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iM 4,1-14,4 2011 iMac Graphics Card Upgrade

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Pacific1972 said:
😁 😁 😁 " reaction received !" 😁 😁 😁

I think if looking at price & frame rates of such "High-End" MXM cards, people should buy a used
Playstation or got a used 150$ Intel PC machine with compareable PCI Video Card to run games.

For professional users which make video editing or other strange Apps and need CPU & GPU power,
most of them invest the money in actual hardware if run primary WIN10, MacOS or Linux.

- if I want to buy a defected 27" iMac from 2011, it cost me sometimes luckily about 150€
- if I want a GTX880M it cost at least 250€ on ebay - means 400€ together without SSD or RAM...
- with SSD, RAM, Magic Mouse and Apple Keyboard you can easily pay more than 500€

... and what you can buy today with 500€ I don't think to told you. I don't believe that most users
have an acceptable cost / value / usability factor to put an 8GB video card in such a 1st generation
Intel Core iMac, and there are really lot of defected 2010 / 2011 on the second hand market -

😄 the bottle neck is no wonder...

But perhaps most of these users are idiots which cannot exchange a video card, have never heard
about KEXTs, don't read computer magazines and only consuming Apps, Games, Netflix and Youtube
- about single based web sites, instagram and facebook which often offers real ****y content I don't
want to talk anymore...

Of course results are interesting but putting a race motor in a family car is also unmoderate because
other components must fit both. If there is no practical use in Apps & games, it's not worth it...

The same case is the actual price for Raspberry Pi if make experience with various Linux OS.
A used PC (with SATA and USB 3.0) is often cheaper, have more power and is often more useful
for eLearning, Home Office / Home Schooling - but of course you can use RPI for home automation.

The originally RPI was a "cheap" platform for developing in Third-World-countries, but there is almost
nothing cheap anymore. RPI 4 + Power Supply + Keyboard + Mouse + Monitor Full HD costs often
more than 200€, often same as for used old iMac !!!

😬 😴 🙄
Click to expand...

Most things you wrote above are of zero importance when in comes to a single application only available on MacOS. And you will not believe this, there are a lot. Yesterday I had a musician coming in with a thunderbolt/firewire connected very special mic. Of course - I know - you will make it work at your playstation, too. Unfortunately not the special equaliser software coming with it.

So I agree again, some people here (possibly we see only the ones complaining about problems) do not know how to install properly a video card and they do not know how to handle the MacOS (which is a UNIX, basically, surprise, surprise!).

And of course we can always buy some new industrial waste for cheap 500 Euro, unfortunately in a limited world with limited resources facing the biggest change in history coming up it is a *stupid* idea to buy new things just because they are cheap...

The basic idea here is to use existing products as long as possible (making them sustainable).

Putting a small 2GB AMD card into a 2009/2010/2011 makes it a small FCPX workstation ....

P.S.:
Just installing the latest Beta 11.02 on my 27" late 2009 lab system having a small 2GB NVIDIA card. Will this run in a Playstation or Pi, too?
 
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Ausdauersportler said:
Most things you wrote above are of zero importance when in comes to a single application only available on MacOS. And you will not believe this, there are a lot. Yesterday I had a musician coming in with a thunderbolt/firewire connected very special mic. Of course - I know - you will make it work at your playstation, too. Unfortunately not the special equaliser software coming with it.

So I agree again, some people here (possibly we see only the ones complaining about problems) do not know how to install properly a video card and they do not know how to handle the MacOS (which is a UNIX, basically, surprise, surprise!).

And of course we can always buy some new industrial waste for cheap 500 Euro, unfortunately in a limited world with limited resources facing the biggest change in history coming up it is a *stupid* idea to buy new things just because they are cheap...

The basic idea here is to use existing products as long as possible (making them sustainable).

Putting a small 2GB AMD card into a 2009/2010/2011 makes it a small FCPX workstation ....

P.S.:
Just installing the latest Beta 11.02 on my 27" late 2009 lab system having a small 2GB NVIDIA card. Will this run in a Playstation or Pi, too?
Click to expand...

Ausdauersportler said:
Most things you wrote above are of zero importance when in comes to a single application only available on MacOS. And you will not believe this, there are a lot. Yesterday I had a musician coming in with a thunderbolt/firewire connected very special mic. Of course - I know - you will make it work at your playstation, too. Unfortunately not the special equaliser software coming with it.

So I agree again, some people here (possibly we see only the ones complaining about problems) do not know how to install properly a video card and they do not know how to handle the MacOS (which is a UNIX, basically, surprise, surprise!).

And of course we can always buy some new industrial waste for cheap 500 Euro, unfortunately in a limited world with limited resources facing the biggest change in history coming up it is a *stupid* idea to buy new things just because they are cheap...

The basic idea here is to use existing products as long as possible (making them sustainable).

Putting a small 2GB AMD card into a 2009/2010/2011 makes it a small FCPX workstation ....

P.S.:
Just installing the latest Beta 11.02 on my 27" late 2009 lab system having a small 2GB NVIDIA card. Will this run in a Playstation or Pi, too?
Click to expand...

I think the most valuable thing from this, is what You stated about being sustainable.... I hate to talk about waste and climatic change,because we are talking about how f***** we are, and what options we have to delay the disaster. And unfortunately, electromics waste is one of the problems...
Also, i love yo save some thousands on a device and being able to use the latest software .
 
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Pacific1972 said:
😁 😁 😁 " reaction received !" 😁 😁 😁

I think if looking at price & frame rates of such "High-End" MXM cards, people should buy a used
Playstation or got a used 150$ Intel PC machine with compareable PCI Video Card to run games.

For professional users which make video editing or other strange Apps and need CPU & GPU power,
most of them invest the money in actual hardware if run primary WIN10, MacOS or Linux.

- if I want to buy a defected 27" iMac from 2011, it cost me sometimes luckily about 150€
- if I want a GTX880M it cost at least 250€ on ebay - means 400€ together without SSD or RAM...
- with SSD, RAM, Magic Mouse and Apple Keyboard you can easily pay more than 500€

... and what you can buy today with 500€ I don't think to told you. I don't believe that most users
have an acceptable cost / value / usability factor to put an 8GB video card in such a 1st generation
Intel Core iMac, and there are really lot of defected 2010 / 2011 on the second hand market -

😄 the bottle neck is no wonder...

But perhaps most of these users are idiots which cannot exchange a video card, have never heard
about KEXTs, don't read computer magazines and only consuming Apps, Games, Netflix and Youtube
- about single based web sites, instagram and facebook which often offers real ****y content I don't
want to talk anymore...

Of course results are interesting but putting a race motor in a family car is also unmoderate because
other components must fit both. If there is no practical use in Apps & games, it's not worth it...

The same case is the actual price for Raspberry Pi if make experience with various Linux OS.
A used PC (with SATA and USB 3.0) is often cheaper, have more power and is often more useful
for eLearning, Home Office / Home Schooling - but of course you can use RPI for home automation.

The originally RPI was a "cheap" platform for developing in Third-World-countries, but there is almost
nothing cheap anymore. RPI 4 + Power Supply + Keyboard + Mouse + Monitor Full HD costs often
more than 200€, often same as for used old iMac !!!

😬 😴 🙄
Click to expand...
What can i say... we are living in a marketplace my friend. But our soul will guide us on the the right path. I hope so.
 
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I did the parts price list checking myself when buying my 27" iMac.
Its value (to me) is derived mostly from the dedicated LCD.
A second-hand 27" 2K LCD cost about 200$ around here.
So I guess the $300 I paid for the iMac is justifiable.
Jaming in an extra $200 to make it running smooth both High Sierra & Windows 10 is just hobby.
 
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Nick [D]vB said:
It seems St. Nick is running a few days late this year, 🎅
or maybe a few weeks early, depending on where you live…

Quadro roms attached, for the following cards:

K1000M, K1100M, K2000M, & K2100M

They all have CoreEG2 integrated so no boot-rom mod required.
The clocks should also be unlocked in windows (not P5 limited)
and they have a moderate over-clock which should be stable.

Thanks to @highvoltage12v for running the K2X stability tests,
so if your iMac crashes, for any reason, it’s totally his fault ! ;)

I have native brightness control & Target Display Mode working
so far only on the two newer cards (K1100M & K2100M)

At the moment this will require using the OpenCore boot-loader
to do some ACPI injection, and maybe load some additional Kexts.

I’m working on a plug-n-play version that runs from a USB stick,
but there are still some things to fix so that may be a few weeks out.


Not forgetting the red team…

I worked out what was limiting the boost clocks in MacOS,
these Beta3 roms should now be completely un-limited.

I’ve also included an over-clocked version - but be careful,
it will produce a lot more heat so make sure you crank the fans up!

I’m still working on a fix for that code 43 driver issue in Windows,
and hoping we can use OpenCore to work-around the problem,
as it can also be used to enable “iMacPro” HEVC encoding for FCPX etc.

The boot-rom mod is still required for AMD, probably always will be,
It’s included here but there are no changes so no need to re-apply it.



UPDATE for K1100M !

Well this is embarrassing... turns out I'm an idiot! :rolleyes:
I accidentally uploaded the wrong file for the K1100M
If you downloaded the previous version do not flash it.
No other cards effected, I have updated the download.


🎅
Click to expand...
HI. just bought a K1000M from HP 857o and i've flashed correctly using ch341A. Card is not detected by imac . why this? i used Quadro Beta 1.2. best regards
 
robleu said:
HI. just bought a K1000M from HP 857o and i've flashed correctly using ch341A. Card is not detected by imac . why this? i used Quadro Beta 1.2. best regards
Click to expand...
Another broken card? Being able to flash it does not mean it will switch into graphics mode with MacOS. Did you use the correct K1000M bios? Can you see the status LED?
 
Ausdauersportler said:
Another broken card? Being able to flash it does not mean it will switch into graphics mode with MacOS. Did you use the correct K1000M bios? Can you see the status LED?
Click to expand...
I used the file in the zip package. correctly flashed. on imac board only the first led
 
robleu said:
I used the file in the zip package. correctly flashed. on imac board only the first led
Click to expand...
Then it is most likely dead!

And - I have to do this - all this has been described on page #1 in post #1. There is a link to common hardware problem. This became a thread of dead gpu posts - which is IMHO off topic. Since only you can check the hardware it is up to you to solve this. Nobody can patch a hardware problem away...although some users believe so.
 
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nikey22 said:
** NVIDIA Quadro K3100M Mac Edition ROM **
Genuine Native Boot Screen & Brightness Control​


View attachment 942193


Requirements:
iMac12,2 (27-inch Mid 2011) Mac-942B59F58194171B (Tested machine)
BootROM: 87.0.0.0. Please use High Sierra to update your BootROM to latest version.

GPU Variant: N15E-Q1-A2
Dell K3100M vbios: 80.04.B0.00.0A
HP K3100M vbios: 80.04.CD.00.0A. PN: 744354-001

This ROM does not require a 3rd party bootloader like OpenCore.
This ROM is build on the same principles as my K4100M. Unfortunately, the color-pixel bug is still present. But I am working on it. The brightness will need to be adjusted via a kext as previous. I have a feeling that the native brightness dimness is also inline with the same generic driver bug previously mentioned. The rom has a modest clock table boost as well.

Brightness Control Stepping Modifcation:
-Turn computer on, hold down Command(⌘)-R
-Choose Utilities > Terminal
-Enter:csrutil disable
-Reboot
-Download and open 'Kext Utility v2.6.6'

-Navigate to S/L/E (System/Library/Extensions)
-Copy "AppleBacklight.kext" to Desktop
-Edit: AppleBacklight.kext/Contents/Info.plist
-Scroll down to: IOKitPersonalities > AppleIntelPanelA > ApplePanels
-There you find several Apple LCD profiles.
-For the iMac 2011 27" machine locate:
<key>F10Ta007</key> <data> ABEABgALABQAHAAnADMAPwBOAFwAZwBzAIEAkQClAL8A 2wD/ </data>

-Change the <data> section to:
ABEAAgA3AF8AigCzAOsBJAFnAakB1AIJAlQCogL4A00DlgRpBGk=

-Drag your modded kext into Kext Utility, allow it correct permissions
-Applebacklight.kext.bak folder will be created
-Reboot

The above data pattern will allow for a wider span of steppings for the brightness control and utilizes more of the capacity of the HD3000. If you have a different machine, your panel ID can be found by going to System Preferences > Displays > Color > Open Profile > mmod

warning: please remember this is a WSON based card. You will be unable to recover from a bad flash with clip.



View attachment 939736 View attachment 939740

"insanely great!"
-Steve Jobs

**update**
10-4-2020 working on Catalina 10.15.7, HP PN:744354-001 @GButorin
08-4-2020 working on Sierra 10.12.6 @Ausdauersportler
Click to expand...

Great job! My imac is alive again.
Flashed GPU ROM in Linux LMDE4 environment using NVFlash.
Brightness control works great without any modifications.
Thanks a lot

mymac_no.png

screen2.png
 
Last edited:
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nikey22 said:
** NVIDIA Quadro K3100M Mac Edition ROM **
Genuine Native Boot Screen & Brightness Control​


View attachment 942193


Requirements:
iMac12,2 (27-inch Mid 2011) Mac-942B59F58194171B (Tested machine)
BootROM: 87.0.0.0. Please use High Sierra to update your BootROM to latest version.

GPU Variant: N15E-Q1-A2
Dell K3100M vbios: 80.04.B0.00.0A
HP K3100M vbios: 80.04.CD.00.0A. PN: 744354-001

This ROM does not require a 3rd party bootloader like OpenCore.
This ROM is build on the same principles as my K4100M. Unfortunately, the color-pixel bug is still present. But I am working on it. The brightness will need to be adjusted via a kext as previous. I have a feeling that the native brightness dimness is also inline with the same generic driver bug previously mentioned. The rom has a modest clock table boost as well.

Brightness Control Stepping Modifcation:
-Turn computer on, hold down Command(⌘)-R
-Choose Utilities > Terminal
-Enter:csrutil disable
-Reboot
-Download and open 'Kext Utility v2.6.6'

-Navigate to S/L/E (System/Library/Extensions)
-Copy "AppleBacklight.kext" to Desktop
-Edit: AppleBacklight.kext/Contents/Info.plist
-Scroll down to: IOKitPersonalities > AppleIntelPanelA > ApplePanels
-There you find several Apple LCD profiles.
-For the iMac 2011 27" machine locate:
<key>F10Ta007</key> <data> ABEABgALABQAHAAnADMAPwBOAFwAZwBzAIEAkQClAL8A 2wD/ </data>

-Change the <data> section to:
ABEAAgA3AF8AigCzAOsBJAFnAakB1AIJAlQCogL4A00DlgRpBGk=

-Drag your modded kext into Kext Utility, allow it correct permissions
-Applebacklight.kext.bak folder will be created
-Reboot

The above data pattern will allow for a wider span of steppings for the brightness control and utilizes more of the capacity of the HD3000. If you have a different machine, your panel ID can be found by going to System Preferences > Displays > Color > Open Profile > mmod

warning: please remember this is a WSON based card. You will be unable to recover from a bad flash with clip.



View attachment 939736 View attachment 939740

"insanely great!"
-Steve Jobs

**update**
10-4-2020 working on Catalina 10.15.7, HP PN:744354-001 @GButorin
08-4-2020 working on Sierra 10.12.6 @Ausdauersportler
Click to expand...
Hi. I'm new in Mac world. I just upgraded my gpu with quadro k3100. I followed the steps by flashing the gpu . Everything is working like it should except one thing: when I turn on the computer the only thing I can hear is the fan for 2 sec. If I live it for a couple of hours it turns on. I reset pram, I disconnected from power , reset smc,nothing happen. My iMac is mid 2011. Forgot to mention that I've made an upgrade to pcu as well(i7 3,4 ghz)....When is on,everything is working like it should. Any ideas?
 
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Cristi1978 said:
Hi. I'm new in Mac world. I just upgraded my gpu with quadro k3100. I followed the steps by flashing the gpu . Everything is working like it should except one thing: when I turn on the computer the only thing I can hear is the fan for 2 sec. If I live it for a couple of hours it turns on. I reset pram, I disconnected from power , reset smc,nothing happen. My iMac is mid 2011. Forgot to mention that I've made an upgrade to pcu as well(i7 3,4 ghz)....When is on,everything is working like it should. Any ideas?
Click to expand...
No solution for your problem.

Normally the K3100M should work in any of the listed 27" systems. We have a bunch of cards known to cause exactly this problem (mostly AMD cards in 2011 systems) but I have never heard until now that the system switches on hours after pressing the power button without another user intervention.

All such problematic cards let the fans quarter spin (what you describe as 2s of fan spinning) on pressing the power button and then nothing happens. And this is an iMac 2011 problem, only.

The only thing I would do is:

Pull out the card, restart the system without the card and zap the PRAM three times and put the card in, again. Give it a new try then. I know, a lot of work.
 
Last edited:
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Ausdauersportler said:
Most things you wrote above are of zero importance when in comes to a single application only available on MacOS. And you will not believe this, there are a lot. Yesterday I had a musician coming in with a thunderbolt/firewire connected very special mic. Of course - I know - you will make it work at your playstation, too. Unfortunately not the special equaliser software coming with it.

So I agree again, some people here (possibly we see only the ones complaining about problems) do not know how to install properly a video card and they do not know how to handle the MacOS (which is a UNIX, basically, surprise, surprise!).

And of course we can always buy some new industrial waste for cheap 500 Euro, unfortunately in a limited world with limited resources facing the biggest change in history coming up it is a *stupid* idea to buy new things just because they are cheap...

The basic idea here is to use existing products as long as possible (making them sustainable).

Putting a small 2GB AMD card into a 2009/2010/2011 makes it a small FCPX workstation ....

P.S.:
Just installing the latest Beta 11.02 on my 27" late 2009 lab system having a small 2GB NVIDIA card. Will this run in a Playstation or Pi, too?
Click to expand...


Thank you for your answer, I've expected this (with a smile)... ;)
 
Last edited:
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Slightly off-topic, sorry: i found a 24" A1200 iMac. The GPU is definitely broken. Any ideas what replacement should i get, if upgrade is possible at all?
 
passatgt said:
Slightly off-topic, sorry: i found a 24" A1200 iMac. The GPU is definitely broken. Any ideas what replacement should i get, if upgrade is possible at all?
Click to expand...

www.ebay.com

2006 Apple 24" iMac A1200 Video Card NVIDIA GeForce 7600 GT 256mb 661-4180 (w24v for sale online | eBay

Find many great new & used options and get the best deals for 2006 Apple 24" iMac A1200 Video Card NVIDIA GeForce 7600 GT 256mb 661-4180 (w24v at the best online prices at eBay! Free shipping for many products!
www.ebay.com www.ebay.com
 
Ausdauersportler said:
No solution for your problem.

Normally the K3100M should work in any of the listed 27" systems. We have a bunch of cards known to cause exactly this problem (mostly AMD cards in 2011 systems) but I have never heard until now that the system switches on hours after pressing the power button without another user intervention.

All such problematic cards let the fans quarter spin (what you describe as 2s of fan spinning) on pressing the power button and then nothing happens. And this is an iMac 2011 problem, only.

The only thing I would do is:

Pull out the card, restart the system without the card and zap the PRAM three times and put the card in, again. Give it a new try then. I know, a lot of work.
Click to expand...
Thank you for your reply. I think I didn't explained properly ( sorry for my bad english). So, when I turn it on, I hear the fan noise for 2 seconds, if I leave it for 2-3 hours and I try again turn it on, it's starting properly. If I turn it on in the morning and power off , when I come in the evening and turn it on again, it starts normally. If I shut down and try to turn it on after a few seconds it won't start. If I restart it from menu, no problem, only when I shut it down and try to turn it on from the button in short time.....
 
All users of K610M NVIDIA cards:

Please let this command /usr/sbin/ioreg -l | grep NVArch run in your Terminal app and post result back only if it is different adding your specific card.

The 780M returns:

Code: 
me@iMac  % /usr/sbin/ioreg -l | grep NVArch
    | |   |   | |   "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | | |   "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})
    | |   |   |       "NVArch" = "GK100"
me@iMac  %

Thanks in advance!
 
Last edited:
Ausdauersportler said:
All users of NVIDIA cards:

Please let this command /usr/sbin/ioreg -l | grep NVArch run in your Terminal app and post results adding your specific card.

The 780M returns:

Code: 
me@iMac  % /usr/sbin/ioreg -l | grep NVArch
    | |   |   | |   "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | | |   "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})
    | |   |   |       "NVArch" = "GK100"
me@iMac  %

Thanks in advance!
Click to expand...
K1100M

Code: 
    | |   |   | |   "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | | |   "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})
    | |   |   |       "NVArch" = "GK100"
 
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K1100M:

Bash: 
edhartouni@Eds-iMac ~ % /usr/sbin/ioreg -l | grep NVArch
    | |   |   | |   "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | | |   "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})
    | |   |   |       "NVArch" = "GK100"
 
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Ausdauersportler said:
All users of NVIDIA cards:

Please let this command /usr/sbin/ioreg -l | grep NVArch run in your Terminal app and post results adding your specific card.

The 780M returns:

Code: 
me@iMac  % /usr/sbin/ioreg -l | grep NVArch
    | |   |   | |   "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | |     "NVArch" = "GK100"
    | |   |   | | |   "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})
    | |   |   |       "NVArch" = "GK100"
me@iMac  %

Thanks in advance!
Click to expand...

K2100M

/usr/sbin/ioreg -l | grep NVArch


| | | | | "NVArch" = "GK100"


| | | | | "NVArch" = "GK100"


| | | | | "NVArch" = "GK100"


| | | | | | "IOPropertyMatch" = ({"NVArch"="GF100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"},{"NVArch"="GK100","nubType"="NVDAgl","unmatched"="yes","NVDAType"="Official"})


| | | | "NVArch" = "GK100"
 
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Pascal Baillargeau said:
GPU heatsink temp seems too high, is it in load or in idle? ODD, HDD fan speed should stay around 1300 in idle. You should configure Mac Fans Control accordingly. What pasta did you use between GPU and heatsink?
Maybe, if screen goes black at a time you should investigate on the backlight board health. You have no control on backlight for now, and LCD and backlight board are at full power. This generate heat. You could try to use your patched Catalina installer beginning with a cold computer, you will have the best chances to go to the end of the installation process.
Click to expand...
Paste used K4 pro and K5 pro
The ODD fan is not installed at moment
Today I've tried 2 times with macOS Catalina patcher to install on external USB HD (AFPS)
Same as internal HD, around 50% black screen.
Logs on attached files
 
brkr1 said:
Anybody?
Click to expand...
the image gets mounted like a usual disk (double click it)
go to the "disk" and edit the folder/files/whatever

you can put your target media into the target media port (USB,SD,...) format it appropriately and restore the disk image to the new media...

then you can use that media as a boot target

I think this is macOS 101, no?
 
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