Quote Originally Posted by Geek77 View Post
I dont know if you noticed but the RAM timings are in different order on P5W-DH.

That is why many people have to use "by SPD", the memory won't boot with incorrect timings.

I passed through this myself, finally noticed the timings order and switched RAS precharge & RAS to CAS delay, no more instability, all workin like a charm.

Check on your systems, it is possible that they are switched and if they are - try configuring them manually instead of using "by SPD".



Before figuring this out - I also had "by SPD", and it was UGLY - the motherboard set them to 5-6-6-18 or something...
i actually use the 5-6-6-18 timings. my super pi 1m result is better than using memset to make my timings 5-4-4-12. better by almost a full second.

for some reason memset won't let me change my cas from 5 to anything else. no one here seems to be able to answer why that would be...