WD HDD DCM Recognition for Head Swap
For DCM number, users can easily find it from the WD label and the 5th, 6th and 7th digits are connected with the physical head parameters.
DCM = Drive Configuration Matrix
Example for old models:
DCM: HSEHYV2AH
1- Motor (H)
2- Base (S)
3- Latch (E)
4- Bottom VCM (H)
5– Media (Y)
6- Headstack (V)
7- Actuator-Preamp (2)
8- Top VCM (A)
9- Separator (H)