I finally solved the bluescreen crashes in my Windows 7 desktop. All along, I suspected my video "card," which was actually built-in video on my motherboard.
When I upgraded my desktop, I decided to make use of the Intel video built into the motherboard. After all, most new computers have built-in video and, in my case, game-playing is not a significant use for my computer.
So, I plugged my monitor’s HDMI cable into the motherboard’s HDMI connector. All went well for several months, although the video system was by far the weakest link when I ran the Windows Experience Index ( found via Control Panel > System and Secruity > System ).
The symptoms were somewhat unusual. Many mornings, I would move my mouse to wake up my computer, only to find that I was at a log-in screen. After logging in, Windows finished its boot process and informed me that it had recovered from an error and had restarted. There was a link for more info, but that told me little more than that the system had blue-screened.
I thought I would be able to figure out where the bluescreen was occurring by turning off the automatic reboot-on-error feature.
Unfortunately, since the problem turned out to be the video card, that didn’t help. The system would bluescreen, Windows would go to sleep, and upon awakening would not (or could not) restart the video card. As a result, I didn’t get to see the bluescreen to see which program was crashing.
Finally, one weekend day, the video driver crashed during the daytime. I was able to see the screen while it was still being displayed as a bluescreen (before the computer went to sleep) and could see the problem was the video driver program.
After searching a bit at NewEgg.com (where I buy most of my hardware), I ordered a
Gigabyte GT520 video card. This uses the NVidia 520 chipset and has 1GB of DDR3 video-RAM.
The new video card solved the problem. It’s not an expensive card, but it was what I wanted — and it does not have a fan to make noise!
Note that Windows Updates presented me with an even newer driver for the NVidia video chip. Unfortunately, I installed it, which killed the sound that was being sent through the video card and HDMI chip. A quick System Restore put me back the older driver that came with the card. All was well.
The almost-daily crash problem stopped! Yea!