Games keep crashing yet the rest of my system is fine

[dstreet]

i recently installed new ram and a 2 sata hdd's everything in the system runs fine exept for games i have rebuilt the system and the problems continues error tests for the memory and hdd's have shown no errors and the are no hardwhere conflicts do i need sp1 or 2 for sata to wrok properly?

 

[RealBlackStuff]

You probably never updated your powersupply as well. Unless that has around 430Watt or more, it may not be strong enough to handle the extra memory and SATA-disks.
Fill in your "User Profile", top left on any page, so we can see what your rig looks like.