Nvidia K2100 Flash hardware

[Tomas Romero Juanson]

I Jumped into this armed with a little information. enough to be dangerous
I have the k2100m
27"Imac 2010
I have installed it and uninstalled it because I learned I needed to flash it
It sits a black screen now
I see the NVflasher for windows and the ROM and I have a windows desktop and laptop and a linux laptop at work
What U have not been able to find are the hard ware options for connecting the GPU to a device to flash it.
I randomly see pictures of various devices bit nothing stating what to get or where to get it.
Can someone help me locate that post or let me know what I need to comply
connect it and flash it

Thanks

 

[Glenn P Kaufman]

There is a boot loader flash drive to boot your iMac into that will allow you to SSH from windows machine to flash. You would plug in flash drive in iMac with GPU installed and all other drives unplugged. You will not have screen yet, but if you wait 1 minute you should be able to SSH from windows machine to iMac on booted Linux flash drive. Give me a sec, and I will find the link for you with instructions. You can download from the links in the PDF attached.

 

[Tomas Romero Juanson]

There is a boot loader flash drive to boot your iMac into that will allow you to SSH from windows machine to flash. You would plug in flash drive in iMac with GPU installed and all other drives unplugged. You will not have screen yet, but if you wait 1 minute you should be able to SSH from windows machine to iMac on booted Linux flash drive. Give me a sec, and I will find the link for you with instructions. You can download from the links in the PDF attached.

I really appreciate your response. And the file.

 

[Glenn P Kaufman]

I really apprexiate your response. And the file.

No problem. I have the same board coming to me this weekend. So was getting things ready myself. Good luck. Let me know how it goes. I did test it up to the point of flashing. So I can verify it works up to that point.

 

[Nguyen Duc Hieu]

Without flashing, your VGA card should still be recognized and get you to the desktop screen of OSX, unless your OSX version is too old and does not support it.

Or there were issues with the installation and the machine did not recognize the card. The 7 problems described in the below post does not list: "Black screen, not working" as one.

2011 iMac Graphics Card Upgrade

iMac 2009 to 2011 MXM3 graphics card upgrade (Lastest update 10/13/2023 - this is the official documentation page - you found it finally!) This is the single and only documentation post. During the last years we constantly updated this post to reflect the lastet development of vBIOS and OCLP...

forums.macrumors.com

 

[r6mile]

Without flashing, your VGA card should still be recognized and get you to the desktop screen of OSX, unless your OSX version is too old and does not support it.

I don't think that's true. Without flashing these GPUs won't display anything - I don't think it's like in a Mac Pro where you only miss the boot screen.

 

[Nguyen Duc Hieu]

I don't think that's true. Without flashing these GPUs won't display anything - I don't think it's like in a Mac Pro where you only miss the boot screen.

These guys seemed to got into the desktop screen without flashing the video card first. A different card (GTX765m) , though.

 

[Tomas Romero Juanson]

These guys seemed to got into the desktop screen without flashing the video card first. A different card (GTX765m) , though.

Maybe it was "pre-flashed"?
By all forum posts, the k2100m should be very much compatible with my 27" imac
The previous state was a niew recovery install of
High Sierrra but without safe mode booting it would fail everytime( kernel panic and reset and chime and kernel panic........)
When I replaced and booted I chimed and no restart so Im assuming it had no panics and the card needed the flash. I should have been a brand new card.
We will see, Im going to try the flash solution mentioned by Glenn

 

[Glenn P Kaufman]

Got mine in and flashed. Install to Big Sur Beta 5 went down tonight. So far, so good!

 

[Ausdauersportler]

Without flashing, your VGA card should still be recognized and get you to the desktop screen of OSX, unless your OSX version is too old and does not support it.

Or there were issues with the installation and the machine did not recognize the card. The 7 problems described in the below post does not list: "Black screen, not working" as one.

2011 iMac Graphics Card Upgrade

iMac 2009 to 2011 MXM3 graphics card upgrade (Lastest update 10/13/2023 - this is the official documentation page - you found it finally!) This is the single and only documentation post. During the last years we constantly updated this post to reflect the lastet development of vBIOS and OCLP...

forums.macrumors.com

This is an ridiculous interpretation:

Putting in any arbitrary unsupported MXM GPU into an iMac will not work and end up in a black screen. So this is the expected behaviour of a new unsupported card in an iMac. The is no need to write up the obvious!

In rare cases, i.e. using a Kepler based Nvidia card having the one working Dell BIOS installed, you might be lucky to get a working screen after the complete boot of the MacOS. I would estimate a 2% chance to see this.

 

[Glenn P Kaufman]

Maybe it was "pre-flashed"?
By all forum posts, the k2100m should be very much compatible with my 27" imac
The previous state was a niew recovery install of
High Sierrra but without safe mode booting it would fail everytime( kernel panic and reset and chime and kernel panic........)
When I replaced and booted I chimed and no restart so Im assuming it had no panics and the card needed the flash. I should have been a brand new card.
We will see, Im going to try the flash solution mentioned by Glenn

Any success yet Tomas? It was a bit of a pain, but let me know if I can help.

 

[Tomas Romero Juanson]

Any success yet Tomas? It was a bit of a pain, but let me know if I can help.

Working on it now. I had an xbox cdmi port to replace on the nephews machine but didn't know they used wave soldering which is almost impossible to remove lol
Im going to get started this afternoon