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현재 버전: Dan ,

본문:

What does the built in hardware test tell you? Restart your system and hold the 'D' key to enable it. I would recommend you use it before believing TechTool.
 
For reference: [https://support.apple.com/en-us/HT201255|Startup key combinations for Mac]
 
If you have an issue here it would likely require getting your logic board repaired or replaced.

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편집 작업: Dan ,

본문:

What does the built in hardware test tell you (restartyou? Restart your system and hold the 'D' key to enable it)?it. I would recommend you use it before believing TechTool.
What does the built in hardware test tell you (restartyou? Restart your system and hold the 'D' key to enable it)?it. I would recommend you use it before believing TechTool.
 
For reference: [https://support.apple.com/en-us/HT201255|Startup key combinations for Mac]

현황:

open

원문 게시자: Dan ,

본문:

What does the built in hardware test tell you (restart your system and hold the 'D' key to enable it)? I would recommend you use it before believing TechTool.

For reference: [https://support.apple.com/en-us/HT201255|Startup key combinations for Mac]

현황:

open