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must RAM be in pairs?

pickarooney · 2009-10-18 08:19:20

I have 4 memory slots on my motherboard, 2 of which are occupied by 512MB sticks of DDRAM(1) @ 400MHz. Can I simply add a 1GB (or even 2GB) stick to one of the remaining banks or do I have to get two 512MB sticks?

18-10-2009 8:19am

#1

pickarooney

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I have 4 memory slots on my motherboard, 2 of which are occupied by 512MB sticks of DDRAM(1) @ 400MHz. Can I simply add a 1GB (or even 2GB) stick to one of the remaining banks or do I have to get two 512MB sticks?

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#2 18-10-2009 2:41pm

Solitaire

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No problem at all, but if your mobo supports Dual-Channel (probably not given its vintage) you'd get slightly better performance from a matched pair of 512MB sticks. Another issue is that if your mobo is really old and has Dual-Channel it might not have the Flex enhancements, so if you put an unmatched 1GB in there you might take the existing 2*512MB out of Dual-Channel mode. But if there's a fair price disparity you shouldn't even bother checking IMHO and just slap in the 1GB stick

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