AMD Athlon 64 (x2) Dual Core 3800+
1.99GHz, 2.00 GB RAM
NVidia Geforce 6600 GT
I need some diagnostic help. Here's the story so far:
I return home after a week or so and promptly turn on Guild Wars. Immediately I notice that the frame rate is holding steady at 30, whereas it was normally always at 60. I fiddled with the graphical settings and was able to increase FPS only by decreasing resolution. A red flag shot up based on previous experience with a computer abruptly reverting to lower resolutions (the card literally melted). It was time to run some hardware/driver tests, so I restarted the computer and then tried GW again and got a blue screen stating that "nv4_disp.dll" had failed. This is a system32 Nvidia file, so I uninstalled+reinstalled the video card drivers. Now GW will start without crashing but the FPS is still half of what it should be.
So far I've meticulously ruled out driver, hard drive, RAM, cable connection, dust, and heat problems.
Here are some facts that may or may not turn out to be relevant:
- About two weeks ago the computer crashed while playing Guild Wars for the first time, strongly resembling a brownout. I dismissed it as a unique event.
- The computer had been in use by housemates the whole time I was gone, but they claim to have changed nothing.
- All applications take unusually long to start and the computer itself is noticeable louder.
- A system restore to last month did nothing.
- Multiple virus scanners turned up nothing.
- I can play other, equally graphically-intense games like City of Heroes and Starcraft II Beta with absolutely no problem.
- This is the very first BSOD this computer has ever seen.
- Last Christmas I upgraded from a 16" to a 22" monitor.