Memory compatibility

[jotaerre]

I have a pack of 2x 2gb G. Skill "F28000CL5D-4GBPQ" and today I have a gift pack 2x2gb Kingston HyperX "KHX8500D2k2" and when I put together the system is slow. What could be the problem?

TheMotherboard is Gigabyte GA-P35-DS3L.

Putting 3 modules, with any combination, whether perfectly.

 

[Chyron]

Did you check your timings when you installed them? It may have auto adjusted them to a higher cas latency. You may also need to up the voltage slightly to accomadate the extra dimm (s). Hope this helps.

** just checked on the timings/voltage of the two and you may have to slow the ram down a bit to use more then one set, theyre running very high voltages stock so upping the voltage any further may be dangerous. I would suggest slowing down their speeds slightly and trying to stabiize them with 2.1 volts. It kinda seems counter intuitive to slow them down to speed them up, but given the voltage they are already using putting it up any further may be unwise.