Computer restarts randomly

[g2peee1]

Hey guys,
My computer keeps on restarting at random periods and I have no idea why it does that.
Sometimes it may restart while on the startup screen, while i execute something or while i look through the files on the computer.
Here are the things that I've tried to do:
1) Check the RAM with memtest. No errors.
2) Installed a temperature program to check if it's overheating. It had a decent temperature of about 34 degrees.
3) Reformatted the hard drive, but it still restarts.

Here are the computer specs:


Computer:
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
DirectX 4.09.00.0904 (DirectX 9.0c)
Motherboard:
CPU Type Intel Pentium 4, 3000 MHz (15 x 200)
Motherboard Name Intel Rapid City D865PERC (6 PCI, 1 AGP, 4 DIMM, Audio, LAN)
Motherboard Chipset Intel Springdale i865PE
System Memory 1024 MB (DDR SDRAM)
BIOS Type AMI (04/23/03)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter ATI Radeon 8500 (R200) (ATI All-in-Wonder Radeon 8500)
3D Accelerator ATI Radeon 8500 (R200)

Multimedia:
Audio Adapter Intel 82801EB ICH5 - AC'97 Audio Controller [A-2/A-3]

Storage:
IDE Controller Intel(R) 82801EB Ultra ATA Storage Controllers - 24D1
IDE Controller Intel(R) 82801EB Ultra ATA Storage Controllers - 24DB
Disk Drive WDC WD400BB-00DEA0 (37 GB, IDE)
Disk Drive SanDisk Cruzer USB Device (3 GB, USB)


--------[ DMI ]---------------------------------------------------------------------------------------------------------

[ BIOS ]

BIOS Properties:
Vendor Intel Corp.
Version RC86510A.86A.0017.P06.0304231535
Release Date 04/23/2003
Size 512 KB
Boot Devices Floppy Disk, Hard Disk, CD-ROM, ATAPI ZIP, LS-120
Capabilities Flash BIOS, Shadow BIOS, Selectable Boot, EDD, BBS
Supported Standards DMI, APM, ACPI, PnP
Expansion Capabilities PCI, AGP, USB

[ System ]

System Properties:
Universal Unique ID A5653F82-B98A11D7-A14C0010-83123456
Wake-Up Type Power Switch

[ Motherboard ]

Motherboard Properties:
Manufacturer Intel Corporation
Product D865PERC
Version AAC28180-402
Serial Number ABRC32939544


I deleted some of the specs because it went up to 150+ pages of info, and I don't think they're needed.
If you need any other information, please let me know.


Thanks,
Matt

 

[hvacdoc]

What about your power supply? Don't see any specs on it.

 

[g2peee1]

Is this what you're looking for? I found this in the BIOS.

Processor Zone Temperature: 36°C/ 98°F
System Zone 1 Temperature: 27°C/ 80°F
System Zone 2 Temperature: 27°C/80°F

The temperatures move up and down by one if that matters.

Here are the Voltages:
+1.5Vin 1.454V
Vccp 1.470V
+3.3Vin 3.017V
+5Vin 5.263V
+12Vin 12.125V

The brand is PowMax and output wattage is 400V.

 

[familyman1]

I would suspect that power supply. A failing power supply will cause random restarts. Just judging from the numbers you posted, the +5v looks like its pushing the tolerance of atx specs. Do you have another power supply you could throw in and see if problems persist?

 

[g2peee1]

I would suspect that power supply. A failing power supply will cause random restarts. Just judging from the numbers you posted, the +5v looks like its pushing the tolerance of atx specs. Do you have another power supply you could throw in and see if problems persist?

Oh well, I have a 250W power supply in another computer.
But I thought it'd be too weak.

I'm thinking of just buying a 430W-500W power supply.

 

[cjphalen]

hey, i have a 450 watt power supply that im selling for CHEAP. email me at conorphalen@gmail.com