ASUS P5W DH - Problems + Fixes Thread

[Kynoo]

Your memory is only rated 667 - 4x1GB puts more strain on the memory controller and the MB. You probably need higher MCH and looser timings with 4x1GB. What are all your current BIOS settings ,volts, memory timings etc and what are you running your CPU at. Are you trying to run memory 1:1 or higher - if so you really want better out of the box spec memory like Crucial 8500C5 which is great o/c memory at a very cheap price.

I dont try/want to overclock, i juste want to have all my ram under Vista

Voltage : Auto and i test from 1.8 to 2v without issue.

latency : Manual from 4/4/4/12 to 5/5/5/15 without issue ( my ram is a 4/4/4/12 )

Cpu : Stock fsb and voltage.

Ram FSB : 667

[sesdave]

I dont try/want to overclock, i juste want to have all my ram under Vista

Voltage : Auto and i test from 1.8 to 2v without issue.

latency : Manual from 4/4/4/12 to 5/5/5/15 without issue ( my ram is a 4/4/4/12 )

Cpu : Stock fsb and voltage.

Ram FSB : 667

I was running 4x1GB under Vista x64 on the P5W no problem - it likes memory best at 1:1 but I do rember I posted about a Vista 4GB bug for which there is a patch..I will dig it up and repost.

Shame not to o/c an E6600! If you are running stock the CPU will only be 266 x9 = 2.4 which means you memory is only running DDR532 which is underutilised. You want to run the CPU with FSB =333 (333x9=3.0) to get the memory running at rated speed 1:1. An e6600 should do that no problem on stock volts ot there about. It is always best to maually set the BIOS settings - then you can fiddle to get it running stable with confidence. In the meantiime Set A1 to maunual and set the following:

CPU Freq=333
DRAM freq=667
Perf Mode = Standard
PCI express=100
PCI Clock=33.3

Memory volts= 1.9 or 2.0
CPU vcore=1.375 - 1.4v
FSB=1.3
MCH=1.55
ICH=1.2

Set your memory to 4,4,4,12,4 and disable both DRAM ECC,DRAM Throttling and and Hiperpath. leave memory remap enabled.

Under CPU settings disable all PICE ..

Under HW monitor disable all q fan functions.

This will give you a very mild o/c to 3.0 amd much better perforamce. Use the same settings even if you want to run with CPU frequency at 266 and lower memory. Here a link to a guide for expamles of the settings if confused http://www.ocforums.com/showthread.p...03#post4808903.

[sesdave]

Here is a link to my previous post with links to Microsoft Hotfix and background details re this known 4GB memory issue.

http://www.xtremesystems.org/forums/...5&postcount=22

Read the latest posts on this thread as things may have moved on since I posted - there may be a later hotfix! I never needed it as when I switched to crucial ballistix and a P5K MB I never encountered any issues.