VOGONS


IBM WDS-3160S

Topic actions

First post, by GenkiMan_Lx

User metadata
Rank Newbie
Rank
Newbie

Hi,

I have a IBM PS/2 8557 with a scsi hdd that doesn't want to work. I looked at it and found a component burned and i am trying to find a similar one or a replacement but i need help to identify what this is.
The hard drive is a a IBM WDS-3160S, SCSI and with 160 mb. I have this computer and hdd since mid 1993 and it worked great until 2010 maybe. Then the computer was stored away and now i am trying to revive it and recover my files on the hdd.

The attachment ibm wsd3160s.jpg is no longer available

So if anyone can help identify the component with the red arrow and share what i can replace it with i would be very greatfull.

Best regards

Reply 1 of 4, by weedeewee

User metadata
Rank l33t
Rank
l33t

Looks to be on the TERMPWR line.
My guess would be a diode with a low forward voltage drop.

I doubt though that replacing that diode will fix the drive.

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
Do not ask Why !
https://www.vogonswiki.com/index.php/Serial_port

Reply 2 of 4, by GenkiMan_Lx

User metadata
Rank Newbie
Rank
Newbie
weedeewee wrote on 2023-11-05, 15:52:

Looks to be on the TERMPWR line.
My guess would be a diode with a low forward voltage drop.

I doubt though that replacing that diode will fix the drive.

Thank you for the reply.
Do you think the board is toast?

Reply 3 of 4, by weedeewee

User metadata
Rank l33t
Rank
l33t
GenkiMan_Lx wrote on 2023-11-05, 17:21:
weedeewee wrote on 2023-11-05, 15:52:

Looks to be on the TERMPWR line.
My guess would be a diode with a low forward voltage drop.

I doubt though that replacing that diode will fix the drive.

Thank you for the reply.
Do you think the board is toast?

Honestly, I can't even tell from your photo if that diode is burnt, let alone judge if the board is toast.

Does the drive still spin up ? Do you hear the heads move ?
Is the drive still detected by the scsi controller/software ?

Fact is, hard drives do die. Wether it's the electronics or the mechanics that fail.
I had an old 32MB RLL drive once from which I would've liked to recuperate some data.
Unfortunately I was too late. My drive still spins up, moves its heads, and then spins down 🙁
I can only guess at what has failed for me and that would be some data on the discs has gotten corrupted, causing the microcontroller to throw in the towel.
Someday when time & knowledge permits it, I'll have another look and figure out how it works and if there's still some data to recover.
Until that day though, that old data, for me, is lost.

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
Do not ask Why !
https://www.vogonswiki.com/index.php/Serial_port

Reply 4 of 4, by GenkiMan_Lx

User metadata
Rank Newbie
Rank
Newbie

The picture is from a similar drive on ebay. But yes, the drive still spins but it is not detected by the controller.
I also lost a 30mb ESDI HDD from a PS1 2011.
You are right. It is sad and hopefully someday a solution may arrise.
Thank you