I can't understand why you wanna boot windows7 in bios mode, i dot not see the interest. Explain me...
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iM 4,1-14,4 2011 iMac Graphics Card Upgrade
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I had one of these on my 780m as well, I believe the package is called UDFN-8 (instead of SOIC-8 which you can use the clip on). Pinouts are the same.
For some reason NVflash was unable to write to the chip on my card, so I ended up desoldering the chip, and buying a PM SOIC-8 chip on eBay and soldered that on instead. Worked like a charm. 😊
I've also got a M5950 where @Nick [D]vB soldered a bigger EEPROM onto and installed his own modified BIOS.
That BIOS works perfectly with the exception of not providing temperature reading to the SMC, forcing the use of something like MacsFanControl.
Do you happen to know whether that is working with your BIOS?
mbr bios mode installation window7 windows10 sound card can work perfectly. Windows10 requires OpenCore DSDT to work with the sound card.
Which model is used for your m5950 vbios test. Can mbr bios window7 be started normally? I now use this test but the uefi windows10 sound card does not work.
OpenCore is not mandatory, you can patch DSDT inside windows10. See link posted above.
mbr bios installation windows10 windows7 does not need to repair the dsdt sound card can work perfectly
Thats what I did yesterday night.
Reformatted the whole drive and setupHigh Sierra „clean“.
High Sierra is now working again, no errors on the SSD anymore and a backup was available from 28.10 from my Time Machine. So everything cooled down in emotions 😅
Only those kernel panics during Catalina setup and in Catalina itself are driving me crazy!
Since the iMac panics several times even during installation, I assume the SSD gets corrupted here too right before the OS is completely installed 🙃
For the installed OS itself I followed every kext Update rule from post No. 1...
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I had these kernels panics on Catalina, after a few ones file system got corrupted beyond repair. At this time i had a 10TB HDD and a SSD inside the iMac. Get the HDD outside and using it as external drive resolved these kernel panics. My GPU setup on heatsink (WX7100) was not enough well done too and i had sometimes plain reboots without kernel panics in load. I had then to uninstall GPU and take extra care to redo my GPU install to have a better heat dissipation. After all that, no more reboots, no more kernel panics.
I installed Windows 10 burned to DVD, the sound worked from the first start without any edits.
Ok that sounds familiar
Except I only have an SSD and no extra HDD.
Currently my GPU and CPU have been "renewed" 2 days ago with MX4 paste and 1mm pads (the GPU).
Since the GPU Diode temp is fluctuating very high between 45-60 in idle, I guess the thermal solution with MX4+pads is not the best. I've set the heatsink temp between 38 and 60 at the moment and got kernel panics in Catalina (but NOT in High Sierra with the same settings).
From what I've read here, Grizzly Kryonaut and K5-Pro Vicsous are much better for GPU and CPU.
I've already ordered them, they should arrive tomorrow so I can try fixing this - and perhaps it helps for a more stable Catalina system.
What type of graphics card are you, uefi gpt windows10 or mbr bios windows10?
Yes, possibly because you did the classical DVD installation using standard (white listed) BootCamp while all others did the UEFI one - where sound is not working without a DSDT patch. This is well known for 2011 system - BTW take a look at the name go this thread...
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I'm not sure, as I don't have the card installed currently.
But I think it only worked with EFI booted Windows. And in the late 2009 iMac there's no problem with the sound in EFI booted Windows - that is known to affect the 2011 ones only.
Yes, in the iMac A1312 27 2011 i5 2400 installation test, only uefi windows10 can start and display normally, mbr bios installation windows7 windows10 has a startup interface when entering the system, the screen will be black and you can hear the sound of entering the system.
It beginns with the apple sound after power on, after at about 10 seconds, the boot loop begins, I can hear the apple sound again and the screen is allways plack.
So i guess, there are some cards with a special modification for Alienware..?? Maybe It is possible to find the right card with a product number
Read post #1 and the possible hardware problems you might face after such an operation. Bad installation, bad card. There is no known "incompatible" version of the K2100M. 100% of the cards reported here are Dell or HP spare parts. Of course you can be the first having a card with unknown memory and timing ... more probable you are the last in a longer becoming line of people with a hardware problem.
Greetings 🖐
Upgraded my iMac with i7 2,53 and K2100M, High Sierra 10.13.6 with last update (AFPS formatted)
Now I need to know what I'm missing to complete this upgrade because I didn't understand if I need to install patches, kext to get backlight control, temperatures of GPU, boot screen.
Also I would like to know the easy way to install Catalina, I've got Balenaetcher, OpenCore, Catalina Loader, macOS Catalina Patcher.
I've tried to install Catalina Patcher but always around 50% the screen goes black keeping the iMac on.
I know isn't easy if you don't have knowledge about but I wanna try at my risk anyway
Thanks to everyone ! 🙏
Upgraded my iMac with i7 2,53 and K2100M, High Sierra 10.13.6 with last update (AFPS formatted)
Now I need to know what I'm missing to complete this upgrade because I didn't understand if I need to install patches, kext to get backlight control, temperatures of GPU, boot screen.
Also I would like to know the easy way to install Catalina, I've got Balenaetcher, OpenCore, Catalina Loader, macOS Catalina Patcher.
I've tried to install Catalina Patcher but always around 50% the screen goes black keeping the iMac on.
I know isn't easy if you don't have knowledge about but I wanna try at my risk anyway
Thanks to everyone ! 🙏
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I used the second time Gelid CG extreme, it's equivalent to Grizzly Kryonaut in terms of heat conductivity, after using before MX4. there was a gain of maybe 8, 10 degrees, it's amazing. And obviously K5-pro on ram and VRM chips. You surely will have a good gain on temps.Ok that sounds familiar
Except I only have an SSD and no extra HDD.
Currently my GPU and CPU have been "renewed" 2 days ago with MX4 paste and 1mm pads (the GPU).
Since the GPU Diode temp is fluctuating very high between 45-60 in idle, I guess the thermal solution with MX4+pads is not the best. I've set the heatsink temp between 38 and 60 at the moment and got kernel panics in Catalina (but NOT in High Sierra with the same settings).
From what I've read here, Grizzly Kryonaut and K5-Pro Vicsous are much better for GPU and CPU.
I've already ordered them, they should arrive tomorrow so I can try fixing this - and perhaps it helps for a more stable Catalina system.
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?Greetings 🖐
Upgraded my iMac with i7 2,53 and K2100M, High Sierra 10.13.6 with last update (AFPS formatted)
Now I need to know what I'm missing to complete this upgrade because I didn't understand if I need to install patches, kext to get backlight control, temperatures of GPU, boot screen.
Also I would like to know the easy way to install Catalina, I've got Balenaetcher, OpenCore, Catalina Loader, macOS Catalina Patcher.
I've tried to install Catalina Patcher but always around 50% the screen goes black keeping the iMac on.
I know isn't easy if you don't have knowledge about but I wanna try at my risk anyway
Thanks to everyone ! 🙏
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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.
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Thanks for the update!
Today I tried installing Mojave on an external HDD (not SSD). Initially after first boot I had one sudden reboot, but then I installed the Kexts für Mojave 10.14.6 and it seems it is stable now... I haven't tested for too long now.
Regarding the GPU Heatsink temp, I have 44°C idle... is this too much?
😁 😁 😁 " 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 !!!
😬 😴 🙄