7800gt flash gone bad!

[teko]

I tried to flash my XFX 7800GT with a MSI 7800GT bios, it went wrong! The screen was displayed distorted, like some kind of wierd moving mosaic..
I then tried to flash it back, result, the mobo couldn't find the card and can't start with in plugged in. Then I plugged in a PCI card without the XFX in, and it started fine, I used my dos boot disk with NVflash and booted in to dos. Then I plugged in the XFX and ran NVflash detect. It detected a unknown NV47 device, and the wrote that no nvidia cards was detected. I then tried to flash the bios, with the same result, unknown NV47 device found, and then no nvidia cards found.
Anyone have any ideas?
Btw. will be back here in approx 10 hours, but if someone could write some tips I would REALLY apriciate it!! :toast:

Edit: I have tried Forced flash..

[freecableguy]

insert a PCI card and boot into the BIOS, set to PCI video as primary
shutdown and power down, insert the PCI-e card and boot back up with a boot disk installed
flash the PCI-e card and then power down
remove the PCI card and boot back up
set PCIEx as primary in BIOS
should do it

[teko]

Doesn't work, I'm unable to detect the card properly.. It's able to see a Unknown NV47 device, but not any Nvidia cards.. Pretty strange..

[Jochenp]

RMA ;) I bet XFX can fix this easily enough.

[madgravity34]

You should try and force it to flash and ignore warninings.

If you are using the latest version of nvflash type this:

nvflash -5 -6 [biosname].rom


it might help.

[Jochenp]

If I understand it right, when he forces it to flash, it says that it didn't found any device to flash the bios too.

[teko]

Jochenp you got it right ;) I'm going to try a little more today, but unfortunately I doesn't have a lot of time these days :/

[teko]

Anyone who have tried using the overide function in NVflash? It might be the solution..

[teko]

problem solved, thanks to Malve@Mvktech :)

[Daveb2012]

Teko please post what the fix was incase any one searches on this topic so they can see what worked for you. I was going to recommend a blind flash with Nvflash and the "bad" card in, using autoexec.bat file on bootable floppy. Is this what you did?

[teko]

Well I'm not proud to write the fix :/ It's just using NVflash 5.25 instead of 5.13.. Just didn't know that there was a version that was newer than 5.13.. I used 5.25 intially I think, but it wrote that it was version 5.10 so I must have mixed something up initially, I just thought that it was because someone named the file wrong..

[freecableguy]

yeah, thats right, you need 5.25 for SLI setups...

[teko]

I doesn't have SLI.. But it might be because it's the black version that uses a different PCB..

[Zenjirou]

Ah, was about to ask similar question.

I have SLI and used 5.13 and ended up in unstable crashes and flashing. Not to mention 3D games not loading. Even though I flashed each one seperately.

I reflashed to defaults using 5.13 , yet suddenly no overclocking is possible without locking the system up when you click "test settings".

I suppose 5.25 is necessary for SLI setups.



Does anyone know if you are SLI, do you have to switch out each card? Or can you flash both of them at once.
I did them one at time, but was troublesome with tubing etc(on water).

So two can be flashed without removing one. Meaning with 5.25, it flashes both during one time?

[Semper Fi]

Can someone please answer this question by Zen? Can you flash two of the same 7800gt in SLI at once? If so, what are the steps?

[gundamit]

Can someone please answer this question by Zen? Can you flash two of the same 7800gt in SLI at once? If so, what are the steps? Link-a-dink-a-doo. (http://forums.nvidia.com/index.php?showtopic=10118)

[Semper Fi]

awesome gun, thanks!

Can this be done from windows or do you need to flash in dos only?

[gundamit]

awesome gun, thanks!

Can this be done from windows or do you need to flash in dos only? Outside of windows. Iknow some flash mobo bios with Win utilities but I've always thought it was safer from DOS. Are you planning to edit your bios with Nibitor?

[Semper Fi]

Just did it, running like a champ.

Went from 475 to 500mhz stable on the cores.