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 Post subject: ST500LM021 and ST500LT012 PCB incompatibility
PostPosted: May 4th, 2018, 4:36 
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Joined: December 14th, 2013, 17:10
Posts: 210
Location: istanbul
Two drive use the same PCB that is 100729420 rev B.

The motor chip of ST500LM021's fried. That disk's 7200 RPM

Donor PCB ST500LT012 uses same Main Controller but the motor chip. That disk's 5400 RPM

swapping was unsuccessful in two attempts.

Quote:
Boot 0x10M
SpinUpTime = 00000842
TTR1 = 00000917
LED:000000BD FAddr:00007C1D
LED:000000BD FAddr:00007C1D


is this because of speed differentiation?

motor chip LM021 is HPAJG V5.

motor chip LT012 is HPAAH V5.


Attachments:
st500lm021.jpg
st500lm021.jpg [ 265.11 KiB | Viewed 6868 times ]
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