[PeterAlevizos]

i have a geil ddr400 1 gig stick of ram now ive recently purchased 2 512 sticks and for some reason there is instability and my pc crashes

any help for me please?
thanks guys

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This is usually caused by the Memory having different timing between the sticks.

http://www.amd.com/u...5E13335,00.html

I had a old AMD 933 gateway computer that when i added a 256 stick in with the 512 stick the computer started crashing at least once every day. the 512 stick was centon, and the 256 stick was a unknown brand but had infineon chips on it. Pulled the 256 out and the computer quit crashing.

SRX660

[SRX660]

This is usually caused by the Memory having different timing between the sticks.

http://www.amd.com/u...5E13335,00.html

I had a old AMD 933 gateway computer that when i added a 256 stick in with the 512 stick the computer started crashing at least once every day. the 512 stick was centon, and the 256 stick was a unknown brand but had infineon chips on it. Pulled the 256 out and the computer quit crashing.

SRX660

[HPDV8315LOVER]

Depending of what brand you are using.

If the computer was crashing for having two different brand of RAM, then how come my old Presario 5333CL never crashes after upgraded my ram and there's two brand on there now.

[SRX660]

HPDV, i don't know the answer to that. I have a H-P vectra that i can throw almost any brand of PC133 or PC100 memory in and it works. It doesn't matter what combinations i use it just always works. The only thing i don't like about that computer is the message at boot up that the memory has been changes and i have to hit the enter key for the computer to accept it. Then the computer will boot up. Other computer i have owned have been very picky about the memory. ASUS Mb's seem to be very picky. I have noticed that some MB makers specify what memory will work on their MB's at their website. I have seen some MB's not boot up at all with the correct type of memory installed but will boot up with a different brand of memory. All i can do is find what works and use it.

SRX660