Hi, I've been having random crashes on my computer for quite awhile now (several months at least). Recently the crashes have become more frequent and are now happening at least once a day. Many times after a crash, the computer crashes up to three times again during start-up before finally starting up properly. The crashes are seemingly random and can happen during gaming, browsing, watching videos or simply while the computer is idle (or at least while I'm not actively using it). As you can imagine this is seriously hampering the usability of this computer. I have checked that there is no over-heating. I have tested my RAM with memtest86 but found no errors. I tested my HDD with chkdsk and again found no errors. I checked and updated my drivers and fiddled with the BIOS power save settings, to no avail. When I checked the volts on my PSU, I ran into something interesting. Speedfan reported the 12V rail putting out only 9,8V, Everest had it at under 5V(?!) but the reading in BIOS was 11,8V. So I'm guessing this is just a case of Speedfan and Everest misreporting, as I hear they are wont to do. I am at end of my expertise here. I can only guess that it might be related to my HDD starting it's dying knell or perharps my PSU being underpowered. I'd like to know whether any of you with more know-how would have any insights before I try to secure another PSU and a new HDD. SYSTEM SPECS CPU: AMD Athlon II X4 640 RAM: 2 x 2.0GB Dual-Channel DDR3 RAM @ 666MHz GPU: NVIDIA GeForce GTX 460 1GB PSU: Corsair 550VX (550W) OS: Windows 7 Ultimate 64-bit I have attached my latest minidumps here but there is a whole heap of the more. Thank you for any tips and insight you might have in this matter.