for the second time, location of the bios and name!
the instruction you use to flash letter by letter
the Card is Not Compatible neither with Real Macs nor Hackintoshs(Might be up to High Sierra).
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iM 4,1-14,4 2011 iMac Graphics Card Upgrade
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the Card is Not Compatible neither with Real Macs nor Hackintoshs(Might be up to High Sierra).
Yes, you are the first asking. Do you believe there would be no post if here somebody had tried this before...
That was my bad. I wasn't keen on reading up on 400+ pages of posts but I should've been more diligent. Good to know that the 3rd LED won't come on unless its flashed - I nearly had a heart attack when I didn't see it illuminate and it was getting super late. My step by step plan was more or less drafted out up to the point of flashing which is where I'm stuck at. Woke up this morning and tried to boot another computer using the said USB drive and it was missing some files (or so it seems). On my MacBook pro the error message shows:
error: no such devices: /conf/bootfile_grml64-small_1546178324
error: unknown file system
unknown command 'normal'.
E: Could not find root devices (for /conf/bootfile_grml64-small_1546178324)!
Entering rescue mode...
grub rescue>
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It's probably not properly formatted. Go back to the post, which explains how to prepare the USB flash drive. The devil is in the detail.
Wow! Check out this guy's price: https://www.ebay.ca/itm/NVIDIA-QUAD...431856?hash=item1f13752a70:g:KY8AAOSwFLpfFfXw
It is definitely worth it to flash on your own!!
It is definitely worth it to flash on your own!!
based on my understanding it was format the usb stick with GPT scheme and MacOS extended journaled and then copy file from the zip download over.
Scratching my head wondering why I can't get this to work...
GREAT NEWS! Got things all figured out after having a few extra coffees today to jolt the old brain.
WHAT A HUGE IMPROVEMENT! While it won't be like a modern mac that it at least brought our older macs into 2012/2013
thanks for the help!
Hi, thank you for this excellent guide!
I am so close to getting this to work, but I think I'm stuck on Step #17. As part of Step #16, I am able to see/select Catalina Loader as a boot item. Then I press CTRL+Enter. After that, I get this screen:
Then, I use my arrow key to get a > character next to 1. Macintosh HD.
I press CTRL+Enter again, and I get the Apple logo and loading bar. About half way through the loading bar, it stops and I get the dreaded "circle w/slash" icon.
I am trying to do this on my Late 2009 iMac 27", running the very latest High Sierra, with all official updates. Also, Catalina Loader does not show as an option for a Startup Disk in System Preferences. Not sure if this makes any difference.
Hi!
I'm running High Sierra with k2100m, and iGPU should be present according to this
But faced this issue suddenly:
Any help is appreciated
I'm running High Sierra with k2100m, and iGPU should be present according to this
But faced this issue suddenly:
Code:
Error loading /System/Library/Extensions/GeForceMTLDriver.bundle/Contents/MacOS/GeForceMTLDriver: dlopen(/System/Library/Extensions/GeForceMTLDriver.bundle/Contents/MacOS/GeForceMTLDriver, 265): no suitable image found. Did find:
/System/Library/Extensions/GeForceMTLDriver.bundle/Contents/MacOS/GeForceMTLDriver: mach-o, but wrong architecture
/System/Library/Extensions/GeForceMTLDriver.bundle/Contents/MacOS/GeForceMTLDriver: mach-o, but wrong architecture
GVA error: Not detecting IGPU in IORegistry!
GVA error: Not detecting valid offline codec!
GVA info: Successfully connected to the Intel plugin, offline Gen6Any help is appreciated
Does your computer boot without OpenCore?Hi, thank you for this excellent guide!
I am so close to getting this to work, but I think I'm stuck on Step #17. As part of Step #16, I am able to see/select Catalina Loader as a boot item. Then I press CTRL+Enter. After that, I get this screen:
Then, I use my arrow key to get a > character next to 1. Macintosh HD.
I press CTRL+Enter again, and I get the Apple logo and loading bar. About half way through the loading bar, it stops and I get the dreaded "circle w/slash" icon.
I am trying to do this on my Late 2009 iMac 27", running the very latest High Sierra, with all official updates. Also, Catalina Loader does not show as an option for a Startup Disk in System Preferences. Not sure if this makes any difference.
so after my successful video card upgrade I wanted to install open core to get back my brightness controls but before doing the OC install it said in the wiki to use the ROM Tool to backup the rom. I booted into recovery, disabled SIP and then used the ROM Tool to try to save my EFI Firmware info to an external drive and after I click "dump" on the tool that the computer hangs and then reboots. I presume that this is NOT normal behaviour and no files are being produced when I try using the tool. This occurs when running High Sierra. I do not intend to upgrade beyond High Sierra if that makes any difference when I install Open Core.
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@BertHiddink
There is no such card as a "GTX745M". The card that you have a picture of in your post is actually indeed a GTX765M, the GPU variant information is: N14E-GE-B-A1. There was only a GT 745M made which was part of a logic board installation.
@BeatCrazy
latest firmware for a imac 11,1 is : 63.0.0.0.0, update this first before you do anything; High Sierra Security Update 2020-004 released on 15 July 2020.
@MyM
The K3100M card you own is refurbished. Which is okay, but it is coupled with a bios chip:
EEPROM ID (7F,9D21) : PMC Pm25LD010 2.7-3.6V 1024Kx1S
It should have a:
EEPROM ID (C2,2012) : MX MX25L2005 2.7-3.6V 2048Kx1S
There is no such card as a "GTX745M". The card that you have a picture of in your post is actually indeed a GTX765M, the GPU variant information is: N14E-GE-B-A1. There was only a GT 745M made which was part of a logic board installation.
@BeatCrazy
latest firmware for a imac 11,1 is : 63.0.0.0.0, update this first before you do anything; High Sierra Security Update 2020-004 released on 15 July 2020.
@MyM
The K3100M card you own is refurbished. Which is okay, but it is coupled with a bios chip:
EEPROM ID (7F,9D21) : PMC Pm25LD010 2.7-3.6V 1024Kx1S
It should have a:
EEPROM ID (C2,2012) : MX MX25L2005 2.7-3.6V 2048Kx1S
Understood, but I already have High Sierra Security update 2020-005 from 10 Oct 2020
I'm going to try an older Combo update, and see if I can force my firmware to go higher.
Thanks
I had actually purchased a MX25L2006 before seeing your reply to see if that would help after reading a post on here about changing from a WSON to SOP8 bios chip, thankfully it'll be easier to desolder the one on there at the moment.
Is this worth pursuing with or should I give up now as @Ausdauersportler suggests? Can I program the blank bios chip through nvflash or do I need to program through clip.
@ZenSurfeur
Bios is extracted to 2011_imac_usb stick, flash folder, same folder as nvflash_linux
Commands run are as per readme in the flash folder
cd /lib/live/mount/medium/flash
./nvflash_linux --save ~/original.rom
./nvflash_linux --save ~/original_2nd.rom
diff ~/original.rom ~/original_2nd.rom
scp root@192.168.1.19:22/root/original.rom ~/Desktop
./nvflash_linux --protectoff
/nvflash_linux -6 K3100M_BR.rom
./nvflash_linux --verify
I can't even run the first command to save the existing rom which concerns me nor the flash commands but that is understandable with the size limitation, other commands obviously rely on those being run first, turning off protect confirms it's disabled and I had tried that as first command.
PM for price, shipping to Europe
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So I think my OpenCore failure is indeed/most likely due to my 11,1 iMac's older Boot ROM version (currently IM111.0039.B00).
Current version of High Sierra: 10.13.6 (17G14033)
I've re-installed the latest 2020-005 Security Update, twice. Still no luck
Current version of High Sierra: 10.13.6 (17G14033)
I've re-installed the latest 2020-005 Security Update, twice. Still no luck
Hello friends!
I have iMac 27 Mid 2011 (6970M)
There is also a GTX 870M 3Gb video card from MSi (I flashed the BIOS from the table in the first post)
As a result, I got a working boot screen, but the system boot hangs about in the middle.
Please help me figure it out. I can't figure out what the problem is. High Sierra installed with all updates
I have iMac 27 Mid 2011 (6970M)
There is also a GTX 870M 3Gb video card from MSi (I flashed the BIOS from the table in the first post)
As a result, I got a working boot screen, but the system boot hangs about in the middle.
Please help me figure it out. I can't figure out what the problem is. High Sierra installed with all updates
I have exactly the same video card with the same problem. reset PRAM and SMC. nothing helps. on High Sierra, it freezes at half load. somehow I installed windows 7, the driver is not installed on the video card, when loading it writes that there is no suitable video card in the MXM slot. Card with MSi with firmware from the first post. Ask for help
