 6600: (These graphics cards do not use the SLI Connector)
Albatron PC6600
AOpen Aeolus 6600-DV256 PCI-E
BFG GeForce 6600
Biostar GeForce 6600
ASUS Extreme N6600/TD
Chaintech SE6600
eVGA e-GeForce 6600 (256-P2-N369-TX)
Galaxy GF6600
Gainward PowerPack! Ultra/1780PCX
Gigabyte GV-NX66256DP
Gigabyte GV-NX66128DP2
Inno3D GeForce 6600 PCI-E
Leadtek WinFast PX6600 TD
MSI NX6600-VTD256E
Palit Geforce 6600
PNY Geforce 6600
Prolink PV-N43E(256KD)
Sparkle SP-PX43DT
XFX/PINE XFX GeForce 6600 256MB
GEFORCE 6600 LE: (These graphics cards do not use the SLI Connector)
Prolink 6600 LE (PV-N43LE)
Sparkle 6600 LE (SP-PX43LDH)
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Certified Power Supplies
Akasa PowerPlus 650W PSU
Akasa PowerPlus 550W PSU
Antec NeoHE 500W
Antec TPII-550
Antec NeoHE 550
Antec TP2550EPS12V
Antec TrueControl II 550
BFG Tech Power Supply 600W
CoolerMaster Real Power 550W SLI
Coolmax CXI-600B, 600W
Coolmax CXI-500B, 500W
Coolmax CW-650T 650W Extreme Power
Enermax EG565P-VE FMA 535W
Enermax EG651AX-VH EPS12V 550W
Enermax EG851AX-VH EPS12V 660W
Enermax EG701AX Noisetaker 600W
FSP Group EPSILON FX600-GLN 600W
FSP Group EPSILON FX700-GLN 700W
High Power HPC-560-A12S EPS, 560W
High Power HPC-560-A88S EPS, 560W
Hiper Type-R series 580W HPU-4[B,K,R,S]580
OCZ Technology PowerStream 520W (OCZ520ADJSLI)
OCZ Technology PowerStream 600W (OCZ600ADJSLI)
PC Power & Cooling Turbo-Cool 1KW
PC Power & Cooling Turbo-Cool® 510 SLI (510ATX-PFC)
PC Power & Cooling Turbo-Cool® 850 SLI (850ETX-PFC)
Seasonic S12-500 Watt
Seasonic S12-600 Watt
Silverstone ST56ZF 560W
Silverstone ST65ZF 650W
Silverstone ST60F 600W
Sparkle Power FSP600-80GLC
Sparkle Power FSP650-80GLC
Sparkle Power FSP550PLG-SLI 550W
Sunbeamtech NUUO Series 550W SLI (SUNNU550-US)
Thermaltake PurePower TWV500W
Ultra Products X2 550W PSU - Titanium
Ultra Products X-Finity 500 Watt PSU
Ultra Products X-Finity 600 Watt PSU
Zippy Gaming GSM-6600P(G1) 600W
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Certified System Memory
DDR2 SDRAM DIMMs for Intel CPUs:
Corsair CM2X512-5400C4
Corsair CM2X512-5400C4PRO
Corsair TWIN2X1024-5400C4
Corsair TWIN2X1024-5400C4PRO
Frequentley Asked Questions:
The following can be found on the NVIDIA site but I thought it might help to post again here. PM me if you have any questions. Once again the following information is provided by the nice people at NVIDIA.
What is NVIDIA SLI? How does it work?
NVIDIA® SLI™ (Scalable Link Interface) is a high-performance technology that intelligently combines and scales graphics performance and visual quality by having multiple NVIDIA GPUs in a single system. SLI Technology can scale both geometry and fill rate performance for two GPUs.
How is SLI different from competitive product offerings?
SLI takes the PCI Express multi NVIDIA GPU configuration to the next level by designing a family of GPUs that feature intelligent patent-pending hardware and software technology. The result is never-before-seen performance on PCs and workstations.
Do you have dedicated hardware for NVIDIA SLI or is it just software?
We have dedicated scalability logic in each GPU and a digital interface between GPUs to help enable this logic. In addition, we have a full software suite of advanced rendering algorithms that provide the best image quality.
How much of a performance increase will I see with SLI technology?
The amount of performance improvement will depend on the application and its ability to scale. Several of today's hottest games see a full 2X increase in performance. In general, applications running at higher resolutions with higher image quality settings will benefit most.
How does this technology differ from 3dfx's SLI?
NVIDIA SLI differs in many ways. First, 3dfx SLI was implemented on a shared bus using PCI. The PCI bus delivered ~100MB/sec. of bus throughput, while PCI Express is a point-to-point interface that can deliver ~60x the total bandwidth of PCI. Second, 3dfx SLI performed interleaving of scan lines, and combined in the analog domain, which could result in image quality issues due to DAC differences and other factors. 3dfx Voodoo technology also only performed triangle setup, leaving the geometry workload for the CPU, hence 3dfx SLI only scaled simple texture fill rate, and then used inter-frame scalability. NVIDIA SLI technology is PCI Express based, uses a completely digital frame combining method that has no impact on image quality, can scale geometry performance, and supports a variety of scalability algorithms to best match the scalability method with application demands.
Does SLI work on AGP?
No. SLI is designed for PCI Express.
How does SLI work on PCI Express?
SLI is designed for PCI Express. This new bus has superior bandwidth (two to four times AGP 8X), support for isochronous data transport, and the capability to drive multiple high-speed graphics devices. AGP 8X was limited to one high-speed graphics device and was not a good candidate for SLI.
What cards can work together in an SLI configuration?
All PCI Express based GeForce 7800 GTX, GeForce 6800 Ultra, GeForce 6800 GT, GeForce 6800, GeForce 6800 LE, GeForce 6600 GT, GeForce 6600 and GeForce 6600 LE boards support SLI technology.
The current NVIDIA Windows XP drivers for Quadro also support SLI for NVIDIA Quadro FX 4400, NVIDIA Quadro FX 3400, and NVIDIA Quadro FX 1400 boards.
What is the function of the SLI connector?
The SLI connector is a proprietary link between GPUs that transmits synchronization, display, and pixel data. The SLI connector enables inter-GPU communication of up to 1GB/s, consuming no bandwidth over the PCI Express bus. The SLI connector is used with GeForce 6600 GT products and above. For all other SLI-Ready graphics cards, inter-GPU communication is passed through the PCI-Express Bus, instead of through the SLI Connector. For these mainstream GPUs, there is typically enough excess bandwidth across the PCI-Express bus to effectively manage this additional communication. More powerful GPUs (GeForce 6600 GT and above) require the SLI connector to achieve optimal scaling results.
What operating systems are supported with SLI Technology?
SLI Technology supports 32-bit and 64-bit Windows XP.
What applications are supported with SLI Technology?
SLI can be enabled for every gaming application, providing either performance scaling results through AFR or SFR rendering modes or increased visual quality through the SLI Antialiasing mode. In order to provide the optimal 'out-of-box' experience for its customers, NVIDIA has created an extensive set of optimized game profiles which enable SLI automatically. The full list of these SLI-optimized games can be found here. For applications not found in this list, simply follow these quick instructions to set up a new game profile to enable SLI. Information about Workstation application support can be found here.
Which driver should I use?
NVIDIA's ForceWare Unified Driver Architecture supports SLI. NVIDIA continually adds new SLI applications profiles to upcoming drivers. For the most up to date SLI application support, always use the latest driver posted on www.slizone.com. Before installing new drivers, make sure you uninstall all NVIDIA display drivers from the Windows Control Panel. Browse to the Start Menu > Windows Control Panel > Add/Remove Programs, and search for "NVIDIA Drivers" or "NVIDIA Display Drivers," and select remove NVIDIA Display driver only. Reboot and install the new drivers.
Why don't all games scale?
Applications which tax the GPU will see tremendous performance improvements of up to 2X with SLI technology. Most of today's hottest games and as well as next generation games fall into this category. However, some applications, typically older generation applications, are limited by factors other than the GPU's processing power. The most common limitation is an application that is CPU bound. If an application becomes CPU bound, no additional graphics power can improve performance. This situation is most common at low screen resolutions like 1024x786 with no additional functionality turned on. Turning on Antialiasing and Anisotropic Filtering, or switching to higher resolutions, can often move the bottleneck back to the GPU. For CPU bound applications, NVIDIA offers a new SLI rendering mode called SLI Antialiasing. This rendering mode allows customers to enable SLI8x or SLI16x antialiasing and enhance the visual quality of any gaming application.
What is SLI Antialiasing?
SLI Antialiasing is a new standalone rendering mode that offers up to double the antialiasing performance by splitting the antialiasing workload between the two graphics cards. When enabled, SLI Antialiasing offers 2 new antialiasing options: SLI8x and SLI16x. In the current driver, this rendering mode can be enabled by following these quick instructions. The next driver release will make this rendering mode a permanent part of the NVIDIA control panel. More information about SLI Antialiasing can be found here.
Is NVIDIA working with Developers on SLI application support?
Yes. NVIDIA is actively working with developers and educating them so that their titles can benefit from SLI as much as possible. By developing future titles on SLI technology, game developers are able to optimize their titles for SLI configurations. Additionally, the performance of SLI today gives developers a glimpse of how tomorrow's single GPU systems will perform. This allows them to tune for all elements of the system including CPU utilization. See what the developers are saying about SLI here.
How many monitors are supported with SLI in Multi-GPU mode?
When in Multi-GPU mode, SLI currently supports one monitor. When in Single-GPU mode, users have the ability to use up to 4 monitors using nView Multi-Display Technology and Windows XP Dualview.
Note: The GeForce 6800 Ultra 512MB works in single card mode with Apple 30 inch HD Cinema panel. However, an issue has been discovered when running the GeForce 6800 Ultra 512MB card in SLI mode with an Apple 30 inch HD Cinema display. This is due to an interaction between the GPU, the application, and the ability to scale to nonnative panel resolutions of the Apple display. All GeForce 6 series GPUs will work with Apple 23 and 20 inch HD Cinema displays in single GPU mode.
NVIDIA recommends using the GeForce 6800 Ultra 512MB with the Apple 30 inch HD Cinema Display line only in non-SLI modes.
Can I mix and match graphics cards?
In order to provide optimal symmetric scaling, SLI Technology requires the NVIDIA GPU to match. For example, a GeForce 7800 GTX must be paired with another GeForce 7800 GTX. Likewise, a GeForce 6600 GT must be paired with another GeForce 6600 GT. However, using the latest Release 80 Graphics Drivers, NVIDIA GPUs sold by different manufacturers can be used together in SLI Mode. For example, a GeForce 7800 GT from vendor ABC can be matched with a GeForce 7800 GT from vendor XYZ.
Can SLI work with one PCI Express board and one AGP 8X board or with PCI Express and PCI?
No. SLI is designed solely for PCI Express.
Can I install just one SLI-Ready graphics card with an NVIDIA nForce4 SLI based motherboard?
Yes, NVIDIA nForce4 SLI based motherboards can support any single PCI-Express x16 based graphics card. Two graphics cards are not required but recommended. For the best experience and upgrade potential, make sure to use an SLI-Ready PCI-Express graphics card. Always look for the SLI-Ready logo.
Where can I purchase an SLI connector?
The SLI connector is included with all NVIDIA SLI-Ready motherboards and with all SLI-Ready PCs. If your motherboard supports SLI and did not come with this connector, please contact the manufacturer of your motherboard to obtain a replacement connector.
Can you use more than two graphics cards with SLI?
NVIDIA currently supports only dual GPU scaling at this time.
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Extra Info
SLI GPUs:
NVIDIA SLI GPUs deliver powerful, elegant and super-rich graphics for games and other graphics-intensive applications. Combining two NVIDIA SLI-certified graphics cards in a single system allows you to essentially double your graphics performance (up to 2x). NVIDIA SLI-certified GPUs feature dedicated, built-in SLI hardware and take advantage of the additional bandwidth of the PCI Express bus architecture. Connected by the SLI connector**, each GPU has a maximized connection pathway, and can leverage the second card for reaching top-speed performances on a single display. Professional users can also take advantage of SLI technology on dual NVIDIA Quadro GPUs to span an OpenGL window across multiple displays. Unlike previous dual-card solutions, NVIDIA SLI can output in both digital and analog formats for the highest image quality.
SLI Motherboards
NVIDIA SLI-certified motherboards include NVIDIA MCPs and are designed to deliver the highest levels of performance in PCI Express, multi-GPU platforms. Additionally, NVIDIA nForce SLI-certified motherboards balance the bandwidth from the PCI Express bus architecture between both GPUs for over-the-top graphics, great speed, and scaled performance.
How it Works
An NVIDIA SLI system includes a PCI Express motherboard that supports two physical connectors that are capable of having two NVIDIA-based PCI Express graphics cards plugged into them. Joined by the NVIDIA SLI connector, the two graphics cards power one monitor, delivering earth-shattering PC performance.
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