Having problems with your Compaq PC Desktops ?

My computer turns itself on and off. I cannot

\015 My computer turns itself on and off. I cannot check for any virus or do a restore because it does not stay on that long. I have also tried another power strip. No difference. compaq presario s6300nx\015

Answers :

First,, have you dusted it out? Heat is a terrible enemy of PC's and dust is the owens corning insulation of PC's it holds the heat right in.
\015\012If you have dusted out the PC, have tried to repeatedly strike the f8 key during boot, this will bring up "safe mode" if it will boot into safe mode it is likely a virus. I recommend going to AVAST.com and getting their free product, select all scannable items at the most thorough level and the scan at boot option. this usually clears up most things.
\015\012If F8 will not work then it could be a power supply issue, I am skipping the heat sink because you say it does not stay on long enough to heat up. Purchase a power supply tester or take it to your local PC shop to have it diagnosed.
\015\012You can also try going to Microsoft.com and getting their memory tester, this will put your RAM through its paces and insure it is working properly. All RAM failing is usually alerted by an odd series of "BEEP"s so this is not likely, but something you can test.
\015\012Lastly if the power supply and RAM are good, it may be the Hard Drive, ths does not seem likely to me, but if all other avenues are exhausted I would look there next.
\015\012If you require further assistance get back to me, I CAN help with this problem.
Firstly, make sure that your processor fan is rotating without any resistance. If it isnt cooling down the processor efficiently it will turn pc off. #when you say youve changed power strip..if you leave on/off switch on pc front disconnected from motherboard and pc remains off,then you have a faulty on/off switch. Other than that, could be a faulty power supply with ripple on your supply voltages causing interrupts to the bios and rebooting..Depends whether problem starts after computer is iniatially switched on by you where in that case the power supply could be a valid reason. If the computer switches itself on without touching the on/off button initially after the mains is connected to the PC then the power button is a more likely cause of the fault.
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