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Aktuelle Version von: TCRS Circuit ,

Titel:

Late 2013 iMac failing ASD CPU test and shutting off

Text:

Hi all!
 
We had a late 2013 iMac come in with booting issues. It would go halfway and shut off.
 
I figured a bad update screwed things up so I reinstalled OS-X. Same thing. Ran Apple Service Diagnostic and it shut down on CPU test.
 
It would pass whetstone and fail on dhystone and linpack. To me this was open and closed CPU testfailure. Replaced the CPU and all was OK for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning.
It would pass whetstone and fail on dhystone and linpack. To me this was open and closed CPU testfailure. Replaced the CPU and all was OK for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning.
 
Given that the CPU tests were failing, I don’t know what more it could be.. Another odd thing it does is once it shuts down, it will not turn on unless you do a NVRAM reset.

Gerät:

iMac Intel 27" EMC 2639

Status:

open

Bearbeitet von: Dan ,

Titel:

Late 2013 iMac failing ASD CPU test and shutting off

Text:

Hi all!

We had a late 2013 iMac come in with booting issues. It would go halfway and shut off.

I figured a bad update screwed things up so I reinstalled OS-X. Same thing. Ran Apple Service Diagnostic and it shut down on CPU test.

It would pass whetstone and fail on dhystone and linpack. To me this was open and closed CPU test. Replaced the CPU and all was OK for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning.

Given that the CPU tests were failing, I don’t know what more it could be.. Another odd thing it does is once it shuts down, it will not turn on unless you do a NVRAM reset.

Gerät:

iMac Intel 27" EMC 2639
iMac Intel 27" EMC 2639

Status:

open

Bearbeitet von: Dan ,

Titel:

Late 2013 iMac failing ASD CPU test and shutting off

Text:

Hi all!
 
We had a late 2013 imaciMac come in with booting issues. It would go halfway and shut off. I

I
figured a bad update screwed things up so I reinstalled OSXOS-X. Same thing. Ran Apple Service Diagnostic and it shut down on CPU test. It

It
would pass whetstone and fail on dhystone and linpack. To me this was open and closed cpuCPU test. Replaced the CPU and all was okOK for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning. Given

Given
that the CPU tests were failing, I don’t know what more it could be.. Another odd thing it does is once it shuts down, it will not turn on unless you do a pramNVRAM reset.
We had a late 2013 imaciMac come in with booting issues. It would go halfway and shut off. I

I
figured a bad update screwed things up so I reinstalled OSXOS-X. Same thing. Ran Apple Service Diagnostic and it shut down on CPU test. It

It
would pass whetstone and fail on dhystone and linpack. To me this was open and closed cpuCPU test. Replaced the CPU and all was okOK for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning. Given

Given
that the CPU tests were failing, I don’t know what more it could be.. Another odd thing it does is once it shuts down, it will not turn on unless you do a pramNVRAM reset.

Gerät:

iMac Intel 27"

Status:

open

Ursprünglicher Beitrag von: TCRS Circuit ,

Titel:

Late 2013 iMac failing ASD CPU test and shutting off

Text:

Hi all!

We had a late 2013 imac come in with booting issues. It would go halfway and shut off. I figured a bad update screwed things up so I reinstalled OSX. Same thing. Ran Apple Service Diagnostic and it shut down on CPU test. It would pass whetstone and fail on dhystone and linpack. To me this was open and closed cpu test. Replaced the CPU and all was ok for a few days. It passed 21 iterations of ASD. Customer gets it back and it doesnt turn on again this morning. Given that the CPU tests were failing, I don’t know what more it could be.. Another odd thing it does is once it shuts down, it will not turn on unless you do a pram reset.

Gerät:

iMac Intel 27"

Status:

open