MBP 1,1-10,2 GPU Kernel Panic in mid-2010; what's the best fix?

[user1690]

Greetings all! I just want to thank Fabioroberto for their kext fix! I didnt really want to goto Yosemite so i thought there was no harm in trying this on 10.9 and i'd like to report (moderate) success! I have attached the file for anyone who is on 10.9 to use. (I am running 10.9.5)

Please be aware of the following;

Unlike Fabioroberto's screenshot of the console, showing that the GPU power state has changed, NOTHING showed up for me in 10.9 so i have no solid way of knowing if this is working. I am concluding that it works because i played Little Inferno and Dead Space 2 (Both with the highest graphics settings) for about 20-50mins total and not one crash. Cinebench also ran fine, at a lovely smooth 10FPS (hahahaha!)

Download: https://www.dropbox.com/s/zij5rsmjl2eem9a/AppleGraphicsPowerManagement.kext.zip?dl=0

Unzip the .kext file and install file with a Kext installation utility (such as Kext Wizard) into /System/Library/Extensions and be sure to backup the original!

I was originally going to replace the capacitor but i didnt realize until it was too late that the capacitor is on the other side of the logic board, meaning the whole logic board will need removed 😵 so im going to stick with the Kext fix until either i decide to just replace the capacitor, or if the fix ever stops working.

Thanks again to Fabioroberto!

 

[fabioroberto]

Greetings all! I just want to thank Fabioroberto for their kext fix! I didnt really want to goto Yosemite so i thought there was no harm in trying this on 10.9 and i'd like to report (moderate) success! I have attached the file for anyone who is on 10.9 to use. (I am running 10.9.5)

Please be aware of the following;

Unlike Fabioroberto's screenshot of the console, showing that the GPU power state has changed, NOTHING showed up for me in 10.9 so i have no solid way of knowing if this is working. I am concluding that it works because i played Little Inferno and Dead Space 2 (Both with the highest graphics settings) for about 20-50mins total and not one crash. Cinebench also ran fine, at a lovely smooth 10FPS (hahahaha!)

Download: https://www.dropbox.com/s/zij5rsmjl2eem9a/AppleGraphicsPowerManagement.kext.zip?dl=0

Unzip the .kext file and install file with a Kext installation utility (such as Kext Wizard) into /System/Library/Extensions and be sure to backup the original!

I was originally going to replace the capacitor but i didnt realize until it was too late that the capacitor is on the other side of the logic board, meaning the whole logic board will need removed 😵 so im going to stick with the Kext fix until either i decide to just replace the capacitor, or if the fix ever stops working.

Thanks again to Fabioroberto!

Yes! Great news. Happy for you.
Thank you for sharing the kext.
🙂

 

[dorin1975]

New os , new kext ? Can someone check if it is ok to update to macOS Sierra 10.12.2 ?

 

[fabioroberto]

https://forums.macrumors.com/thread...010-whats-the-best-fix.1890097/#post-23312990
add 10.12.2 .kext

 

[garyp11]

[doublepost=1479961123][/doublepost]Capacitor - $3.27
Installation - $125
Fixing your MBP when the boyz at the jeanyus bar didn't know what they were talking about - priceless

Okay, it's been a week since I had the capacitor replaced, and I've had no kernel panics since. Winnah, winnah, chicken dinnah! I'm running an Apple Cinema Display external monitor, and it's working fine.

Here's the capacitor link,
https://www.digikey.com/product-detail/en/taiyo-yuden/PMK325AC6337MM-T/587-3976-1-ND/4950530.

It's non-tantalum with the small footprint that doesn't require scraping the logic board as referenced in other posts. I had it installed by Lou at DataLogic Computer Services in Orange County, CA. He's at 714-241-1913, in case anyone wants to contact him. Below is a pic of the board with the new capacitor in place and the old one removed.

Thanks again!

View attachment 674426

Thanks to the software (fabioroberto) and hardware (iMacC2D) solutions that have been posted here.
I'm posting another commercial diagnosis and repair source for replacing the capacitor (in addition to what Cyman Sez posted above) if you can't do it yourself.

Background:
Apple replaced my mid-2010 logic board under warranty for the problem in this forum in 2012. That "fixed" the problem for 13 months until the same issue came up again. Apple would not replace the 2nd failed board, so I've been dealing with the crashing computer for the past 3 years. I've periodically looked for solutions and hadn't found a solid solution until stumbling across these posts in November 2016. I went the hardware solution route (after downloading the CineBench graphics benchmark program mentioned above, which always crashed my Mac between 1 to 20 seconds into the OpenGL benchmark test).

Hardware solution:
So, I wanted to post another source for a hardware solution for those (like myself, not capable of replacing the capacitor): Rossman Repair Group on New York City:
https://www.rossmanngroup.com/board-repair/

Cost: $325, includes return USPS priority mail
I'd rate them 4/5 (assuming the fix is permanent, poor customer service (see comments below) drops them from 5/5 to 4/5, see below for why). In 3 months I won't be thinking about the poor customer service if I no longer have crashes! However, it was nerve racking to send my laptop away to NYC and then not able to get them on the phone once they had the laptop. So I'd use them again, but would not expect 5/5 customer service.

Result:
So, got the laptop back today. Ran the CineBench benchmark and it ran the entire thing (60 second) without a crash. I'm hopeful that the problem is indeed fixed "forever". The downside (besides the price) is that the Rossman customer service is not so hot (took 2 times longer to fix (8 business days) than what I was told (3-5 business days) when I first called in. In addition, when I started calling to check after 4 days of no activity on the status link they sent, I was told it was fixed and I'd get a link to pay that night. That didn't happen for another 3 business days (5 on the calendar). Followup phone calls went to voice mail which was full so you couldn't leave a message. Not exactly a warm and fuzzy approach to customer service.

I live in the Denver area and couldn't find anyone qualified to do the capacitor replacement in the area. However, one company in Denver had high praise for Rossman Repair. He's used them for several years to do board level repairs for his customers in the area. Louis Rossman has posted videos discussing and showing the diagnosis and actual repair of this graphics/capacitor issue which sold me on going with him and his company. you can check out a youtube video he posted of a mid-2010 capacitor repair (13 min long) at:

or another diagnosis and repair of the same problem on another mid-2010 mac laptop (30 min long) at:

So, thanks again to all who've provided 2 fixes to a problem Apple should have handled in a better fashion!

 

[dswelch]

https://forums.macrumors.com/thread...010-whats-the-best-fix.1890097/#post-23312990
add 10.12.2 .kext

I am wondering if I might get some direction about fixing the incessant crashing of my mid-2010 Macbook Pro 6,2 (IntelHD and Nvidia 330M). I ran the CineBench and, as expected, it prompted my Mac to crash. I am currently running OS Capitan. I have read through the thread here but I am not sure if I have to unload Capitan, or what is the quickest way to fix. Can anyone help?
Thanks,
dswelch

 

[fabioroberto]

I am wondering if I might get some direction about fixing the incessant crashing of my mid-2010 Macbook Pro 6,2 (IntelHD and Nvidia 330M). I ran the CineBench and, as expected, it prompted my Mac to crash. I am currently running OS Capitan. I have read through the thread here but I am not sure if I have to unload Capitan, or what is the quickest way to fix. Can anyone help?
Thanks,
dswelch

two options:
1.You can try the kext fix quickly, installing the kext edited (first post page). Requeriments for this is the SIP disabled.
https://forums.macrumors.com/thread...ats-the-best-fix.1890097/page-2#post-23344369

2. Also, you can replace the capactior to the hardware fix.

 

[TalanTalanT]

Hello!
Thank you for your decision to editing kext.
Everything works except for the moment when I connect to an external monitor.
I think the problem is that it is not loaded kext.
Here writes terminal:
MacBook-Pro:~ root# kextutil /System/Library/Extensions/AppleGraphicsPowerManagement.kext
Diagnostics for /System/Library/Extensions/AppleGraphicsPowerManagement.kext:
Code Signing Failure:
code signature is invalid kext-dev-mode allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext "/System/Library/Extensions/AppleGraphicsPowerManagement.kext"
kext signature failure override allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext "/System/Library/Extensions/AppleGraphicsPowerManagement.kext"

Can this help me to load a file when i connect to an external monitor?
Thanks in advance!

P.S. yes, it is Google Translate🙂

 

[dswelch]

two options:
1.You can try the kext fix quickly, installing the kext edited (first post page). Requeriments for this is the SIP disabled.
https://forums.macrumors.com/thread...ats-the-best-fix.1890097/page-2#post-23344369

2. Also, you can replace the capactior to the hardware fix.

Thanks Fabioroberto. I did the install correctly (I think) and have run the Cinebench and this time it completed it with no crashing. Is this a good indication that the installation worked? Like I stated in my initial message, prior to the fix the CineBench did cause it to crash. Can someone tell me in layman's terms exactly what caused this stability issue on this platform (mid-2010 MacBook pro) and what the fix exactly has done? Thanks!

 

[fabioroberto]

Thanks Fabioroberto. I did the install correctly (I think) and have run the Cinebench and this time it completed it with no crashing. Is this a good indication that the installation worked? Like I stated in my initial message, prior to the fix the CineBench did cause it to crash. Can someone tell me in layman's terms exactly what caused this stability issue on this platform (mid-2010 MacBook pro) and what the fix exactly has done? Thanks!

Great.
Yes, the problem of the Gpu-panics is not the bad GPU how many people think. Problem is the voltage on Framebuffer regulator PP1V in the logic board depends to an tantalum capacitor very very fragile. So, when voltage change from 1.05v to 1.806 the capacitor fails. The kext fix works keeping the gpu state into 1.05v always.
[doublepost=1482199312][/doublepost]

Hello!
Thank you for your decision to editing kext.
Everything works except for the moment when I connect to an external monitor.
I think the problem is that it is not loaded kext.
Here writes terminal:
MacBook-Pro:~ root# kextutil /System/Library/Extensions/AppleGraphicsPowerManagement.kext
Diagnostics for /System/Library/Extensions/AppleGraphicsPowerManagement.kext:
Code Signing Failure:
code signature is invalid kext-dev-mode allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext "/System/Library/Extensions/AppleGraphicsPowerManagement.kext"
kext signature failure override allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext "/System/Library/Extensions/AppleGraphicsPowerManagement.kext"

Can this help me to load a file when i connect to an external monitor?
Thanks in advance!

P.S. yes, it is Google Translate🙂

Invalid signature is expected.
To check: About this Mac -> System report -> (Software) Extensions, if AppleGraphicsPowerManagement.kext was loaded.
like this: https://dl.dropboxusercontent.com/u/35721057/loaded.png
Any external monitor will invoke to discrete gpu, this is a hardware implementation, so, the hardware has priority to change the gpu state.

 

[dswelch]

Great.
Yes, the problem of the Gpu-panics is not the bad GPU how many people think. Problem is the voltage on Framebuffer regulator PP1V in the logic board depends to an tantalum capacitor very very fragile. So, when voltage change from 1.05v to 1.806 the capacitor fails. The kext fix works keeping the gpu state into 1.05v always.
[doublepost=1482199312][/doublepost]
Invalid signature is expected.
To check: About this Mac -> System report -> (Software) Extensions, if AppleGraphicsPowerManagement.kext was loaded.
like this: https://dl.dropboxusercontent.com/u/35721057/loaded.png
Any external monitor will invoke to discrete gpu, this is a hardware implementation, so, the hardware has priority to change the gpu state.

Thanks fabioroberto! So far, so good and no crashes. Prior to this fix, my computer would reliably crash several times during a 30 min session. Does maintaining the gpu state at 1.05v result in decreased performance versus one that properly is able to function at both voltages?

 

[fabioroberto]

Thanks fabioroberto! So far, so good and no crashes. Prior to this fix, my computer would reliably crash several times during a 30 min session. Does maintaining the gpu state at 1.05v result in decreased performance versus one that properly is able to function at both voltages?

The gpu performance is around 70% (max). The g-states 1 and 0 are to high performance, when really is needed. Think positive! this maximize performance (if comparate with Intel HD) and the battery consumption. 😉

 

[dswelch]

The gpu performance is around 70% (max). The g-states 1 and 0 are to high performance, when really is needed. Think positive! this maximize performance (if comparate with Intel HD) and the battery consumption. 😉

Thanks for explaining it to me. Thinking positive, I actually now have a Mac that functions and doesn't repeatedly crash....rendering the machine essentially useless to me. I am very appreciative of your help!

 

[fabioroberto]

Thanks for explaining it to me. Thinking positive, I actually now have a Mac that functions and doesn't repeatedly crash....rendering the machine essentially useless to me. I am very appreciative of your help!

🙂
Cheers!

 

[kohsamui100]

What a great thread !

I've been struggling with this issue on my mid-2010 since I bought it (used) 2 years ago. I know it worked with no issues using Snow Loepard, and the restart issues has shown up once upgrading the OS... But this as well could only be because Snow Leopard actually refused to install most of the recent app versions of the music software I needed, and most crashes (on the higher OS) simply occur while they're in use... gfxcardstatus didn't work, as I realized the system can force a GPU even while it's running. Heard so much about the reballing/reflowing/rebullshit thing, and decided to sell the mac for peanuts. It was a totally different issue which led me into this forum when I stumbled upon this amazing thread !! I've been running the KEXT fix for a few hours now and no crashes so far, except when I try to start the system with a secondary monitor plugged in....

I'm running 10.12.2 (Sierra) and used fabiorobeto's "quick" procedure: Booting to Recovery HD, from Terminal setting SIP to Off, and then dragging the 10.12.2 KEXT onto KextDrop. Automatic Switching is set to On as recommended. Thanks fabioroberto for this great and clever workaround ! I can't however (as other reported already) see anything in the Console regarding GFX0 and/or g-state...

As an electrician for audio equipment, I always come across faulty tantalum caps - which is why Louise's explanation doesn't really surprise me !The tant. rating is only 2v, too close to the 1.8v rail it's positioned at... no wonder.

So big big thanks to Louis Rossmann for his great help and of course the constant support to the Macbook community !! and of course to japasetelagoas for bringing this in !! I think this thread should be really public somewhere, or at least summarized as a page so people who look for a solution can find it easily.

However, what I do not understand, is how it's possible that you guys are replacing the polarized cap with a non polarized one (and it still works). I would usually replace a tant. for tant. or a tant. for an electrolyte, but never a polarized cap for a non-polarized one... what am I missing ?

I have just ordered two tantalums in different physical sizes, 330uf 2v and 330uf 4v, and also the same type of electrolytic 330uf/2v cap mentioned here earlier (taken from a dead board). I ordered a few types so I have a few options while at it - based on which one can fit easier...

I'm leaning towards replacing the faulty tant. with a fresh tant., or at max. for a polarized electrolytic. Would that be correct ? I think I'm going to use the 4v rated once, so it takes longer for it to fail (if at all).

I was also wondering - will the SIP be set On again, if I switch out the existing hard drive for a new one (or place a new OS image on it) ? I mean - is the setting kept in the firmware or is it software based (and as such, loaded each time as the OS restarts) ?

 

[giammabegood]

Hi guys! i'm writing from Italy, recently i've bought this macbook: 15" 2.4GHz i5 with nvidia gt330m with 256 mb vram id 0x0a29.
I've bought from second hand, for now i'm using it with gfxCardStatus always putted on integrated only and with that everything is ok.
But reading this thread i've decided to replace that capacitor.
So can anyone tell me for my laptop which is the best capacitor that i can find to replace that one who failed?
I mean what kind of capacitor can i use, ceramic, electrolytic, polymer..? or is it indifferent and the only spec requested are 330µF on 2V ?

I was thinking to buy this one http://it.farnell.com/rubycon/2swz3...smd/dp/2346112?MER=bn_browse_3TP_LastViewed_1
is it good in your expert opinion?

Thank you, fabioroberto and imacC2c i think that you both will save a lot of macbook pro!

 

[fabioroberto]

What a great thread !

I've been struggling with this issue on my mid-2010 since I bought it (used) 2 years ago. I know it worked with no issues using Snow Loepard, and the restart issues has shown up once upgrading the OS... But this as well could only be because Snow Leopard actually refused to install most of the recent app versions of the music software I needed, and most crashes (on the higher OS) simply occur while they're in use... gfxcardstatus didn't work, as I realized the system can force a GPU even while it's running. Heard so much about the reballing/reflowing/rebullshit thing, and decided to sell the mac for peanuts. It was a totally different issue which led me into this forum when I stumbled upon this amazing thread !! I've been running the KEXT fix for a few hours now and no crashes so far, except when I try to start the system with a secondary monitor plugged in....

I'm running 10.12.2 (Sierra) and used fabiorobeto's "quick" procedure: Booting to Recovery HD, from Terminal setting SIP to Off, and then dragging the 10.12.2 KEXT onto KextDrop. Automatic Switching is set to On as recommended. Thanks fabioroberto for this great and clever workaround ! I can't however (as other reported already) see anything in the Console regarding GFX0 and/or g-state...

As an electrician for audio equipment, I always come across faulty tantalum caps - which is why Louise's explanation doesn't really surprise me !The tant. rating is only 2v, too close to the 1.8v rail it's positioned at... no wonder.

So big big thanks to Louis Rossmann for his great help and of course the constant support to the Macbook community !! and of course to japasetelagoas for bringing this in !! I think this thread should be really public somewhere, or at least summarized as a page so people who look for a solution can find it easily.

However, what I do not understand, is how it's possible that you guys are replacing the polarized cap with a non polarized one (and it still works). I would usually replace a tant. for tant. or a tant. for an electrolyte, but never a polarized cap for a non-polarized one... what am I missing ?

I have just ordered two tantalums in different physical sizes, 330uf 2v and 330uf 4v, and also the same type of electrolytic 330uf/2v cap mentioned here earlier (taken from a dead board). I ordered a few types so I have a few options while at it - based on which one can fit easier...

I'm leaning towards replacing the faulty tant. with a fresh tant., or at max. for a polarized electrolytic. Would that be correct ? I think I'm going to use the 4v rated once, so it takes longer for it to fail (if at all).

I was also wondering - will the SIP be set On again, if I switch out the existing hard drive for a new one (or place a new OS image on it) ? I mean - is the setting kept in the firmware or is it software based (and as such, loaded each time as the OS restarts) ?

Because this especific circuit design do not requires the tantalum usage specifically.
The coil L9560 output from PP1V8 framebuffer regulator has another one smd ceramic non palarized cap connected in parallel. The original design using this tantalum was underestimated. Proof of that, is the fail ever and ever in this specific cap. It's working at the limit to your requirement usage, obviously.
Otherthing, the Snow Leopard OS X did not require much power graphic, but the next (Lion and new ones..) they started to require more and more graphic power, so, more stress to this cap specifically.
So it, the panics started to occur more frequently (material degradation).

But, this is a specific case, and, therefore, tantalum and aluminium are not interchangeable in a circuit (good design), so your comment about ceramics replacing tantalum is correct.


To replacement c9560, I like this one, works great:
Aluminum Polymer Capacitor (polarized):
https://industrial.panasonic.com/ww/products/capacitors/polymer-capacitors/sp-cap/sx/EEFSX0E331ER
[doublepost=1482376032][/doublepost]

Hi guys! i'm writing from Italy, recently i've bought this macbook: 15" 2.4GHz i5 with nvidia gt330m with 256 mb vram id 0x0a29.
I've bought from second hand, for now i'm using it with gfxCardStatus always putted on integrated only and with that everything is ok.
But reading this thread i've decided to replace that capacitor.
So can anyone tell me for my laptop which is the best capacitor that i can find to replace that one who failed?
I mean what kind of capacitor can i use, ceramic, electrolytic, polymer..? or is it indifferent and the only spec requested are 330µF on 2V ?

I was thinking to buy this one http://it.farnell.com/rubycon/2swz3...smd/dp/2346112?MER=bn_browse_3TP_LastViewed_1
is it good in your expert opinion?

Thank you, fabioroberto and imacC2c i think that you both will save a lot of macbook pro!

this one is same as original.
Others:
https://forums.macrumors.com/thread...ats-the-best-fix.1890097/page-9#post-24051006

 

[kohsamui100]

Thanks fabioroberto, your hack works great so far !

Non of the apps which used to crash have been causing any crashes so far.

btw, do you think it's easy to place a 7mm cap of the one you mentioned (polarized, non-tantalum) in place of the existing one ? I'm not sure I'm "ok" with scrapping the board, would just taking out two thin leads from the board to the cap terminals, fit ?

 

[fabioroberto]

Thanks fabioroberto, your hack works great so far !

Non of the apps which used to crash have been causing any crashes so far.

btw, do you think it's easy to place a 7mm cap of the one you mentioned (polarized, non-tantalum) in place of the existing one ? I'm not sure I'm "ok" with scrapping the board, would just taking out two thin leads from the board to the cap terminals, fit ?

Great news with kext fix!

well, to soldering you have two other ways
like this:
https://www.dropbox.com/s/zk9m5j41gkstf1e/no scrapping.png?dl=0
adapting one wire (negative polarity)
or using one other model, like the LT Series. This model has two negative points.
https://industrial.panasonic.com/cdbs/www-data/pdf/ABE0000/ABE0000C57.pdf

 

[DG82016]

Great news with kext fix!

well, to soldering you have two other ways
like this:
https://www.dropbox.com/s/zk9m5j41gkstf1e/no scrapping.png?dl=0
adapting one wire (negative polarity)
or using one other model, like the LT Series. This model has two negative points.
https://industrial.panasonic.com/cdbs/www-data/pdf/ABE0000/ABE0000C57.pdf

First, many thanks to fabioroberto for all the help.
I have applied your kext fix to a mid-2010 MBP running OS 10.11.6. Looking at Console, the graphics state stays at 2, just as it should. I have run video streaming, audio streaming, etc., and have had no kernel panics since the fix. So again, thanks!
My questions are:

• Do you know if this fix will work with Sierra (10.12.2)? Or should I just stay with El Capitan?
• As long as the kext fix is working, is there any reason to change the capacitor discussed above?

 

[Bruno09]

Hi all,

I have just replaced the c9560 capacitor for a polarized electrolytic one (330 µF).

Sadly, this does NOT solve the problem.

Any idea ?

Thank you !

EDIT : I just watched the first video in post#230 : do I need to replace the C7771 too ?
Or is this for a Mid 2009 17" model only ?

Mine is a Macbook Pro 6,2 15" Mid 2010 with nvidia gt330m GPU.

 

[fabioroberto]

First, many thanks to fabioroberto for all the help.
I have applied your kext fix to a mid-2010 MBP running OS 10.11.6. Looking at Console, the graphics state stays at 2, just as it should. I have run video streaming, audio streaming, etc., and have had no kernel panics since the fix. So again, thanks!
My questions are:

• Do you know if this fix will work with Sierra (10.12.2)? Or should I just stay with El Capitan?
• As long as the kext fix is working, is there any reason to change the capacitor discussed above?

My first post (page 1) has kext to Sierra.
Cap. replacement it's only if you know how to do it and be safe when using one external monitor.. Performance difference to normal usage is imperceptible.
[doublepost=1482728093][/doublepost]

Hi all,

I have just replaced the c9560 capacitor for a polarized electrolytic one (330 µF).

Sadly, this does NOT solve the problem.

Any idea ?

Thank you !

EDIT : I just watched the first video in post#230 : do I need to replace the C7771 too ?
Or is this for a Mid 2009 17" model only ?

Mine is a Macbook Pro 6,2 15" Mid 2010 with nvidia gt330m GPU.

No. Only c9560.
What is the capacitor model?
The problem is not if it is a polarized or not.
Check if the soldering point is good, if it's clean all the contacts points (specially c9560, Q9560, L9560, R5413), and the polarity is correct.
I am considering that the capacitor is working perfectly.

Requirements:
(330µF 2V (or >2v ), 20% tolerance, -55°C ~ 105°C, ESR)

 

[Bruno09]

Hi,

thank you for your response.

The capacitor I used is this one :

Panasonic, radial, 330 µF, 6.3 V
Tolerance : +/- 20%

Spoiler: Capacitor

Product Information

• CAPACITOR, RADIAL, 330UF, 6.3V
• Product Range: PANASONIC - FM Series
• Capacitance: 330µF
• Capacitance Tolerance: ± 20%
• Voltage Rating: 6.3V
• Diameter: 6mm
• Height: 11.2mm
• Capacitor Terminals: Radial Leaded
• Lead Spacing: 2.5mm
• Life Time @ Temperature: 2000 hours @ 105°C
• Operating Temperature Min: -40°C
• Operating Temperature Max: 105°C
• External Diameter: 6mm
• External Length / Height: 11.2mm
• Impedance: 0.13ohm
• Impedance Temperature: 20°C
• Lead Diameter: 0.5mm
• Lead Length: 17mm
• Leakage Current: 0.01µA
• No. of Pins: 2
• Operating Life Temperature: 105°C
• Operating Lifetime: 2000h
• Operating Temperature Range: -40°C to +105°C
• Ripple Current AC: 455mA
• Ripple Current Temperature: 105°C
• Series: FM
• Terminal Type: Wire Ended
• Tolerance +: 20%
• Tolerance -: 20%
• Voltage Rating V DC: 6.3V

Not very aesthetic but should work : http://hpics.li/c276702

I had no problem removing the old tantalum capacitor and fitting the new one.

I might open the Macbook again and check the soldering, that looked fine in my opinion, though.

But question : does replacing the capacitor work when the kext fix does NOT work with that particular Macbook Pro ?

 

[fabioroberto]

Hi,

thank you for your response.

The capacitor I used is this one :

Panasonic, radial, 330 µF, 6.3 V
Tolerance : +/- 20%

Not very aesthetic but should work : http://hpics.li/c276702

I had no problem removing the old tantalum capacitor and fitting the new one.

I might open the Macbook again and check the soldering, that looked fine in my opinion, though.

But question : does replacing the capacitor work when the kext fix does NOT work with that particular Macbook Pro ?

Wrong capacitor. This model will not work properly (many reasons).
This model is slow, resistive and so on.
You need a new one SMD ceramic type.
Replace this cap to the old tantalum cap. Try the kext fix (read my old posts to check if the kext is loaded correctly). If work successfully, the new smd ceramic cap will work. 😉

Cheers!

 

[Bruno09]

Thank you for your response.

I will order the right capacitor and replace the wrong one.

I actually have TWO Macbook Pro 6,2 with the same problem.
One is "fixed" with the kext, I did not replace the capacitor yet.
As for the other one (capacitor replaced), the "kext fix" works partially : the MBP works better than before, but still crashes when I open a photo in Photos, for example.