8800GT problem

It could be your power supply what are your specs?

What MB? did you update the bios?

I was at the EVGA forum and someone had the same problem. I told them my story about getting a 7800gs when they first came out. Same thing, I tried everything, finally I put in the xp cd and booted to it. WALA! the install screen came up. I had to reinstall xp, and after that never had a problem again. Of course those guys blew me off and told two people to RMA their cards. They were 8800gt's also. I sold the 7800gs last year to a friend and it is still going strong. Just trying to help! The computer would go through all of the motions with boot up, just nothing on the screen and no signal.......

Just try the vista cd, I am not saying it was some magical thing with xp. I wouldn"t know about the fan speed, but I suspect it is because due to your problem the drivers are not installed since you don't have a signal.

If it is a bad card, then you will be a little closer to a RMA. I hope not. Another thing is, do you have the monitor plugged into the left digital out put on the card? I didn't have a post screen either with the 7800gs.
I know its weird, and it may mean nothing in this case but, just trying to help, in the excitement of getting the card, you may have forgotten something......

It may not work, but at least you tried, there are alot of things it might be, from a bad seat with the card...etc. Just go back through your installation steps, you will find the problem. I can't believe that all of these card companys released bad cards for sale. I know the 7900gt had a serious problem with the vram when it was release, I had bought one for this build and ended up taking it back and getting a 7950gt than has run great for 10 months.

If the fan works like old 8800s it should slow down when you enter windows.Then of course you can adjust it by using software.I use Rivatuner and works fine.For 8800 GTS that is.Try that Vista reinstall or repair option the other guys told you.Its the best you can do at the moment.It would be good if you could try the card to another computer also.

I could see using a CD if it would POST but not show anything while Windows was booting. This happens to me too when I'm using the Microsoft version of the graphics drivers. To fix it, I just uninstall from safe-mode and install NVidia drivers. Maybe that's not the same thing as what the rest of you are talking about.

But for OP's issue, it either means there's a problem with the card itself, or it's not supported. The card IS PCI-E 2.0 compliant so I don't know if that would work with PCI-E 1.0 or 1.1. Try in another box if you can and see if it posts. If so, then it's most likely your board. You may want to call NVidia and ask if the GT is PCI-E 1.0 compliant.

BTW it would post without being plugged in to the PSU. You would get Windows errors stating that the card isn't getting enough power though unless the cards have changed that much since the 7-series cards. So it's most likely not the PSU.

im confused, if i try from cd now, shouldnt i get a signal whilst teh mobo BIOS post screen is showing? then it would loose it whilst loading windows? because im just not getting a signal full stop?

Thats what I said, it was the dangest thing I had ever seen.

I had a similar problem with an ATI 9800Pro.When i used a dvi to vga adapter it worked fine
Also riv do you hear any beeps from the mobo?If you have a speaker.

One thing that it might be.. have you tried both dvi/ vag outputs?

it could be that its defaulting to a output that you have nothing hooked up to.

does he run a bigger (watts) power supply than you do? you may just need a new power supply. If you have been running this motherboard, just with a different graphics card, the motherboard is probably o.k.. Another thing is, did you upgrade to the latest bios before installing the card? It maybe as simple as a bios flash to solve the problem. Try the bios flash first, if you haven't yet, then if that doesn't work that narrows it down to not enough power supply. 450w seems a little light for that card.

It dosent really matter how much watts the psu has. Of course it does matter but, how much amps a psu outputs is more inportant. If you have around 30amps you should be fine with a 8800gt.

maybe you have to disable onboard graphics first
some mobos have that problem

Ok I a bit lost.

Is it that you get no display intially or you just don't see the bios/boot screen and only see the windows loading splash screen?

The later is a common problem when LCDs don't support the default resolution of the BIOS, some cards handle it better than others, and some LCDs handle it better than others.

Hey im having the same problem i just got my 8800GT and my monitor is not reactting to it, it works fine with my 8800GTS tho. I am going to test out the XP thing hope it works. Anyway if anyone has updates on what the problem might be then i would love to hear it. I have a asus motherboard, 600W PSU everything able to run this card.

Anyway thanks for your help.

Haha guys, this is the easiest problem ever.

It is called "unexpierenced pc hardware installer"
I bet that none of you with this problem has a ground cable attached to the cabinet or your wrist.

Without doing this you actually have the risk of electro shocking the equipment you are installing and have installed.

If the screen is black and the fans are running, the motherboard is dead, because the PSU still delivers (turns on/off) power when you push the button. It is what keeps all the fans going and no image on screen.

Dead motherboard.

I always burst the motherboard first, dunno why, my 6800XT is immortal!
My 6800 have been in 3 motherboards now. (Motherboards dont like me)

PCI-E 2.0 is backwards compatible with 1.1 (most boards 965 and newer) not 1.0

I have no idea what the specs are for the asus m2v motherboard but that could be the problem if it is not working.

Its not dead VGA or anything like it. I have confirmed with Nvidia they are backwards compat with 1.0, 1.0a and 1.1. So to test this i switched from the m2v asus mobo, to an asrock one. guess what? worked 1st time! So it seems certain older motoerboards dont like the 8800GT wheras some do! Simply a case of switching mobo!

oh and im on pcie 1.0a now !

Hmmm i no it has nothing to do with the motherboard dieing. . . i am going to update my BIO's and see if that help at all i have a Asus A8V-VM <green> motherboard

It has already started to hit some of the vendor forums that many of the newest motherboards are not functioning with the new 8800GT. Check out the Abit, Asrock and Nvidia boards. It appears to be a compatibility problem with PCI-E 2.0. While the new boards should function fine not every implementation by Motherboard manufacturers was correct or compatible. Abit is reporting a bios problem with at least one of their mainboards. More then likely a problem with specifications, interpretation and implementation.

anyone have an asus m2a-vm that's having problems? because that's the mobo I was going to get along with a pny 8800gt.... i may put my plans on hold though if the mobo won't like it.