Hello so today my pc was overheating so I decided to clean some dust out of it I used a bit of tissue and just wiped the dust out gently I didn't hit anything hard or anything. When I got to turn my pc on you hear it boot up with the fans for 10 seconds shuts down then boots again but this time for longer but I have no idea what its doing because my display is not working at all and none of my usb's are working mouse isn't lighting up, the motherboard is lit up all the fans are working and you can open and close the disk tray any help or advice would be much appreciated.
sorry if I posted this in the wrong place not sure where to post it .
Remove all memory modules, the graphics card, HDDs cables, leave only CPU and CPU fan installed. It would be helpful to attach a case speaker at this point and check the error beeps.
Then install one RAM stick, graphics card, DVD drive, keyboard, mouse and test.