Problem with starting the computer.
Problem with starting the computer.
I worked on my PC thoroughly today, disassembling everything and cleaning it with a low-powered air blower. I lightly dusted the remaining parts, used 99.9% isopropyl to remove the thermal paste, and then reapplied it using Mx6. After reassembly, it won’t power on at all. I’ve verified all cables are properly connected. When I power on the PSU, the motherboard LEDs flash off, but nothing else happens.
Basic fixes would involve: Clearing the CMOS (using both the header and shorting the battery for a minute) Reconnecting the RAM, then re-seating the GPU (if available) Attempt to operate with the fewest components and connections (remove all unnecessary PCIe cards and drives—including the boot drive—and unplug non-essential peripherals) If you have an alternative power supply, switch to it (even if it's underpowered, it might allow the system to boot) Take out the CPU and inspect for bent pins (on CPU or motherboard)
Avoid dismantling everything, focus on the case side and verify the connections first.
Ensure all connectors are completely snug, some designs require a tight fit and what seems like the limit is reached. This has happened multiple times—often more than twice—and recently it occurred again.