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#1
BSOD on Shutdown
I have a situation which I'm not sure I should be overly concerned about, but which also may be an indication of a more serious problem.
About 2/3 of the time, when I shut down my system, everything is normal. But about 1/3 of the time, it is abnormal. And the sequence goes like this:
1. I click SHUTDOWN, and I get the usual messages about Windows is shutting down. The screen of the monitor goes black, just as it does in a normal shutdown.
2. However, instead of the computer shutting down, as it normally does, it keeps running (that is, the power light remains lit)
3. After about 30 seconds or so, I get a BSOD screen (picture of it attached).
4. At this point, one of two things happens. Either the computer reboots after several seconds (reboot appears to be normal in every way), OR, nothing happens. The message just remains on the screen, and the only way to shutdown is to turn off the power.
5. Whether the system reboots itself, or I turn off the power, the next boot appears to be normal in every respect. And if I then click shutdown again, the shutdown is normal.
6. Nothing is written to the Minidump folder after one of these events.
From what I have read, a Machine Check Exception message NORMALLY points to a hardware problem. This is a new machine, and the only hardware I have added are a PCIe Parallel port card, and an Iomega USB external drive. However, both these items appear to be working normally, and this behavior was present BEFORE I added either of them, so my assumption is that they are NOT the cause. In addition, this ONLY happens (at least so far) at shutdown. I have not experienced ANY BSOD at any other time, and the computer appears to be working normally in every other respect. The only other anomoly I have had was a temporary blackout of the monitor screen. This would happen several times a day, and each would last from 3 to 5 seconds. When the screen would return, everything would be normal, and, in fact, I found that if I were typing when the blackout occurred, and kept typing, all of the typing would be present--that is, that the material I typed DURING the screen blackout was present. It was if someone had simply turned the monitor off and back on. At the time, I had the monitor connected with a Display Port cable. I changed the cable to a DVI cable, and have not experienced that problem since changing the cable. So I assume that there was something in either the Display Port connection, or the cable itself that was causing that problem.
Any ideas would be welcome. And I'll be glad to provide any additional information that might be helpful in figuring out what is going on.