No. The 765M is designed to take either size of the X-Bracket and the Apple X-Bracket has a plastic insulating barrier on the underside of it.
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iM 4,1-14,4 2011 iMac Graphics Card Upgrade
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Oh ok. I recall some people modding the bracket as well. I don't want an accidental short to happen! If I have to, I could use insulated electrical tape.
A few last things:
On the dosdude patcher post install, is there anything i either HAVE to make sure is installed or HAVE to make sure is NOT installed? I heard the legacy graphics patch is a no-go
If I have 2-8GB sticks and 2-4GB sticks, does it matter where I put them in relation to each other?
I will post screen shots when complete tonight.
Select your iMac model from the dropdown list (12,2) and it will select the correct patches for you. Then uncheck the legacy video card patch and apply.
So I did everything and I am done. Some thoughts:
EDIT: I read the threads and answered some of my own questions.
1) Now I know what people mean about the brightness. What brightness app does everyone use? Can someone link me one? I tried the free brightness one but it seems to have a sticking point where it goes from working to too dark. Also, the mouse pointer seems brighter than normal. I have to use night shift and dark mode or my eyes hurt.
2) Dynamic Wallpaper is pretty cool. Stacks just seems like something that should have come with the OS to begin with. Dark Mode works great. Night Shift is like flux and is also cool.
3) When 10.14.3 comes out, how do I upgrade properly when using the patched install?
4) I noticed my graphics card fit too good then I noticed I have a 2 pipe heat sink. While no modding was needed, my graphics card runs a little hotter and my fans are a little faster than normal. Would this change with a bigger heat sink? I think I need one of those 3 pipe ones.
5) I noticed that the LCD screen now runs a little hotter and I assume that this is because brightness. Am I correct? Fortunately nothing runs above 50C except the LCD proximity. The fans run between 1900-3700 rpm and each fan seems to stay around its speed. My iMac was noticeably hot after running the machine a few hours.
6) I am missing some of the temperature sensors I used to have in my macs fan control software. Is this because of the card change?
7) Now that the boot screen is gone, is there a way to output the screen if you need to do some diagnostic work or something?
8) Does this card work with bootcamp or should I just use a VM?
9) Make sure and patch your iSight camera.
10) Should I be worried about those parts of the graphics card without any heat sinks or anything on them? The most I game is playing minecraft. I wonder if I am slowly killing the LCD screen.
Overall, the hardest part was putting the logic board back in. I went ahead and put paste on the processor also. Trying to line the screw holes up was a pain in the ass but everything is back now. Last to do is to clean the glass and put it back on. While doing this does fix some problems, it invites others for which there is no fix. However, giving more life to an iMac isn't a bad thing. I would not recommend this to any clients I have. I may buy a bigger heat sink and do this again. Or I may just go back to the stock card, IDK.
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I am not sure which one is better, but I did as he suggested without wondering why. I also kept the bracket and removed all of the old glue residue left from the cheap bracket. The bracket that came with it is cheap made.
Either will work but if I remember correctly the holes in the original one included with the GTX 765M are threaded and need to be drilled out for the screws to fit and my impression was that the original Apple one was of better quality which is why I chose to use it.
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Congratulations on your successful upgrade.
1) Brightness slider available through the apple store. All of your observations are correct. The only way to address these problems is to implement the solution outlined in post #1354.
3) Upgrade through the system preferences-software update as you usually do for macOS updates.
4) 3-pipe heatsink version (needs to be modified as described in this thread) will solve this issue.
5) Yes, LCD runs way hot and in my opinion too hot likely shortening its life. Implementing solution described in post #1354 will solve this issue.
6) Yes, without proper EFI on the card the GPU die temp sensor cannot be read but no matter as you can still read the GPU heatsink temp which correlates with GPU die temp.
7) Possibly screen sharing. This is why you should keep your original card or if its defective buy a used Apple card to use for this purpose.
8) The general consensus is that a card will tend to work in EITHER macOS OR Windows but not both. There was one recent report of someone who got their GTX765M card working in macOS and Windows. See post #1475.
10) Yes, possibly. That is why I would recommend using the 3-pipe heatsink and adding some heat sink copper plates to the vRAM chips on the side of the card opposite the heatsink.
[doublepost=1547004210][/doublepost]Wanted to link another great thread here about upgrading the Mid-2011 iMac to Bluetooth 4.0 which enables continuity features: https://forums.macrumors.com/threads/imac-mid-2011-bluetooth-4-0-internal-upgrade.1780242/page-11
I know many here are likely aware but wanted to make sure everyone was aware. I just finished upgrading all of my iMacs and I have continuity working flawlessly in macOS Mojave 10.14.2 - really nice to have this.
Do they make these that are self adhering? Could you maybe link something that would work?
I google searched and found a few kinds. Now all is needed is a way to make they stay on.
existing original x-bracket will not work !
you need the Apple original x-bracket, and you need to modify the Apple one, since it will touch capacitors on the back-side.
see pictures of my mod, many pages back..
The GTX765m card you bought, looks like the same one as mine..
I would stick 1mm copper plates on the backside ram chips, and use 3m thermal tape with it.
I still have to make a custom air duct, but maybay others here are first I dont know..
My GTX765m just arrived along with my K5pro. Got a dremmel kit for Xmas. Am ready to take the plunge and replace baked 6970hd in my 2011 27" iMac for good. Upgraded OS from Mavericks to 10.11.6 (15G1011). (with all my software intact!)
Couple last minute questions of the community before I pop everything apart:
I have some generic heatsink compound in addition to the K5. Should I use a dollop of that on the main chip and slather K5 on everything else, or just use K5 on everything?
I had also planned to keep/use the GTX's X-brace as it has tiny "heatsink" attached. Slather that w/K5 also?
I couldn't locate the exact nvidea webdriver for my particular build (15G1011). and so I snagged the WebDriver-346.03.15f03 which is for build (15G1004) It's been said that that I might not need the web drivers, but would it hurt to install them anyway? Would that driver install occur before card installation or after?
SUPER IMPORTANT>
A couple pics I’ve seen of the heatsink mod show just two corners being shaved like sink A (Attached Image)
But on this post #1305:
it shows three totally different material-removal-locations on sink B (Attached Image). Can anyone confirm which is for realZ?
Thanks to all the key players who really move this thread forward, and to all for their advice and expertise. I'll add my results to the database.
PS - Man, it would be great if somebody sold EMI flashed cards....
https://postimg.cc/zLC4JjVz
Use K5 as a thermal pad replacement, it looks almost the same as the original white stuff Apple has put on the heatsink.
This coveres the vram chips aswell as other powerchokes on top.
Use a lot of it, like seen in the youtube video and instructions !
the GTX765m does not need nvidia web drivers, you can use them I think if you really want them.
But installing them before putting the card in is not necessary , at least not for my GTX765m.
I have tested Mojave and High sierra and both does not need any web drivers.
I think this is also the case for El capitan and Sierra, I'm pretty sure about that..
You can also check my pictures in this thread of the heatsink mod I made, I just used a dremmel and cut of some of the top part of the heatsink.
I now fits fine with the GTX765m card.
I would also reccomend you use the original Apple x-clamp heatsink, and modify it as well with a dremmel to not get it in touch with capacitors on the backside of the Nvidia card.
Use electrical tape if possible to cover everything to be sure.
I used scotch 3M magic tape as far as I can remember, does the same trick..
For now I would say put some copper chims on the back of the vram chips, 1mm copper.
And stick them with 3m thermal tape.
a custom air duct would be ideal for the backside, I still must find time to make one but maybay somebody else here already made one..
[doublepost=1547026998][/doublepost]
indeed, the Apple x-bracket needs some modification in order not to touch some capacitors on the backside.
see my pictures provided in this thread several pages back.
I posted some clear pictures with markings as far as I can remember..
After seeing just how much heat the screen puts off, I have decided to downgrade back to High Sierra and to my old card. If anyone wants a 765m minus the original bracket, let me know and maybe we work out a deal. You can pay on paypal and I will mail it to you. On the plus side, I am now a boss at disassembling the iMac!
On a side note, can you downgrade the OS or is it better to just reinstall fresh?
On a side note, can you downgrade the OS or is it better to just reinstall fresh?
What do you mean with much heat ?
I dont understand, i think I also have seen some other commends here about screen heat..
I dont understand, what is wrong here.. ?
First of all, I want to say that the apple stock bracket fit just fine. The previous bracket was about the same width and everything. I didn't have to mod anything. Taping it would have probably been fine.
I just completed the downgrade back to high sierra. The screen was making my eyes hurt and giving me a head ache. There was just more problems than solutions by the upgrade to Mojave. The main one was the heat put off by the LCD.
My screen, regardless of whatever brightness slider setting you could muster, ran consistently around 50-51C (122F). I am looking at it now and it is at 34-35C (95F). I didn't mind the boot screen being gone. I didn't mind that I had to force night shift to work (and I ended up just using flux anyways for a little while). And honestly, my stock GPU now runs warmer (slightly) than my 765m did. That is with no mods or anything. A 27-30 degree F change is very noticeable, especially during hot days in the south.
I did miss the brightness a little too much and even though those alternate programs could dim it, it was just too much for my eyes. It seemed like it was on or off. More than anything though, was my iMac getting very warm to the touch on the back and running hot, which shortens the life of it. I don't want to have to buy another LCD screen while I own this. I would rather replace or bake stock graphics cards. Especially since I am damn near an expert at removing anything inside the iMac short of the hinge bracket.
Crazy thing was i thought if I dimmed the lights with the brightness slider app it would make a difference. Nope. I had to run the fans at unreasonably high levels to keep the LCD below 50C. It doesn't sound like a lot until you accidentally touch the back of the machine and notice how warm it is and then realize what that will feel like in July. Nothing currently runs above 50 on the machine except the platform controller occasionally. I like a quiet and cool system and that is what I now have.
Some might not care and love the OS and the fancy desktop and stacks etc. I am just going to ride out High Sierra until it is supported no more. At least I know now that I can do the swap if I have to.
Also, I tried out Arctic Silver 5 and K5 pro on the CPU. Although I am not going to switch, it ran cooler with K5. I am impressed by the thermal paste they make despite it looking like glue. Don't be afraid to use it on your processors.
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FlorisVN - See attached pictures. It looks like there may be different versions of the Apple stock X-Bracket as mine came stock with plastic insulating barrier. I have two different sized X-Brackets: 1) a larger one that came with a Radeon 6970 and 2) a smaller one that came with a Radeon 6770. Both of these have plastic insulation attached to the underside and if you look closely at the picture of the GTX 765M card there is an x-shape outlined on the board for both sized X-brackets where the board is devoid of surface components. I used the smaller Apple X-brackets for my installations unmodified as they fit perfectly and the existing insulation material protects against shorting board components. Does your Apple Apple X-bracket look like either of the ones I pictured or is it different? I looked at arkleboy72472's pictures closely and I now recall the stock GTX765M X-Bracket had threaded sleeves that would need to be drilled out and removed to make it work so I opted for the Apple X-Bracket.
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looks like a handy tool for creating a custom efi rom.. ?
no need to take the card in and out of the iMac all the time.. ?
Possibly can be used to test with a MacPro for example, to see test results..
Maybay a handy tool for rom creaters such as MacVidcards... ?
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Thanks for your info and pictures !
I was not aware of this.
As far as I can remember user highvoltage12v reccomended me a while back to use the Apple x-bracket and modify it.
And so I did then, I also have same black backside..
I do want to meantion that it seems at the time I thought highvoltage12v was right, that the bracket was touching the capacitors.
However I can now better use the original heatsink from the GTX765m.. ?
[doublepost=1547141933][/doublepost]
Ok, have you also seen the lcd mod from a few posts back.. ?
maybay this will help lowering the temperature of the LCD... ?
I will check mine soon, and posts results here but as far as I can remember the iMac LCD was not hot at all.
I do want to meantion that i Am running all the iMac fans at full speed all the time...
Yes I think you can use your original Apple X-bracket unmodified provided it looks exactly like the ones I pictured. The one with the smaller central square fits best. That said clearly highvoltage12v had reason to be concerned about shorting surface mount components so I would love to hear from him (or her) about whether his X-brackets are different from ours.
ok, thanks for the info !
As far as I can remember, the original apple x-bracket also touched the capacitors on my Nvidia GTX765m.
I made some pictures of it showing the cuts, a few pages back in this thread.
But as far as I can remember it was shortening if I had not done some small mods to the bracket..
hello all,
this may seem like a dumb question but i’m not very knowledgeable about how the boot process works and what gets loaded when
i’ve put off replacing my card (that i’ve already baked once) because i don’t want to lose boot screen
i’m wondering if something like refind would show up on the screen
thanks in advance for any response
this may seem like a dumb question but i’m not very knowledgeable about how the boot process works and what gets loaded when
i’ve put off replacing my card (that i’ve already baked once) because i don’t want to lose boot screen
i’m wondering if something like refind would show up on the screen
thanks in advance for any response
Great video !
Love to see more, and I'm also following Mac Yak channel
I would advise you to use an MXM-A video card for the 21,5" iMac series !
Another user here posted he had his Dell Precision M4700 Nvidia Quadro K2000M working fine.
This is an MXM-A card insteal of the bigger MXM-B cards.
I would advise to use that in smaller iMacs, which also use MXM-A heatsinks..
27" iMac's, I would advise to use bigger MXM-B video cards.
For the backside use 1mm copper plates, stick it with 3m thermal tape 14x14mm to cover the backside vram chips.
Also I would highly recommend you use K5 thermal pasta, to replace the white Apple original white thermal paste for the vram chips and heatsink choces.
see following examples of recommended products :
https://www.amazon.com/CS-LABS-Thermal-replacement-K5-PRO/dp/B01H3D9ZE8
https://nl.aliexpress.com/item/20-p...552.html?spm=a2g0s.9042311.0.0.4b7d4c4dCXuitA
https://www.ebay.com/itm/5x-Adhesif...h=item5b316c8609:g:RBAAAOSwo4pYcQMZ:rk:1:pf:0
https://www.ebay.com/sch/i.html?_fr...nVIDIA+Quadro+K2000M+2GB+Video+Card+&_sacat=0
https://www.amazon.com/Precision-nV...rds=Dell+Precision+M4700+Nvidia+Quadro+K2000M
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