Yes of course taking it to a repair shop will get it fixed but also a rather large bill yet if you are not bothered about pretty you can fix it for a couple of £'s if that
now i am assuming its the front switch rather than one on the power supply! dont mess with the mains side.
ok how many switches is there on the front panel just the power switch or is there a reset button simplest and cheapest fix if there is a reset button and the computer is a standard atx design is to swap the cables from the reset and power switches so swaping their functions around reset to turn on and power when it works to reset. now some computers have all the wires in one assembly so you cant do that easily or if you dont have a reset button then you need to look at the switch there is a couple of solutions either buy a new switch assembly designed for that computer or fit a new switch and connect the wires from the old switch to it. the wires from the switch should be very thin and go to the motherboard and the switch just be a very small pushbutton type in which case the voltage is low if they are thick electrical type wires going to the power supply as in old computers then dont mess.
So if its a new switch well the easiest to fit with the minimum of tools is of course a doorbell non illuminated of course and not a wireless one, as they have screw terminals rather than solder
it sure aint pretty but as long as its a moden computer it will work there may well be better solutions it depends on the case design of course you could just buy a new case and transplant everything across but thats more work a reasonable case would be £25-30 but that means your pc has to be a standard design
i cant see a shop fixing it for less than £80 then i think you will have been lucky but if its its some wierd design it will be far far more!
Your best bet is to unplug and remove the front panel and have a look some hp's have a design where the switch gets pushed off its mounting you may find something just needs reseating.
if you need any more help then post back here and i will reply an email may be good then can send pics if you have a digi cam its so much easier when you can see the design. so create a disposable email on the likes of hotmail rather than posting your real one on here i dont know medion computers but they will be fairly standard but have been doing IT support for over 15 years and working on all sorts of wierd and wonderfull designs so it wont be to hard
Andrew
February 2011