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Memory slot dis-function.

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Did a bad thing. Had two memory cards (DDR2-800 2GB)and added two different cards (XP2-6400 4GB). Wouldn't boot up. Took the new boards out and got the steady beep of "no memory". Moved the original cards to the other two slots and all is well.
BUT: Does that mean at least one of the two original slots can no longer be used for additional (correct) memory??

Thanks for any help!
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Welcome to Geeks2Go!

Do the two original memory modules not work in their original slots where they previously worked okay?

Regarding the new 4GB modules, the memory slots on some computers are not compatible with modules higher than 2GB, which means you can only fit modules of 2GB or less. Without knowing the make & model of your PC or motherboard I cannot check this for you, but my motherboard is only a 2 year old model and it cannot use memory modules higher than 2GB in each slot.

Furthermore, unless you have a 64-bit version of Windows installed, it's pointless having more than 4GB memory installed in total since 32-bit Windows can only use a maximum of 3.24GB. More than that installed would still be recognised by the system, and Windows will still run, but anything in excess of 3.24GB would be ignored by Windows and would therefore be a waste of money.

Edited by phillipcorcoran, 18 May 2011 - 06:28 AM.

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Putting bad ram or incorrect ram in the slots will generally not kill the slots.
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