HELP needed! No Video Signal on BFG 6800 GT

Xatrix

Senior member
Oct 19, 2004
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Here is the problem:

Card was working just fine up til today.

I was putting in some audio cables into my PCI audigy 2 ZS while windows was on... and the sound card got unseated. I shut down pc, reseated PCI card, and turned pc on again... to be greeted to no video signal.

Tried taking out PCI cards. Nothing.

Tried booting with just Memory/Vid Card/CPU... nothing.

Reset CMOS.. nothing.

Put in different video card (geforce2) ... works!

Put in BFG 6800 to other computer... works fine in that machine.

Tried flashing Vid card BIOS. Nothing.

Tried deleting all nvidia drivers and cleaning them... nothing.

Help lol...

MOBO: ASUS A8V rev 2.0
Gfx: BFG 6800 GT OC
RAM: OCZ 3200 Plat 2: 2x512
SATA on Northbridge (VIA)

 

DrCool

Senior member
Aug 3, 2001
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0
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could be a power supply problem...

try booting with just 1 hard drive, 1 optical drive, no case fans.

your system requires alot of juice, and the power supply you have may not be cutting it.
 

DrCool

Senior member
Aug 3, 2001
871
0
76
yeah, the obvious kink in troubleshooting here is that you tried the card in another system and it worked fine.. so that eliminates the possibility that the card died. you've also eliminated the possibility that its the motherboard (agp slot) as you've tried another video card, and it worked fine..

were you using the same physical power connector on the video card, each time?

also, see if a new motherboard bios has been released, and flash the board to that..
 

Xatrix

Senior member
Oct 19, 2004
398
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76
Im using the newest BIOS drivers 1.007.

I don't really understand why anything would be different, everything worked fine up until my last restart.
 

iamtrout

Diamond Member
Nov 21, 2001
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How the heck do you unseat a PCI card while the computer is on? Was it not screwed in? If so, what happened when the card got unseated?
 

Xatrix

Senior member
Oct 19, 2004
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The only reason I mention the pci card becoming unseated is because it was the only thing that happened in between good boot and bad boot.
 

lnin0

Member
Aug 26, 2001
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The only things I can think of if you already know the AGP slot is ok and the card is ok is to try a differnt p/s and make sure you have the 6800gt plugged in. As dumb as it sound that is what I did and you get no signal if that card is not powered.
 

Xatrix

Senior member
Oct 19, 2004
398
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Im powering the vid card on its own line that has been tested on other components for power.. and works...
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
Super Moderator
Aug 22, 2001
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And I was impressed with your first build being so sweet, then you go and do a classic n00b mistake :(Always screw down your cards, and never work with the system powered on or even plug in unless you have flipped the PSU switch to off so there is no 5v standby power to the board. I know it was just audio cables but as you can see anything can happen/go wrong when you mess with a powered system ;)

Since everything works but the GT+A8V combo doesn't, I can only guess that the board was damaged somehow and the reason the G2 works is that it doesn't draw enough power for whatever the problem is to recur? Makes no sense but neither does your problem. For sh!ts&giggles and while the GT is in the system, set it to clear CMOS, pop the battery out of the board, wait 5minutes, replace battery and CMOS jumper to default then try to power up while holding down the insert key. If that don't work I got nothin'
 

DrCool

Senior member
Aug 3, 2001
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yeah, like DAPUNISHER said.. your problem doesn't make much sense, so the AGP slot may not be giving the 6800 enough power, I've never heard of any situation where a working card, suddenly stopped working in one board, but worked fine in another..

usually when you fuBar something, it just stops working, period.

your only option would be to RMA the board and/or the card.

NOTE: obviously if you had access to an additional A8V or 6800, you could swap them and see what happens.
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
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Aug 22, 2001
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Originally posted by: Xatrix
So if that does not work... do i need to RMA the board?
Given everything works, just not together, I don't know what else to try. Technically it is your fault and thus a RMA not kosher, but given the odd circumstances and behavior I'd contact them and let their tech support try to help, then they can judge wether you qualify for RMA or not.
 

Xatrix

Senior member
Oct 19, 2004
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Already tried the tech support.. have an open case with Asus and the BFG dude had me try some stuff but no help there.
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
Super Moderator
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Originally posted by: Xatrix
Already tried the tech support.. have an open case with Asus and the BFG dude had me try some stuff but no help there.
Ask them to issue an RMA then, both of them. Better to replace both than one and potentially see the same issue recur.
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
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Aug 22, 2001
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Originally posted by: Xatrix
RMA is fun eh?

What kind of time am I looking at here to get my stuff back?
I can't say, too many variables and I have never RMA'd to Asus or BFG. I would play it safe and ship it USPS priority, FEDEX 2-3 day or the like to make certain it gets there fast, and expect a full 2 week turnaround just because ;)
 

Xatrix

Senior member
Oct 19, 2004
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Here is what the tech guy said at BFG:

Matt,

Thanks for bringing the issue to us for advice. However, you should
not
have flashed the BIOS on the card.
A) It voids the warranty and the card can't be repaired
B) It will not resolve this issue

This problem appears to be an issue with the motherboard. As much as
it
may not seem like a big deal to move, add or change cables while the PC
is
running, these situations can happen. Your issue is basically third in
the
line of "worst case scenarios". The next up the chain is a completely
non-responsive system, and the First in the line is a fire or
electrocution
occurred... So it's all-bad to do that. At this point, you're going to
need
to contact Asus to have the motherboard repaired. The system now has an
issue with the slots, in particular the AGP slot. Most likely the
component
failure is within the chipset stream. A slower card may not manifest
the
problem in the way this EXTREMELY FAST card has. This would be due to
any of
a number of reasons such as the pipelines to the processor, the voltage
delivery mechanism, or some other related device.

But, there is an outside chance that the issue is with the PSU in
the
system as well. If you try our card in the computer without the Audigy
in
it, what happens?

Thanks again and if you have any other questions please email us back
or
call for live support at (866) 234-3499

Mark @ BFG E-mail Support