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Flash the 4850 !!!

what if u remove applegw.kext and natit.kext ?

new motmot is pointless for 4850, changed nothing for me.

btw, Motmot has known problems with ram speeds, when it tries to change memory speed, it is not going well (more info here - http://netkas.org/?p=85)

try to edit the rom with RBE application and set same memory clocks for every mode there (on second tab), RBE - http://www.techpowerup.com/rbe/
 
netkas said:
what if u remove applegw.kext and natit.kext ?

new motmot is pointless for 4850, changed nothing for me.
Click to expand...

Progress...sorta?

Removed them and booted as before...No More Power Warnings !!!

However...still no QE and CI.

I realized I have Developer Tools on this one.

I have attached the IOReg Report, I think.

Let me know if you need something else.
 

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ATIRadeonX2000.kext, which is responsable for QE/CI/opengl will not work if aux-power-connected = 0.
 
Is this a test we can disable in the kext itself?

I just looked and I saw where it polls a sensor, but I am guessing that is a temp onne....not a yes/no switch
 
natit was changing this var to 1, so, looks like x2000.kext has problems with your 4850, what bios pipomolo used to make a rom for u ?
 
Using a 4850 to SEE THE FUTURE

netkas said:
natit was changing this var to 1, so, looks like x2000.kext has problems with your 4850, what bios pipomolo used to make a rom for u ?
Click to expand...

I'm pretty sure that he used the one the card came with. Card functions just fine in Windows.

I understand that Natit changes the Power COnnected variable to 1...I am just guessing that something else actually polls location of second connection on 4870...which doesn't exist on 4850...and writes in a "0". This happens AFTER the Natit.kext writes in the "1"

Ideally we would find where this polling is being done...say in 2000.kext and simply remove the line it is in.

On a side note...I have found a great use for my not 100% functional 4850.

As long as it is in slot 2, any 4870 placed in slot one will boot just fine in OSX...ie, the EFI loads off the 4850 and allows testing the 4870 BEFORE writing the custom BIOS.

Fer instance...I have a Diamond 4870 1 Gig I bought at Fry's....if I place it in slot 1 next to the 4850 in slot 2 (with no power connected...since it isn't expecting or using much)

The DIamond boots up in OSX just fine. I connect second display to 4870 and it acts VERY unhappy. Within seconds it shuts off and reboots. After I craft and flash the ROM via Pipolomo42's superb scripts, I get exactly the SAME BEHAVIOR.

So having the 4850 is letting me see the END result of ROM flash, before I even build the ROM.
 
Partial Success !!!

With an EFI ROM from Pipolomo42's method, and Netkas' new Natit & ATI fix...I finally have a working 4850 !!!

Sadly, it still needs the DVI to VGA adapter...but now CI and QE are working.

And it's OpenGL viewer scores tell the tale of a powerful card.

(Beats the 4870x2 with current state of affairs)

Getting closer.

(There is an odd Mouse stutter too)
 

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Awesome work!

Just a note for you on the power connector issue. If there really was a power issue and the card was bad, it has an led on it that would light to signal the problem.
 
I was wondering with Snow Leopard will the 4850 run natively or do you need to flash it? I'm still using Leopard and have a 4850 lying around, I find it is too noisy to leave in OS X but is fine in Boot Camp when I am playing games in Windows, but I spend more time in OS X and I would prefer a quiet solution.
 
Is anybody still following this thread? I don't wanna return my 4850 but won't have a choice in a few weeks... this card would be so much better than my GeForce 7300.

:confused:
 
Cindori said:
you can use netkas injectors.
download my tool in sig
Click to expand...

Do you think i could have my Sapphire HD 4850 Toxic running on my Mac Pro 1,1 with Leo 15.5.8 ?

My english isn't perfect so i didn't understand the whole conversation between netkas and The Rominator, so could you please help me ?
 
Cindori said:
you can use netkas injectors.
download my tool in sig
Click to expand...

Hi, I have a Mac Pro 1.1, and just picked up a XFS 4850 1gig the other day. I was looking arround for a 4870/90 but got the 50 for a good price.

I'm on snow leopard, and on Vista x64 in boot camp.

If I'm following the threads correctly, to my understanding, I just load up the card and the originla card goes in the 2nd slot. then I run the ATI tool to use the injector. then I can remove the old card (atix1900xl) and run with just the 4850.

Some of the links say that they now have both DVI running, some say you require the DVI2VGA addapter and run switchres to change resolitions.

Can there be an update on this?

Maybe a single post by one of the Rom Gods that puts all the info in a single post. Having up to date links to the tools would also be great :)
 
hubchau said:
Do you think i could have my Sapphire HD 4850 Toxic running on my Mac Pro 1,1 with Leo 15.5.8 ?

My english isn't perfect so i didn't understand the whole conversation between netkas and The Rominator, so could you please help me ?
Click to expand...

Is anyone still monitoring this thread? I'm curious what the current status of the 4850's is since I can not find 4870 or 4890 cards locally (and I really want to buy a card for this locally). 4850's seem to be around though.

The first step of the first post was 'solder on...' so if that's the case, that's not gonna work for me as I can't solder.
 
I would pass on the 4850.

I just tried it again, wrote a ROM using device id of 4870. Card ran better but still has many issues. Don't know if we will ever have a solid running 4850 in OSX.

And YES, it does require soldering.
 
Anybody home here, 4850?????????

Is there anyone still posting about the 4850's, last post in '09
 
Hey there, does anyone know where to find instructions on flashing the ATI HD 4780 1GB DDR3 PCIe card to work with EFI? I keep finding ROMs for the 512k version and sketchy instruction for extracting a pkg file using Pacifist. I am not comfortable with the other sets of instructions. I know they are probably on the web somewhere but I have not been able to find them. Any support would be appreciated.
 
there are files for the 1 gig 4870's go to the race to dump the 4870 rom thread and do some digging. everything you need to know is there trust me thats where i found a rom for my card good luck
Dave
 
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