BIOS MOD: 8800GT to 9800GT

[DSoks]

every time i try to flash the 9800gt bios it says eeprom not valid or something like that leading me to believe its looking for a 9800 to flash to and all it can find is an 8800gt

[NeViLLe]

^^ r u adding the -5 -6 parameters??

i.e.: a:/nvflash -5 -6 9800GT.rom

[knyte]

I am having the same issue.

EEPROM not valid.

And, I am using the proper command line:

nvflash -5 -6 9800gt.rom

Any ideas?

I have a EVGA 8800GT SC 512mb.

[NeViLLe]

^^ I have a eVGA 8800GT KO 512MB... and it worked like a charm on my card...

Dunno what's the problem is yours

I could suggest a solution... however I don't know if that will work coz I haven't tried it myself... so try it on your own risk

(1) a:/nvflash - r -5 -6 9800GT.rom
(I'd say this command is pretty safe... It basically removes the EEPROM write protect... )

(2) a:/nvflash -o level=3 -5 -6 9800GT.rom
(Haven't tried this... It's used when one cannot write to unknown EEPROM or adapter)

[knyte]

Okay, success!

After trying your "-r" command I was given 2 options:

0= BR04 (05B1h)
1= GeForce 8800GT

This clicked. The reason why it was saying "unknown EEPROM" was because it didn't know what the 1st device was. (I don't either.)

So, the command line I used was:
"nvflash --index=1 -5 -6 9800gt.rom"

If anyone else is having the "unknown EEPROM" error. Then type this:
"nvflash -a"

This will list all detected devices. find where you 8800GT is on the list, and use that number in the "--index=x" string. (where "x" is the number listed for your 8800gt)

I have no clue what the 1st device listed for me is. I only have one videocard and no onboard video. If it helps anyone else, I am running a EVGA 780i SLI motherboard.

[KiD0M4N]

Originally Posted by NeViLLe Should work with all 8800GT reference cards... I guess it should work with MSI 8800GT... (anyways backup the original bios and create a blindflash disk before trying it) The volt-mod is not harmful... since the increase is only 0.5v

You mean 0.05V

[KiD0M4N]

Originally Posted by knyte Okay, success! After trying your "-r" command I was given 2 options: 0= BR04 (05B1h) 1= GeForce 8800GT This clicked. The reason why it was saying "unknown EEPROM" was because it didn't know what the 1st device was. (I don't either.) So, the command line I used was: "nvflash --index=1 -5 -6 9800gt.rom" If anyone else is having the "unknown EEPROM" error. Then type this: "nvflash -a" This will list all detected devices. find where you 8800GT is on the list, and use that number in the "--index=x" string. (where "x" is the number listed for your 8800gt) I have no clue what the 1st device listed for me is. I only have one videocard and no onboard video. If it helps anyone else, I am running a EVGA 780i SLI motherboard.

Thanks for posting the solution buddy.

[abhaybhegde]

OT :Has anyone tried moding the 8800GT to 8800GTultra ?

IAX Tech -- Computer Hardware Reviews, Overclocking, Information

I would like to know the difference in frame rates

[sahilm]

Originally Posted by abhaybhegde OT :Has anyone tried moding the 8800GT to 8800GTultra ? IAX Tech -- Computer Hardware Reviews, Overclocking, Information I would like to know the difference in frame rates

You can't mod a 8800GT to a 8800 Ultra. I glanced at the article, they just bumped the voltage and overclocked the core and memory.

The 8800 Ultra has a lot more bandwidth than the 8800GT and there is no possible mod for the same. Also bumping voltages on a graphics card is very risky and should not be attempted.

Running your card at consistent high voltages will kill the card sooner or later. It doesn't matter how cool you run the card, the trasistors will break down due to excessive voltage.

[knyte]

I would like to ad the knowledge that after changing the BIOS of an 8800GT to a 9800GT that it will successfully SLI with another 9800GT, as my card just arrived today, and they paired up without a hitch!

[Superfrag]

nice to know that!! looks like thats a huge point of modding it..

[redwine]

EN8800gt 512, upgrade to 9800 gt.. provided,.. detected properly as 9800gt in vista x64..
none of asus drives work for reading gpu temps.. nor does everest..
anyone find a asus EN9800gt 512 rom file?
checked everywhere i could look..
only luck now is just to order a 9800 and try copying the bios.. ehh.. well was hoping to have 8 monitors at times.. and others dual sli perhaps running 2 monitors..
2 south bridge chips dual sli capable etc..
Just thought of making these 8800;s more compatible with a possible 2 more 9800;s though.. in my case ..
I feel it might not make a difference unless NVidia is that picky..

[redwine]

Right so after windows shopping...
en8800gt 10$ cheaper then en9800gt
recert^ new^
2 2
to get a possible 4 way (not quad x2 x2) sli setup with two southbridges as so...
Hardware Secrets Forums
not needed, but would be nice if it works.. which might require me just finding 2 more identical 8800;s is all.. unless getting the 9800;s works PnP
with the other 2 8800's
80% of the time it will allow more gpu power for me to play multiple instances of mmorpg;s
currently works great..
but my end result is about 1 gamer per card.. instead of the current 2 per card..
and then when i'm board i can futz with sli games... with one big monitor os something when i win the lotto.. lol anyways..
any help or hints or ideas would be greatly appreciated..
if ya dont wanna post or regester errrr what not...

my setup- ASUS ln164 original quadfather.. with modded bios for barcelona and opteron 2200;s
cpu- temporary santa rosa x1 2212 @ 2.0ghz achieved 2.9 flawless benchmark for about 12 hrs.. but required oc memory and loose timings of 6-6-6-18 and 1066 branded memory.. unreg non-ecc at the time..
future plans for 2360x2 or instabul fastest ddr2-reg-ecc available..
etc etc so forth.. truly my multimegatasking dreams come true, and no-where near end-of life even though amd gave up support on all the people that dished tons of money for this rad idea.. that even $$$ intel is mimicking with skulltrail..
o no im getting bored im using faces.. well i tried all the bios roms i could find with similiar trates besides the 9800gt.rom one.. which caused some drive issue to fail when attempting to bring up nvmonitor.. to attempt to find gpu temps..

which i have a link for on how asus 8800-gts have a open-gl algorithm?? err i dunno programming but ya.. a different way of sending temp signals.

all in all.. i'm stuck with deciding on what 2 more cards to get.. and if it dont matter... in this type of setup.. could i mix 2 dif sli;s perhaps.. match two kick ars cards in the sli x16 x16 slots... and then put the old 8800gts in the two x8 x8 slots??
that would be even cooler.. since i dont really use sli alot.. hmmm dunno lost in all this... all these dam cards.. why cant they just make 1 card.. with a credit cards slot.. the more you pay.. the faster it goes hahah rofl..
anyways.. thanks for any ideas if yall have some to share



runme@Optonline.net

[pelozakiman]

Works fine on a MSI NX8800GT OC 512MB V801 Green PCB with the first reference cooler

[deddyeka]

good work... now my turn hehehe