Ausdauersportler
macrumors 603
But this makes it fast and easy! If you do not get a post everything is clear and we have a second proof. If not, @jborko had just bad luck...
Fingers crossed!
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iM 4,1-14,4 2011 iMac Graphics Card Upgrade
- Thread starter MichaelDT
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Fingers crossed!
I will try but I'm totally new to this stuff so correct me if I'm wrong:
1.Firstly i need to install Win10 in legacy mode, for example from DVD.[Done]
2.Then i install something like teamviewer or connect via ssh to Windows with GPU already inside.
3.Then i flash GOP vBIOS from HERE and after flashing it in Windows I implement OpenCore from the MacOS.
Also I knew I already seen it, isn't this also a 109-C95847-00C_02:
If it's possible maybe @Ooze will hint us on what we do wrong that our card doesn't work but he somehow managed to run it.
Ausdauersportler
macrumors 603
Ask him! I am not entirely sure if our card was as just a bad one and yours may work. According to another post your model could be fine. Currently nobody can say for sure and we all want to know! Go ahead and follow the guides on page one. Since atiflash currently is needing a Windows (I did not make it work on the Linux USB stick) use the boot image or better your Win installation.
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Thanks! @Ausdauersportler I've tried target display mode on HS but i could not make it work. I installed HS 10.13.6 and boot up with OpenCore that @Nick [D]vB posted here and then i applied your config; but not luck. Maybe, Am i doing something wrong?
Ausdauersportler
macrumors 603
Hi!Thanks! @Ausdauersportler I've tried target display mode on HS but i could not make it work. I installed HS 10.13.6 and boot up with OpenCore that @Nick [D]vB posted here and then i applied your config; but not luck. Maybe, Am i doing something wrong?
I cannot keep track of this, why are you using OpenCore with this card? And to my knowledge TDM was limited to the K1100M and K2100M, currently. I have such a card, but *never* checked this on my own...sorry.
FlorisVN
macrumors 6502a
Thanks! @Ausdauersportler I've tried target display mode on HS but i could not make it work. I installed HS 10.13.6 and boot up with OpenCore that @Nick [D]vB posted here and then i applied your config; but not luck. Maybe, Am i doing something wrong?
as far as I know, TDM only works best with supported Nvidia quadro cards.
this with modded EFI rom, and using OpenCore..
Fair enough, I stand corrected! 😳 Guess I need to review the place where (I believe) I saw that (kind of) statement...
Would it be possible for you to share with us (in your signature) your hardware configuration, for us to help you efficiently?
Done, however this setup is to be changed after upgrade of GPU(I hope!) and removing Win10 HDD 🙂
We will suppose this card will work.
Do you have a clip to backup original bios and flash new bios?
Sadly not, I wanted to flash using Win10. Won't it be possible to also backup flash from there?
Ausdauersportler
macrumors 603
highvoltage12v
macrumors 6502a
That would be my config file with the "PWM-Info" entered into OpenCore which allows your iMac to boot with a non Backlight enabled card. It should have came from my post?Thanks! @Ausdauersportler I've tried target display mode on HS but i could not make it work. I installed HS 10.13.6 and boot up with OpenCore that @Nick [D]vB posted here and then i applied your config; but not luck. Maybe, Am i doing something wrong?
I can't tell which year iMac you have, but from what I read 2010 27" models only do Displayport in. And 2011 models thunderbolt in from other Mac.
I just got the same card [Genuine HP Zbook 17 G2 NVIDIA QUADRO K1100M 2GB LAPTOP VIDEO CARD 734276-001] from eBay for about $50.
I have a Late 2009 27 inch i5 2.66GHZ model. I installed the card but I am getting a black screen, and only chime when I power on. NO display and it chimes a couple of times like it's trying to start but then nothing happens. My question, how did you get this card to work?
I am assuming I still have to flash it, but what is the best way to do that? I don't have another computer. I have been reading the thread but just overwhelmed with the amount of info and what I need to do.
Since you have the exact card, can you list what and how you did it to make it work? It would be greatly appreciated.
Thanks so much in advance!
Ausdauersportler
macrumors 603
Copied from this page and post:
You need somehow another working computer to get it done. If you read the first page carefully in advance you would have made a plan before putting the card inside. Now using a CH341A is a little bit tricky - you have to get the card back outside.
Q: Flash VBIOS? How do I do that?
A: VBIOS can be flashed in one of two ways: Either directly with a CH341a clip programmer or with the "NVFLASH" software in Windows or Linux. THIS POST helps describe the flashing process. Others have found THIS POST useful. User @xanderoncreated a pre-made USB that can flash the iMac with Linux over SSH. Many have found this the easiest method. Additionally, user @jowaju created a simple Installer package that can be run on macOS Sierra (10.12) and higher that creates a 15GB Windows 7 Bootcamp partition with all the needed tools.
herrdude
macrumors 6502
Your post is like walking in at the end of the movie asking what happened 😀.
The first page is where you need to start.
Cheers!
If I had simply reassembled the iMac with the new cpu I probably would have assumed it wasn't supported.
I benchmarked the new cpu for a while without dvd, hd, or screen connected. That brought the power requirement down to something manageable. When I put the hd back in it crashed seemingly randomly, took a while to realize that was only when it tried to spin up the drive.
That seemed to indicate the ps was going bad so I swapped one from another machine. Didn't help, same problem.
Switching to ssd and K1100m seems to have solved it. Been running High Sierra at 3.4ghz for a couple months now without issues.
highvoltage12v
macrumors 6502a
Yes! I swapped power supplies with my 2010 21.5" with my 2011 765m 21.5". The 21.5" models have very finicky power supplies. With my 765M and full brightness if I do somthing like playing audio at full volume I will have random Reboots. I also see random Reboots when opening safari scrolling fast etc. Open Core/iMac Pro SMBios has helped with this.
Emilio306
macrumors newbie
So I purchased a WX7100 off ebay (Dell Precision 7710/7720 version) thinking that if it performs as well as an RX580 and has better future proofing than other cards on the list compiled by @MichaelDT that it would be the best investment. Ironically, not having to use a Dremel tool to grind down the heatsink like I would have to do to accommodate the Nvidia cards also factored into my decision as I thought it would be one of the easiest cards to install. Then I realized that doing the backlight mod was going to require much more effort now that DyingLight supply is MIA. I'm still waiting for my Radeon 6970m heatsink to arrive in the mail but I guess I have my work cut out for me in the meantime. I found many references to @wlagarde 's Backlight Control mod guide on this thread but it was a bit difficult to find so I'm going to post the link here for anyone who scooped up one of the AMD GPUs:
forums.macrumors.com
Luckily I have access to all the tools needed for this mod but I would certainly recommend that anyone who doesn't to go with one of the Nvidia GPUs as they don't require the same mod in order to run (much easier to grind down the heatsink). Also if I'm wrong about Dying Light hardware hopefully someone will correct me. Big thanks to everyone who's put so much work into making and keeping this thread up to date. There is so much invaluable information here it's insane. If anyone has any tips on ensuring my backlight mod/upgrade doesn't go south that would be appreciated.
Wish me luck and I'll be posting pics, etc once all the hardware arrives and I jump through all the hoops.
2011 iMac Graphics Card Upgrade
Backlight Control Background: The 2011 iMac display backlight system uses pulse-width-modulation (PWM) to control backlight intensity. A PWM control signal is generated within the logic board-video card circuit and routed to the PWM input on the backlight board. The PWM frequency is 13KHz and...
forums.macrumors.com
Luckily I have access to all the tools needed for this mod but I would certainly recommend that anyone who doesn't to go with one of the Nvidia GPUs as they don't require the same mod in order to run (much easier to grind down the heatsink). Also if I'm wrong about Dying Light hardware hopefully someone will correct me. Big thanks to everyone who's put so much work into making and keeping this thread up to date. There is so much invaluable information here it's insane. If anyone has any tips on ensuring my backlight mod/upgrade doesn't go south that would be appreciated.
Wish me luck and I'll be posting pics, etc once all the hardware arrives and I jump through all the hoops.
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So I purchased a WX7100 off ebay (Dell Precision 7710/7720 version) thinking that if it performs as well as an RX580 and has better future proofing than other cards on the list compiled by @MichaelDT that it would be the best investment. Ironically, not having to use a Dremel tool to grind down the heatsink like I would have to do to accommodate the Nvidia cards also factored into my decision as I thought it would be one of the easiest cards to install. Then I realized that doing the backlight mod was going to require much more effort now that DyingLight supply is MIA. I'm still waiting for my Radeon 6970m heatsink to arrive in the mail but I guess I have my work cut out for me in the meantime. I found many references to @wlagarde 's Backlight Control mod guide on this thread but it was a bit difficult to find so I'm going to post the link here for anyone who scooped up one of the AMD GPUs:
2011 iMac Graphics Card Upgrade
Backlight Control Background: The 2011 iMac display backlight system uses pulse-width-modulation (PWM) to control backlight intensity. A PWM control signal is generated within the logic board-video card circuit and routed to the PWM input on the backlight board. The PWM frequency is 13KHz and...
Luckily I have access to all the tools needed for this mod but I would certainly recommend that anyone who doesn't to go with one of the Nvidia GPUs as they don't require the same mod in order to run (much easier to grind down the heatsink). Also if I'm wrong about Dying Light hardware hopefully someone will correct me. Big thanks to everyone who's put so much work into making and keeping this thread up to date. There is so much invaluable information here it's insane. If anyone has any tips on ensuring my backlight mod/upgrade doesn't go south that would be appreciated.
Wish me luck and I'll be posting pics, etc once all the hardware arrives and I jump through all the hoops.
The installer you're looking for is in Post #4765, by @jowaju (at least I think it is the one you're looking for).
Emilio306
macrumors newbie
You're welcome. I've heard that the Linux tool by @xanderon (post #4363) is a nicer way to do it though... I'm sure they are both good and fine, I'm just partial to Linux over Windows.
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On a completely different note:
Have any of you come across a good way to look at CPU & GPU resource usage + temps in a single program? (I'm on High Sierra if that matters.)
My current way is just Activity Monitor (for loads) + Macs Fan Control (for temps), and it kinda sucks, particularly in that it won't show me things like temp graphs, or RAM / VRAM usage, etc.
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Bought a 27 inch 2011 iMac with a faulty GPU and "downgraded" it to a working AMD Radeon HD 6770M graphics with 512 MB removed from an upgraded 21 inch 2011 iMac. I did the same steps from previous install and it was an easy job. When I connected the power cord, I heard a crackle noise from inside the unit (like a blown fuse). Now the computer won't turn on (it did before). LED #1 is green. The power supply looks good except for a few oxidation (they were already there before) on the borders of the board. If I put an ear really close to the power supply, I can hear some very low rattling noise...
Anyway... what's my situation? Have I just created a brick (lost the logic board) or is the power supply gone? I have seen some people suggesting the power button as a possible culprit but I didn't have the guts to "jump start" via the logic board to test this hypothesis.
Can anyone offer some help?
Anyway... what's my situation? Have I just created a brick (lost the logic board) or is the power supply gone? I have seen some people suggesting the power button as a possible culprit but I didn't have the guts to "jump start" via the logic board to test this hypothesis.
Can anyone offer some help?
Not by any means a PSU expert, but I'm almost positive that there are no moving parts in the PSUs for these iMacs... Are you sure that the "rattling" is coming from the PSU? Is it possible to remove it from the case entirely or otherwise disconnect it from the logic board, and hook up power to it alone to check the rattling noise?
My gut reaction is that the PSU was somehow damaged or shorted in your GPU upgrade, and that the noise you heard was the logic board getting fried. A damaged logic board would also possibly explain the rattling noise, as it may be doing dumb things with the HDD or fans...
As I said though, I'm not an expert. The only model of imac that I've ever worked in is the 21.5" mid-2011, and although I've only done 2 GPU upgrades (and SSD installs at the same time), I've got a 100% success (i.e. Yay! It still works!) rate. Never messed with the PSU though. I haven't even taken one out of the case before.