BSOD with new GPU (7870)

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11 Apr 2007
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Hi all, I received my new VTX7870 today & was just doing a quick 5 minute test of Far Cry 3 when I got a BSOD with the following:

dxgmms1.sys
Page fault in a non paged area...

So this looks like a direct x issue but I'm wondering if its possible that my overclock is not that stable. I'm running my i7 920 @ 3.8Ghz (but only since yesterday) so maybe that's the issue.

I was using the latest drivers & latest motherboard BIOS.

Anyone had this error? :(
 
I had been running the PC at 3.6Ghz for a while. I don't think it was as stable as it could have been - every now and then (although not that often) if would reset itself to defaults so there is obviously something I'm missing. I had been running at stock for quite a while more recently but when I bought the new GPU wanted to give the CPU a boost! I've tested the RAM (in fact about 18 months ago the RAM was replaced because it was faulty) & it tested fine.

Any suggestions much appreciated, I'd really like to get a little more from this CPU.

Added my rig in my sig but as its not showing up yet here it is:
Gigabyte X58 UD4P - Intel Core i7 920 - 6GB (3x2GB) Corsair XMS3 Classic, DDR3 PC3-10666 - 90Gb Vertex 2 SSD - HD7870 GPU - HX520 PSU - Noctua NHU12

Here are my settings:

CPU Clock Ratio ................................ [20x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled]
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... 13 << also tried 12 & 14 but 13 worked previously for me

Isonchronous Frequency ..................[Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) .....................[180]
PCI Express Frequency (MHz) ........... [100]
C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]

Advanced DRAM Features:
Performance Enhance ...................... [Standard] << Also tried Turbo
System Memory Multiplier (SPD) ........ [Manual] 6
DRAM Timing Selectable (SPD) .......... [MANUAL]
Set to [Expert]

SET TIMINGS MANUALLY TO 9-9-9-24

Memory Frequency 1066 1080

Advanced Voltage Control:
CPU
Load Line Calibration ...............[Enabled]
CPU Vcore ...............................1.312 << Also tried 1.35
QPI/VTT Voltage 1.150v ............1.2 << Also tried 1.25
CPU PLL 1.800v ........................1.84

MCH/ICH
PCIE 1.500v ...........................1.5 [AUTO]
QPI PLL 1.100v .......................1.1 << Also tried a little more here
IOH Core 1.100v .....................1.24
ICH I/O 1.500v .......................1.5 [AUTO]
ICH Core 1.1v ........................1.14

DRAM
DRAM Voltage 1.500v ..............1.5 [MANUAL] << Tried 1.55
 
Last edited:
looking at those settings your qpi/vtt is way too low,set to atleast 1.32v-1.35v and retest

uncore frequency is always twice your ram multi and add one to it,so your 6x ram multi x2 +1 = 13x
 
Just to report back on progress. I upped QPI/VTT a little, ran OCCT for about 10 minutes and got a BSOD.

I was thinking it might be worth increasing the RAM voltage so changed that to 1.56 (from 1.5) & upped QPI/Vtt a little more. Ran OCCT again and this time it ran fine for 30 minutes. Need to test for longer though. My CPU temps were around the 65 mark during testing. (Max)

Here are my voltages. Do u think they look ok? Is the RAM voltage safe to run at 1.56? Also, is OCCT what I should be using to test - been out of the game for too long so not up to speed! :cool:

bios2.jpg
 
yeah ram voltage is fine

you can improve your idle temps drastically and a few degrees of load temps if you switched to using dvid

set cpu voltage to normal and then look to see how much cpu v is being used in the bios

then add the difference from normal to 1.3v into + dvid

if you tell me how much normal uses I can tell you what to enter,and enable all power saving states except c1e that doesn't matter aslong as you use balanced power profile in windows 7/8
 
Ok, so I set CPU voltage to 'normal' and then went to PC Health Status (presumably this is where u mean to check the voltage) and it's saying Vcore is 1.284.
 
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