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Computer won't turn on after installing new graphics card

Tags:
  • Computers
  • Graphics Cards
  • Graphics
Last response: in Graphics & Displays
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March 14, 2014 12:51:56 AM

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.

More about : computer turn installing graphics card

a b U Graphics card
March 14, 2014 1:10:32 AM

absolutely nothing happens? No power led, fans turning etc ?
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March 14, 2014 1:18:48 AM

Gee Bee said:
absolutely nothing happens? No power led, fans turning etc ?


Nothing at all, no fans nothing
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a b U Graphics card
March 14, 2014 1:25:36 AM

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
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March 14, 2014 1:32:10 AM

doesn't seem to be the problem i tried reconnecting everything aswell, no luck
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a b U Graphics card
March 14, 2014 1:42:35 AM

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.
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March 14, 2014 4:53:48 AM

I don't have a jumper, I don't know too much about computers so i don't know ll this technical sheit
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a b U Graphics card
March 14, 2014 5:00:23 AM

Ok what is the motherboard exactly. Then I will attempt to show you how.
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March 14, 2014 5:17:05 AM

Im not entirely sure as i bought the pc second hand i have pictures though.
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March 14, 2014 5:19:00 AM

I also know where the cmos is
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March 14, 2014 5:24:53 AM

Gee Bee said:
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
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a b U Graphics card
March 14, 2014 5:25:28 AM

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.
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March 14, 2014 5:29:33 AM

Gee Bee said:
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
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a b U Graphics card
March 14, 2014 5:35:35 AM

OK, that's long enough.
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March 14, 2014 5:39:53 AM

nope hasnt seemed to work
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a b U Graphics card
March 14, 2014 5:52:20 AM

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.
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March 14, 2014 6:45:43 AM

i'll probably take it to shop tomorrow, thanks heaps though
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a b U Graphics card
March 14, 2014 6:49:51 AM

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