Computer Randomly Shut Down

I have a feeling I know what the problem is, but i'm not sure.

I've been having this problem ever since I bought an external drive. I bought the enclosure and the hard drive from Comp USA. Its a 200 gig Maxtor drive, in a comp usa brand enclosure.

It seems to me that randomly my computer will shut down only when the external is on. AFter searching on this board, I found Everest, and checked up on my cpu/mother board temp. All seemed fine(29 C/84 F for motherboard 49 C/120 F for my CPU).

Anybody have an idea on what could be the problem? Any help would be greatly appreciated. I'd consider myself an intermediate in my skills with a computer(i can trouble shoot usually..I've built a few computers before).

 

If you were afraid it is due to your power supply you are probably right. Use a USB powered hub and see if it helps. XP SP2 needs a patch to correctly report USB power issues: http://support.microsoft.com/default.aspx?scid=kb;en-us;922128&sd=rss&spid=3223

But the real solution is a larger power supply.

It is not 100% certain it is the power supply. Run Everest free and report back on the power supply rail voltages shown: http://www.majorgeeks.com/download4181.html

 

Sensor Properties:
Sensor Type ITE IT8705F (ISA 290h)
Motherboard Name Asus A7S333

Temperatures:
Motherboard 27 °C (81 °F)
CPU 44 °C (111 °F)
Seagate ST320410A 35 °C (95 °F)

Cooling Fans:
Chassis 4963 RPM
Power Supply 2192 RPM

Voltage Values:
CPU Core 1.76 V
+2.5 V 2.48 V
+3.3 V 3.36 V
+5 V 4.92 V
+12 V 12.16 V
+5 V Standby 5.05 V
Debug Info F FF 88 4D
Debug Info T 27 44 117
Debug Info V 6E 9B 69 B7 BE 66 36 (F7)


I believe thats what you're talking about. The case I have the external in is powered.

It is getting quite annoying because sometimes it runs completely fine for days without a problem, then there will suddenly be problems.

 

When it does this, by any chance is the power light still lit on the front panel of the computer?

 

nope. It is completely shut off, as if I would go through the normal shutdown routine.

 

Anything reported in the event viewer?

Roger: