hi guys... hope there is somebody out there that can help me: my Blue Screen msg is as follows "IRQL_NOT_LESS_OR_EQUAL" I have done a bit of digging and it seems that there is no hard-and-fast rule regarding this problem, but maybe the experts can shed some light. Platform is as follows (New installation): Intel Westchester 965WH Board 2.8 Ghz DualCore Pentium D 2 * 1GB Patriot DDR 800Mhz (running dual channel) On-Board x3000 graphics On-Board Sigmatel Audio On-Board NIC Firewire disabled BIOS Updated Windows XP with latest mobo drivers. My initial guess was RAM, as it only seems to happen while gaming, and not "normal" operations. 1st time was playing C&C Zero Hour - the machine would shutdown (or go to BS with above-mentioned msg) and I'd get a 3-Beep error msg, which supposedly means crappy RAM. Gonna try and swop RAM tonight - Using 512MB GEIL on another box. Also I noticed that the ICH is running quite hot, sometimes hitting 90 degrees celsius, which seems a bit excessive. CPU with stock cooling hovers around 50-60. According to Intel Desktop Diagnostics, the ICH is within limits, but still seems a bit hot to me. North and Southbridge using stock heatsinks. So now I'm not too sure if it's RAM or overheating or both (or maybe none of the above?!) i suppose I will be able to eliminate the RAM option once I swop the modules. any ideas out there? I haven't included dumps as i'm not sure where to find them....this is the first time i've run into problems like this!