Flashing a GTX 765M for Mac using nvflash 

Finally! I am so happy to see a proper video of this. Every guide has been awful or uncomfortably complicated. Finally a simple tutorial

congratulations my friend you deserve after all this time waiting, a hug from a Brazilian fan

Thank you for sharing your experience. It's been very helpful.

Just what I was looking for!!! Thanks, man!

Awesome that you got it working!

Thank you so much! My iMac is on the blink and I got tired reading through the Mac Rumors pages with no clear instructions. I'm going to order the k4100 and see how that works. Thanks again

Sweet! Agree that other guide is confusing as heck, especially as to what works or doesn't after. Wish I knew someone with the skills to upgrade my gpu without making it a toaster. Great job!

Congrats. Finally found the data on your web site, you could add in a specific menu with steps (for us amateurs). You could also offer this as a service (someone sends you the card, you flash, check and return). Make a list (video and your site) for the cards where this is possible - presumably GE Force GPU cards. I would guess that there is an easy way to install the card (secondary) in a Win machine and preflash before doing the final install / upgrade in a iMac. Open your Win PC tower, add the card, boot the PC, ID the second card and flash. That would be ideal and eloquent.

Thanks so much for your detailed video.

im very happy for you.Imacs are good.the 2011 are very ok to upgrade and now whit this flash .stay safe

Great to see it up and running again. I did the SSD change myself but found that it boots but no screen. I think I damaged the connector like you did. It’s a black screen but glowing a little. Did you have the same symptoms? To help I can identify that there are 3 LED on at the base of the iMac which can be seen through the grill. The 4th LED is not on. My question is, how did you fix the screen so you can see the screen? I don’t think it’s a dead gpu because it worked fine before so I think it’s a connector issue. Thanks for the videos you guys share - very helpful :)

Awesome like people helping people 👍

I never saw somebody so happy with a boot screen. ;)

Hello good night I have a problem with my 27 inch imac, mid 2011 I always use Final Cut Pro, Adobe Premiere Pro The AMD Radeon HD 67970M 124 MB HD Graphics card no longer works can you help me which model card design to change

Noice. What was the trick re running the card flash with protection off??? Ubuntu 20.04 runs really nicely on those 2010 iMac's ... I have dual boot and I don't want to go back to OSX.

According to Macrumors's guide, they said "For all Nvidia MXM B cards and the WX7100 you need the MXM-B heat sink from the 27" mid 2011 model. This is the only sink with three heat pipes capable to get the generated heat by using 75W out of the system unter load." I have the 2010 27" model just like you do, and our heatsinks have two heat pipes. Do you experience any overheating like they mention here?

hello can you helpme to falsh gtx 680 on imac 12.2 - 27' - i have black screen and no logo - after 3 second the loading bar show and it worg OK= but no boot option. can you help me.

Hello! I have a question... Do you know if the heatsink of a A1312 27" iMac fits in a A1311 21.5" iMac? I would like to change my GPU, but the heatsink doesn't cover the whole GPU, só I thought about to change the heatsink as well. Is it possible to do?

Hi! I have an Imac 3.1 Ghz Core i5 Mid 2011 (A1312) I was planning on upgrading my Gpu to the GTX 765M. I heard that I have to make some modifications to my heatsink for the new card to fit properly? Do you have any idea what & how I'm meant to do that? I couldn't find much about how to make the modifications to the heatsink anywhere. If you have any idea it would be really helpful. Thanks

Nice Video ! I have one question. After flashing the VBios, your GTX 765M workings fine ? Like Brightness control ? Thanks from Eternal City, Rome !

fév 2023 > imac A1311 ready to Ventura 13.2.1 + nvidia GTX675m new wifi AC > and transformation layout of power supply boards + holes and fan for heat extraction TOP !

Hi mate thanks very much for your videos. You got a new subscriber! I am about to get the dual upgrade (i7 2600S + GTX 770M) for my Mid 2011 21.5 iMac. I am just wondering why you needed to take out the GTX that you had in there and then put it back in? I am willing to follow the exact same process of flashing the GTX once I put it in and since I still have to install the components in the first place I'd just like to make sure that I don't unnecessarily do the job twice! :D I am using a dual SSD config using the two available SATA3 ports, so I am already running a dual-boot with Windows on separate drives. Thanks very much in advance!

Congratulations!

Hey Macintoshmen, I have a GTX 675M, I dont need loads of graphics just need to use late software to control my radios. Where can I find the file I need, cheers man great video

I heard someone put a NVIDIA 980M MXM card into a 2011 Mac and got it to work, have you heard about this? I wonder if there is a Mac Flash for that card's bios.

Thanks for your previous message! I have the i5 3.4ghz on my machine should I change it or just stay with the same? After flashing the card, are you able to use the brightness? Thanks

great ! I already ordered 770m 3GB version and I cant wait to flash it ! I already use bootcamp win10 so it shouldn't be any different from your attempt . I will upgrade to Mojave though, because I heard Catalina doesnt support any 32bit software anymore (?)

bagaimana cara menyimpan bios yang lama

Hi there GTX660M wil work with 2011mac or need flash

Hello, Thanks for this nice vidéo. One question: which méthode to install Windows ? Boot camp? Is it possible to start window after installing the new gpu? Thanks

Can this be done using an eternal USB drive with Windows on it? OR does Windows have to be on the internal drive?

When I try to use nvflash it says it doesnt see an nvidia display adapter

Kann ich eigentlich das auch beim 2009er 27er machen (die 4950HD upgraden). Falls ja, mit welchen Karten?

Wow! I learned a lot from your video. Would you suggest doing this on a GeForce GTX 780M? I just ordered one for this 2011 iMac that I'm doing a rebuild. Thanks in advance.

how do you run with protect off?

Hello. Will this work with the 2011 21.5 imac 2.5 i5? I was hoping to use the nvidia 770m to upgrade as I've seen it works wonders, but I wonder if it will draw too much power? I'm hoping to switch to a single SSD, delete the DVD-Drive, and possibly upgrade the CPU to the i7. Please advise

Hello MacintoshMen Excellent work yours. I have a 2011 iMac with High Sierra and Windows 10, I installed a GTX780m, I want to use NVflash in windows, but it is impossible to start the computer with the Gtx780m in windows 10. How can I flash the card? Thanks!!

Congratulations! I installed the GTX 770m and I've already done the flash procedure. I noticed that when I turn on the iMac, a window appears with several lines of text, and then it closes and continues to launch the iMac. In your video I also noticed that the window appears and then disappears. Do you know how to solve this problem? Thanks!

Video hat mir gut gefallen (wie fast alle von euch). Bitte Ton etwas lauter aufnehmen...es kann nicht nur an meinem Alter liegen ;-)

great video!! just wondering if i need to flash my 780M for the mid 2011 27" if I am planning on only using an Apple OS (high sierra) with no windows installed; wIll I still have the screen that shows the different accounts on my machine or do I have to flash it in order to see that?

Hallo ich hoffe sie Können mir Helfen ich habe die Grafikkarte von meinem IMac 2011 mit einem GTX 780 aufgerüstet wenn ich aber einen 2.ten Thunderbolt Monitor anschließe flimmert der Hauptmonitor sofort bei einem nicht Apple Thunderbolt Monitor gibt es keine Probleme und auch in MAC OS gibt es keine Probleme nur unter Windows wenn ich ein zweites Thunderbolt Display von Apple Anschließe, könnten sie mir ein Tipp oder eine Lösung vorschlagen??

I've tried the upgrade but only getting black screen. Following other comments i (think) can also only see one LED through the bottom grill near the ports. but not sure what i'm looking for nor how to confirm the fault if this is defo a bad card (my old card was gone). any advise?

Hello thanks for this simple method ! I guess it works also with K610M card ?

So let me see if I got it right, u need to flash for the new card with the old card on the iMac? Or? U can’t do it with the new card. Did u got it right?

Great work could you do a video tutorial in how to upgrade to catalina or Mojave that will be awesome

Please do update us when you update to Catalina!

Gruss Gott, MacintoshMen! Ive been watching your channel closely and you're the right guy to ask I think! First of all, great work you're doing here. Id like to ask you few questions just to be sure, if I may of course. As Ive bought my first iMac 2 days ago, (iMac 27 2011 High Sierra, 2,7 i5, 8GB Ram, 1TB HDD, HD6770 512Mb). And well, in 2020 this is not the spec one should run so, I'm planning to put inside: Intel Core i7 2600 32Gb of 1333MHz RAM Additional 500Gb SSD And most important thing, GTX 780M GPU! (DELL/ALIENWARE????) Ive downloaded necessary files that you've provided, but the question is, just to summarise things as I don't want to yuck it up. Its all about installing Windows aside, putting GPU in, and flashing the GPU in Windows, and thats it? No driver installation, no other crapdoing? Thanks in advance for any answers!

Hi Bro, Nice work ! Does it work on a 21,5 inch iMac late 2009 with a C2D processor ? Thanks

Hi men, I Can install this GPU on an imac 27 mid 2010, core i5 2.8? thank you!

How did you start up with windows ???

Can this be done for 660m?

BOA TARDE TD BEM GOSTEI MUITO DO SEU VIDEO OLHA COMPREI PLACA NIVIDIA GTX 765 TA PRA JEGAR ME TIRA UMA DUVIDA BAIXEI AS PASTA DO BIOS VEIO 4 PASTAS GPU FIRMWARE COMO FAÇO PARA INSTALAR E VEIO PASTA DO WINDOWS EU N˜AO QUERIA INSTALAR INSTALAR O WINDWONS QUERIA SO SISTEMA DO IMAC OU EU TENHO QUE INSTALAR PRA FUNCIONAR

I installed a new video card, as my AMD RAdeon 6970 was bad. Can I flash it? Unfortunately, my boot screen is all black.

I bought a 765m and my Mac will not boot at all. One led on the logic board. Think it's firmware or bad card? I put my old card back in, works fine.

I just did the cpu upgrade and it went great :D ... If you want you can check it in the video I just made!

My iMac 2011 765M is in Monterey and uses OpenCore 0.4.3 patch, the boot will freeze. Do you have a solution?

Hey fam, i’ve been following you for a longtime and i like you (no homo) - can i pick any 765M on eBay or compatible ones from Macforum? - im afraid of buying a expensive one and it turns out it won’t boot in Windows (bootcamp) .. let me know bro, or i’ll be wasting my trap money 🥶 sorry for spamming...... but i really need a new GPU and answer😞😞

Hi, do you thionk it would work using windows on virtualbox ? i struggle with bootcamp

Hi i've a NVIDIA QUADRO 2000M 2GB removed from DELL PRECISION M4600 P/N 0PMY8Y i've mounted on my IMAC late 2010 system run but ther's more problem of flickering images that blink and overlap: i can flash using this rom? Thank's a lot

I just got a 765m to do the same upgrade, do you know if this can be done by running windows on parallels or does the computer have to be booted to Windows?

Way cool, thx for doing this. And I agree, that macrumors thread is a bit of a train wreck. Can your iMac still support an external display with thru the mini display port? I’m guessing no, but that’s not a big deal for me. Also it does seem like your mid 2010 27” iMac does support 32gb of ram. I have the same machine (iMac 11.3 EMC No.: 2390) with 24gb 1333 MHz DDR3 in it right now with the i7. In comments on another video you were saying it was limited to the officially listed max of 16gb, I think this may be true for the 27” i3 but not for the 27” i5 or i7. Now you have to upgrade the wireless to get handoff working. I can’t figure out the antennas. Thx again!

Best guide i could find! Cheers mate! Quick question. did you just use boot cat to load windows? and for the other listed processors "Same process works for 770M, 780M, Quadro K1000M, K1100M, K2000M, K2100M" can those be upgraded to Mojave and Catalina too?

Hi men, I Can install this GPU on an imac 21.5 mid 2010 too?

hi, i have an mid2011 imac, i bougth the nvidia 765m graphic card, my question is... its necessary to do all this process? my imac is runnig high sierra Os and i do no want to update... this hardware upgrade only affects the brightness control? or it can be harmful on the long run?

Can I be able to flasgh my gtx 770m to my windows 10?? Do I need the card to be connected or do I flash the system first??

hello! good for your videos, i can use a programmer chip eprom for flashing bios? Insert the file rom of chip gpu, thank you

hi Macintochmen, can a gtx 765m mxm 3.0 from MSI work in IMAC ?

After flashing the card, is there availability of a boot switcher and brightness adjustment through the keyboard?

Hmmm I see you had quadro roms on this. Might have to dual boot and do this.

Hi.. Yes you are lucky you have the 27" and dont have to take out the MOBO. Im doing a 2010 obviously the 21.5 but since I ordered the cpu too it's probably wise to wait till it comes from china and do it all together. Do you think its easier to use windows 7? 10 should not be a problem eh? ....The thing I would dread most would be cleaning inside LCD really don't want to do that one! I may just ignore the black spots and keep the fan on full. Oh well gonna be fun... got it free so not bad with upgrades ssd 500gb 65$ ram 8gb 15$ gtx 765 114$ i7 860s 39$ 228 pretty good. You ever get catalina working ok for it?

Great job! Does sleep work?

Funktioniert nvflash auf mit Windows in Parallels? Ich habe Windows nicht nativ installiert.

mnow u can use oclp 6.1 and load monterey on it....

Hi, Is there any chance that can i run nvflash in windows run via VirtualBox?

I have the same Gtx 765m card installed in an imac 27 final 2009 it works perfectly with an ssd and maximum of ram memory. But the issue of brightness is not resolved keyboard buttons do not work I have to resort to a Brightness Slider app. Does it work on your computer?

Hey bro, i want buy an GTX 765m or and GTX 780m for my imac 21,5 mid 2011, does flashing it i will have brightness control and the bootscreen? also, for bootcamp drivers it will work?

did your brightness controls work once you flashed the video card?

Did you use BootcampWindows to update flash?

It can be done on windows in Parallels Desktop?

Awesome! Does this also bring back Target Display Mode?

I can’t for the life of me figure out how to boot windows on my 2010 Mac. Any chance we can get a windows boot tutorial??

Does it support Target Display Mode after Flashing?

How do you install windows on a Mac to be able to do this at all?

Name of the channel should be MacintoshBoys...

Will it boot into Big Sur as well with this card?

GOOD AFTERNOON TD WELL I LIKED YOUR VIDEO VERY MUCH LOOK I PURCHASED NIVIDIA CARD GTX 765 TA PRA JEGAR TAKE ME A DOUBT I DOWNLOADED THE BIOS FOLDER CAME 4 FOLDERS GPU FIRMWARE HOW DO I INSTALL AND CAME WINDOWS FOLDER I DIDN'T WANT TO INSTALL INSTALL WINDWONS I WANT ONLY IMAC SYSTEM

Is this possible with the gtx 860m? And do you know if it supports metal?

how did you install windows 7 ??brightness control worked??

How do you get it to boot to windows? I'm stuck on that step.

will the graphics card work if i just wanted to stay in windows??

nvflash doesn t work on win 10 Pro plz help

Hi friend How I flash ? if black screen windows ?

Do the nvflash64 and 765M.rom files need to be on the Mac side of the computer or on the Windows 7 side?. I copied these files to the Windows 7 side in bootcamp. I started the iMac no problems, changed my "Startup disk" to Windows, then restarted. So far so good. I ran CMD.exe but am unable to flash the bios. Whether I place the individual files on my desktop or in a file folder, I get "system is not recognized as an internal or external command, operable program, or batch file." or "system cannot find the path specified". I'm using a 21" 2011 imac in Sierra but with a 770M. Please help by listing the exact text needed. Thanks!

Can you at least link us to the files for easy download? A Link in the description should suffice.

how to get windows on imac??

maybe to put the mic closer to your mouth i almost needed a hearing aid :) This should do also the patch to unsupported macs sunning Mojave as with me i kept on getting the black screen without using at the start the Alt key holding which i see you did. Now in Mojave using the great patch with out card we need first to flash the card in windows