I have an old Dell 5150 PC from 2007 and i use it as a second pc,
It shutdowned suddely, and now it doesn't boot anymore, when i press the power button, it flashes again and again until i release the button.
pentium d 2.66 ghz cpu,
originally 512 MB ram but 3 years ago i upgraded it to 2 GB.
Original power supply died so i replaced it with another one.
The small battery for time (on the motherboard) is still the same.
Windows 7 but originally Windows XP.
I think the problem is the power supply because when the other one died, I it happened the same way.
Anyway i will get another one, but i need my data from it.