JH>Here's the strange part - - per its label, the Drive is a WD Caviar 5.1
JH>GB,  Model AC35100,  CHS of 10672/15/63 (LBA Translation 667/240/63?).
JH>But my mainboard autodetects it as 11184/15/63, and recommends an LBA
JH>translation of 699/240/63. When I run the WD diagnostics, it detects the
JH>HDD as 5.4 GB, WD Model AC35400L.  The WD utility "write
zeroes" seems
JH>to work on it, but takes a loooong time - a couple hours to get thru the
JH>first couple percent of the drive.  FDISK still wouldn't work after
JH>that.

JH>My only SWAG so far is that the Make, model, chs etc. of the drive are
JH>stored on a PROM or EPROM chip on the circuit board, and that someone
JH>swapped circuit boards on this drive, in hopes of making a Frankenstein
JH>and bringing it to life.

 The Drive information is in a PROM/EPROM chip on the Hard Drive
 circuit card. IF that dosen't agree with the label on the drive there
 has been a board swap at one time.
Would any of the other WD diagnostic routines run?
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 þ SLMR 2.1a þ This note from El Cajon California USA