I have Asrock 4core1333-GLAN R2.0 motherboard and have been using 2X 1gb Corsair XMS2 5-5-5-12 800mhz DDR2 in dual channel mode.
I recently got hold of 2X 512mb Corsair XMS2 5-5-5-12 800mhz DDR2, and figured that i could use these on second memory channel and get 3gb of RAM which would be pretty optimal, since i run 32bit XP. I was a bit worried about mixing memory sizes and thought that i could lose dual channel mode.
Well, turns out i lose more than that. When all 4 modules are in, bios thinks that they´re all 512mb, giving me 2gb total and OS fails to boot. When i insert 2X 1gb + 1X 512mb one of the 1 gb sticks shows as a 512 mb and i get 2gb total again. Didn´t even bother trying to boot up OS. If i mix 1gb and 512mb modules in same memory channel, the computer won´t even POST.
Asrock manual says, that to use 4 modules, they all have to be identical but i didn´t believe them since mixing different memory sizes has worked before.
Is there something i could do in BIOS to get 3gb, or is this just unworkable situation?
I recently got hold of 2X 512mb Corsair XMS2 5-5-5-12 800mhz DDR2, and figured that i could use these on second memory channel and get 3gb of RAM which would be pretty optimal, since i run 32bit XP. I was a bit worried about mixing memory sizes and thought that i could lose dual channel mode.
Well, turns out i lose more than that. When all 4 modules are in, bios thinks that they´re all 512mb, giving me 2gb total and OS fails to boot. When i insert 2X 1gb + 1X 512mb one of the 1 gb sticks shows as a 512 mb and i get 2gb total again. Didn´t even bother trying to boot up OS. If i mix 1gb and 512mb modules in same memory channel, the computer won´t even POST.
Asrock manual says, that to use 4 modules, they all have to be identical but i didn´t believe them since mixing different memory sizes has worked before.
Is there something i could do in BIOS to get 3gb, or is this just unworkable situation?