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Asus P5Q with CM2X2048-8500C5D


Howard_Woodard

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I've been trying to troubleshoot occasional exception code 5 abends. Most things that I've found on the web seem to point [most often] to RAM. So I went in to BIOS to try to manually set the timings. When I got into BIOS I didn't find everything that I expected to nor were some of the timings what I would have expected.

 

I don't find anything about command rate on any of the BIOS pages or within the parameter value selections. Nor do I find tRC which my memory specs says should be set to 22.

 

Following is from my BIOS:

 

Configure System Performance Settings

 

CPU Ratio Setting [Auto]

FSB Strap to North Bridge [Auto]

DRAM Frequency DDR2-1066MHz

DRAM Timing Control [Manual

 

1st Information : 5-5-5-18-3-52-6-3

 

CAS# Latency Eta) [5 DRAM Clocks]

DRAM RAS# to CAS# Delay [5 DRAM Clocks]

DRAM RAS# Precharge [5 DRAM Clocks]

DRAM RAS# Activate to Precha [18 DRAM Clocks]

RAS# to RAS# Delay [Auto]

Row Refresh Cycle Time [Auto]

Write Recouery Time [Auto]

Read to Precharge Time [Auto]

 

The RAM voltage is set to 2.1 vdc.

 

Is anyone familiar with this mobo/memory combination that can tell me how to best set it up?

 

Thanks in advance,

 

Howard

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Let's diagnose first. Your settings are already such that you should not be finding DRAM issues.

 

Download memtest from--->

and extract the ISO image. Burn the ISO image to an CD-ROM disk.

Download CPU-z from
.

Boot to the Memtest CD and allow for two full passes. Then, if stable, enter Windows and post screenshots of the CPU-z CPU, Memory and SPD tabs.

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