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06-11-2010 05:34 PM
About half of the time the system boots up and runs normally. The rest of the time when you press the power button it gets to the blue "HP" screen and stops. When this occurs I notice that the lights on the keyboard for "num & cap" locks will not come on, so this tells me that the keyboard is not getting power. Once this happens I can turn the power off and on many times but cannot get it to boot. But I have found that if I unplug the power cord wait a couple of seconds and plug it back in then the system boots up and runs normally. Could this be a power supply issue? Any ideas?
06-11-2010 06:07 PM
Try this procedure:
Unplug the PC and open it up. Clean out all the dust. Carefully remove and replace all the cables going to the motherboard one at a time. Do the same for the memory dimms and the video and sound cards if you have any. Plug your PC back in a give it a go.
06-11-2010 07:20 PM
I did clean it out and reset all cables and memory thinking that something may have come loose. After doing this I thought I fixed it but after a few reboots it locked up again. Anything else I can try?
06-12-2010 01:03 AM
Hmmm. i don't want to sound to dumb but how do you run diagnostics in the Bios? I know how to get into the Bios and change the settings but not how to run a diagnostics.
06-12-2010 09:27 AM
Once in the bios, look for an advanced settings tab. Each tab is scrollable. Many PCs have bios diagnostics but perhaps your PC is the exception if it doesn't.