Charles V said:
I'm attempting to get the drive working long enough to
recover data.from the 'clicking' drive. I have a 28400 ---
although this is an 8Gig drive, the circuit board is
physically identical with the one on the 26400, the same
ICs and identical trace layout.
Unfortunately, changing boards did not solve the clicking
problem. I'm now faced with the decision as to whether to
attempt to switch drive R/W arms. Both drives are two-platter
designs but I'm not sure that the 8 gig R/W head is the same
as the one on the 6 gig drive. I've not yet removed the
sealing tape from the 28400.
Don't do it because opening the drive will instantly increase the cost
of data recovery by a great deal and will not only quickly contaminate
the drive with dust but by removing the platters you'll destroy the
servo alignment of all but either the very top or very bottom platter,
making it impossible to read anything without special equipment.
Unless you have a friend in the drive repair and data recovery
business, the only practical solution for you is to find another 26400
board because it's possible that the firmware for a 28400 is
programmed differently, such as for 4 heads rather than 3. If you
leave the drive alone, all your data will be lost, but if you open the
drive you'll lose the drive as well.