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System is not workin properly

Sometimes monitor light blinks but screen shows nothing.this system boots sometimes and sometimes it stops in the middle of installation of fedora7 or suse10.3 just like when pc hangs and after that monitor doesnt anything but red light on the tower keeps blinking,i checked my mobo from service center and they told there is no problem with it,i got my RAM replaced.Is there a problem with my graphics cardor power supply

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You might try this. Shut down the computer, disconnect power cords, disconnect everything at the back of the computer, mouse, key board, etc. Open the case, ground yourself by touching an unpainted area of the case and remove the power connectors to ALL optic drives and floppy drive if you have one. (Of course do not disconnect the hdd.)
Reconnect mouse, keyboard, etc., and power cords to wall outlet.
See if it will post now. If it does I say you have a faulty power supply.
I was given a computer which was doa. It would not post, after I tried the above routine it posted then booted to windows.
I replaced the psu and now the computer works fine.
Hope this helps!

Blunderbuster

Posted on Feb 06, 2009

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