Dual channel
 

Hello,

I'm currently running 2x1gb sticks and 2x512mb sticks of DDR400 on a ASUS A8N-SLI S939 motherboard running Windows XP home

So my question is are both sets of ram running in dual channel, what set takes priority ex. channel 1-3 or 2-4 for timings, and any other relevant info you may have.

Thanks,

Yeah if patching RAM's are in specific channels then they are dual'd.

Not sure on that motherboard but most asus works like Channels 1+2 and 3+4, so have you 2 1GB sticks on 1 and 2, your half gig on 3 and 4. All of them will be dual'd.

Yes, but it depends on what slots they are, all ASUS mobos as far as i know work in both ways, for AMD it´s 1 & 2 and then 3 & 4, for Intel mobos, it´s 1 & 3 and then 2 & 4.

Depends on the board/chipset moreso than the type of CPU (intel/amd) it supports i've found. It's usually 1+2, 3+4, or 1+3, 2+4 as previously stated (or 1+2+3+4 of course). Not sure why you want to know which will have 'priority' as I don't understand what you mean. For dual-channel to work properly you need to make sure matched pairs are fitted (speed and size ideally). Although dual-channel will most likely still work on your board, I would see about getting rid of those 512 sticks and maybe placing some more 1GB sticks in (check your chipset doesn't have a celing of 2GB though).

I didnt notice the naughty url in his sig before lol

... not anymore... ;)