MacBook Pro (Retina, Mid 2012) A1398 heats up & turns off

[mferna14]

Hi all. I am working on MacBook Pro (Retina, Mid 2012) A1398 820-3332-A. There is no liquid spill & no physical damages on the logic board. The CPU/GPU heats sink heats up a lot & then turns off automatically. I did a re-solder job on the GPU VCORE chip U8900, but this did not help much & also updated the BIOS. Added brand new coolant compound but still the same, after about 1/2 hr, it heats up & then turns off automatically. Just asking anyone will the CPU & GPU BGA balls reflow will be suitable to rectify this problem. Any tips or help will be greatly appreciated. Thanks in advance

[MobileXT]

Re: MacBook Pro (Retina, Mid 2012) A1398 heats up & turns off

Hi all. I am working on MacBook Pro (Retina, Mid 2012) A1398 820-3332-A. There is no liquid spill & no physical damages on the logic board. The CPU/GPU heats sink heats up a lot & then turns off automatically. I did a re-solder job on the GPU VCORE chip U8900, but this did not help much & also updated the BIOS. Added brand new coolant compound but still the same, after about 1/2 hr, it heats up & then turns off automatically. Just asking anyone will the CPU & GPU BGA balls reflow will be suitable to rectify this problem. Any tips or help will be greatly appreciated. Thanks in advance

Try replace the heatsink sometimes solve the problem for overheating issue.