Having problems with your HP Compaq Presario F730US Notebook ?

Compaq Presario F700 keeps turning on and off

\015 Recently, every time I turn my laptop on it turns off after a few seconds, then turns itself on and repeats the process until I turn it off myself. It's a compaq presario F700, and I'm guess this is some sort of over-heating problem. I'm not able to run a virus scan or anything like that because the computer doesn't even load and the screen doesn't even light up before it shuts itself off, but I'm pretty sure it's not a virus. I'm thinking I need to clean out the fan or something, but I'm not quite sure how to access it (I don't want to unintentionally do more damage). Anyone else had this problem? Ideas on fixing it?\015

Answers :

At this point I assume you've tried to go into SAFE mode, and into BIOS with no luck. You're right about the overheating but I think the damage is done. If the unit will no longer stay on in any mode or condition then heat has ruined something. First easiest part to check is memory. The check the CPU (most laptops still have a plug in CPU). If neither of these are suspect then take everything off the motherboard, including the screen (I use and external monitor). If the problem still exists then it's time to use a scope.
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