Memory issues need some help

[fatcat]

Hi all,

Ok here is,

A few days ago I swapped my P-35 Gigabyte MB + C2D 6850 to my wife and got myself a P-45 + Q9450 for me. I never had issues with my memory with the P35 but now it can't run Mem Test for more than a few seconds before showing errors. I have 4 x 2 Gig of ram. G. Skill DDR2-1000. In the BIOS, I have set the speed to DDR2-1000 and I have adjusted the timing manually at 5-5-5-15 and upped the voltage to the required 2.1V. When I first installed the memory modules in my system I ran Mem test for about 5-6 hours without any problems. What made me think that I had a problem is that when I was away from my PC, it rebooted itself and was showing me the booting screen saying that my over clock had failed which obviously wasn't the case since I had no active over clock .... I also tried to up the NB voltage by +0.1 and +0.2 but to no avail. Is there any setup that I should try before testing the memory stick one by one which I'll do if I have no other choice but its a tedious process and might not be necessary.

Thanks for you help

 

[fatcat]

Some updates here.

After testing all memory stick on an individual basis, they all passed Mem Test. What else, each time I would reboot my PC, the loading screen would stop and this message would be displayed : Over clockfailed, press F1 to enter bios setting or F2 to load default values. I would than go into bios change nothing and save and exit then into Mem Test. 2 Sticks of memory will produce an error almost instantaneously.

I tried other sticks of memory, basic Kingston value Ram DDR2-800 5-5-5-18 at 1.8V. Once installed, all the Bios settings were left to auto but the speed which is set a 800. This seems to work great, no message about failing over clock and no errors in Mem Test with 2 sticks of memory.

Another thing I have noticed, I tried to adjust the RAM timing manually 5-5-5-18 this cause booting message of an over clock failure. In auto mode the system set the timing at 5-5-5-15 which is pretty darn near the manufacturer specs. but it seems my system doesn't like it. I am currently testing my G. Skill into another system and they seem to run fine.....

Honestly this is a bit perplexing. I am still not sure if my MB has some kind of trouble or it's just very memory picky .........