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2 pairs of TWIN2X4096-8500C5D


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I have severals BSODs with my new system which is about 3 months old. The first time I installed XP Pro SP2 x64 including all drivers the system ran fine. After 3 or 4 weeks I encountered my first BSOD. After a few days and several reboots it really got worse so I reinstalled the system from scratch but the result was the same. So I tried memtest86+ v2.1 with USB legacy support disabled.


The first setup:


BIOS settings all on AUTO

Memory was detected as DDR2-1066


The results:


1.) although the P5Q Pro detected my Corsair memory as 1066 it was timed to 5-5-5-18 (displayed by memtest)

2.) 15 test errors @ test #3 (5.9xxMB)


I got myself on coffee and tested each memory module on each ram bank with no errors while I let the settings to standard (that was a long long night, but sleeping is for... :-) ).


The result: not one error.


The second setup:


Set the voltage to 2.10, the timing to 5-5-5-15 and the frequency to 1066

Put all memory modules back on the banks again


The results:


1.) memtest detected the memory as 1068 and 5-5-5-15

2.) not one error for 12 hours of testing


I kept this settings and the system ran fine for about 1 week. But since yesterday the BSODs keep coming again. The last one (30 minutes ago) was a "STOP: 0x00000109".


Before I fire up memtest again I would like to ask if anyone has a complete(!) guide for all ram settings of the P5Q Pro.


Best regards :sunglasse

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I am sorry but we do not have MB specific BIOS settings and With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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