XP runs fine with 2 Gig of DDR3 mem installed. MoBo is DX38BT, cpu is Cr2D E8400 3GHz. When i add 2nd set of CD3X1024-1800C7D mem sticks for a total of 4 gig system bios sees it, but XP hangs on boot up at: "multi(0)disk(0)rdisk(0)partition(1)\windows\system32\drivers\Mup.sys" boot up hangs at this line and will not proceed. Boot up into Safe Mode will work but system will hang if trying to boot up normal at that line listed above. Any suggestions or answers as to why system will not boot to normal mode with the 4 gig of DDR3 mem installed. Take the two sticks out leaving 2 gig of exact same ram and system boots fine with out any problems. -- Frank
