Replacing the HD in the 21.5” models is not a big deal as Apple uses the 2.5” drives SMART services in the 27” series has a custom 3.5” HD drive. So in it’s self that doesn’t bother me.
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Replacing the HD in the 21.5” models is not a big deal as Apple uses the 2.5” drives SMART services. In the 27” series has a custom 3.5” HD drive. So in it’s self that doesn’t bother me.
Now the question, did you have someone put in (or out) the custom blade SSD on the back side of the logic board? Why I ask here is I suspect that may have been the cause of the discharging of the PRAM battery (prematurely).
So here’s the chain of events the system being powered (AC) gets enough power to hold its settings (on or off). But, this time you disconnected the system boxing it up for the storm. Now the PRAM battery kicks in ... after things settle down you unpack the system and bang! Nothing happens other than the high speed fan as the PRAM battery is dead
So ... if that’s correct then you’ll need to open the system up and remove the 3rd party blade SSD and replace the battery which is on the back side of the logic board as seen here marked in blue:
Replacing the HD in the 21.5” models is not a big deal as Apple uses the 2.5” drive SMART services in this series which has a custom 3.5” HD drive. So in it’s self that doesn’t bother me.
+
Replacing the HD in the 21.5” models is not a big deal as Apple uses the 2.5” drives SMART services in the 27” series has a custom 3.5” HD drive. So in it’s self that doesn’t bother me.
Now the question, did you have someone put in (or out) the custom blade SSD on the back side of the logic board? Why I ask here is I suspect that may have been the cause of the discharging of the PRAM battery (prematurely).
So here’s the chain of events the system being powered (AC) gets enough power to hold its settings (on or off). But, this time you disconnected the system boxing it up for the storm. Now the PRAM battery kicks in ... after things settle down you unpack the system and bang! Nothing happens other than the high speed fan as the PRAM battery is dead
So ... if that’s correct then you’ll need to open the system up and remove the 3rd party blade SSD and replace the battery which is on the back side of the logic board as seen here marked in blue:
This is an odd one ...
Replacing the HD in the 21.5” models is not a big deal as Apple uses the 2.5” drive SMART services in this series which has a custom 3.5” HD drive. So in it’s self that doesn’t bother me.
Now the question, did you have someone put in (or out) the custom blade SSD on the back side of the logic board? Why I ask here is I suspect that may have been the cause of the discharging of the PRAM battery (prematurely).
So here’s the chain of events the system being powered (AC) gets enough power to hold its settings (on or off). But, this time you disconnected the system boxing it up for the storm. Now the PRAM battery kicks in ... after things settle down you unpack the system and bang! Nothing happens other than the high speed fan as the PRAM battery is dead
So ... if that’s correct then you’ll need to open the system up and remove the 3rd party blade SSD and replace the battery which is on the back side of the logic board as seen here marked in blue:
[image|1195417]