Plucky,
The power supply seems like a good place to start...Check the current power supply wattage and when purchasing something new, look for 350 watts or larger..I'm guessing the one you have is 250 watts or smaller.
Of course, it's always your choice as to whether a "fix" is in order or something "new" is the better option..
Hope this helps.
Grif
Our PC cannot power up but the modem, router and monitor are powered up. When the button is pressed, nothing happens - no lights, no fan, no noise except the clicking of the button. I have tried another power cord which did not help at all.
The motherboard was replaced recently. Could this be a PSU problem? I'm really sick of this computer we have had to fix it 2 times already this year. I personally just want to take out the hard drive and the CD I have in the DVD drive. It seems a waste to fix it again but I suppose whatever is cheaper is the way to go. Any advice please? Thank you.

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