can't break 350fsb with my QX6850

iLoki · Dec 17, 2008

I just can't seem to get this thing past 350fsb

Right now its at 3.5ghz (350x10) and 1.4375v BIOS, 1.368v actual
VTT = 1.3
Memory = 1.8
SPP = 1.35
MCP = 1.5
SPP <-> MCP = 1.2

GTLrefs are all auto, I don't understand them enough.. >.<
Why can't I get further? =(

liftedcj7on44s · Dec 17, 2008

what are your temps?

EVGA 780i SLI BIOS: p08<---- This may be a problem too!

iLoki · Dec 17, 2008

temps are fine, I don't break 65C hardly (70-72 with LinX)

what bios revision would you suggest?

liftedcj7on44s · Dec 17, 2008

what are you using to monitor temps?
i was referring to the board.

i use the latest real temp beta. its reports the correct tjmax.

Blazing fire · Dec 17, 2008

Is 2.7 the latest one?

http://www.techpowerup.com/realtemp/

liftedcj7on44s · Dec 17, 2008

no the latest is 2.90 here
http://www.fileden.com/files/2008/3/3/1794507/RealTempBeta.zip

redduc900 · Dec 17, 2008

A Vcore of 1.368 seems awfully high just for a 500 MHz overclock. Using RealTemp--> "Settings" page, list the Min. and Max. VID values for your chip. And when you say you can't get it past an FSB of 350 MHz, do you mean the PC won't POST, Windows locks up, Prime fails, etc.? Try a different NB Strap like 5:6 (333/800), which at an FSB of 350 MHz would put your RAM at 840 MHz. Use this template for the 780i to post all of your current BIOS settings at FSB 350 MHz (disregard the settings in the template)...

Code:

eVGA/XFX 780i BIOS Settings (P03)
 
Advance Chipset Features
 
System Clocks
 
** Frequency Setting **
CPU Multiplier - x9
PCIe x16_3, MHz - 120
SSP<->MCP Ref Clock, MHZ - 250.0
 
** HT Multiplier **
nforce SPP --> nForce MCP 4 x
nforce SPP <-- nForce MCP 4 x
 
** Spread Spectrun Setting **
x CPU Spread Spectrun - Disabled
x HT Spread Spectrun - Disabled
x PCIe Spread Spectrun(MCP) - Disabled
x SATA Spread Spectrun - Disabled
 
FSB & Memory Config
 
FSB - Memory Clock Mode - Unlinked
x FSB - Memory Ratio - Auto
FSB (QDR), MHz - 1700
MEM (DDR), MHz - 907
 
Memory Timing Setting
 
Memory Timing Setting - Expert
tCL (CAS Latency) - 4
tRCD - 3
tRO - 3
tRAS - 8
Command Per Clock (CMD) - 2T
 
** Advance Memory Settings **
tRRD - Auto(4) (4)
tRC - Auto(26) (26)
tWR - Auto(6) (6)
tWTR - Auto(10) (9)
tREF - Auto (7.8uS)
 
CPU Configuration
 
Limit CPUID MaxVal - Disabled
Intel SpeedStep - Disabled
PPM Mode - Native Mode
CPU Thermal Control - Disabled
C1E Enhanced Halt State - Disabled
Excute Disable Bit - Disabled
Virtualization Technology - Disabled
CPU Core 0 - Enabled
CPU Core 1 - Enabled
CPU Core 2 - Enabled
CPU Core 3 - Enabled
 
System Voltages
 
CPU Core - 1.60000 (1.52v)
CPU FSB - Auto (1.4v)
Memory - 2.200v ( 2.200v)
nForce SPP - Auto (1.40v)
nForce MCP - Auto (1.500v)
 
GTLVREF Lane 0 - Auto (+00mv)
GTLVREF Lane 1 - Auto (+95mv)
GTLVREF Lane 2 - Auto (+00mv)
GTLVREF Lane 3 - Auto (+00mv)
 
HPET Function - Disabled
 
Intergrated Peripherials
 
RAID Config
 
RAID Enabled
SATA 1 (A0) RAID - Enabled
SATA 2 (A1) RAID - Enabled
SATA 3 (B0) RAID - Enabled
SATA 4 (C1) RAID - Enabled
SATA 5 (B1) RAID - Disabled
SATA 6 (C0) RAID - Disabled
 
IEEE1394 controller - Disabled
HD Audio - Disabled
IDE HDD Block Mode - Enabled
Onboard FDC Controller - Enabled
Onboard Serial Port 1 - Disabled
 
PnP/PCI Configurations
Init Display First - PCIEx
Reset Configuration - Disabled
Resources Controlled By - Auto(ESCD)
 
PCI/VGA Palette Snoop - Disabled
PCI Latency Timer(CLK) - 32
 
** PCI Express relative items **
Maximum Payload Size - 4096

iLoki · Dec 17, 2008

It blue screens once stress is applied with LinX
Min vid is 1.1625 max is 1.4000
and generally I use CoreTemp

My Q6600 would barely make 3.5 with 1.5++ actual voltage.. So I'm happy with 3.5 @ 1.36, but I really feel that this processor has a lot more potential, I just can't seem to take it any further. I'm doing all of the research I can on the GTLREF's which seem to be important for keeping vcore and vtt down while reaching higher FSB's

Code:

eVGA/XFX 780i BIOS Settings (P03)
 
Advance Chipset Features
 
System Clocks
 
** Frequency Setting **
CPU Multiplier - x10
PCIe x16_3, MHz - 100
SSP<->MCP Ref Clock, MHZ - 200.0
 
** HT Multiplier **
nforce SPP --> nForce MCP 4 x
nforce SPP <-- nForce MCP 4 x
 
** Spread Spectrun Setting **
x CPU Spread Spectrun - Disabled
x HT Spread Spectrun - Disabled
x PCIe Spread Spectrun(MCP) - Disabled
x SATA Spread Spectrun - Disabled
 
FSB & Memory Config
 
FSB - Memory Clock Mode - Linked
x FSB - Memory Ratio - Synced
FSB (QDR), MHz - 1400
MEM (DDR), MHz - 700 
 
Memory Timing Setting
 
Memory Timing Setting - Expert
tCL (CAS Latency) - 5
tRCD - 6
tRO - 6
tRAS - 18
Command Per Clock (CMD) - 2T
 
** Advance Memory Settings **
tRRD - Auto(4) (4)
tRC - Auto(26) (26)
tWR - Auto(6) (6)
tWTR - Auto(10) (9)
tREF - Auto (7.8uS)
 
CPU Configuration
 
Limit CPUID MaxVal - Disabled
Intel SpeedStep - Disabled
PPM Mode - Native Mode
CPU Thermal Control - Disabled
C1E Enhanced Halt State - Disabled
Excute Disable Bit - Disabled
Virtualization Technology - Disabled
CPU Core 0 - Enabled
CPU Core 1 - Enabled
CPU Core 2 - Enabled
CPU Core 3 - Enabled
 
System Voltages
 
CPU Core - 1.4375 (1.36v)
CPU FSB - 1.3v
Memory - 1.800v
nForce SPP - 1.35v
nForce MCP - 1.2v
 
GTLVREF Lane 0 - Auto (+00mv)
GTLVREF Lane 1 - Auto (+95mv)
GTLVREF Lane 2 - Auto (+00mv)
GTLVREF Lane 3 - Auto (+00mv)
 
HPET Function - Disabled
 
Intergrated Peripherials
 
RAID Config
 
RAID Enabled
SATA 1 (A0) RAID - Disabled
SATA 2 (A1) RAID - Disabled
SATA 3 (B0) RAID - Disabled
SATA 4 (C1) RAID - Disabled
SATA 5 (B1) RAID - Disabled
SATA 6 (C0) RAID - Disabled
 
IEEE1394 controller - Disabled
HD Audio - Disabled
IDE HDD Block Mode - Enabled
Onboard FDC Controller - Enabled
Onboard Serial Port 1 - Disabled
 
PnP/PCI Configurations
Init Display First - PCIEx
Reset Configuration - Disabled
Resources Controlled By - Auto(ESCD)
 
PCI/VGA Palette Snoop - Disabled
PCI Latency Timer(CLK) - 32
 
** PCI Express relative items **
Maximum Payload Size - 4096

iLoki · Dec 18, 2008

I can POST and boot into windows at all the way up to 3.75ghz, I haven't tried any higher, but I can't get anything above 3.5ghz stable.. Can anybody see what may be keeping me from reaching a stable overclock? At the moment I'm kind of suspecting my ram, and luckily newegg had a really good deal on OCZ Reaper 1066, so I picked up a 4 gig kit that should be here within the next few days.

EarthDog · Dec 18, 2008

If its your ram, or to eliminate it from being the problem, run it unlinked and set it to factory speeds (400Mhz). Currently you are running your ram(according to your sig) @ 475Mhz for some reason. Why are you running above a 1:1 ratio and trying to see the the max CPU? Thats a no no!! One thing at a time!!!

iLoki · Dec 18, 2008

it's not at 475 anymore >.<
I changed it to Linked and Synced for the 1:1 FSB to DRAM
its running at 700 right now.

EarthDog · Dec 18, 2008

Does your ram clear Memtest at those speeds?

iLoki · Dec 18, 2008

yea, but it was cheap ram when I bought it lol
It's probably not the problem but I'm just confused that I can push the processor past 1.5v in bios and still not be stable above 3.5ghz/350x10

EarthDog · Dec 18, 2008

That thing should be ablet to hit 3.5Ghz on STOCK volts. Did you try raising your FSBv? I see its at 1.3. What is stock for that?

iLoki · Dec 18, 2008

1.2v

and thats what I thought, but as I said earlier my q6600 needed 1.5v+ actual to be stable with 3.5ghz, so 1.36v for 3.5ghz was nice lol

EarthDog · Dec 18, 2008

Completely different chip dude... 65nm vs 45nm...

Im at 1.35v for 3.8Ghz stable with an inferior chip. when I get home I can post my FSB/VTT volts... but I think Im at 1.36 or so for 3.8Ghz...

YOur ram, 2 sticks or 4?

Have you tried raising only the multi and leaving the FBS @ 333?

iLoki · Dec 18, 2008

2 sticks for the memory, and yea I've tried leaving the FSB at 333 and changing the multiplier to 11, (3.66ghz) and it blue screens almost immediately when using LinX or Prime95.
and the QX6850 is 65nm

VTT is 1.3v right now

iLoki · Dec 19, 2008

Definitely not an FSB problem.
I have now tested and gotten 400x8, 389x9, 437x8 and 350x10

all stable. As soon as they are pushed any further, BSOD as soon as a load is applied with Prime95 or LinX.

oh, and if a mod doesn't mind, could you change the name of this thread?
it should read 3.5ghz instead of 350fsb cuz the fsb isn't really accurate anymore and I don't wanna create another thread for the same problem.
Thanks ;D

liftedcj7on44s · Dec 19, 2008

what Power supply are you running? you do know that a QX9850 at 3.5 or 3.6ghz has the ability to pull over 200 watts of power.

EarthDog · Dec 19, 2008

So long as he has a decent brand name with 30A on the 12v rail, he should be fine...

His entire rig wont be pulling more than mine (Kil A Watt showed 463W at the plug for my PC, so 36xW @ 80% eff).

can't break 350fsb with my QX6850

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