Any way to tell for sure a Hitachi ROM version without the casing? I hope?

[Protonus]

Didn't know that the ROM version was important to spoofing.  Crud.
I have a Hitachi drive without the casing that surrounds it.  Just the guts.

Are there any markings or signs of which ROM version it is?  I think it's a v78 because I can mode B with SLAX but not the 2 wire method.   But I'd like to know for sure to eliminate trial and error if possible. 

Thanks!

[gigabite]

without the casing, if the PCB has epoxy on the SST chip then it's a 78 or 79...if it dosen't it's below a 78

gigabite

[Protonus]

Word!
It does, but it responded to SLAX and shows up in Windows, so I guess it's a 78 for sure!

[syd41]

As far as I know a 79 will also respond to slax (modeB) You just can't dump it...

[razzy26uk]

if toolbox 4.6 says cannot read from drive when trying to dump the f/w then its 0079
if it dumps it ok its a 78