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This question has been answered by sugarbear18

I have a Dell XPS 8700 that has been shutting down suddenly. I cleared all the temporary files and cache and tried to reinstall Windows 7 Pro 64 bit OS but the re-install failed before it completed. An error window came up saying "The file directory X: is corrupt and unreadable. Please run the Chkdsk utility". I clicked on the "Okay" tab for this error window but the window would not go away no matter how many times I clicked on it.

Behind the error window it says on the bottom of the screen that it is re-installing my old operating system. However, it seemed like it was not able to reinstall the old OS as long as this error window stays on the screen. I waited 6 hours and it still would not re-install the old version (progress bars moving endlessly but never finishes install) then I finally forced a shutdown. When I started up the computer again the screen was completely black and a 5 beep error code beeps.

Now, I cannot even start my computer in safe mode or get any image at all on the screen when I power it up. The monitor says it is not getting any signal from the computer. I checked the monitor cable connections and they are secure.

According to the Dell beep codes 5 beeps means a bad CMOS battery.So I changed the CMOS battery, checked to make sure that ALL cable connections were secure, and unplugged the AC cord for a few minutes but I am still unable to get any image at all on my screen. It will not boot up at all.

All the fans are working the power lights are on and the computer seems to be running but I just cannot get get ANY image at all on my screen. However, the computer is still shutting down suddenly. I was thinking it may be a defective main board or hard drive, but I am not sure. The fact that the OS re-install failed may have something to do with why I am not getting any image on the screen but I was having problems with sudden shut downs long before I tried the re-install. It could be a combination of these two things that is causing the black screen and failure to boot.

How can I fix this problem?

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