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Random BSODs


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I have posted this on custompc forums and I have been kindly advised to try posting here as well. I apologize if my issue has been resolved and answered before.



I have recently built myself a new pc using:


Asus P5k

Intel Core2 Quad Q6600

4x 1gb CM2X1024 6400C4

ATI Radeon HD 2900 Pro

WD 160GB Caviar HD

CoolerMaster 1000W modular PSU


and other bits and bobs


I have installed the 64bit Vista Home Premium edition.


From what I can gather, my pc seems incredibly tempermental.

At various times i will have bsod for various reasons including but not limited to:

IRQ Not Less than or equal to

page fault in non paging area (?)

System Service Exception

Memory Management


I have run a win Mem diag test on :

each ram stick on slot 0 and they all make it past 10 passes ok

differing combinations on slot 0 and slot 2 for 10 passes and all ok

slots 0,1,2 and I recieve errors.

slots 0,1,2,3 and I recieve errors.


So I run 2gb of ram on slots 0 and 2 and my pc seems to be running stable when i set CPU voltage to 1.325V and ram voltage at 2.3V.


Running a stress test on prime95 this is stable.


However when I try to run with slots 0,1,2 populated I either bsod at windows or never make it there and end in a endless cycle of reboots before it even reaches the loader.


4 slots populted is jsut as bad.


Whenever i try to populate more then 2 slots I get these errors and go back to 2 slots, however that never reaches windows and I have to drop to 1 slot, load windows before i can safely populate 2 ram slots.


I would like to have 4gb on my system and woudl appreciate any advice on what to try.

I have also installed the hotfix for vista 4gb issue.

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  • Corsair Employees

With 4 modules the memory frequency should be set to DDR667 and I would set the memory Voltage to 2.1 Volts Max and set the NB/MCH Voltage to +.05 Volts and then test the system with http://www.memtest.org to make sure its stable.


Also You'll need to install MS patch 929777 from Microsoft for more than 3 GIG in Win Vista. You can search for it at http://www.microsoft.com.

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