Ana içeriğe geç
Yardım

Güncel sürümün sahibi: Sam Freeman ,

Metin:

Hey Jared, this is sadly a common problem with A1286 15" MacBook Pros from 2010 - I have an exact same MacBook Pro with the exact same problem :(
 
Anyway, the issue is most likely caused by a faulty capacitor on the motherboard. There is a voltage rail that supplies the frame-buffer, which acts as a short-term memory bank for the graphics processor. One of the decoupling capacitors on this voltage rail is a poly-tanalum capacitor, which isn't very reliable when subjected to many heat cycles. Since this capacitor is close in proximity to the MCP chip (which does the graphics processing), it is likely to fail, resultingThis results in the frame buffer voltage rail dropping in voltage every once in a while. If the MCP'sGPU's voltage drops along this voltage rail, it stops working, resulting in the kernel panic, and sudden restart.
Anyway, the issue is most likely caused by a faulty capacitor on the motherboard. There is a voltage rail that supplies the frame-buffer, which acts as a short-term memory bank for the graphics processor. One of the decoupling capacitors on this voltage rail is a poly-tanalum capacitor, which isn't very reliable when subjected to many heat cycles. Since this capacitor is close in proximity to the MCP chip (which does the graphics processing), it is likely to fail, resultingThis results in the frame buffer voltage rail dropping in voltage every once in a while. If the MCP'sGPU's voltage drops along this voltage rail, it stops working, resulting in the kernel panic, and sudden restart.
 
You can either get a new motherboard and install it, or you can get the board repair and pay less. This isn't an easily diagnosable issue though, due to it's intermittency and the fact that most people think the "GPU" is at fault. One thing to note though, is that "reflowing" the graphics chip with heat (which is a "repair" that many places do) will temporarily keep the issue from happening, but is not a proper fix as the issue will conveniently come back again after your warrantee expires. If you do go the board repair route, make sure that they know what they're doing.
 
If you're feeling ambitious and are comfortable with rework and soldering equipment, you can replace this capacitor and see if the problem goes away.

Durum:

open

Düzenleyen: Sam Freeman ,

Metin:

Hey Jared, this is sadly a common problem with A1286 15" MacBook Pros from 2010 - I have an exact same MacBook Pro with the exact same problem :(
 
Anyway, the issue is most likely caused by a faulty capacitor on the motherboard. There is a voltage rail that supplies the frame-buffer, which acts as a short-term memory bank for the graphics processor. One of the decoupling capacitors on this voltage rail is a poly-tanalum capacitor, which isn't very reliable when subjected to many heat cycles. Since this capacitor is close in proximity to the MCP chip (which does the graphics processing), it is likely to fail, resulting in the frame buffer voltage rail dropping in voltage every once in a while. If the MCP's voltage drops along this voltage rail, it stops working, resulting in the kernel panic, and sudden restart.
 
This is sadly a cause of bad design on Apple's part, and it is more appalling that Apple hasn't recalled these MacBook Pros like they did with the 2011 models.
 
You can either get a new motherboard and install it, or you can get the board repair and pay less. This isn't an easily diagnosable issue though, due to it's intermittency and the fact that most people think the "GPU" is at fault. One thing to note though, is that "reflowing" the graphics chip with heat (which is a "repair" that many places do) will temporarily keep the issue from happening, but is not a proper fix as the issue will conveniently come back again after your warrantee expires. If you do go the board repair route, make sure that they know what they're doing.
 
If you're feeling ambitious and are comfortable with rework and soldering equipment, you can replace this capacitor and see if the problem goes away.

Durum:

open

Orijinal gönderinin sahibi: Sam Freeman ,

Metin:

Hey Jared, this is sadly a common problem with A1286 15" MacBook Pros from 2010 - I have an exact same MacBook Pro with the exact same problem :(

Anyway, the issue is most likely caused by a faulty capacitor on the motherboard. There is a voltage rail that supplies the frame-buffer, which acts as a short-term memory bank for the graphics processor. One of the decoupling capacitors on this voltage rail is a poly-tanalum capacitor, which isn't very reliable when subjected to many heat cycles. Since this capacitor is close in proximity to the MCP chip (which does the graphics processing), it is likely to fail, resulting in the frame buffer voltage rail dropping in voltage every once in a while. If the MCP's voltage drops along this voltage rail, it stops working, resulting in the kernel panic, and sudden restart.

This is sadly a cause of bad design on Apple's part, and it is more appalling that Apple hasn't recalled these MacBook Pros like they did with the 2011 models.

You can either get a new motherboard and install it, or you can get the board repair and pay less. This isn't an easily diagnosable issue though, due to it's intermittency and the fact that most people think the "GPU" is at fault.  One thing to note though, is that "reflowing" the graphics chip with heat (which is a "repair" that many places do) will temporarily keep the issue from happening, but is not a proper fix as the issue will conveniently come back again after your warrantee expires. If you do go the board repair route, make sure that they know what they're doing.

If you're feeling ambitious and are comfortable with rework and soldering equipment, you can replace this capacitor and see if the problem goes away.

Durum:

open