This problem started in September 2005.
When I first boot up my PC in the morning, it crashes after a few minutes - 5 or 10 minutes. Sometimes the display would just freeze, sometimes there would be a blue screen fatal exception OE, usually in VXD VMM. The only option then would be to press the reset button and go through Scandisk. After this the PC would be OK for the rest of the day.
With help from the HJT team I tried all sorts of scans for viruses and malware but turned up nothing.
Then, in November the PC crashed as usual, but on pressing reset it would not boot up at all - a whole lot of files that were needed to run windows were listed as missing. I did some investigation from the command prompt and discovered that the Windows directory and all its sub-directories had been wiped out all except for 3 files.
After a long time (about 2 weeks!) reinstalling Windows on an old HDD and retrieving stuff off my crashed drive, I thought I would try hardware troubleshooting. I tuned everything up using the PC Pitstop website. I replaced both the primary & secondary IDE cables. I downloaded Motherboard Monitor 5 to check the CPU temperature and found it was running at about 107 degrees F, higher than the manufacturer's recommendation of 95F. I cleaned out the PC with compressed air, installed a case exhaust fan, re-bedded the heat sink on new thermal paste, refitted my HDDs in 5.25" bays to give more airspace around them, and put a vent in the front 5.25" bay. It has made no difference. In fact, as I write this the CPU is running at 109F. The PC still crashes after the first boot-up of the day, but after a little longer now, say 15-20 minutes.
Is temperature likely to be the cause of the problem? If it is temperature, why would the PC crash after a boot-up from cold but not when restarted after a few minute's shutdown? Could the CPU have been damaged?
The other suspect is the graphics card, but I haven't checked this out yet.
Here's the spec for the PC:
Jetway V266A motherboard.
AMD Athlon 1.33 GHz CPU.
512Mb PC2100 DDR SDRAM (new).
Primary master HDD: Maxtor Diamond Max 7200 80GB.
Primary slave HDD: Maxtor Diamond Max 7200 120GB (new).
NVidia GeForce2 MX/MX400 Graphics card, with relatively new fan.
Creative SoundBlaster Live! sound card.
Connected to Broadband via D-Link router modem.
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Edited by Futurelife, 07 December 2005 - 04:49 AM.