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HP 375/380/385 Project (w/ZuluSCSI mount)

L

legodude

Experienced Member
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Oct 2, 2023
Messages
135
I've been looking for a HP 9000/375/380/385 and finally snagged a 375 on Ebay for cheap. It has a 50mhz 68030, 24mb ram, and a high speed serial card (98659A):


s-l1600.jpg

A graphics adapter is missing. I'd to install HPUX so the first order of business was to remove the second HP-IB port and design a ZuluSCSI adapter:


2025-01-17 20.16.23.jpg

The design files are available here:

HP 9000/380 ZuluSCSI Compact Bracket by legodude | Download free STL model | Printables.com

This bracket lets you mount a ZuluSCSI Compact in a HP 9000 375/380/385 | Download free 3D printable STL models
www.printables.com

It looks like firmware 2.0 is needed to install from a CD, and I also want to eventually upgrade the 68030 to a 33mhz, which also requires a firmware upgrade. The ROM (M5M27C102J) in the system is stored on a one-time programmable chip, so I had to source a writable EPROM (M5M27C102JK):
www.ebay.com

1pc M5M27C102JK-15 MITSUBISHI M5M27C102JK EPROM PLCC CERAMIC WINDOWED RARE NEW | eBay

Find many great new & used options and get the best deals for 1pc M5M27C102JK-15 MITSUBISHI M5M27C102JK EPROM PLCC CERAMIC WINDOWED RARE NEW at the best online prices at eBay! Free shipping for many products!
www.ebay.com

This chip was easily programmed with my T48 and minipro using the firmware (v2.0) from Bitsavers:

1737819638292.png


Installation is relatively easy with instructions here:

hp-series300.net

hp-series300.net hp-series300.net

I created a 1gb image (HD1.img) and put the CD images at CD3.img. You have to switch image files halfway through the installation, and each time I tried powering off (I don't have my ZuluSCSI set up yet to change image files with a button press), I got file system corruption. I realized I could just hot swap the SD card with the new file at the "insert update CD" prompt and it worked perfectly. I'm happy to share my fresh install image file if anyone is interested.

1737823991430.png

I haven't done extensive testing, but I was told that while it is possible to use a VT100/ANSI/etc terminal emulator to do the install process, you will have a better time with a dedicated HP terminal emulator so I've been using a demo version of TTerm. I don't know of any open source alternatives.

For those unaware, the 375, 380, and 385 all share the same system board (98574) and can be upgraded to a top spec 385:

My to do list:
-Get a 33mhz 68040 and oscillator to turn it into a 385
-Get a 98550a or A1416A for graphical capabilities
-Ram upgrade
 
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Nice score, and thank you for sharing the STL for that ZuluSCSI bracket! I hope to make use of that in my 9000/380. (We'll see if that ~33% clock upgrade tempts me down the road...)

I took a look to confirm which model I had, and noted that there appears to be a second socket (for the heatsink retainer, I assume). Then the hpseries-300.net link you included talked about the 375 having a daughterboard for the '030... Do you have something like the doubled sockets in these photos *plus* the '030 daughtboard? Or is that daughterboard in place of the second socket shown here?

HP9000380-cpu-1.jpg

Side-view:
HP9000380-cpu-2.jpg

My configuration from some years back, before I found more RAM on ePay:
Code: 
Copyright 1990,
Hewlett-Packard Company.
All Rights Reserved.

BOOTROM Rev. 2.0  29 NOV 90
Bit Mapped Video
MC68040 Processor
Configuration EEPROM
HP-HIL.Keyboard
HP-IB
DMA-C0
RAM 8388292 Bytes
HP98644 (RS-232) at 9
HP98265 (SCSI S 32) at 16
HP98643 (LAN) at 21, AUI, 08:00:09:14:7A:8A
HP PARALLEL at 23
 
I'll get photos of the daughter board/socket setup next time I have it apart. Your photos are a good reminder to ensure I have a heatsink. I have a few spare and some adhesive so I'll go that route.
Extra ram seems uncommon a pricey so I may stick at 24mb for a while.


I'm slowly working through getting patch sets installed.
Of note I couldn't get the patch instructions in the PDF guide to work, I had to use
Code: 
sh PHCO_20524; update –r -s /tmp/PHCO_20524.updt PHCO_20524

I also designed a 3d printed slot cover which I can send to anyone interested.
 
Just obtained 4 HP 9000 series 300's with expansion chassis, hard drives, monitors, mice & keyboards so watching with interest. Plan is to have one on display running a facsimile of the software it ran at work while monitoring for vibrations in the fuel channel in our reactors (as software security prevents removal of software)

Fitting a Zulu scsi is a plan as I have about 30 hard drive chassis which had knackered drives (removed)

Managed to get three boot to HP basic and one machine has a 68030, and I also have the colour monitor and the colour graphics card but its not installed so needs testing.

HPUX, is there a source for this series with the graphical front end for the colour card anywhere ?
 
The link in my first post has has some software and links to the bitsavers archive with further HP-UX isos.
 
Shame HP used proprietary hard drives. I literally have a car load of Hard Drive units that probably all need new drives. Fortunately I also have three Bering EconoPac units too.
 
One question

I am trying to us HPDRIVE and I can't install the driver for the TNT4882 GPIB PCI interface I have. It keeps saying it cant find the hash file ?

EDIT - sorted, its bloody microsoft device driver signing, anyone know how to kill it permanently ?
 
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No idea re GPIB, I wanted a 375+ explicitly so I could use SCSI and not have to fool with a disk emulator
 
Hi, I was wondering, do you have any pictures of the original HPIB connector? Did it just plug into the 34pin connector on the logic board or was there some kind of daugherboard?
 
Remind me in a couple days (traveling) and I will get you a photo. There is a small circuit board
 
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