2 Memory not working together

[AliasNick]

Hello,
I have an a740gm-m motherboard. When I put in an additional kvr667d2n5/2g memory card the computer won't boot.

It just lights up, but does not boot.

Any help woud be appriciated.

 

[geofelt]

You want documented ram compatibility. If you should ever have a problem, you want supported ram.
Otherwise, you risk a finger pointing battle between the ram and motherboard support sites, claiming "not my problem".
One place to check is your motherboards web site.
Look for the ram QVL list. It lists all of the ram kits that have been tested with that particular motherboard.
Sometimes the QVL list is not updated after the motherboard is released.
For more current info, go to a ram vendor's web site and access their ram selection configurator.
Enter your pc model info , and you will get a list of compatible ram kits.
While today's motherboards are more tolerant of different ram, it makes sense to buy ram that is known to work and is supported.

 

[ky_ecsusa]

Mostly, we recommend the customer to use the same part# of memories inside the system. Sometimes, different memories have different timing may cause this issue.