Computer randomly rebooting and freezing up

So my computer has been randomly freezing and rebooting the last few weeks. I figured it might have been a problem with Windows or a program I had installed, so I performed a clean install yesterday. Much to my chagrin, it continues to happen.

It happens a few times a day. When I first boot up the computer in the morning, I can usually go a few hours before it happens. Once it does, I can go a few more hours before it happens again.

So I figure that it is some sort of hardware issue. Would not be surprising considering I've had this pc since March 2005.

I ran 10 passes of memtest+ and after a few hours, no errors were found. Maybe I need to let it run overnight? I also downloaded SpeedFan and then noticed that my CPU temp is running in the lower 60s and that the core temp is in the high 50s. There is a little flame symbol next to the temp readings, which indicate they are running too hot.

Could overheating be the issue? Are those SpeedFan temps really accurate? Or should I run further diagnostics on my hard drive and memory?

I will post specs in the next reply.

 

Operating System Microsoft Windows XP Home Edition
OS Service Pack Service Pack 3
DirectX 4.09.00.0904 (DirectX 9.0c)

Motherboard:
CPU Type AMD Athlon 64, 2400 MHz (12 x 200)
Motherboard Name Asus K8S-LA (3 PCI, 1 AGP, 2 DDR DIMM, Audio, Video, LAN, IEEE-1394)
Motherboard Chipset SiS 760GX, AMD Hammer
System Memory 896 MB (DDR SDRAM)
BIOS Type Award (01/10/05)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter SiS 330 Mirage Integrated
3D Accelerator SiS 330 Mirage Integrated

Multimedia:
Audio Adapter SiS 7012 Audio Device

Storage:
IDE Controller SiS PCI IDE Controller
IDE Controller Standard Dual Channel PCI IDE Controller
Disk Drive ST3160021A (160 GB, 7200 RPM, Ultra-ATA/100)
Disk Drive Generic USB SD Reader USB Device
Disk Drive Generic USB CF Reader USB Device
Disk Drive Generic USB SM Reader USB Device
Disk Drive Generic USB MS Reader USB Device
Optical Drive AOPEN CRW5232/AAO (52x/32x/52x CD-RW)
SMART Hard Disks Status OK

Partitions:
C: (NTFS) 152617 MB (143877 MB free)

Input:
Keyboard HID Keyboard Device
Keyboard HID Keyboard Device
Mouse HID-compliant mouse

Network:
Network Adapter SiS 900-Based PCI Fast Ethernet Adapter

Peripherals:
Printer Microsoft XPS Document Writer
USB1 Controller SiS 7001 PCI-USB Open Host Controller
USB1 Controller SiS 7001 PCI-USB Open Host Controller
USB1 Controller SiS 7001 PCI-USB Open Host Controller
USB2 Controller SiS 7002 USB 2.0 Enhanced Host Controller
USB Device USB Composite Device
USB Device USB Composite Device
USB Device USB Human Interface Device
USB Device USB Human Interface Device
USB Device USB Human Interface Device
USB Device USB Human Interface Device
USB Device USB Mass Storage Device

 

It seems you have identified the issue and it is indeed CPU overheating and needs to "explored". Try running HWMonitor 1.1.6 while your doing everyday stuff. It will generate "min", "max" & avg and will give you a great basis.

60C kills things for older CPUs

 

Use a can of air if this is a tower and blow out all your dust or lint inside, which can hinder cooling also.