4/18 Anyone add in memory to a PC lately? Do DDR memory sticks have to be
symmetric on modern mbs? I seem to recall that I've added in memory
in the past that was non-symmetric and it worked. Or is this one of
those "it depends on the mb" questions?
\_ By symmetric, do you mean "matched in capacity" or are you refering
to physical symmetry.
\_Matched capacity and speed of RAM(Access time).
\_ I built a Pentium 4 2.8 GHz system a couple months ago using an Asus
motherboard, and the manual said something about a matched DDR
pair giving you two channels -- you could use just one DIMM, but
then it would be one channel. Go download the manual, the mobo
was P4800 or something.
\_ You just have to set up the PC to work at the slowest common
denominator for timings. The capacity wouldn't normally have
to be the same but they probably do for dual-channel operation.
\_ Well, what I did was I got this cheapie PC to run simulations on.
It's an Athlon 2400 or something. It had two sticks of 128 in it.
I got a stick of 512 DDR and replaced one of the sticks, the mb
only had two slots for RAM. When I booted it only detected 128.
If I throw out the other stick I get 512. I guess the PC is too
crappy for assymetric, but it seems weird because it runs fine
with one stick of RAM on it. The two original sticks of 128 do
not match, btw. |