[paulg_tt]

Hi,

I am baffled and want some advice!

I have just upgraded a friends PC. It is a Asus M2N-SLI Deluxe mobo. It used to have two sticks of 1gb (800/5/5/5) which was running great, 128 mode, and I added the memory that they had bought (800/6/6/6). The bios settings were set to auto.

When it booted it stopped at the memory bit so I rebooted and this time it passed, but was running at 667. I went to the bios and manually set 800/6/6/6 which ran, but I started getting page errors etc. And it didnt boot everytime either.

I took out the original and left bios on auto, it detected the new memory and ran without trouble. I also ran memtest86 on both sticks without error.

What am I missing? Why does it keep dropping to 667?

Thanks,
Paul.

p.s. its vista 64 hence the upgrade to 4gb.

[crjdriver]

Many boards have problems when all four slots are populated. One of these is to downclock the ram to a slower speed. I have a nvidia chipset board sitting right here in my server that does the same thing.

Next did you check the asus site and check the qvl list for ram for your board?

Mixing ram of different mfg, speed and or timing is asking for problems.

[crjdriver]

IMO it would be much better to go with a 4gig kit [2X2] of memory from corsair, kingston, or crucial. These are so cheap now it makes very little sense to mess with mis-matched memory. I just checked and you can buy a 4gig kit of corsair memory for $37.

[paulg_tt]

Hi there,

Thanks for the advice. I didn't get the ram, but I just checked and it is indeed on the QVL and is recommended by Kingston on their website.

I'll give them a choice or keeping it running a little slower or buying a set. Memory can be a little confusing/frustrating sometimes!

Thanks for your time, it is much appreciated.

Thanks,
Paul.