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Graphics Card Won't display

Last response: in Graphics & Displays
August 25, 2009 5:03:22 PM

I have a Geforce 7950 GX2 Graphics card that won't display in a Dell Dimension 4700.

The Dell will display an Geforce 8800GT graphics card. And when i put the 7950 GX2 into another computer, it works fine.

You can hear the graphics card running and whatnot. The fans spinning and all. But the only way to get video is to connect the monitor to the integrated gpu that the dell has. I've gone through the bios and there is no setting to set it to PCI-E only, only one to set it ton the integrated and auto, it's set to auto obviously.

The card is in fully, that i can asure you. I made sure that it's not touching any of the connectors or anything like that too. Not sure what could be the problem.

Suggestions? Idea's?

More about : graphics card display

a c 271 U Graphics card
August 25, 2009 5:11:06 PM

Is the Dell PSU up to the job?
August 25, 2009 5:19:09 PM

The psu was replaced with an 550 watt psu. Cant think of the name.

Surely if the fan kicks on and windows loads it cant be the psu?
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a c 271 U Graphics card
August 25, 2009 5:30:13 PM

I've had that happen on an SLi rig where it would run fine with one card but with two the fans would spin up but no picture, I applied one meatier Corsair flavoured PSU to problem and it ran like a champ.
August 25, 2009 5:46:48 PM

So the psu cant handle it?

Kinda odd.

Why can it handle an 8800gt?

The 8800gt surpasses the 7950 GX2.

That's where i'm confused.
a b U Graphics card
August 25, 2009 6:37:34 PM

Strange. Are there any beeps?
a c 271 U Graphics card
August 25, 2009 6:49:12 PM

What is the PSU?, the 7950 x2 only has one power socket IIRC so wattage should be OK but what about the amperage?
August 25, 2009 9:24:26 PM

I'm not sure what the wattage is on that power supply, the computer's psu that i tested it in though have these specs:

Type ATX12V
Maximum Power 500W
Fans 1
PFC Active
Main Connector 20+4Pin
+12V Rails 3
PCI-Express Connector 2 x 6-Pin
SLI Certified
CrossFire Ready
Modular Yes
Power Good Signal 100-500ms
Hold-up Time 20ms at full load
Efficiency Up to 85%
115V - Full load 76%; Typical load 82%, Light load 77.9%
230V - Full load 80%; Typical load 85%, Light load 79.45%
Over Voltage Protection +5V trip point < +6.5V
+3.3V trip point < +4.1V
+12V trip point < +14.3V
Input Voltage 100Vac to 240Vac +/- 10%
Input Frequency Range 47 - 63 Hz
Input Current 9A @ 115V, 4.5A @ 230V
Output +3.3V@23A, +5V@17A, +12V1@17A, +12V2@17A, +12V3@17A, -12V@0.8A, +5VSB@2.5A
MTBF >80,000 Hours
Approvals UL, CUL, TUV, CE, FCC, CCC, CB, C-tick
August 26, 2009 12:40:04 AM

This does not sound like PSU problem to me, since it can run the 8800GT just fine. It actually might be a driver problem.

By the way, you can't set the PCI-E card to run in 2.0 or 1.0. If you have a PCI 2.0-E slot and you have a PCI 1.0 card, the motherboard chipset will automaticaly be compatible with the video card. In other words, you can down grade and use low bandwidth video cards in high bandwidth video card slots, but generally not vice versa.

Hope this helps

August 11, 2010 11:36:54 PM

Bump. I'm having the same issue but my card is an NVIDIA 9600 GSO on a built-it-yourself PC. I'm running with a 600W Ultra PSU which is carrying 32A and 384W on the +12V rail. I also only have 2GB RAM, which I'm wondering if that's the issue. I'm about to test and see. Any more info out there that might be helpful?
August 11, 2010 11:42:31 PM

Update: After about 10 minutes of nothing on the screen, WIndows finally welcomed me and gave me a pop-up saying basically "update your driver" which is what I was trying to do all along. So it's installing now, I'll update again when I know something else.