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

[Ausdauersportler]

Weel, just did it one more time. So, it answer just for #6. Yep, miss it some way..
But there are no full answers to the remaining questions. Spoon feeding, huh? I'm just open my mouth
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Thank you! But about #5: сan they be damaged by overheating?

Answer for #2 covers #6, too. The choice was made be trial and error. Smaller cards draw less power creating less heat... TDP is the magic acronym. Or was it TPD 😂
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Hello.Is non k quardo 2000m is working,and be bios flashable?Someone has tryed this?

Read post #1 - it is the how to page. K2000M works but please go with K1100M or K2100M.

On page #1 all cards are listed which have been tested. There are much more cards with Kepler GPU on the market, but likely not working and most important there is no BIOS available enabling boot screens and more.

 

[max86]

Sorry i wanted to ask i have quardo 2000m without k.

 

[Ausdauersportler]

Sorry i wanted to ask i have quardo 2000m without k.

Only Kepler GPU will be supported by the Apple drivers. The 2000M is a Fermi card, does not work.

 

[Marvin_B.]

Did you install the sleep kext mentioned on the first page of this thread? Lies dort noch einmal nach
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On your 2011 you need the Dosdude1 post install patches and the sleep kext mentioned on page #1, too. It is still a pity not having them in the Dosdude1 patcher included.

So it was a long day yesterday, because I needed to do a whole new clean install from a Catalina patcher Stick. So installed the preset Post Install Patches (No VGA Patch) and installed the Kexts. The Problem is, already when I was in the Installation process of the System, it just randomly crashes every few minutes + instant reboot. So now in the running System the crashes became less often, but still appear randomly. I hope you can help me, so I don't need to change the GPU back. I just added the crash report, which appears after the restart every Time.
Thankful Greetings Marvin

 

[Ausdauersportler]

So it was a long day yesterday, because I needed to do a whole new clean install from a Catalina patcher Stick. So installed the preset Post Install Patches (No VGA Patch) and installed the Kexts. The Problem is, already when I was in the Installation process of the System, it just randomly crashes every few minutes + instant reboot. So now in the running System the crashes became less often, but still appear randomly. I hope you can help me, so I don't need to change the GPU back. I just added the crash report, which appears after the restart every Time.
Thankful Greetings Marvin

Good morning (Guten Morgen)!

I do not want to point you in a different and wrong direction, but random crashes while installing make me thinking it is probably more a hardware related issue than a software problem.

The Absturzbericht does not speak to me, but honestly am not really aware it it's language. But the Nvidia Apple drivers are part of the story which make me believe the new GPU may be a part of it, too.

Where did you get the card from and how did you flash it?

Since you ripped off any single part except the fans and power supplies from the system you might have forgotten to check every single cable or component before closing it.

Another source of joy is the memory. AHT is gone but you can search the web for memtest86 and make yourself a Linux based boot stick and check your modules. Takes some time, but it is worth it.

Even checking if the modules are placed well or reseat them, too. I had to sort out a few modules when I did my GPU swap in 5 machines here. I had no dead or metastable card, so far. Fingers crossed!

 

[GPope]

is there a preference with either a quadro or GFX GPU?

 

[FlorisVN]

Good morning (Guten Morgen)!

I do not want to point you in a different and wrong direction, but random crashes while installing make me thinking it is probably more a hardware related issue than a software problem.

The Absturzbericht does not speak to me, but honestly am not really aware it it's language. But the Nvidia Apple drivers are part of the story which make me believe the new GPU may be a part of it, too.

Where did you get the card from and how did you flash it?

Since you ripped off any single part except the fans and power supplies from the system you might have forgotten to check every single cable or component before closing it.

Another source of joy is the memory. AHT is gone but you can search the web for memtest86 and make yourself a Linux based boot stick and check your modules. Takes some time, but it is worth it.

Even checking if the modules are placed well or reseat them, too. I had to sort out a few modules when I did my GPU swap in 5 machines here. I had no dead or metastable card, so far. Fingers crossed!

Apple ASD EFI test btw works fine, when flashed with nicks vbios !
Tested this myself..

 

[nathansz]

anyone have a link for asd 3s145?

much appreciated

 

[webdepp]

Hi folks
Thanks to this thread I got a GTX 780M with bootscreen working. Thanks for that!
Next step was to install the DyingLight module. Finally I had time to install the DL mod. I bought a 6pin pcie extension cable and cut the wire that goes to the inverter. This is the thicker yellow one that goes to the middle of the DL module.
Furthermore i tried to hock it up to the IR port, which I don't really need. I found schematics on the internet. So I ended up with green = GND / yellow = 5V / black = D+ / red = D- . Because the module can only handle 3.3V I used a Arduino Inverter 5V -> 3.3V.
Measuring the connections tells me everything's ok. I got 3.3V on the DL module and 3.3V coming from the PWM cable. But my screen is still black when I turn on the iMac. Is there anything wrong? Did I miss anything?
Thanks for your help

 

[FlorisVN]

Hi folks
Thanks to this thread I got a GTX 780M with bootscreen working. Thanks for that!
Next step was to install the DyingLight module. Finally I had time to install the DL mod. I bought a 6pin pcie extension cable and cut the wire that goes to the inverter. This is the thicker yellow one that goes to the middle of the DL module.
Furthermore i tried to hock it up to the IR port, which I don't really need. I found schematics on the internet. So I ended up with green = GND / yellow = 5V / black = D+ / red = D- . Because the module can only handle 3.3V I used a Arduino Inverter 5V -> 3.3V.
Measuring the connections tells me everything's ok. I got 3.3V on the DL module and 3.3V coming from the PWM cable. But my screen is still black when I turn on the iMac. Is there anything wrong? Did I miss anything?
Thanks for your help

Nicks EFI vbios is still in beta stage.
and currently there is still a delay time of about 5 seconds or more, when the EFI bootscreen appears.
Sometimes after a reboot it wont show bootscreen at all.

Just keep that in mind.
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anyone have a link for asd 3s145?

much appreciated

pm me.

 

[passatgt]

anyone have a link for asd 3s145?

much appreciated

Apple Service Diagnostics (2005-2013) :: RuTracker.org

Apple Service Diagnostics (2005-2013) » Системные программы (Mac OS) :: RuTracker.org

rutracker.org

 

[kazar]

hi guys i restored my old 2011 imac 21" (found in the street) with a Hp k2100m ( replaced back X support with Amd because holes were too small). i have a doubt in the older gpu there was thermal paste also on the memories but i don't think them touch the dissipator...should i install a thermal pad? see the picture

 

[passatgt]

hi guys i restored my old 2011 imac 21" (found in the street) with a Hp k2100m ( replaced back X support with Amd because holes were too small). i have a doubt in the older gpu there was thermal paste also on the memories but i don't think them touch the dissipator...should i install a thermal pad? see the picture

Check the first post

 

[xanderon]

we might need a better platform to talk or the first post need more love and updates… right @MichaelDT ?

its really hard to keep track of everything

 

[kazar]

thank you, i totally missed it. now i will check price.

 

[Lodge52]

Hi folks
Thanks to this thread I got a GTX 780M with bootscreen working. Thanks for that!
Next step was to install the DyingLight module. Finally I had time to install the DL mod. I bought a 6pin pcie extension cable and cut the wire that goes to the inverter. This is the thicker yellow one that goes to the middle of the DL module.
Furthermore i tried to hock it up to the IR port, which I don't really need. I found schematics on the internet. So I ended up with green = GND / yellow = 5V / black = D+ / red = D- . Because the module can only handle 3.3V I used a Arduino Inverter 5V -> 3.3V.
Measuring the connections tells me everything's ok. I got 3.3V on the DL module and 3.3V coming from the PWM cable. But my screen is still black when I turn on the iMac. Is there anything wrong? Did I miss anything?
Thanks for your help

Hi, can you tell me the name/size of the connector/plug you used on the IR port.

 

[vjson]

I have just installed a K2100M (not yet flashed) into my iMac 27 2011 and it runs High Sierra perfectly (no boot screen or brightness control obviously). Now I am trying to use the linux usb stick method to flash the gpu, and I followed the instructions in #4363, but can't seem to boot my iMac from the usb stick. The screen remains black (as it should), and after 20-30 seconds one of the fans start going full speed, but nothing more happens and I can't ssh into it (it's connected via ethernet). The usb stick boots just fine from my macbook pro, so I know that there's nothing wrong with the stick itself.

I have disconnected all SSD/HDD drives per the instructions. I _think_ I have found the ip that gets assigned to the iMac, and pinging it works occasionally but mostly not at all (very strange that it sometimes manages to ping). But ssh does not work at all. I either get a connection refused, or operation timeout.

Any ideas how I can troubleshoot this?

UPDATE: The random pinging behavior is the same when booting *without* the usb stick or any other drive plugged in too, which leads me to believe the usb stick is never actually booting the linux system when it's plugged in. I have tried holding down alt/option and blindly hitting enter in hopes of booting from it, but that has yielded no results either..

UPDATE 2: I copied the files from the usb stick to an external usb HDD, and the iMac successfully booted linux this time! And the flash tool seems to have worked as it should, yay! Thanks to all the amazing contributors and to all the posters in this thread, you have given my 9 year old computer new life!

 

[max86]

Hello I ordered quardo k2100m but maybe it has hp-s bios.Is it working in windows if I have previously installed win 10 @ iMac and booted from that?In windows I can flash Nicks bios.Thanks for answer.

 

[JessieComputes]

I have just finished a rather difficult upgrade to a k1100m card in a 2011 27 inch iMac. Initially I just got no graphics at all. Only 2 leds were lit up, so I was thinking I had been delivered a dud card. In desperation I connected an egpu and Windows SSD that I had working on another machine. This got me going. Device manager then reported a problem with the k1100m card that could not be fixed, and that it was disabled. So I went ahead and flashed the card. After a reboot, the third led lit up, and graphics are now working.

As an aside, I am not able to get stable 4k from a DisplayPort onto an external screen. This is using an active HDMI adapter and cable that does work with my retina iMac. Even at 30Hz, the signal quickly breaks up.

 

[jmilan0302]

hi guys i restored my old 2011 imac 21" (found in the street) with a Hp k2100m ( replaced back X support with Amd because holes were too small). i have a doubt in the older gpu there was thermal paste also on the memories but i don't think them touch the dissipator...should i install a thermal pad? see the pictureView attachment 895443

You destroyed that GPU by baking it, might aswell throw it away now.
But yes, you should put some thermal pad. The height is approximately 0.7mm so get some soft 1mm pads. There is also some "K5 Pro" paste that people here have recommended and it's very similar to what apple originally put.

 

[macguru9999]

If anyone just needs to repair their 2011 graphics due to the common failure., i would recommend removing the graphics card and heating the chip (only) to 350deg F for 5 minutes using a proper heat gun. The repairs seem to last for years, and there is no parts cost or compatibility issue. The failure is called by crystalline tin 'whiskers' shorting the solder balls under the chip. They grow over time. The heat gun will shrivel them up and restore function without reflowing the solder and causing a short, if you stick to 350F....

 

[kazar]

Check the first post

You destroyed that GPU by baking it, might aswell throw it away now.
But yes, you should put some thermal pad. The height is approximately 0.7mm so get some soft 1mm pads. There is also some "K5 Pro" paste that people here have recommended and it's very similar to what apple originally put.

I found the imac in the street . there was that amd gpu and probably someone tried bakery's experience😂

 

[cbosdell]

Just bought a 27" mid-2011 iMac (my first time owning an apple computer) and have already upgraded RAM/SSD. I'm wanting to upgrade the CPU and GPU next. Apologies if this is obvious but is there any way to get an ASUS branded 780M or 860M working? Only ask as they are a lot cheaper on eBay than the Dell/Alienware cards.

Or would something like this Dell K2100M be my cheapest bet? I'm wanting to upgrade to the latest macOS with the patcher and improve performance a little also. Thanks for any help!

https://www.ebay.com/itm/Dell-Preci...942?hash=item1f08a78ac6:g:eek:KEAAOSwNIFeCla-

 

[Ausdauersportler]

If anyone just needs to repair their 2011 graphics due to the common failure., i would recommend removing the graphics card and heating the chip (only) to 350deg F for 5 minutes using a proper heat gun. The repairs seem to last for years, and there is no parts cost or compatibility issue. The failure is called by crystalline tin 'whiskers' shorting the solder balls under the chip. They grow over time. The heat gun will shrivel them up and restore function without reflowing the solder and causing a short, if you stick to 350F....

https://madpsy.uk/the-nonsense-that-is-reballing-dead-gpus/

Thanks, but the guys here found are more sophisticated solution for a dead GPU, exchange it with a superior model. A baked ATI 5xxx or 6xxx will still not run Mojave or Catalina.

 

[ibanezbass]

Seems there's been a LOT of action on here since I last checked in. Just here to report that I've been running my 980M for almost a year now with almost no issues. I'm using UEFI Windows 10 (so that I can use my eGPU - Vega 56) with DSDT patches for audio, Dell 980M with my custom tuned vBIOS (have to use nvidiaInspector to set the clocks of P5 at boot or I get stuck at 500 mhz), and a DyingLight module to control the screen brightness (no backlight without it). I've got my 980M undervolted and overclocked to 1224 Mhz with a thermal throttle at 80 C. Long sessions of gaming normally pull the clocks down to 1100, which I hope to fix with a liquid cooling mod 😁