Dual Channel A is total 2gb, Can B be 1gb?

[flatron]

I have a motherboard (Gigabyte k8 4sli) that supports dual channel ddr pc3200 400MHz.

Question:
If I have 2 slots (A) operating dual 1gb (total 2gb), can I use my dual 512mb (total 1gb) on the next 2 slots (B)?  I definitely want my A to operate on 2gb dual.  Would like to know if this is possible or if it's better to go single channel; or just add one 512 on channel B where it doesn't affect the dual on A?



Thanks

[oggmonster]

Whats the exact model of the board? You're better off with matching ram sizes and speeds (ideally exactly the same make and model). So if it was me I would go for 4 x1gb of the same RAM(aslong as mobo supports it). Or just stick with your 2x 1GB. You probably can use your 2x 1gb then your 2x 512mb...but I have seen mismatching RAM speeds/sizes cause alot of hassle before.

[flatron]

Thanks for your response.

My board is : http://www.hardwarezone.com/articles/view.php?cid=6&id=1373#

Gigabyte GA-K8NXP-SLI (NVIDIA nForce4 SLI)

Let me know what you think...

[Badbonji]

I don't think so, but you can put a 1GB and 512MB in each channel for 1.5Gb per channel, which will be in dual channel mode
Otherwise I think it will only be single...

[flatron]

That's interesting thanks for your reply.  Though, has it been tested to still go dual?  I thought it has to be the same on each channel for it to work; otherwise it would be running as singles?