Black screen after cleaning and reapplying thermal paste.
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Hello,[br]
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I opened up my out of warranty Predator Helios 300 to clean out the fans of built up dust and to re-apply thermal paste to the CPU and GPU. I made sure to de-static my hands before and after disassembly and reassembly and I made sure I was grounded to prevent shock risk. After re-assembling the PC and making sure all of the parts were connected in their proper places and sockets, I attempted to turn on the PC. The PC turns on the fans and the keyboard light, but the screen is black. It won't even allow me to enter the BIOS menu. Can anybody help me?