I have heard some say that pcb swop on 3102AT-E and 3204AT-E should or cannot work.

We took 20 MPG3102AT-E - All from 2001.03 and all 382-80C2.

We recorded 20h and found 10 drives were clear.

We recorded ROM of these 10 CLEAR drives and found two types.

[Delete this line] offset 67h was 21h in 4 cases and was 41h in other 6 cases.

[Replace with] offset 2Bh was 21h in 4 cases and was 41h in other 6 cases.

We successfully swopped pcb's in the 4 matching cases and also
in the 6 other matching cases.

Conclusion : with a bit of work and matching drives you should achieve 50% success with pcb swop with MPG3102AT-E.

Hello Fujimax:

Good job !!! But, at least in the manual, they said that if you have adaptives, it is represented by mutex byte, that is in offset 2Bh, although it's purely informative. Do you know what is the function of offset 67h ?

In "the manual" "they" must say what byte at offset 0x2B must be called "drive config" this is more explayn, also "they" must work with this byte

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best regards, vi, http://pchdd.narod.ru