Today I've planned to clean the insides of my CPU. After cleaning, I connect all of the components it needs to work like the mouse, keyboard and so on. I tried to turn it on and something went wrong it is asking for a boot up device and I don't know what to do. I tried restarting it but still no work. The last thing I've tried is to put my windows 7 disk and try to look if my hard disk is already corrupted. However, there's no drive to show. I also tried looking at my BIOS and resetting it to default but still no good.
Please help.
Please help.
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