My computer is totally dead as a result of an electrical surge (the computer was on and OK when I went to bed, I woke up in the middle of the night from thunder, it was totally dead in the morning–and the post office a block away lost its modem that same night).
What are the probabilities as to what components have malfunctioned (people mention power supply, graphics card, motherboard…). Can you check without sophisticated equipment? This is a several year old desktop PC with a used market value of maybe $125 on eBay. Is is worth attempting to repair?
If you’re lucky, it’s just the power supply.
Maybe even just the fuse (which may or may not be easy to replace).
New power supplies are $25 or so, so probably worth a shot…
Well, that’s bad.
I suppose you could have something as simple as a dead NVRAM battery, but it’s much more likely that your motherboard is fried, possibly from some peripheral cable (Ethernet, Modem, etc.).
I’d write it off, and take the hard drive out in the hope that it is undamaged.