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Missing Operating System

post #1 of 69
Thread Starter 
I used ntune to overclock My 8500 GT memory clock and i set it too high and now when I boot up the system it says missing operating system i cannot even go into safe mode neither can boot from a Cd. Does anyone know how to reset the clock?
post #2 of 69
Clear the CMOS.
post #3 of 69
Thread Starter 
Quote:
Originally Posted by E-Peen View Post
Clear the CMOS.
How?
post #4 of 69
It depends on what motherboard you have, there's multiple methods. First read your motherboard manual, it'll always tell you how to clear your CMOS. Someone motherboards come with jumpers and some do not. If yours did not, the easiest way is to just hold a metal object such as a screwdriver to the CMOS for around 10 seconds.

That's what I have to do with my motherboard.
post #5 of 69
Remove the CMOS battery for ~2 minutes to let the settings clear, or short circuit the 'clear CMOS' jumper if your motherboard has it. Make sure power is disconnected before attempting either of these.

EDIT: Beat me to it E-Peen
post #6 of 69
Quote:
Originally Posted by LiFTed View Post
Remove the CMOS battery for ~2 minutes to let the settings clear, or short circuit the 'clear CMOS' jumper if your motherboard has it. Make sure power is disconnected before attempting either of these.

EDIT: Beat me to it E-Peen
Removing the battery also works, as stated here.
post #7 of 69
Quote:
Originally Posted by E-Peen View Post
Removing the battery also works, as stated here.
Random question: You can just hold a metal next to the battery and that works too? A couple years ago I had to reset the CMOS and when taking out the battery I nearly broke the dang plastic thing, which would've ruined the board.

Your first suggestion sounds much safer and simpler.
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post #8 of 69
Thread Starter 
It is not in the manual. Can u give me a thorough explaination on how to clear the CMOS,because I am only kid.
post #9 of 69
They wrote you some solutions above, read them at least -_-'
post #10 of 69
Quote:
Originally Posted by Daryll99 View Post
It is not in the manual. Can u give me a thorough explaination on how to clear the CMOS,because I am only kid.
It looks like a hearing aid battery on the lower side of the motherboard, take it out, which should be easy enough.
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