PC is an HP xw4600
System has 4 slots for RAM, should be able to take up to 16 GB as shown in diagrams in the above manual. I'm trying to remove the existing 1 GB RAM in 2 slots and install 2 GB modules in each slot for a total of 8 GB.
The PC is used and works fine with 2 sticks of this RAM:
label on module: 1 GB 1Rx8 6400U-666-12-22
240 pin, unbuffered
PC2 6400 DDR2 -800 (400MHz @ CL=6, tRCD=6, tRP=6)
Note this is non-ECC RAM
Link to the RAM I bought and trying to install:
Hynix PC2-6400U-666-12 HYMP125U64CP8-S6 AB-C
label on module: 2 GB 2Rx8 PC2-6400U-666-12
I get an error of 5 red lights when I try to start the computer with the Hynix RAM, and that's supposed to mean a memory module problem for the HP xw4600. What am I missing here? These aren't the same type of RAM?
Edited by peterk312, 15 February 2014 - 08:02 PM.