I got SpeedFan, but I'm not sure what the readings mean. Here's a screenshot (ETA: that's the old screenshot, before I configured it). I will do another post a bit later (probably in the Windows OS section) with my minidumps and specs and a full explanation of my problem, but for now I'm just wondering if anything useful can be learned from that screenshot (ETA: Nope, nothing )? My motherboard: MS-7093 My CPU: AMD Athlon 64 3000+ My new graphics card: GeForce 7300 GS One stick of RAM, 512MB. My Power Supply: Okia-450ATX(450W Max) +3.3V : 28A +5V : 50A +12V : 18A -12V : 1.0A -5V : 0.8A +5VSB : 2.5A I think the PSU came with the case, in a barebones kit or something (the computer was a gift from my father). My problems: Often have BSODs or crashes that garble my screen, but only while playing Sims2 and World of Warcraft. Had same crashing even before I bought the new graphics card (had just the onboard one). New card has not helped the crashing. Stop errors 50 and EA (and I think D1?) are most common; sometimes it names a file that is for whichever graphics card driver I am using at the time (at first the onboard one, now the new one), but why would I have the same problem with both graphics cards? And I have always kept my drivers updated. Also: Often after a crash when I restart it won't finish booting. It looks like it is starting to boot, but the line of text that counts through the memory, checking it, never appears and the boot process just hangs there. The only way I can get it to boot is to: 1. Turn off computer 2. Unplug computer 3. Push power button while computer is unplugged (obviously doesn't do anything) 4. Plug back in and turn on. Now it boots! Someone told me to try that and it always works. So that's why I suspect my power supply is related to the problem.