I have been having trouble with my Compaq Desktop lately. I can start it up normally and have it running for around 30 minutes and then it just shuts down. I have cleaned it thoroughly inside. I must admit, it was dusty.
After the clean it still runs for about the same amount of time.
I have taken out the Memory Cards and the Graphics Card and cleaned their sockets and also the connecting edges, brass contacts. This has made no difference.
I have disconnected all my hard drives except the main O/S one, also the DVD roms.
After they were disconnected the computer actually ran for about 40 minutes before shutting itself down again.
My Graphics Card is roughly two years old.
Could it be my power supply is overheating and causing the problem, the CPU or even the Motherboard itself.
I have only the basic equipment at my home so I cannot do any fancy testing of these components myself.
I have only got the fan on the CPU and one in the power supply, do I need more fans to help keep things cool or what?
Any help is appreciated.