Hi! I have been having problems with my PC shutting down.
The machine's stats: Windows 7 Ultimate + Service Pack 1 (32-bit O/S); Board: BIOSTAR Group TA780G M2+(Bus Clock: 200 megahertz; BIOS: American Megatrends Inc. 080014 01/14/2009); PROCESSOR: 1.90 gigahertz AMD Athlon 64 X2 Dual Core 3600+; Installed RAM: 2 GB (Slot 'DIMM0' has 1024 MB, Slot 'DIMM1' has 1024 MB). If something else is needed, please let me know.
The issue: I have been having problems with the PC shutting down (crashing) randomly. The machine has a display on the front of the tower that shows CPU temperature as well as fan function. Sometimes after a crash, this display is black -- the display is shut off (no alarm sounds when the display is black). And then, a day or so later (it seems to require the PC being shut down overnight -- though this does not always mean that the display will come on the next day; and sometimes it is disabled for a day, or even two), when I turn the PC on the display comes on, and everything is fine. This morning when I turned the PC on, the display came on, but showed a CPU temperature of 20.0° C (which made me take note, since the room temperature was 27° C). And, simultaneously, an alarm has been sounding since (perhaps to warn that the cooling system has been disabled) -- neither of these things have ever happened before.
The data on the display has not changed, even though the PC has been running for a couple of hours, leading me to believe that the cooling system has indeed been disabled. (When I noticed that the display was not working, I removed the cover and placed a high-speed fan next to the PC to keep it cool -- I should mention that I cleaned all of the dust off of the fans and other components sometime ago, and everything is clean now.)
Recently, in an attempt to figure out what was wrong (running a series of scans under the direction of someone who should be qualified to assist with malware detection and removal showed the PC is theoretically malware free), I discovered that there may have been issues with two of the RAM (originally I had four installed -- two of them were 2 GB, and the other two were 1 GB -- and Memtest86 crashed when attempting to scan both 2 GB RAMs, so I removed them from the system; the two 1 GB RAMs scanned fine and without errors).
I can not figure out what has caused the cooling system to become disabled -- and frankly do not know where to start looking. The incessant alarm is driving me crazy!
Any thoughts and suggestions would be very deeply appreciated. Thank you for your time.
-- Daniel M. Burkus
Edited by dmburkus, 14 July 2017 - 09:04 PM.