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How can I tell if mobo supports dual channel?

Last response: in Motherboards
November 14, 2010 10:27:15 PM

I have a BIOSTAR K8T80-A7 motherboard that I'm trying to bring back to use. It had two sticks of cruccial 512M PC3200 DDR which were working fine, but then I realized that I had two sticks of crucial 1G PC2700 sitting around, so I put those in and ran memtest86. Sadly one of them had errors.

So I'm wondering whether I should run 1G of PC2700 + 512M of PC3200, or just run the 2x512M.

I'm guessing that either the mobo or the memory does not support dual channel, in which case I might as well run 1.5G, but I'd like to be sure that I'm not actually hurting performance by putting in the extra .5G
a c 78 V Motherboard
November 15, 2010 12:41:07 AM

Your board's specs do not mention dual channel, go ahead and run the 1.5GB
a b V Motherboard
November 15, 2010 12:45:38 AM

It does not looks like your motherboard supports dual channel memory.. However, running different speed ram modules (PC 2700 + PC 3200) might cause stability issues on such an old motherboard.. You are welcome to try though..
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November 15, 2010 3:20:18 AM

thanks for both replies!

I've run the vista memory diagnostic on the 1.5G installed and it came away happy - is that decent enough assurance that it will be OK? I haven't run a full memtest86 test on it. This system won't be used for anything too mission critical - in fact I don't really know what it will be used for, I just realized I had all the pieces to construct a workable machine, so I'm trying to cobble them together.
a b V Motherboard
November 15, 2010 3:26:24 AM

If its working then its all good.. No reason to worry about..
a c 78 V Motherboard
November 17, 2010 2:17:27 AM

If you get ramdom BSODs, run memtest86+ all the way through.