Hi, Can't figure this one out. Swithching on the pc only results in the psu fan working...nothing else but, the power switch flashes as does the hdd activity light on the front of the case!!! however there is no sign of life within the pc apart from the psu fan. First thought was the psu but could the mobo be at fault??
Is enough power getting to the motherboard eg. is the CPU heatsink fan running? Are you sure the monitor is switched on? Silly question I know but it's not unknown for monitors to be inadvertantly switched off. I've known a failure to boot be caused by peripherals attached to the USB ports, try unplugging them before you start. Try reseating all the cards including RAM by physically removing & replacing them
Hmm, yes, reseat everything. Pull out all un-needed cables, such as: all USB(exept Mouse & keyboard) ect. and check all connections. Also, take out all un-needed PCI cards, if it boots, place cards in one-by-one, and then when it fails to boot, you'll know why.
thanks for advice all. Looks increasingly like a mobo problem. Replaced PSU to no avail, took out boards etc and the problem persists...PSU fires up,on/off light flashes and HDD light flashes!CPU fan does not spin, HDD quiet too?? Looks like a rebuild :-(