Not sure if anyone has a clue about this drive from 1993(!): WDAC2250-00F

But drive spins up, shows ready (on PC3K). There's no clicking, but shows 0MB.

In clean room, can see 3 of the 4 platter surfaces which appear
intake. Heads are LARGE and all 3 are present. Also filter is clean.

SA Structure Test is passed okay.

Modules are read okay too.

No such thing as S.M.A.R.T. in 1993..

I'm thinking this needs a heads transplant. But where to find such an old Donor?

Anybody want to add to this? Or concur?

Thanks!!
--------------------------------------------------DETAILS-------------------------------------
CONFIGURATION GENERAL INFORMATION:
**************************************************************************************************
Device type......................................................... : Fixed device and/or controller
Device interface.................................................... : N/D
Rotation Rate....................................................... : N/D

Main data
**************************************************************************************************
Model............................................................... : WDC AC2250F
Serial number....................................................... : WD-WT2660221958
Firmware............................................................ : 06.15I01

Current Logical Parameters
**************************************************************************************************
Cylinders........................................................... : 1 010 0
Heads............................................................... : 9 0
Sectors............................................................. : 55 0
Capacity............................................................ : 499 950 244.1 MB
Capacity available in LBA Mode...................................... : 0 MB
Capacity available in LBA 48 Mode................................... : 0 MB

Capabilities
**************************************************************************************************
Standby timer values supported...................................... : [NO]
IORDY supported..................................................... : [NO]
IORDY disabled...................................................... : [NO]
LBA supported....................................................... : [NO]
DMA supported....................................................... : [YES]

PIO MODE
**************************************************************************************************
PIO MODE 3 Support.................................................. : [NO]
PIO MODE 4 Support.................................................. : [NO]

Available DMA Mode
**************************************************************************************************
Multiword DMA Mode 0................................................ : [NO]
Multiword DMA Mode 1................................................ : [NO]
Multiword DMA Mode 2................................................ : [NO]

Active UDMA/33 modes
**************************************************************************************************
Ultra DMA/33 Mode 0................................................. : [NO]
Ultra DMA/33 Mode 1................................................. : [NO]
Ultra DMA/33 Mode 2................................................. : [NO]
Ultra DMA/33 Mode 3................................................. : [NO]
Ultra DMA/33 Mode 4................................................. : [NO]
Ultra DMA/33 Mode 5................................................. : [NO]
Ultra DMA/33 Mode 6................................................. : [NO]

Timing
**************************************************************************************************
Minimal multiword DMA cycle time.................................... : 0 ns
Recommended multiword DMA cycle time................................ : 0 ns
Minimal multiword PIO cycle time w/o stream control................. : 0 ns
Minimal multiword PIO cycle time with IORDY......................... : 0 ns

Supported standards
**************************************************************************************************
ATA - 3............................................................. : [NO]
ATA - 4............................................................. : [NO]
ATA - 5............................................................. : [NO]
ATA - 6............................................................. : [NO]

Security system
**************************************************************************************************
password set........................................................ : [NO]
HDD Locked.......................................................... : [NO]
HDD Frozen.......................................................... : [NO]
wrong password count exceeded....................................... : [NO]
security erase support.............................................. : [NO]
security level...................................................... : High

POWER MANAGEMENT
**************************************************************************************************
Mandatory power manement............................................ : [NO]
Power up standby.................................................... : [NO]
Advanced power manement............................................. : [NO]
Advanced power manement value....................................... : 0

AUTOMATIC Acoustic Management
**************************************************************************************************
Feature set......................................................... : Not supported
Current value....................................................... : 0
Vendor recomended value............................................. : 0

Supported Command Sets
**************************************************************************************************
NOP................................................................. : Not supported
READ BUFFER......................................................... : Not supported
WRITE BUFFER........................................................ : Not supported
Host Protected Area feature set..................................... : Not supported
DEVICE RESET command................................................ : Not supported
SERVICE interrupt................................................... : Not supported
Release interrupt................................................... : Not supported
Look-ahead.......................................................... : Not supported
Write cache......................................................... : Not supported
PACKET Command feature set.......................................... : Not supported
Power Management feature set........................................ : Not supported
Removable Media feature set......................................... : Not supported
Security Mode feature set........................................... : Not supported
SMART feature set................................................... : Not supported
FLUSH CACHE command................................................. : Not supported
Device Configuration Overlay feature set............................ : Not supported
SET MAX security extension.......................................... : Not supported
SET FEATURES subcommand required to spinup after power-up........... : [NO]
Power-Up In Standby feature set..................................... : Not supported
Removable Media Status Notification feature set..................... : Not supported
DOWNLOAD MICROCODE.................................................. : Not supported

Device Sector Info
**************************************************************************************************
Multiple logical sectors per physical sector........................ : [NO]
Logical Sector Longer than 256 Words................................ : [NO]
Logical sectors per physical sector................................. : 1
Alignment of logical blocks within a larger physical block.......... : 0
Words per Logical Sector............................................ : 256 512 b
----------------------------------------------------------------------------------------------

you were able to backup the SA ?

Lesson learned!

Such an old drive like this ONLY works properly with a 40-pin IDE cable!

-the 80-pin IDE cable won't work; maybe someone here knows why
and could enter it below, for completeness.

Problem solved, went from 0MB to 255MB

http://www.wdc.com/en/products/legacy/Legacy.asp?r=3

ISTM that your tool was calculating the capacity by referring to those Identify Device words that report the number of sectors in LBA mode. In fact this old model uses CHS addressing and predates LBA mode.

The difference in the 80-pin and 40-pin cables is in the /PDIAG/CBLID signal (pin #34).

http://www.ele.uri.edu/courses/ele408/s ... de/IDE.pdf



http://www.pcguide.com/ref/hdd/if/ide/c ... e80-c.html

_________________
A backup a day keeps DR away.