Computer won't turn on after installing new graphics card

[Ber Paz]

I upgraded my old graphics card which was a bad one. After putting in graphics card my computer won't turn on with or without the graphics card. When i try turn it on, nothing happens, almost as if i was trying to turn it on without the power supply plugged in. The graphics i upgraded to was an EVGA Geforce gtx 750 SC.

 

[Gee Bee]

absolutely nothing happens? No power led, fans turning etc ?

 

[Ber Paz]

absolutely nothing happens? No power led, fans turning etc ?

Nothing at all, no fans nothing

 

[Gee Bee]

well it was working prior to fitting the 2nd new card, so perhaps you have accidentally dislodged the power connector from the front panel connector header on motherboard. Or possible even the main atx power connector. I've done this several times throughout the years. Check it out

 

[Ber Paz]

doesn't seem to be the problem i tried reconnecting everything aswell, no luck

 

[Gee Bee]

ok, have you reset cmos. If not do so with PSU NOT connected to mains or switched on. If you don't a clear cmos jumper, remove cmos battery for several minutes and then re-insert battery.

 

[Ber Paz]

I don't have a jumper, I don't know too much about computers so i don't know ll this technical sheit

 

[Gee Bee]

Ok what is the motherboard exactly. Then I will attempt to show you how.

 

[Ber Paz]

Im not entirely sure as i bought the pc second hand i have pictures though.

 

[Ber Paz]

I also know where the cmos is

 

[Ber Paz]

Ok what is the motherboard exactly. Then I will attempt to show you how.

I just saw a green LED that i hadnt seen before

 

[Gee Bee]

The clear cmos jumper or cmos battery? If it's the jumper short the two pins for a few seconds, if the battery remove it for a bit longer with the PSU disconnected from mains.

 

[Ber Paz]

The clear cmos jumper or cmos battery? If it's the jumper short the two pins for a few seconds, if the battery remove it for a bit longer with the PSU disconnected from mains.

I know where both are, i disconnected the battery from the motherboard and has been disconnected for a couple minutes

 

[Gee Bee]

OK, that's long enough.

 

[Ber Paz]

nope hasnt seemed to work

 

[Gee Bee]

It;s gotta be PSU or mobo fault. I'm picking PSU because absolutely nothing happens when switched on. A very outside possibility is the power on switch( i've only ever seen this once). You try this as a very last attempt before looking at finding a psu. You should be able to trace this to the front panel header for switch, reset, power\hd led etc.. It is will have something like pwrsw next to it.

http://www.computerhope.com/jargon/s/systempanel.jpg

Try shorting the pwr and ground pin which has the same effect as the mechanical switch on case.

Thats about all i can suggest as of now.

 

[Ber Paz]

i'll probably take it to shop tomorrow, thanks heaps though

 

[Gee Bee]

OK, good luck and hope it don't cost too much.