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iM 4,1-14,4 2011 iMac Graphics Card Upgrade
- Thread starter MichaelDT
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Should this be showing legacy boot i check in there and I can't find the file
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This is double posting. You cannot open an OCLP issue and let the developers look into this while at the same time the GPU thread is working on the same problem.
On the first post there is a link to a working UEFI installation method (as long as you have a single disk in your iMac).
I found this using another search machine. Thought about that?
Just to understand you correctly: You have not applied the modification to the heat sink as shown on the pictures on post #1 and you have used the original X-bracket from the 6970 again without any modifications?
In case my assumption is correct please stop posting here and go back to start, do not take 4000 USD, read the complete first post, read it a second time, check all the pictures there, reinstall your card according to the description made and beg that the 880M is not already dead.
Have fun!
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I did some further investigation regarding the power useage on my 770M through software. It's interesting to see that at an initial max GPU load of 862MHz @ ~58C it reports a power draw of ~57W prior to signature throttle cycle to at a min of 135MHz (23W) before the process repeats. Reducing the imac mem to 4GB causes this throttling behaviour to be somewhat reduced.
Now if the actual 205W PSU is tired and underperforming due to age then the ideal 10W headroom I assumed to be available may in fact be a lot less (evening running at 80% eff) leading to the present situation. Perhaps reverting to the i5-2400 (i.e. power reduction) and further K5 pro paste on the VRAM (i.e. heat reduction) may be the only option left for using the 770M in the present configuration.
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Hello I found k610 used on marketplace but usually all the k610 that I saw have only 2 chip of memory for each side of the card
I write to the seller to send me more near photo of the memory and gpu die to check if its really an k610 card
Somebody else saw this kind of gpu card?
This is like watching a guy on a moped trying to attain highway speed.
I say go for it, Mr Bourne. Maybe less intermediate updates, but if you come with a breakthrough regarding throttling, maybe it is some benefit to other users.
Also keep in mind this is a 2 pipe heatsink on a very powerful card ...
I used thermal pads better than paste. Paste is very messy just measure what thickness you need
I got it going but why put in open core legacy patcher that it works brilliant with Windows its a nightmare to get it going someone needs to do some work with this open core.
The UEFI installation instructions are copied from this thread and hundreds of people got it working using it. There was no Windows 10 support on the iMac 2011 with boot camp and no with UEFI - so please to not make others responsible for the difficulties coming with it.
On this thread there have been more posts about the Windows 10 sound problem and how to solve it. Did you ever try to search for those posts on your own? Search button is on the top right side of this window. Limit the results to this thread. Sometimes the big searching machine and limiting to
:forums.macrumors.com works even better.
Could be a K1100M, too. But you would have to check the print on the GPU to be sure.
As long as you do not have an issue or do miss a newly added feature do not update at all. Otherwise download and install in the same way as the first time. If you want to keep the old OpenCore version read the docs how do manage this. You may also keep the old app until you are sure everything works as good as before.
In your case take a second USB stick and install there. PRAM reset whenever changing the OpenCore version. But again this is covered in the OpenCore and OCLP docs. Feel free to read it.
The photo you sent is hp K1100M
Hello I found k610 used on marketplace but usually all the k610 that I saw have only 2 chip of memory for each side of the card
I write to the seller to send me more near photo of the memory and gpu die to check if its really an k610 card
Somebody else saw this kind of gpu card?
These three photos are OEM manufacturer HP K610m Nvidia public version k610m
There is no difference in use, but the color of the pcb board is different. The Nvidia public version has seen more than a dozen of Hynix video memory, and the HP version has Hynix Samsung Elpida video memory.
I have also seen some NVIDIA public version of K510m and K610m are very similar
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No windows 10 runs nice with OCLP just there is not all step by step listed that's why I had issues installing it. Thanks guy's good work appreciate it.
Okay, you can help inserting the missing steps. Within the docs there is this "make this doc better link" on each page. You need an GitHub account (which you have) and then just edit the docs as you like. It is not a beauty contest and your language skills do not matter, too. The developers will beautify and correct it.
Please give it a try! Your will become a contributor - eternal fame on the internet is your reward
Dam right. With the best knowledge base and resources available found in this forum the little moped with the v8 engine is going to open up on the gaming highway
.On a side note it wasn't until now that I discovered the AN sound problem I've been experiencing after my UEFI Windows10H2 install was attributed to a kernel support issue. I solved the igdkmd64.sys problem with the GPU install but with the sound I thought the audio ribbon cable may have been damaged in the process. I'm going to dive into this a little more. I am curious whether this can be resolved post windows 10 install without OC?
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If you would read post 1 you would have learnt that you cannot use it.
Hello I found k610 used on marketplace but usually all the k610 that I saw have only 2 chip of memory for each side of the card
I write to the seller to send me more near photo of the memory and gpu die to check if its really an k610 card
Somebody else saw this kind of gpu card?
K610, K1100m, K2100m appearance are quite similar. Difficult to distinguish without looking closely to the GPU die.
Hello I found k610 used on marketplace but usually all the k610 that I saw have only 2 chip of memory for each side of the card
I write to the seller to send me more near photo of the memory and gpu die to check if its really an k610 card
Somebody else saw this kind of gpu card?
According to the code on the sticker with the QR-Code, 80.07.AB.00.07 should be a K1100M:
igdkmd64.sys how do I get around this on IMac mid 2011 everything was good and now this come on everytime I boot Windows