Computer shutting off without warning?

Question

So lately my computer has had some real issues with shutting down without warning, it's done it around 5 times today and its absolutely infuriating, its a desktop computer so i cant get a cooling pad if it's a heat issue, i checked the fans and they are intact and the tower itself is slightly warm but not on fire like its a normal temperature. i dont have a virus, i've scanned several times, my computer is also relatively new (my dad built it last year) so..idk what the problem is. my specs are;
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.110408-1631)
Language: English (Regional Setting: English)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 12/30/09 19:52:33 Ver: 08.00.15
Processor: Intel(R) Core(TM) i7 CPU 975 @ 3.33GHz (8 CPUs), ~3.3GHz
Memory: 6144MB RAM
Available OS Memory: 6134MB RAM
Page File: 2628MB used, 9638MB available

Answer 1

Have you updated or installed any drivers/software lately?

Answer 2

Possible issues :

1) Wire soot.

2) Broken Wire.

3) Cables are not properly plugged.

4) Cooling fan stuck sometimes.



My suggestions are :

1) Try to Unplug all your cables and Plug it back.

2) Ensure the wires are not broken and touch to other wires.



P/S: I had this issue years ago, and it was because of the cables were not plugged properly. I don't know if you have the same issue like I did.

Answer 3

The power supply may be dropping the +5 volt below minimum required.level. Check the power supply. This is the most likely culprit. The voltage wraps around the motherboard in a circuit named Power Good. A component on the circuit (capacitor likely) could be breaking down. Your problem is more than likely one of these two components.. Good Luck

Answer 4

Could be over heating there might be dust in the heart sink or something so that instead of blowing the heat off the cpu its just blowing dust around

Answer 5

Possibly a short somewhere maybe on the power supply or the motherboard. Maybe some new hardware isn't connected properly. If you recently installed new hardware, try reconnected it.

Answer 6

Just because you have scanned does not mean you dont have anything. Probably a command shutting off your computer during a certain time period just wipe your drive.