Random rebooting, without know the history of your PC all I can do is give you a list of things to try and look for. The first thing I would do is check the basics, if that turns up nothing then the only option left is to removing variables one at a time.
Obvious things to look for:
- Physically remove and clean the processor heat sink. Make sure the area directly underneath the CPU fan is clean of dust; you have to remove it usually to make sure. When you reattach the heatsink take the opportunity to clean off the old and reapply new thermal grease. Use sparingly to ensure excess material doesn?t get on the CPU pins or the motherboard.
- If you have a video card with its own heatsink and/or fan make sure it is free of dust. Make sure the fan runs freely and forcefully. It usually takes a can of compressed air to clean the dust underneath the fan, in some cases it requires disassembly.
- Make sure all connectors are snugly plugged into their sockets.
- Make sure all cooling fans, especially the power supply are running smoothly and forcefully.
- Vacuum out case air vents and blow out dust from all secondary heatsinks and around the memory modules.
- If your computer is plugged into a power strip or UPS try plugging it directly into a tested wall socket.
- With the computer running try wiggling where the power cord plugs into the PC and the wall socket.
If nothing turns up the next step is to make this computer as basic as possible. Disconnect any secondary drives, all USB devices, hubs, ports, printers anything you can remove and still have the PC boot. Don?t assume something couldn?t possibly cause this, making assumptions works against you. Run the machine in the basic mode and see if the problem persists. If it doesn?t don?t assume its one of the things you removed, replace the items one by one remembering it could be a power problem that only manifests itself when lots of stuff is plugged in.
If the problem persists try these one at a time:
- Typically your system BIOS will have a safe or factory reset mode, set it to that making note of the setting you had originally.
- Try removing the hard drive and boot via a CD (Windows install or a diagnostic disk will do).
- If you have a plug in video card try using the motherboards built-in video or another know good video card.
- Test or preferably replace your power supply with a known good supply.
- Try new memory.
- At this point we?re probably left with just the processor and motherboard which means unless you have spares around you?ll need to start considering if its time to upgrade to a new motherboard and/or processor.
Also if you haven?t done so already you should immediately backup (and test) your important files stored on your computer. The random shut downs are dramatically increasing the chance your hard drive will suffer damage or data corruption.
I hope this helps but let us know if you have any other questions and please don?t forget to rate this post.
Mar 31, 2007 |
VIA C3, 1 GHz (5na00m11q-bwt6a) Processor