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9800 GX2 doesn't work, tried two already

Last response: in Graphics & Displays
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March 29, 2008 8:00:17 PM

I built my new PC, and when I put the 9800 GX2 in, it wouldn't boot up. I just get a blank screen and one short beep. I thought it might be defective, so I bought another one to test... same thing happened. Right now I'm using a temporary PNY GeForce 8500 GT card until I can figure out how to get my 9800 GX2 to work. Could it be the power? I have 750W, which should be enough. Here's my specs:

750W power supply
Intel Core 2 Duo E6750
ASUS P5K-E WiFi AP motherboard
2 Seagate Barracuda 500 GB SATA hard drives
Samsung Lightscribe DVD-RW SATA
Floppy Drive
Thermaltake Armor Series VA8000BWS. Has 4 fans.


Anyone know what's going on? I want to get my 9800 GX2 up and running

More about : 9800 gx2 work

March 29, 2008 8:09:18 PM

Got the 8pin connector in? Has to be 8pin.


Or im stupid and it hasnt even got an 8pin but I thought it did.
March 29, 2008 8:11:18 PM

make sure your wire hook ups are okay. Make sure every power connector is connected properly. That been can meant that the CPU fan isn't plugged in properly, but I think it might be that the Video card isn't getting power.

My computer made a long beep when the power connector wasn't connected. Make sure both lights are green and not red on the 9800 GX2
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March 29, 2008 9:08:43 PM

8 and 6 pin, my cpu has both. Both lights are green on the gx2. it's teh video card that doesn't work.. i'm on the computer with a different vid card in right now
March 29, 2008 9:16:40 PM

One thing that caught me out when I swapped from ATi to nVidia is that using a DVI lead I only get a signal out of one sockets on the back (the lowest one, closest to the motherboard), the other stays off until I get into windows. This even happens with only 1 monitor connected so at first I thought I had a duff card.
March 29, 2008 9:20:31 PM

and sorry but i meant to say 750w and typed 850w on my first post. i corrected the original post
March 29, 2008 9:57:11 PM

What *kind* of PSU is it? A POS 750W will likely have issues. Since you had problems with the 9800 GX2s and they work for other people I'd say the problem is probably with your system.

-mcg
March 29, 2008 10:23:32 PM

It might be that the 9800gx2 doesn't play nice with P35 motherboards. I'm still waiting for a confirmed case of the two working together. All the reviews used an SLI motherboard.
March 29, 2008 10:26:26 PM

Might need a BIOS flash.
March 29, 2008 10:35:27 PM

coolermaster realpower 750w... it's actually a psu that nividia confirmed to work with the 9800 gx2 .

which BIOS to flash? motherboard or video? because i don't know how i would be able to flash the 9800's bios if i can't see when it's connected.
March 29, 2008 10:51:14 PM

yes thats true your bios might be out of date! lol try to update. If not then replace it one last time and see where that takes you. I had no problem with mine, what brand 9800 Gx2 is it?
a b U Graphics card
March 29, 2008 11:08:49 PM

try both dvi inputs, that worked for me.
March 29, 2008 11:11:13 PM

well no that won't do it since he's hearing 1 long beep. At least I don't think he would
March 30, 2008 1:02:26 AM

One short beep is the motherboard stating all is well. I had this problem not long ago. My problem was the card had a bigger default resolution then my monitor, so my monitor couldnt display anything.

I'm 99% sure this is your problem. The only way to fix it is try a monitor with a higher default resolution. Once you get into windows and load the right drivers and set the resolution then you can swap back.

Having green lights on the card a one short beep is definately a successful post beep.

All I use is Asus boards and they beep one short beep on successful post every time.
a c 143 U Graphics card
March 30, 2008 1:21:35 AM

Qwakrz said:
One thing that caught me out when I swapped from ATi to nVidia is that using a DVI lead I only get a signal out of one sockets on the back (the lowest one, closest to the motherboard), the other stays off until I get into windows. This even happens with only 1 monitor connected so at first I thought I had a duff card.


I think that's normal. My 8800GTX feeds two monitors. The second monitor starts getting signal only after Windows has booted. I'm guessing it's because the drivers have to load first and notice I'm running DualView.
March 30, 2008 2:14:36 AM

Most likely it's a power issue (requires 350W?), Nvidia wouldn't put out 2 bogus cards in a row now would they lol? Of course they do hehe but it's obviously not getting enough juice.

If you are using a power bar try switching it with another, that maybe preventing enough wattage being delivered to you PS, I have seen it occur after a lightning storm. Considering that you are using 2 HD's, 4 fans and how many sticks of RAM? you PS could be lacking b/c of that.

A few adjustments in using the correct power leads could be an issue also, but you do not need to flash your BIOS to get the card to work. Maybe disconnect the DVD, some fans and a HD to lighten the power load and test the GX2 again.
March 30, 2008 2:32:54 AM

Yes 1 short beep but not 1 long beep!
March 30, 2008 6:52:58 AM

Have you tried a different monitor yet?
March 30, 2008 8:59:57 AM

Mine beeps when power cables arent connectoed to the GPU properly.


Are you gettin any LED's showing up? Dont they like indicate whats wrong on the GPU?


I mean a motherboard BIOS flash.
March 31, 2008 5:35:03 PM

I had to use the lower DVI port. Normally I would feel like a dumbass for missing such an easy thing... but not really -- it's not like they make a note of it in the instructions. Thanks for all your help!
March 31, 2008 7:25:04 PM

yeah I forgot to mention that, the Gx2 has a weird positioning of the DVI. trust me I went through the same thing, I thought the card was dead.

Anyways.

P.s

didn't you have a hard time put in and taking out the pins?? THe power pins??

To me it was a pain in the ass to put them in but an even more pain to take them out!
December 26, 2008 7:20:01 PM

my 9800gx2 beeps several times and no boot



amd 5000+
xfx 750a
2 80g WD 7200rpm
1 250g WD 7200rpm
6 fans
corsair hx 1000w
!