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8800gt EFI64 ROM

The Rominator said:
OK, this is a bunch of Hooey...I have a 9800GT from BFG with 1 Gig of RAM running just fine with Mac 88GT ROM.

HOWEVER...it shows up as 512 Megs.

I have moved the straps and device id from PC ROM....is there a place where this RAM amount is an entry in ROM?
Click to expand...

good question ! I try it the Next Days, i think there is maybe one Way to do it !
my Friend does have a 1024 9800GT will try to fix the 1024 issue
 
Hey I have a question about Flash 8800GT PC card "Can I just Put the card into PC desktop to flash the BIOS or MUST put into MAC PRO desktop to Flash it duo to I am failing in Flash in PC desktop or maybe it's my XFX 8800GT(G92) video card not work,,does it means G92chip cannot successful flash to Mac version???

Thanks!!!
 
The Rominator said:
OK, this is a bunch of Hooey...I have a 9800GT from BFG with 1 Gig of RAM running just fine with Mac 88GT ROM.

HOWEVER...it shows up as 512 Megs.

I have moved the straps and device id from PC ROM....is there a place where this RAM amount is an entry in ROM?
Click to expand...

I just recently flashed an evga 9800gt with 512mb and after the flash the fans ran full blast.

I was wondering if after your flash your fans ran full speed on the card? Or did you do some hex editing and if so what values must I add.

Thanks!
 
I will toss the 98GT in again and see about fans.

What we NEED is to do the same thing Pipolomo42 did fro 4870 .....move the PC BIOS into the Mac ROM, replacing the 8800GT PC BIOS but correcting for this insertion.

Could open up ALOT of cards to work on Macs if we figured this out.
 
Are the efi start and end flags the same on the 8800gt rom? If so I'll probably try exactly the same process that pimpolomo42 did and hope for the best... At the least, I found a purpose for my old pc.. testing and dumping roms...
 
I show the place in the ROM where the PC BIOS ends and the EFI starts. The second device ROM starts with a "55AA" just as the first one does. All of the "FFF"s are place fillers, which must be counted for, I believe.

Note the third line down at begining of both Mac EFI ROMs...The 64bit one is "de101106" and the EFI32 one is "de100206". These are the different device id of these cards. There is supposedley a device id 602 ROM for 64bit cards, it would be great to get ahold of it too.

These are from the EFI32 and the EFI 64.

The end shots are just that, the end of the ROM.
 

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Everyone looks like not wanna answer my question,

Is that worth to upgrade ATI 2600XT to Evga 8800GT which is flashed,if so I only can buy it from ebay, or waiting for 4870ROM to ready to go,thanks
 
I guess it depends on how much you get the 8800gt for. I have a 9800gt from my pc lying around and its the same core with a die shrink so I'll be tinkering with that.

What would you be using your mac pro for?
 
Not a common brand, so import, and cost more than official apple upgrade :)

Actually both LeadTek, and MSI are mentioned positively. I don't use bootcamp.
 
So i've been trying to get the 9800gt recognized natively in my hackintosh so far I have made a frankenrom of the 8800gt rom posted here with the 9800gt bios (changed the device id of the 9800 to an 8800). When I look in system profiler I see that os x can see the new rom revision (8800gt efi) but still reporting the wrong device id (0605 instead of 0611). Is the device id on the hardware level and if so any way to change it?
 
Are you positive about the last digit is in the rom? I read somewhere that nvidia device id's last 3 numbers were changeable and ati device id's only the last digit was changeable. I'm probably wrong since you know more about roms, but just throwing up what I have heard.

//Edit:

I was mistaken, my memory of what I read is bad. What I read was that for agp cards, the last 2 digits were in the rom while pci-e cards the last 3 digits were in the rom.
 
milk242 said:
I was mistaken, my memory of what I read is bad. What I read was that for agp cards, the last 2 digits were in the rom while pci-e cards the last 3 digits were in the rom.
Click to expand...

Please post a link to where you read this.

Since device ids are 4 digits, I can't imagine that the last three are set via ROM.

In my experience, the softstraps in Nvidia ROMs set the final digit. When a G92 card has a blank ROM, it will show up as id 0600 or 0610. This is why many people who flashed 8800GTS with EFI64 ROM ended up with cards that wouldn't work in Windows. Card & ROM had different ids, Windows gave up.

With the ATI 4870/4850, when blank it is 9440. This behavior has changed from AGP days, ATI cards used to be set in stone. With the FireGl X3, you needed to change ROM to match card.

In any case, I don't believe that 3 digits is correct.
 
So my original 8800 that I bought together with my MacPro (early 2008 model) turned over and died a few days ago and I'm looking to replace it. I can get my hands on a Inno3d 8800 GT which I am hopeful will work in my box but before I take the plunge...

As far as I understand I need to do 2 main things to make it Mac compatible:

1) Flash it with a Mac friendly ROM in a PC.
2) Sort the power supply.


Now I have questions about step 2. I see there are two main ways to solve the power cable issue. A) is to use a 4 pin molex connector and B), buy a cable like this. But in my situation, can't I use the cable from the 8800 that came with the MacPro? I admit I already tried removing it from the card, but it seems to be attached pretty well and I'm not sure how hard I should try to pull. Will it come off? ;)

Regarding the flashing process, from what I understand I just need to ensure it's a card with a 1MBIT ROM and then apply the 64kbit EFI bios and it should "just work"?
 
The Rominator said:
last digit is posted by ROM

I have been posting this for weeks

everyone ignores and acts like im crazy

in the softstraps
Click to expand...

You are not crazy! I tried your EFI 64 versions of the 8800gt rom on my Asus 8800gts 512MB G92 card. Its totaly works in my Mac Pro (3,1) 2008. I can boot OS X and Vista/XP from bootcamp. Newest Nvidia drivers work also, just like a normal PC. So, to clear things up; yes it's possible for people to have a 8800GTS pc version flashed to MAC and work with the Mac Pro (3,1) 2008 with Rominator's hacked roms.

Cheers to all!


Michiel
 
The Rominator said:
How does the card show up in System Profiler in OSX and System Information in Windows?

Are you one of the people I emailed a ROM to?
Click to expand...

In OS X it show up like this:
8800gts.png


In Windows it show up like a regular 8800GT. Notice that under OS X I enabled QuartzGL via de debugger app. OS X is even more snapier now, great! I flashed my 8800gts 512mb on a pc and orderd the powercable from a webstore, it's the regular Quadro 4500 cable and comes with an Apple manual for the original G5.

Cheers

btw. I got the roms from this forum. There were 2, 1 original 64efi and 2 overclocked one. I run the original hacked one ;)
 
vortigern said:
Thanks for the thread guys, great work.

But I've registered to relay some bad news. I have an inno3D GREEN PCB 8800GT dated 49/2007 part number i-8800GT-H5GTCDS.

When I run nvflash --check it lists

eeprom id (1f ,65) : Atmel at25512a 2.7-3.6v 64kx8s, page

So a green PCB would appear to be no guarantee.


EDIT:

Tech report has some interesting info here regarding changes to the heatsink on the 8800GT. If you compare to this image here . you will see some subtle changes to the reference heatsink. Mine has the newer larger fan. So maybe if you find a card with the older smaller fan you will be OK.
Click to expand...

I have the exact same card.
Mine is 42/2007 though and that's probably the diffrence.
 
you're lucky, a 128K chip

I know everyone wants to believe that there is some magic way to determine which ones got 64K and which ones got 128K EEPROMs.

In my experience it is merely luck of the draw and trying to associate ROM chip with PCB is like reading tea leaves

So, what kind of card is it? (Make & Model)

It appeas that it already has the EFI-64 880GT ROM, yes?

Do you still have the original ROM it came with?
 
The Rominator said:
you're lucky, a 128K chip

I know everyone wants to believe that there is some magic way to determine which ones got 64K and which ones got 128K EEPROMs.

In my experience it is merely luck of the draw and trying to associate ROM chip with PCB is like reading tea leaves

So, what kind of card is it? (Make & Model)

It appeas that it already has the EFI-64 880GT ROM, yes?

Do you still have the original ROM it came with?
Click to expand...

It doesn't have the EFI-64 ROM yet.
I'll flash it today and before that save the original ROM.
 
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