Working on a friend's computer and am running into an unknown issue. Hoping someone on here might have an idea. The cause? He attempted to insert a flash drive into a broken USB port which shorted out the system (assumed) and threw sparks out of the front USB port it had been plugged into.
Upon attempting to turn on the system it won't do anything at all. It's a Dell Dimension E510.
Replaced the factory power supply but upon pushing the On/Off front panel button, a yellow LED on the switch assembly only lazily blinks once every 4-5 seconds as long as the button is pushed in. No fans running, but the light on the MB (green) does light up as well as the light on the new power supply.
My next step is to remove all the components , disk drives, hard drives, graphics card, to see if there is any reaction from the PSU. Then replace the power lines back to the components and try memory sticks one at a time, after that reset CMS battery.
Lastly, replace the switch itself with a (hopefully) Dell replacement part.
Any other suggestions or troubleshooting questions?
I'm open for ideas here. The system is well out of warranty so I'm trying to save him as much as I can.