Memory problem

G

Guest

Hi,
I have a Ecs P4vxasd Motherboard, Pga socket 423. The mainboard accomodates
2 DDR 184 pin 2.5v + 2 SDR 168 pin 3.3v Dimm sockets with a total capacity of
2 GB system memory. I was running 2 DDR (512 mb pc2100 sticks). I started
getting various blue screen errors, to go along with several reloads. I
downloaded a memory diagnostic program from this site. My computer didn't
pass the test, so I removed on stick and it passed this time. I assumed that
the memory stick was my problem, and ordered a DDR 512 mb pc3200 stick from
Curcial.com. I installed the new memory and got the same error from the diag.
test. I began swapping memory around. all three sticks worked fine by
themselves in either slot, but put two together & I would get a bad diag.
check. Has anyone seen this problem before.
Thanks.
 
G

Guest

DDR memory runs in matched pairs. You must have 2 sticks of the same memory
and they are usually placed in alternate memory slots. The slots are usually
color coded as to which slots the matched memory pairs are inserted in to.
Mixing memory modules of different speeds causes problems. (ie pc2100,
pc3200) Your motherboard must also support the speed of the memory module.
The Corsair website has an excellent tutoral on memory.
 
P

Patrick Keenan

4hammer said:
Hi,
I have a Ecs P4vxasd Motherboard, Pga socket 423. The mainboard
accomodates
2 DDR 184 pin 2.5v + 2 SDR 168 pin 3.3v Dimm sockets with a total capacity
of
2 GB system memory. I was running 2 DDR (512 mb pc2100 sticks). I started
getting various blue screen errors, to go along with several reloads. I
downloaded a memory diagnostic program from this site. My computer didn't
pass the test, so I removed on stick and it passed this time. I assumed
that
the memory stick was my problem, and ordered a DDR 512 mb pc3200 stick
from
Curcial.com. I installed the new memory and got the same error from the
diag.
test. I began swapping memory around. all three sticks worked fine by
themselves in either slot, but put two together & I would get a bad diag.
check. Has anyone seen this problem before.
Thanks.

Haven't seen this but if the memory sticks individiually work fine, but
incombination fail, you might consider that the memory controller components
on the motherboard are at fault.

HTH
-pk
 
G

Guest

jerryrock said:
DDR memory runs in matched pairs. You must have 2 sticks of the same memory
and they are usually placed in alternate memory slots. The slots are usually
color coded as to which slots the matched memory pairs are inserted in to.
Mixing memory modules of different speeds causes problems. (ie pc2100,
pc3200) Your motherboard must also support the speed of the memory module.
The Corsair website has an excellent tutoral on memory.

Jerryrock,
I was using 2 ddr 512 pc2100 sticks when the problem started.
pc 3200 is supposed to be backwards compatable. I talked to the
Crucial.com rep & asked that specific question.
 

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