This problem started after turned off the system from the power switch in the back, i was in an unexpected rush.... I started up the system and got a boot error saying "something about the CPU being changed", never did that..... after 2 failed startups the bios finally let me choose last known good configuration, and after that it worked. However, when playing Garry's Mod "a half life 2 mod" 20 min into the game my computer would suddenly BSOD and shut down. The error message left a BC code error, and researching i found that it had to do with the bios, so I updated it to the latest, and still get crashes, however the error code info changed, same when i updated Chipset drivers.... ive run Memtest86+ and ram tested ok. Idk if im getting closer to the fix or making it worse, but ill provide the info below and the dmp files, hopefully someone can solve this annoyance. This is the BC error info: Problem signature: Problem Event Name: BlueScreen OS Version: 6.0.6000.2.0.0.256.6 Locale ID: 1033 Additional information about the problem: BCCode: 50 BCP1: 898A5858 BCP2: 00000001 BCP3: 825DC737 BCP4: 00000000 OS Version: 6_0_6000 Service Pack: 0_0 Product: 256_1 Files that help describe the problem: C:\Windows\Minidump\Mini020508-04.dmp C:\Users\Drew\AppData\Local\Temp\WER-52728-0.sysdata.xml C:\Users\Drew\AppData\Local\Temp\WEREE63.tmp.version.txt The DMP files are too large to post so ill put them in a zip file.