From Newsgroup: comp.sys.ibm.ps2.hardware

Hi all,

so now I bit the bullet and bought an P75 model, boots, 16 MB Ram works, display works, new floppy works. Case is without cracks.
What doesn't work is the hard drive, does not make a sound, even on
external power. "New" one is on its way as is an External SCSI CD-ROM
drive (for installing OS/2 Warp)
Of course, the SCSI Terminator is missing, I found one in the UK, will
take a while until it gets to Berlin.
Now I am looking for a SCSI cable, and the mini Centronics variant is unobtainium as it seems.
Any idea how to connect the External drive? Using a slot bracket and an internal cable with 3 connectors?
Cheers
SteffenWolf/2

(Name promptly adopted)
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From Newsgroup: comp.sys.ibm.ps2.hardware

Hi !

Hi all,

so now I bit the bullet and bought an P75 model, boots, 16 MB Ram works, display works, new floppy works. Case is without cracks.
What doesn't work is the hard drive, does not make a sound, even on
external power. "New" one is on its way as is an External SCSI CD-ROM
drive (for installing OS/2 Warp)
Of course, the SCSI Terminator is missing, I found one in the UK, will
take a while until it gets to Berlin.
Now I am looking for a SCSI cable, and the mini Centronics variant is unobtainium as it seems.
Any idea how to connect the External drive? Using a slot bracket and an internal cable with 3 connectors?
Cheers
SteffenWolf/2

(Name promptly adopted)

If you are i Germany as well I'D guess that I have mini-centronics
terminator as well as a matching IBM-SCSI to Standard 50-pin connectio
cable.
--
Very friendly greetings from Peter in Germany
http://www.mcamafia.de/
--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

Hi Peter,

wow, that would be great. Yes, I live in Berlin and would be very
interested in both the terminator and the cable. My P75 is all torn up
and wants to be put together again. Hard drive is ordered, of course an
IBM, DPAS 540 MB.But should have gotten a 1 GB one, though. Would you
sell the terminator and the cable? How much would you want for both?

Cheers
SteffenWolf/2

On 22.01.2025 15:47, Peter H. Wendt wrote:

Hi !

Hi all,

so now I bit the bullet and bought an P75 model, boots, 16 MB Ram
works, display works, new floppy works. Case is without cracks.
What doesn't work is the hard drive, does not make a sound, even on
external power. "New" one is on its way as is an External SCSI CD-ROM
drive (for installing OS/2 Warp)
Of course, the SCSI Terminator is missing, I found one in the UK, will
take a while until it gets to Berlin.
Now I am looking for a SCSI cable, and the mini Centronics variant is
unobtainium as it seems.
Any idea how to connect the External drive? Using a slot bracket and
an internal cable with 3 connectors?
Cheers
SteffenWolf/2

(Name promptly adopted)

If you are i Germany as well I'D guess that I have mini-centronics terminator as well as a matching IBM-SCSI to Standard 50-pin connectio cable.

--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

Hi Peter,

I did send an email to the mcamafia email.

Cheers/2
Steffen

On 22.01.2025 16:57, SteffenU wrote:

Hi Peter,

wow, that would be great. Yes, I live in Berlin and would be very
interested in both the terminator and the cable. My P75 is all torn up
and wants to be put together again. Hard drive is ordered, of course an
IBM, DPAS 540 MB.But should have gotten a 1 GB one, though. Would you
sell the terminator and the cable? How much would you want for both?

Cheers
SteffenWolf/2

On 22.01.2025 15:47, Peter H. Wendt wrote:

Hi !

Hi all,

so now I bit the bullet and bought an P75 model, boots, 16 MB Ram
works, display works, new floppy works. Case is without cracks.
What doesn't work is the hard drive, does not make a sound, even on
external power. "New" one is on its way as is an External SCSI CD-ROM
drive (for installing OS/2 Warp)
Of course, the SCSI Terminator is missing, I found one in the UK,
will take a while until it gets to Berlin.
Now I am looking for a SCSI cable, and the mini Centronics variant is
unobtainium as it seems.
Any idea how to connect the External drive? Using a slot bracket and
an internal cable with 3 connectors?
Cheers
SteffenWolf/2

(Name promptly adopted)

If you are i Germany as well I'D guess that I have mini-centronics
terminator as well as a matching IBM-SCSI to Standard 50-pin connectio
cable.

--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

Hi Steffen !

Hi Peter,

I did send an email to the mcamafia email.

Cheers/2
Steffen

Got it and replied to it.

Now I am going down into the basement digging for parts.
...

Maybe I find the Tolkien Ring, the Bernsteinzimmer or whatever down
there. I'm often surprised myself - and I *put* the stuff there.
Ah - wait: it is beginning dementia.

:-)
--
Very friendly greetings from Peter in Germany
http://www.mcamafia.de/
--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

Peter, if you don't find the cable, I do have a spare 33F4606 sitting in
my SCSI cable tote. However, as I'm on the "wrong" side of the
Atlantic, the shipping price will make one's eyes water. I also have
FRU 92F0057 terminators.

I still have a few narrow SCSI drives that didn't sell in my last
offering period, 1 IBM DPEA-31080 (1080MB) P/N 84G9435, 1 IBM DPES-31080 (1080MB) P/N 85G3666 and 2 Sigma Data Quick Easy Disk QED/8S-540 (540MB)
that are rebadged Fujitsu M2684SAU drives. Again, the price to ship to
Berlin would be painful, but if someone in the USA wants one or more of
these drives the shipping price will be much more reasonable. If anyone
has an interest, let me know via (last name) AT juno dot com. I will
need to retest these drives, they were tested and known working about 2
years ago, which is plenty of time for new failures to creep in.

As I recall, the P75 hard drive bay space is so tight that a SCSI wide-to-narrow adapter will not fit, which is unfortunate as I have a
small pile of wide 36GB New/Old-Stock drives.
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From Newsgroup: comp.sys.ibm.ps2.hardware

Hi Rick,

yup, shipping is cost prohibitive over the pond. But the DPES-31080 is
also available here. Currently, there is a DSAS-3540 in my P75. However,
it is not recognized. When I boot from the reference disk, it finds the
SCSI adapter, but when I go to the SCSI configuration page, I get a
message that the adapter is not available. A new autoconfiguration does
not change anything. The hard disk is terminated, the 3 term packs are
set on the mainboard, but no terminator is connected to the external
port. Could this be the problem?

And maybe I get a late Christmas Present from Peter:-)
Cheers/2
SteffenWolf


On 23.01.2025 19:19, Rick Ekblaw wrote:

Peter, if you don't find the cable, I do have a spare 33F4606 sitting in
my SCSI cable tote.  However, as I'm on the "wrong" side of the
Atlantic, the shipping price will make one's eyes water.  I also have
FRU 92F0057 terminators.

I still have a few narrow SCSI drives that didn't sell in my last
offering period, 1 IBM DPEA-31080 (1080MB) P/N 84G9435, 1 IBM DPES-31080 (1080MB) P/N 85G3666 and 2 Sigma Data Quick Easy Disk QED/8S-540 (540MB) that are rebadged Fujitsu M2684SAU drives.  Again, the price to ship to Berlin would be painful, but if someone in the USA wants one or more of these drives the shipping price will be much more reasonable.  If anyone has an interest, let me know via (last name) AT juno dot com.  I will
need to retest these drives, they were tested and known working about 2 years ago, which is plenty of time for new failures to creep in.

As I recall, the P75 hard drive bay space is so tight that a SCSI wide- to-narrow adapter will not fit, which is unfortunate as I have a small
pile of wide 36GB New/Old-Stock drives.

--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

Hi Steffen !

Currently, there is a DSAS-3540 in my P75.

I'd answere your mail before looking here.
The DSAS pinout is

JP1 Device ID 1
JP2 Device ID 2
JP3 Device ID 4 (all open = 0)
Has to be ID 6 (2 + 4 closed)

JP4 Disable Autospin (better for the Power supply)
JP5 Disable Unit-Attention (has to be open)
JP6 Enable Termination (has to be closed for last or only drive)
JP7 Disable TI Negotiation (has to be open)
--
Very friendly greetings from Peter in Germany
http://www.mcamafia.de/
--- Synchronet 3.20c-Linux NewsLink 1.2

From Newsgroup: comp.sys.ibm.ps2.hardware

https://www.ardent-tool.com/IBM_HD/dsas_spw.pdf

Peter H. Wendt wrote:

Hi Steffen !

Currently, there is a DSAS-3540 in my P75.

I'd answere your mail before looking here.
The DSAS pinout is

JP1 Device ID 1
JP2 Device ID 2
JP3 Device ID 4 (all open = 0)
Has to be ID 6 (2 + 4 closed)

JP4 Disable Autospin (better for the Power supply)
JP5 Disable Unit-Attention (has to be open)
JP6 Enable Termination (has to be closed for last or only drive)
JP7 Disable TI Negotiation (has to be open)

--- Synchronet 3.20c-Linux NewsLink 1.2