Thank you!! Saved my iMac to live a little longer, hopefully until the new 27” (equivalent) M chip iMac arrives. I was sorting out all my stuff in readiness and part way through, boom! Stripes, then solid pink screen and the iMac kept rebooting itself .. pink/grey nothing else 😫 Got myself iFixit tool kits and and thermal paste, baked and now up and running 🙂 First thing .. get a latest back up!! Odd thing though, with the mid-2011, I had to remove the motherboard as the GPU board screws were on the other side. Bigger job, never done anything like this before but not too difficult. This video and all other comments gave me the confidence to give the fix a try. Thanks to you and all!
@@anastasioskondakos2090 Yup. Still working. I’ve been doing photo editing though I’ll be honest, I haven’t pushed it too hard and hot, just in case but still able to do what I need, especially with photos and videos. Use it ever other day for about 2-3 hours solid. I use XRG from Gaucho Software to monitor the the GPU and other temps.
$30 is a screaming deal. I picked up a pair of retired Mid 2011's 27's that had been worked on. My deal was no where near as good but one of them was i7/2GB VRAM/SSD/24GB RAM. Both had bad GPU's which came back with bake. I used foil to make stand offs that fit into the screw holes to not touch board or components. Inserted into cold oven and set to 390F which is just under 200C. Once the temp reached 390, baked for 10 minutes and then let cool at least one hour with door open. I am three for three so far. One had pink bars on the boot screen. The other two caused no power up and sometimes would show boot screen but hang and then show WSOD. All came back to life.
Hi wonder if u could help my imac 27 was running I know there a gpu fault not used machine I couple of years pram battery died have replaced that but not getting any of the 4 legs on logic board like no power could power supply gone bad ?
The best way to revive these iMacs is to throw in a metal supported card like a kepler, amd gcn, or amd polaris cards. That way these will last way longer. NOTE: you will have to flash vBios and use opencore on some cards
I baked my gpu (iMac 2011 27") a couple of days ago and it works perfectly. Cleaned everything inside the iMac and put Thermal Grizzly Kryonaut on CPU and GPU. GPU runs under 40 degrees C when idle, and around 60 degrees C when watching HD TH-cam or doing some video editing.
Great video. My mid-2011 27" is showing vertical pink lines like yours. I've already opened it up and cleaned everything - now I'll try baking it. Will let you know how it goes. Thanks!
Heck ya. This worked for me. Vertical stripes on my 2010 iMac are gone and the GPU is firing on all cylinders. I baked the GPU card in the oven at 395° for 8 minutes. Your shortcut for removal and reinstallation of the GPU+cooler assembly worked great. Now I am going to install an SSD card and extra SDRAM. Sweet.
@@djfritz It worked like a champ for about 7 months. It went out about two weeks ago. I need to bake it again. Or maybe I should try to find a new GPU for about $200. I can still boot into Safe Mode (holding down shift key) but that gives me slow screen redraw and no sound.
@@RichardSchletty interesting! good to know , i was going to attempt it but i dont have the time or the tools so i just took mine to a local computer shop and the tech said he will try to bake it. for $160.
Unlikely, since the GPU usually still turns the screen on. You may have a bad backlight for your screen if it’s turning on with and the screen is black. One way to check would be to turn it on and shine a flashlight at the screen, if the screen is on but the backlight is not working, you’ll be able to see the image with the flashlight
Been doing this for years after my first ever iMac died a death. It works a treat but it doesn't last forever. Current machine needs doing again for a third time with about 18 months in between each. Still better than forking out £££'s for a replacement machine though! The weird thing is you'll find loads of stuff on TH-cam and the internet in general saying it doesn't work and it's a waste of time, except anyone who's tried it knows full well it does work, at least for a decent amount of time and can always be done again.
totally. I got 1 for free and i did it the second time in its life and it has been running strong for 2 years now. I did bake it for 20 minutes though. Previous owner said he did it for 10 minutes and it only lasted 7 months.
@@joecan the length of time it lasts isn't dependant upon how long you bake it. By the way the iMac is still going strong, that's over two years. I found a good trick is to remove the optical drive temp sensor. The fan then spins up at full chat on start up, install Fan Control, and put it on auto so once you're logged on the fan slows down again. Stops the machine getting roasting hot during that boot up time.
Hi, Really enjoyed this video! I know it is 4 years after the fact, but... A question for you. My 2011 21.5 inch Imac is currently in the shop because one day the screen just went black. 3 times. Each time I just restarted, but the last time, it didn't come back. Also noticed the back was very hot, behind the power core. Don't know if the optic drive burnt out or the graphic card died? the machine turns on. One can hear it start up but no chime and black screen. The fans are running. Just wondering if you might know what 'burned out'? May find out soon enough from the shop but these guys don't usually work on macs... Thanks for any help! Blessings! AJ
Hey Jack i don't know if you still reply to the comments but i have a early 2009 iMac Intel 24" EMC 2267 i was wondering if it has the same easy process as this like only the gpu comes out other videos shows everything coming out but can you give a better explanation of 5:45 taking out gpu and assembling it back
The 24” is the previous model and does have different disassembly instructions, but it is somewhat similar. I would follow this ifixit guide! www.ifixit.com/Guide/iMac+Intel+24-Inch+EMC+2267+Graphics+Card+Replacement/13765 If that link doesn’t work, the title of it is “iMac Intel 24" EMC 2267 Graphics Card Replacement”
@@abdulrahman-o5m5s yeah, it’ll always be recommended to remove the whole logic board, I would probably do the same thing if I did it again. I took a short cut in that video that did work, but any instructions will say to remove the logic board
I’m going to attempt this method but I only have thermal paste and from what I’ve read online that they are two different pastes from the GPU chip and memory chips ,think I’ll be fine and if so how did yours hold up?
jack how can i remove ftont bazzel without t8 torx because i cant find it anywhere in my town and we dont have amazon too but i have a small flathead but its too small when i unscrew it moves but screw doesent
My imacs GPU was defect and only showed a white screen, so i tried baking it. It seemed to have worked because now i can login, but the screen went completely black though so i cant see anything. Could this still be the GPU? Or could it be something with the cables ?
8 minutes @ 395F I'm Deaf and the auto-CC wasn't great so I was looking all over the place for these numbers to reflow my HD5670. Had a hearing friend listen to this video for me so people who either can't hear or just need these specs, you're welcome.
Great video--liked and subscribed! I got a free 21" 2011 iMac that was exhibiting the exact same issue. Got it working following your video. The fix was the same, but the GPU was MUCH more difficult to get to. Now for RAM upgrades and an SSD!
@@Sykora171 oh thanks for quick reply. i don't know if you mentioned that in the video but many people here replied with success and this made me assume that either way it should work. but i wanted to make sure. mine looks different to yours and i will have to get motherboard too. i think i also will need to replace thermal pads on the g.p.u. and now looking for correct ones and thicknesses of pads. my g.p.u. occassionally turns black and i blame it for this fault. i hope i won't be doing wrong.
Saw your post on Reddit and decided to watch your video, to my surprise, it was very professionally done and really good, you just got 1 more subscriber who also ticked that notification bell!
I just had the same problem on my 2010 21.5" iMac and rather than go through the trouble of doing the work you did, because I'm lazy and impatient. I took it to my local indie Mac shop and got a new or refurbished video card for $150, I asked him about reballing the card but he said it wouldn't last but if he did it he would charge $90.
Coolpaste for CPU and ram chips are 2 different things, on the ram chips there is a about 1mm gap to fill. CPU past is not suited for this. I used K4 pro and K5 pro.
The best way to keep it cooler and improve speed & performance is to install Macs Fan control software to manage the flow better, and replace the "rotating" hard drive with an SSD (FAR less heat). Buy a good T8 & T10 screwdriver as you plan to work on this and other machines. Cleaning dust is more gentle if you use a vacuum cleaner at the low power setting, try to passively remove dust - a high speed blower might accidentally damage a component.
This. I set my fan speeds above 2,000 rpm. Coming from the PC world, fan noise does not bother me at all. This keeps everything between 45C and 60C which is a lot cooler than auto setting. Heat is the enemy. Don't want a repeat GPU failure.
Just finished baking the video card on my 27” 2011 imac & it worked! I was amazed (& delighted) like you when I got past the white screen & it actually booted up. Thanks for posting this, it really helped even though the configuration of my imac was a bit more complicated than yours as you have to remove the motherboard on my model to get the GPU out.
Great video I have two I picked at yard sales for basically free - paid 20$ for box of computer video cables dvi vga guy threw in two non working 27 inch 2009 iMacs … I’m wondering how long your bake reflow lasted please ?
I like your style. Nothing overacted good tipps and clear speech - no ah aehm uhh. Would like to see more of you.
Thanks! That’s very kind. I enjoy making thee videos, though I haven’t made one in a long time. I’d love to get back into it.
Baked mine 2 years ago now -and it’s still running strong! 27” I7 2009
Thank you!! Saved my iMac to live a little longer, hopefully until the new 27” (equivalent) M chip iMac arrives. I was sorting out all my stuff in readiness and part way through, boom! Stripes, then solid pink screen and the iMac kept rebooting itself .. pink/grey nothing else 😫 Got myself iFixit tool kits and and thermal paste, baked and now up and running 🙂 First thing .. get a latest back up!!
Odd thing though, with the mid-2011, I had to remove the motherboard as the GPU board screws were on the other side. Bigger job, never done anything like this before but not too difficult.
This video and all other comments gave me the confidence to give the fix a try. Thanks to you and all!
Cool. Is it still going strong?
@@J_Alrighty Yup! 🙂
Still working ?
@@anastasioskondakos2090 Yup. Still working. I’ve been doing photo editing though I’ll be honest, I haven’t pushed it too hard and hot, just in case but still able to do what I need, especially with photos and videos.
Use it ever other day for about 2-3 hours solid.
I use XRG from Gaucho Software to monitor the the GPU and other temps.
Still working? Lol
Did you just have it sitting flat on a pan in the oven or did you have it on a riser? Thank you!
Thank you!! Found mine at a garage sale for almost nothing and you've helped me bring it back to life!!
Awesome!!! Congrats!!
$30 is a screaming deal. I picked up a pair of retired Mid 2011's 27's that had been worked on. My deal was no where near as good but one of them was i7/2GB VRAM/SSD/24GB RAM. Both had bad GPU's which came back with bake. I used foil to make stand offs that fit into the screw holes to not touch board or components. Inserted into cold oven and set to 390F which is just under 200C. Once the temp reached 390, baked for 10 minutes and then let cool at least one hour with door open. I am three for three so far. One had pink bars on the boot screen. The other two caused no power up and sometimes would show boot screen but hang and then show WSOD. All came back to life.
Great ! Are the iMacs still working? Thinking of doing this.
Hi wonder if u could help my imac 27 was running I know there a gpu fault not used machine I couple of years pram battery died have replaced that but not getting any of the 4 legs on logic board like no power could power supply gone bad ?
The best way to revive these iMacs is to throw in a metal supported card like a kepler, amd gcn, or amd polaris cards. That way these will last way longer.
NOTE: you will have to flash vBios and use opencore on some cards
I baked my gpu (iMac 2011 27") a couple of days ago and it works perfectly. Cleaned everything inside the iMac and put Thermal Grizzly Kryonaut on CPU and GPU. GPU runs under 40 degrees C when idle, and around 60 degrees C when watching HD TH-cam or doing some video editing.
Great video. My mid-2011 27" is showing vertical pink lines like yours. I've already opened it up and cleaned everything - now I'll try baking it. Will let you know how it goes. Thanks!
How did it go?
I'd also like to know.
I did this on my 27" 2011.... The fix lasted about a year. I'm about to do it again, and keep this thing chuggin'
Thank you for your help! I did it today on my 2009 imac 27 inch and it worked! thank you very much! Best regards from austria !
@@HackintoshMasta nice! I hope it lasts a good while for you!
Heck ya. This worked for me. Vertical stripes on my 2010 iMac are gone and the GPU is firing on all cylinders. I baked the GPU card in the oven at 395° for 8 minutes. Your shortcut for removal and reinstallation of the GPU+cooler assembly worked great. Now I am going to install an SSD card and extra SDRAM. Sweet.
is it still working fine?
@@djfritz It worked like a champ for about 7 months. It went out about two weeks ago. I need to bake it again. Or maybe I should try to find a new GPU for about $200. I can still boot into Safe Mode (holding down shift key) but that gives me slow screen redraw and no sound.
@@RichardSchletty interesting! good to know , i was going to attempt it but i dont have the time or the tools so i just took mine to a local computer shop and the tech said he will try to bake it. for $160.
@@djfritz Good luck. I hope it lasts for a year or more. Let us know!
tell me u didn't do this@@djfritz
Does this also applied to black screen imac ?
Unlikely, since the GPU usually still turns the screen on. You may have a bad backlight for your screen if it’s turning on with and the screen is black. One way to check would be to turn it on and shine a flashlight at the screen, if the screen is on but the backlight is not working, you’ll be able to see the image with the flashlight
@@Sykora171what if there is nothing?
I did everything shown and there's black screen, bootup chime and extremely loudly running fan after about 15 seconds. Any ideas?
Hm, sounds like a temp sensor and/or video cable is unplugged. Unfortunately you’d have to go back and check all of your connections
so, how to oven bake? what degree? detail please?
10 minutes, 200 C° will do it.
I cannot believe this worked. At least, it’s been working for a few hours. Updating to Sierra OSx now. Thanks!
I dont have pink or green lines but glitches when i move the mouse with my 27" 2011 iMac, will this also work with my problem? Thanks
Been doing this for years after my first ever iMac died a death. It works a treat but it doesn't last forever. Current machine needs doing again for a third time with about 18 months in between each. Still better than forking out £££'s for a replacement machine though! The weird thing is you'll find loads of stuff on TH-cam and the internet in general saying it doesn't work and it's a waste of time, except anyone who's tried it knows full well it does work, at least for a decent amount of time and can always be done again.
totally. I got 1 for free and i did it the second time in its life and it has been running strong for 2 years now. I did bake it for 20 minutes though. Previous owner said he did it for 10 minutes and it only lasted 7 months.
395 degrees F for 20 minutes?
@@joecan the length of time it lasts isn't dependant upon how long you bake it. By the way the iMac is still going strong, that's over two years. I found a good trick is to remove the optical drive temp sensor. The fan then spins up at full chat on start up, install Fan Control, and put it on auto so once you're logged on the fan slows down again. Stops the machine getting roasting hot during that boot up time.
Hi, Really enjoyed this video! I know it is 4 years after the fact, but... A question for you. My 2011 21.5 inch Imac is currently in the shop because one day the screen just went black. 3 times. Each time I just restarted, but the last time, it didn't come back. Also noticed the back was very hot, behind the power core. Don't know if the optic drive burnt out or the graphic card died? the machine turns on. One can hear it start up but no chime and black screen. The fans are running. Just wondering if you might know what 'burned out'? May find out soon enough from the shop but these guys don't usually work on macs... Thanks for any help! Blessings! AJ
Hey Jack i don't know if you still reply to the comments but i have a early 2009 iMac Intel 24" EMC 2267 i was wondering if it has the same easy process as this like only the gpu comes out other videos shows everything coming out but can you give a better explanation of 5:45 taking out gpu and assembling it back
The 24” is the previous model and does have different disassembly instructions, but it is somewhat similar. I would follow this ifixit guide!
www.ifixit.com/Guide/iMac+Intel+24-Inch+EMC+2267+Graphics+Card+Replacement/13765
If that link doesn’t work, the title of it is “iMac Intel 24" EMC 2267 Graphics Card Replacement”
@@Sykora171i have seen that before but there its telling to take the whole logic board out
@@Sykora171 also can you tell the screws name on the lcd panel name so i get that screw driver
@@abdulrahman-o5m5s yeah, it’ll always be recommended to remove the whole logic board, I would probably do the same thing if I did it again. I took a short cut in that video that did work, but any instructions will say to remove the logic board
@@Sykora171 i dont wanna remove the logic board cause i dont have a lot of screwdrivers
can you do same on imac27 inch 2013 model?
I’m going to attempt this method but I only have thermal paste and from what I’ve read online that they are two different pastes from the GPU chip and memory chips ,think I’ll be fine and if so how did yours hold up?
did it work with just the thermal paste? im want to try the same..
@@g1deon469 yes it did works 100% fine 27in iMac late 2009 model
@@Gonzalez_Films Ah nice! thanx :)
Another Thing Jack is it necessary to remove the thermal paste before baking cause i cant find it anywhere
jack how can i remove ftont bazzel without t8 torx because i cant find it anywhere in my town and we dont have amazon too but i have a small flathead but its too small when i unscrew it moves but screw doesent
My imacs GPU was defect and only showed a white screen, so i tried baking it. It seemed to have worked because now i can login, but the screen went completely black though so i cant see anything. Could this still be the GPU? Or could it be something with the cables ?
Can you leave the thermal heat paste when u bake or can I just use a heat gun
Great help well explained I have same problem I Toronto Canada I will do that repair and let you know thank you so much.
8 minutes @ 395F
I'm Deaf and the auto-CC wasn't great so I was looking all over the place for these numbers to reflow my HD5670.
Had a hearing friend listen to this video for me so people who either can't hear or just need these specs, you're welcome.
Thank you! worked! 2011, imac 27"
Was gonna throw my old 2009 - 27 into the Mac-Bin but will now ticker with it. Nuttin Toulouse : ). Tanks much : )
Great video--liked and subscribed!
I got a free 21" 2011 iMac that was exhibiting the exact same issue. Got it working following your video. The fix was the same, but the GPU was MUCH more difficult to get to. Now for RAM upgrades and an SSD!
Yea I’m in same boat very difficult situation lol happy you were able to get it I’m trying now
And yes Ik this was a year ago
does oven has to be pre-heated?
That’s what I did, yes!
@@Sykora171 oh thanks for quick reply. i don't know if you mentioned that in the video but many people here replied with success and this made me assume that either way it should work. but i wanted to make sure. mine looks different to yours and i will have to get motherboard too. i think i also will need to replace thermal pads on the g.p.u. and now looking for correct ones and thicknesses of pads.
my g.p.u. occassionally turns black and i blame it for this fault. i hope i won't be doing wrong.
Awesome video dude!
You should check Curtis Gross's youtube channel, he has explored other options for replacement gpu's ( some metal compatible ) for these machines.
Nice vid!
Saw your post on Reddit and decided to watch your video, to my surprise, it was very professionally done and really good, you just got 1 more subscriber who also ticked that notification bell!
Thanks, that means a lot! This was recorded on an iPhone SE and edited on iMovie (which I have never used before), so i'm glad it was watchable!
@@Sykora171 Damn, I guess you don't need much to make a simple and "minimal" video
I just had the same problem on my 2010 21.5" iMac and rather than go through the trouble of doing the work you did, because I'm lazy and impatient. I took it to my local indie Mac shop and got a new or refurbished video card for $150, I asked him about reballing the card but he said it wouldn't last but if he did it he would charge $90.
"Can't believe that worked..." Wait, what?
Hey there. Great vid. I will be attempting this soon.
Im wondering how long it lasted?
Thanks! Last I checked, still going strong!
Well done!
WHAT benefits does the GPU gets when put inside the Oven to BAKE? sorry Im no expert
Coolpaste for CPU and ram chips are 2 different things, on the ram chips there is a about 1mm gap to fill. CPU past is not suited for this. I used K4 pro and K5 pro.
The best way to keep it cooler and improve speed & performance is to install Macs Fan control software to manage the flow better, and replace the "rotating" hard drive with an SSD (FAR less heat). Buy a good T8 & T10 screwdriver as you plan to work on this and other machines. Cleaning dust is more gentle if you use a vacuum cleaner at the low power setting, try to passively remove dust - a high speed blower might accidentally damage a component.
Highly recommended! I love that program! After this, I raised the minimum fan speeds using MacsFanControl. The noise difference its pretty negligible!
This. I set my fan speeds above 2,000 rpm. Coming from the PC world, fan noise does not bother me at all. This keeps everything between 45C and 60C which is a lot cooler than auto setting. Heat is the enemy. Don't want a repeat GPU failure.
Still going strong? :)
Yes sir!! :)
@@Sykora171 Great news! :D
Just finished baking the video card on my 27” 2011 imac & it worked! I was amazed (& delighted) like you when I got past the white screen & it actually booted up. Thanks for posting this, it really helped even though the configuration of my imac was a bit more complicated than yours as you have to remove the motherboard on my model to get the GPU out.
Is it still working?
@@daviddamini2185 Yes, still working although I only use it occasionally.
@@royturv thank you for your answer :)
1 more subscriber, keep doing
u should film from above over a blank table
U really buy this for 30 $
Yogesh Udamale I found 1 for $20
😍
Microwave is faster, just try it!!! ;)
microwave + aluminium ... boom
Terrible idea for anyone that comes across this and thinks it’s serious
Jees you do talk way too much
Great video I have two I picked at yard sales for basically free - paid 20$ for box of computer video cables dvi vga guy threw in two non working 27 inch 2009 iMacs … I’m wondering how long your bake reflow lasted please ?