My desktop (emachine T3624, dont laugh) has been running super slow lately, and i noticed thru task mgr. that it was running at 100%. So I decided to open it up, and take a look. Well everything was covered in thick dust, so I started cleaning. I removed the cpu heatsink because the fins were completely covered behind the fan. After cleaning it up, I put it back together, and now nothing! Yes, it powers up, the fans spin, and I get a green light on the mother board, but I also get a steady blinking red light with the code next to it "CR9F1", if that helps. There are no beep codes, and it runs till I unplug it, but the screen remains blank the entire time. Thanks in advance.
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