Quite old post...
... looks like these days I land on old posts

, sorry for this.
I have got two identical 6H500R0
what says
cheadledatarecovery few posts above "
DiamondMax 11 doesn't have adaptive data features on it as far as I know.", looks correct.
As a matter of facts, I swapped the boards between the two drives and it works fine, there are not clicking-madly-heads. The issue I have is another

.
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At spinup time they sounds identically (same identical timing in any operation)
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Both are recognized by the BIOSbut later, testing them one-by-one, one hangs the windows boot, while the other doesn't and windows finishes booting fine.
You may bet on it: I need to read the one that is not working fine

Looks like this is some flavor of SA' issue, isn't it?
The board it is not... as said above I swapped them and the behavior is still the same
- the "healthy" drive works with both boards.
- the "faulty" drive hangs the windows' boot, with both the boards.
note: windows boot hangs but the hdds led is not still on, it does small light blinks like some kind of little repeated reads.
note: there isn't any kind of head-clicking
I'm wondering what can be done at diagnostic level with MHDD with/for this drive, maybe also attempt to clone it.
Off topic: does MHDD allow to create one drive image? I mean to one file on some spare drive or either to clone the drive to another, thank you if you have got the right parameters for this operation.
Thank you for any suggestion and or tip.
Cor