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No display after upgrading graphics card

Hi there

Today I got a gtx 650ti in the post and set about upgrading my PC from the old GTX 9800 I have. I removed the old card with little issue, and slotted the new one in. Rather pleased that everything had gone so well, I screwed everything back in place and wired it all up.

Sadly, this is where the success story ends. The machine powers on as it should, with the fans all spinning. Trouble is, I can't get any display from the damn thing. I tried differant outputs on the GFX card before removing it completely and trying the VGA output on the motherboard - no luck. I reset the CMOS to no effect. Installing the old card as it was before also yielded no success.

Any advice? I will post my rig down below. I should mention that the new card was beyond the spec of my PSU. Having said that, so was the old one according to nvidia's website. Is it possible the PSU is broken? If so, any way to test it? I dont mind if it is because I have a new PSU on its way to me now.

Also - yes I do know it was silly to install before the PSU arrived. I was curious! Would like to be sure the motherboard is still alive though.

My comp:

G31mX foxconn motherboard
Q6600 2.4 ghz processor
4gb ddr2 ram
1440x900 Samsung sync master monitor connect with VGA or DVI (through adapter)
Graphics: Right now - none. Old: 9800 GTX+ New: GTX 650ti
PSU: FSP 350w

Thanks guys.
5 answers Last reply Best Answer
More about display upgrading graphics card
  1. Best answer
    you need a new powersupply, the old one is not powerful enough and likely too old and cannot provide the power for the gtx650.

    http://www.amazon.com/Corsair-Builder-Series-Watt-CX500/dp/B0092ML0MY/ref=sr_1_1?ie=UTF8&qid=1376387842&sr=8-1&keywords=corsair+500 should be all the power supply you need.

    the old psu was most likely only just coping with the old card and as soon as you used the gtx650ti it finished it off and it can no longer supply enough 12v power.
  2. This sounds like the four-pin cpu connector not in/getting power. Try pulling it out and putting it back in. (The connector is usually in the top left hand corner of the motherboard.)
  3. mauller07 said:
    you need a new powersupply, the old one is not powerful enough and likely too old and cannot provide the power for the gtx650.

    http://www.amazon.com/Corsair-Builder-Series-Watt-CX500/dp/B0092ML0MY/ref=sr_1_1?ie=UTF8&qid=1376387842&sr=8-1&keywords=corsair+500 should be all the power supply you need.


    Yeah I have a 500w one arriving soon. Do you think trying to turn on the PC with the new card completely buggered the old PSU? If it was not providing enough power, I would hope that the problem would be resolved once the card was removed?
  4. blanejmc said:
    This sounds like the four-pin cpu connector not in/getting power. Try pulling it out and putting it back in. (The connector is usually in the top left hand corner of the motherboard.)


    Gave it ago and no luck :( Thanks anyhow!
  5. Barney Willis said:
    mauller07 said:
    you need a new powersupply, the old one is not powerful enough and likely too old and cannot provide the power for the gtx650.

    http://www.amazon.com/Corsair-Builder-Series-Watt-CX500/dp/B0092ML0MY/ref=sr_1_1?ie=UTF8&qid=1376387842&sr=8-1&keywords=corsair+500 should be all the power supply you need.


    Yeah I have a 500w one arriving soon. Do you think trying to turn on the PC with the new card completely buggered the old PSU? If it was not providing enough power, I would hope that the problem would be resolved once the card was removed?



    i edited my post but if you missed it i reckon the psu was already running near its limit and that surge of current the 650 would have needed most likely finished it off.
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