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dsteele
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Joined: 03 Mar 2007
Posts: 3
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 Posted: Thu Mar 22, 2007 4:21 pm Post subject: WD800 DCM - how to rewrite or transplant? |
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Hello.
I managed to find a hard drive with the same board as my dead one on eBay, and just performed a control board transplant. Unfortunately, it looks like I now need to get the DCM numbers to "match".
The new board looks good in all other respects - the drive spins up normally, no strange noises... it just doesn't correctly detect in my machine, which is why I suspect the DCM is the problem;
The original drive is a WD800JB-00ETA0 with DCM # DSCHCTJAH
I took the board off a replacement drive, model WD800JB-00ETA0 with DCM # HSBHCTJCH
Three stinkin' letters difference.
At this point I'm rather stuck - assuming the problem is the firmware on the new board needing to match the original board's settings, what's the easiest way to correct this? Is there a way to do it via software perhaps? |
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LarryB
Deadharddrive regular
Joined: 26 Sep 2006
Posts: 18
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| Posted: Fri Mar 23, 2007 2:42 pm Post subject: |
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If your PCB matches, just swap the Flash Memory chip and your drive will work again.
The DCM (Drive Configuration Matrix) number pertains to the drives configuration and is mostly used for matching media, pre-amp and head types. |
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dsteele
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Joined: 03 Mar 2007
Posts: 3
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| Posted: Sun Mar 25, 2007 9:27 pm Post subject: |
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| I'm not sure which one is the flash memory chip, nor am I all that sure on how to remove it from the dead PCB and successfully reattach it to the live one. Is there a how-to posted on the subject? |
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LarryB
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Joined: 26 Sep 2006
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