[angel0104]

hi! i've purchased 2 gb (1gb x 2) geil memory and when i installed it on my p4 board -- asus p5rd1-vm w/ p4 630, the bootup post shows only 1.5gb, also through the sys info in the bios & windows. how come? is any fix for this? i've transferred it to my other rig wherein it supposed to appear 3gb - 2gb geil (1gb x 2) + 1gb (2 x 512) but it only show 2.5gb - - - board is asrock 939dualsata.

please help. thanks.

[nmX.Memnoch]

This sounds like one of your 512MB sticks is being left off. The board is dual channel capable...how do you have the memory installed? It should be like this:

Slot 1 - 1GB GeiL
Slot 2 - 512MB Dialog
Slot 3 - 1GB GeiL
Slot 4 - 512MB Dialog

If you have it 1GB, 1GB, 512MB, 512MB (as the screenshot shows) then I suspect what's going on is that the board is disabling dual channel and dropping usage of the last DIMM.