This is a common symptom when the dedicated GPU chip has failed as the POST process fails to complete so the system resets and tries again getting into a loop.
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This is a common symptom when the discreet GPU chip has failed as the POST process fails to complete so the system resets and tries again getting into a loop.
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Shut it down, this time on the restart quickly press the T key which will put your system into Target Disk Mode, which by passes the POST process. Did you get a FireWire or Thunderbolt Icon on the screen? If you did that proves it.
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Shut it down, this time on the restart quickly press the T key which will put your system into Target Disk Mode, which by passes the discreet GPU POST process. Did you get a FireWire or Thunderbolt Icon on the screen? If you did that proves it.
This is a common symptom when the dedicated GPU chip has failed as the POST process fails to complete so the system resets and tries again getting into a loop.
-
Shut it down, this time on the restart quickly press the T key which will put your system into Target Disk Mode, which by passes the POST process. Did you get a FireWire or Thunderbolt Icon on the screen.
+
Shut it down, this time on the restart quickly press the T key which will put your system into Target Disk Mode, which by passes the POST process. Did you get a FireWire or Thunderbolt Icon on the screen? If you did that proves it.
Not good :-{
This is a common symptom when the dedicated GPU chip has failed as the POST process fails to complete so the system resets and tries again getting into a loop.
Shut it down, this time on the restart quickly press the T key which will put your system into Target Disk Mode, which by passes the POST process. Did you get a FireWire or Thunderbolt Icon on the screen.