Are old DDR sticks compatible with new DDR2 motherboards?

airPA75

Distinguished
Jan 21, 2007
1
0
18,510
I have been shopping around trying to build a new system. To save a few bucks at the beginning I was hopping to use my old DDR 400 sticks until I can upgrade later. Can I do this?
 

John_C

Distinguished
Dec 30, 2006
150
0
18,680
Sorry. DDR Ram has 184 pins. DDR2 RAM has 240 pins. Want to guess the likelihood of successfully getting your 184 memory to work in a 240 pin slot?
 

Giraffe

Distinguished
Jun 29, 2004
528
0
18,980
Hmmm, 184 divided by 240 = 0% chance.
well you learn something everyday
I thought 184 divided by 240 = 0.766666667
:p

the only way you can use DDR ram in a new system is if you use the ASROCK 775Dual VSTA Motherboard
it supports DDR, DDR2, AGP and PCIE

the board has its downsides though