Board revisions of Maxtor DiamondMax Plus 40
Normally the DiamondMax Plus 40 comes in two flavours:
xxxxxUx series, which is limited to UDMA66
xxxxxHx series, which is capable of UDMA100
In fact there are models of the xxxxxUx carrying already the new drive electronic.
These drives are limited to UDMA66 by firmware.
You can download a tool to activate UDMA100 (mode 5) at Maxtor's website
Pictures are © c't magazin
Old board (Maxtor DRACO II / 301283100)
New board (Maxtor FISH'N M16 / 301252104)