What would cause no boot when 4 mem slots filled but not 3?

By caron ·
Gateway GM5084 mb: C51GU01
ram: 4x512 DDR400
System boots with 3 mem slots occupied, but not with all 4 (total freeze before XP splash screen)
Individual sticks test OK with Memtest86+.
Also, system will occasionally freeze after several hours with 3 sticks installed. Board temps show normal in BIOS. Can't do any tweaking with this bios.
Suspect PS issues. Maybe?

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OK,OH. I'll try that iso

by caron In reply to OK some easy explanations ...

Thanks for the reply. The system never gives strange beeps at POST - just one solid beep. To answer your question, it will intermittently boot with 1 or 3 simms in place, but not 2 or 4. I'll occasionally get to the Win XP desktop, but sys soon freezes. I will get the Ultimate boot cd you mention and try it. Thanks again.


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Sounds as if the M'Board is on it's way to

by OH Smeg In reply to OK,OH. I'll try that iso

Silicon Heaven then.

Unless of course you are not fitting the RAM to the Matched Pair RAM Sockets. But even still it should work with the RAM in Sockets 1 & 3 as well as 1 & 2.


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