Crossfire - How many monitors?

Foxie3a · 10-09-08, 07:21 PM

Simple question.. I have the Supermicro X7DWA-N motherboard that has two PCI-E 16x Gen2 slots, and it is compatible with ATI's Crossfire. I currently have two Radeons(listed in sig). Each is a different model, and they run independently of each other. The reason for having a second one is only because I need more than two monitors.

Here comes the question... Can I have lets say two 3870s, run them in CF-X, and still use all four outputs on the cards? I read the wiki on this, and it says you can use multiple outputs on CF-X, but it doesn't go into detail. If I ever do anything GPU intensive, it's a game, and only one monitor, so I don't need to share GPU power over multiple screens.

Thanks for the help!

deathman20 · 10-10-08, 12:49 PM

Well CF works on 2 montiors that I know of for sure. Even in games from what I've seen in 1 game at least. I've never attempted to hook it up to a secondary monitor on the 2nd card to see if it would work in CF but I doubt it.

jimmers · 10-10-08, 01:49 PM

Crossfire only supports 2 monitors on the main card. Another monitor on the second card won't work with CF enabled.

10-09-08, 07:21 PM	Thread Starter #1
Foxie3a Normal Member Join Date: Sep 2003 Location: Modesto, CA	Crossfire - How many monitors? Simple question.. I have the Supermicro X7DWA-N motherboard that has two PCI-E 16x Gen2 slots, and it is compatible with ATI's Crossfire. I currently have two Radeons(listed in sig). Each is a different model, and they run independently of each other. The reason for having a second one is only because I need more than two monitors. Here comes the question... Can I have lets say two 3870s, run them in CF-X, and still use all four outputs on the cards? I read the wiki on this, and it says you can use multiple outputs on CF-X, but it doesn't go into detail. If I ever do anything GPU intensive, it's a game, and only one monitor, so I don't need to share GPU power over multiple screens. Thanks for the help! __________________ Dual Xeon X5482 E0 3.2/12M/1600 (400x8 1.26v) Supermicro X7DWA-N, 14GB ECC/Fully Buffered (400, 5-5-5, 1.8v) Radeon 5770 1GB Triple LCDs (22/22/24") Boot: 5x SAS/15K Drives in RAID5 (~350mb/s) Storage: 17 hard drives from 10K to 15K RPM. All SCSI Hot Swap. PCP&C 1.2KW Single 12v, 90A Rail Auzen X-FI Prelude <- Digital -> Denon Receiver -> Sennheiser HD650 Headphones.
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10-10-08, 12:49 PM	#2
deathman20 High Speed Senior Join Date: Aug 2002 Location: Where the Cheese Heads Live	Well CF works on 2 montiors that I know of for sure. Even in games from what I've seen in 1 game at least. I've never attempted to hook it up to a secondary monitor on the 2nd card to see if it would work in CF but I doubt it. __________________ -=The Gamer=- MSI Z68A-GD65 (G3) \| i5 2500k @ 4.5Ghz \| 1.3875V \| 28C Idle / 65C Load (LinX) 8Gig G.Skill Ripjaw PC3-12800 9-9-9-24 @ 1600Mhz w/ 1.5V \| TR Ultra eXtreme 120 w/ 2 Fans Sapphire 7950 VaporX 1150/1500 w/ 1.2V/1.5V \| 32C Idle / 64C Load \| 2x 128Gig Crucial M4 SSD's BitFenix Shinobi Window Case \| SilverStone DA750 \| Dell 2405FPW 24" Screen -=The Server=- Synology DS1511+ \| Dual Core 1.8Ghz CPU \| 30C Idle / 38C Load 3 Gig PC2-6400 \| 3x Samsung F4 2TB Raid5 \| 2x Samsung F4 2TB Heat
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10-10-08, 01:49 PM	#3
jimmers Member Join Date: Feb 2005 Location: Winnipeg, MB Canada	Crossfire only supports 2 monitors on the main card. Another monitor on the second card won't work with CF enabled. __________________ MOBO - Asus P5Q Deluxe CPU - Intel Q6600 @ 3.4ghz with Thermalright 120 Extreme/Scythe S-Flex fan RAM - 4gigs OCZ DDR2 Reaper 1066 Video Card - Sapphire 6870 Hard Drives - 3x Western Digital 1TB, OCZ Vertex II 120 Sound Card - Sound Blaster Audigy 2 ZS PSU - Corsair 850AX Case - CM Stacker
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