Lost power to Video, KB and Mouse

[DarreninIllinois]

I've lost power to my Monitor, Optical Mouse and Keyboard. Any idea what might have caused it or how I might be able to resolve?

 

[StraightPipe]

how do you know the mouse/Kb dont work without the monitor?

if you have another monitor available does it work?

tell me more about the situation

 

[DarreninIllinois]

Thanks for the reply. I had almost given up!!! I tried plugging in a spare monitor with the same results. Tried another video card as well. The KB lights for caps on, num lock and scroll lock didn't come on and neither did the light on the bottom of the optical mouse. I don't know whether to try replacing the motherboard or power supply next, or if I'm way off track... Any suggestions???

 

[beverage]

assuming your computer is booting, but you're just not getting any (or at least the ones you listed) I/O devices to work, I'd think your power supply is fine. If it boots, you must be getting power to the motherboard, if you're getting power to the motherboard, the Power Supply is working...the problem then--it would seem to me--is why isn't your motherboard getting power to your vid/PS2(usb) ports.

 

[DarreninIllinois]

I tried clearing the CMOS and that looks to have corrected everything. Not sure how or why, but I'm up and running now... Thanks for the reply. Great forum for help...