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Geek Culture / Graphics card problems.

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Demon Air 3D
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Location: England
Posted: 14th Apr 2009 20:44 Edited at: 15th Apr 2009 15:11
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Ive just bought an XFX 8800gt Alpha dog edition, I put it in and fire up my pc then nothing shows up on my monitor. And yes my computer has pci express. It used to have an 8400gt.
Is this a motherboard compatibility issue ?

Thanks for any help !
And if you need more info just tell me.
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Lukas W
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Location: Sweden
Posted: 14th Apr 2009 23:03 Edited at: 14th Apr 2009 23:04
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Doesn't that card use pci-e v2.0?
Or maybe it's compatible with both versions.

Aanyywaay,
Did you connect the 6pin power chord from the PSU? or maybe it was 8pin, but I doubt it.

edit:
PS, don't buy that card if you're not willing to buy a new fan/cooler. That little bastard's a real jet plane. Oh, you already bought it..

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Demon Air 3D
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Posted: 15th Apr 2009 00:36 Edited at: 15th Apr 2009 00:52
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Quote: "Doesn't that card use pci-e v2.0?"

Says on the box it can use 'PCI Express x16' :/

Quote: "Did you connect the 6pin power chord from the PSU?"

Yep. Maybe its my gay motherboard. OR i might need a new powersupply.
EDIT: Could be my jumper settings.
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James H
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Location: St Helens
Posted: 15th Apr 2009 06:00
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I have a pci-e v2 card in a v1 mobo. Was going to get the alpha dog but they had sold out(little more than a year ago - got a 8800GT512mb ships with oc by gigabyte). Works fine. I didn`t have issues with Vista but a friend did with XP - forgot to uninstall drivers for ati card first - his new one was by nvidia. Did you do that? If your old graphics was AGP(some mobos have both I think) or integrated, did you switch the bios setting from integrated/AGP or maybe even pci to PCI E?
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Demon Air 3D
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Posted: 15th Apr 2009 14:20 Edited at: 15th Apr 2009 14:38
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Actually i never uninstalled my old drivers, i will try that .
Thanks !
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Strelok
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Location: In your cupboard.
Posted: 15th Apr 2009 15:41
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how many Watt does your PSU have ? I think you need minimum 400watt for 8800.


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Demon Air 3D
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Posted: 15th Apr 2009 17:13
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I'm not sure, i will take a look...

Thanks
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Lukas W
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Posted: 15th Apr 2009 19:12
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Quote: "I think you need minimum 400watt for 8800."

I believe the card itself uses 78watt for stock clock speeds.
But I understand that this wasn't what you meant. 400watt is probably enough. This, however, I would assume to be true in the case that you have either a multiple +12v output at 7.5A each (if there were three such outputs), or simply a +12v rail running at a minimum max range of 20A. (But I know nothing about this.. However, I seem to recall that the card requires a PSU with 20A to function. But I could be wrong.)

Anyway,
* Try the other DVI socket on your card. Maybe, somehow, your computer figured it should output data to that instead of the original.
* Your card might be defect, so test it in a different computer (or several)

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Demon Air 3D
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Posted: 15th Apr 2009 19:47 Edited at: 15th Apr 2009 20:10
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Argh my computer has only got 250 watts
Could this explain why my computer screen always stays black when i put this card in ?
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Lukas W
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Posted: 15th Apr 2009 20:16
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On my computer, whenever the graphics card is receiving too little power (when I forgot to plug in the 6- or 8-pin (I always forget what it is)); I get no picture on the screen, and my motherboard makes a beeping sound, like a warning.

I assume you don't get that beep? So it's hard to say.
Though unfortunately most likely.

Ps. I have the same card as you (running a 650W PSU though).

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Uncle Sam
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Location: West Coast, USA
Posted: 15th Apr 2009 20:28
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What's funny is, my power supply died, so even though my Geforce 9800 gtx + requires 450W of power, I'm temporarily running it with a 350W supply! I may have noticed a small decrease in the framerate, but other than that it works fine.

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Demon Air 3D
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Posted: 15th Apr 2009 20:42 Edited at: 15th Apr 2009 21:18
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LOL! My computer has 250 Watts and my XFX 8800GT Needs 500 Watts.

Quote: "I assume you don't get that beep? So it's hard to say."

Well when i dont connect the wires from the graphics card to the power supply it makes that noise but when i do connect them it does nothing, all though it does fire up...
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Asteric
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Location: Geordie Land
Posted: 17th Apr 2009 19:21
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yeah, looks like you will need a £70 power supply like me, mine was 550 watts i think, along with my Radeon 4850 which needs 400 i think, also, double check small stuff like all the correct cables are plugged in, and that when you connect cables together, the colours on the actual wires match

Sci-Fi Tank
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Demon Air 3D
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Posted: 18th Apr 2009 15:25
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I got a 600 Watt for £30
Also it was my motherboard. I had to buy a new one.
Thanks everyone.
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Asteric
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Posted: 18th Apr 2009 16:52
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Dude, at £30 you can expect a lot of varied wattage, you may bo to 300 if it is a cheap make, that why i got a really good one, that always gives around 550

Sci-Fi Tank
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Demon Air 3D
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Posted: 18th Apr 2009 22:21
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Mines actually pretty good, Its a 'Cooler master' Or something like that...
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bitJericho
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Location: United States
Posted: 18th Apr 2009 22:24
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30 pounds isn't that cheap of a psu. At least, in the US.

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