Computer Broked :(

[mahaya]

goodluck, hope the problem will be solved

[clocker]

Rule number one in hardware maintenance diagnostics - check the most obvious components first.

Fixed.

Lynx is absolutely correct though- if the PC stops powering up, it's most likely the PSU, no matter if the fans spin or LEDs light up.
Manufacturers cut every corner they can and the PSU is the one component that will screw you most often.

If you're lucky, when it fails it doesn't take anything with it but approximately half the time, it does.
@Morque...you really should have tried to beg/borrow a PSU to see if that alone solves your problem- what will you do if it doesn't?
Anyway, good luck.


BTW...the first step in a diagnosis should be a visual inspection.
Specifically, the capacitors scattered all over the motherboard.
There was an industry wide plague of substandard caps several years ago that has now come home to roost- any sign of bulging and/or leaking and you need a new mobo.
Rarely do I see cabling that has just worked it's way loose (SATA cables would be the most likely since they suck big time but even they are usually dislodged when fumbling around the case interior) and most of the mis-seated cards are from rough handling during transport to the shop.