I am new to the forum but I have seen lots of great help to others through this board so I thought I would give it a try after much hair pulling. I have switched memory sticks to alternate slots. I upgraded to a 450w power supply. I have cleaned everything. I bought a new HD and started with a clean windows install and I am still getting random PC restarts. I also ran two different memory tests and both passed with zero errors. My usual event log descriptions are these: 1. The bugcheck was: 0x1000008e (0xc0000005, 0xbf83634b, 0xb8ed4bfc, 0x00000000) 2. The bugcheck was: 0x10000050 (0x8d02e6a7, 0x00000000, 0xb890558e, 0x00000000). 3.The bugcheck was: 0x00000024 (0x001902fe, 0xb9a25e54, 0xb9a25b50, 0xf773a84f). Here's my last 4 .dmp files... Thanks for any help!