You need OSR2, and even then it's hard to get Win95 OSR2 to work reliably
with TCP/IP. You'll first need to add the TCP/IP client for Microsoft
Networks protocol, as it's not even installed by default (darn Microsoft!).
By default it has only NetBUI and Netware, which must have paid them
money... I could browse the web, but not get file sharing working. In the
end I switched to Win98 SE and it was a lot smoother on the networking side.
>From: "Robert Jarratt" <robert.jarratt at ntlworld.com>
>The drivers from the HP Enterprise site worked, although for
>Windows 95 I have been unable to get TCP/IP working. DHCP is not working
>ping moans about a wrong protocol. It looks like I am missing VUDP.386 and
>could not find it on the Windows 95 CD. I am pretty sure I have another CD
>with OSR2 somewhere, but I can't find it at the moment. Will have another
>look at some point, but I think the driver itself is just fine now.
Good news! A bunch of old VCF East/West videos are going onto YouTube,
thanks to ANTIC / Atari Podcast's Kevin Savetz stepping forward to do
the grunt work.
The first batch are talks from VCF East 6.0 (2009). YouTube playlist is
We also asked Jason Scott to bring the videos into Archive.org as they
>From: "Robert Jarratt" <robert.jarratt at ntlworld.com>
>Does anyone happen to have drivers for this card? I am not sure what OSs
>this card was supported on, so any drivers at all would be appreciated.
I have a few versions of the drivers. They are part of Windows 98SE and
Windows XP distribution though, I had the card recognized on its own on by
both of these (and I suspect NT too though I didn't try). Needs more help on
Windows 95. If you can't get it to work from the links send me an email.
Which reminds me I should ask for some drivers too...
Here are the options to attach 3340 DASD emulation to an IBM System/3
1) direct connect to the internal channel of the S/3. Some disk OEM's did
Requires a FPGA with at one side MST-1 interface logic and at the other side
IDE or SCSI interface.
The availabe IBM documentation is complete enough to finish this project.
You need good IBM HW & VHDL knowledge.
2) direct connect to the BUS/TAG interface connector.
This needs a 8+P bit stream. You have to do some reverse engineering to
figure out what the exact format is.
I have no idea if the HW must be implemented in a FPGA (for timing reasons)
or if an AVR processor will do the job.
Advantage is that you don't have to modify anything inside the S/3.
3) IBM has implemented an IOP (I/O Processor) between the S/3 CPU and the
This IOP is a modified version of the ones used in the IBM 370/115 & 125. It
is a powerfull multi thread capable beast.
With small HW modification you can connect an IDE or SCSI drives to it.
The difficult part is modifying the firmware of the IOP. This requires a
special assembler (to be written) and very good assembler skill's.
All options requires quite alot of time to implement.
My 2 cents
I've recently been poking about with various bits of emulation with
hardware interfaces... Dave's MFM emulator; various SCSI-to-USB or
SCSI-to-SDcard devices; my Setasi RP12 Massbus disk emulator; the
Sigma Seven Lisa widget/ProFile emulator etc.
What about IBM channel-attached DASD?
There are various CPUs lying around in private collections and museums
- System/360s; System/370s; System/3 Model 15s; all used
channel-attached DASD: and working reliable disks are much rarer than
the damn CPUs!
1. There are or were various 3rd party companies producing rather
obscure emulated DASD replacement subsystems - Virtualblue and Bustech
are two names that come to mind. Has anyone looked into the
possibility of using them to emulate older devices that would be
usable on the above vintage CPUs?
2. To those with hardware design experience: how big a task do you
reckon it would be to do this as a home-brew with modern hardware -
exactly as Dave did with his MFM emulator? Is it feasible? Do the
entire thing in software - Pi or Arduino or FPGA - with appropriate
driver electronics to drive a channel interface?
I've BCC'd some experts with experience - Rich Alderson; William
Donzelli; Henk Stegeman - in the hope that they'll be able to
What do people reckon would be the best target for emulation? 3340
springs to mind initially... would that work on machines as old as
System/360s? It's about the *only* option for 5415 DASD...
(To digress briefly - a modern reimplementation of something like the
Setasi Massbus disk emulator would also be very useful; Rich - weren't
LCM working on something like that?)
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
To all readers/followers of this website - for those who love
classic/vintage computers - I want to wish all the best of the holiday
season no matter what your beliefs. In this day of political
correctness it is simply to acknowledge Mother Nature's transition
>from fall to winter and we should take time from our busy schedules to
reflect on this 'special' time of the year.
My VAX4000-500 will no longer power up, with the PSU starting up and then
immediately shutting down. I suspect a possible short somewhere. I have
measured the resistance of the load presented to the PSU by connecting
probes to the backplane sockets used to power the machine. The odd one is
the 5V load. With all the boards in and drives inserted I measure a
resistance of about 4R. As I pulled out boards, drives and fans, it
gradually crept up to 6R. So with nothing connected to the backplane I get a
6R load across the 5V supply.
To my inexperienced mind, that seems a bit low. Should I expect such a
value, or should I be dismantling the box to investigate possible shorts or
failed components on the backplane?
Additionally, the 12V side seems to be charging a capacitor as the
resistance slowly climbs to about 130K. Is that reasonable? Again, nothing
but the backplane.
The 3.3 and -12V show very high resistance at all times.
In the series "looking for drivers". I have taken to using DolchPac 65's as
my retro workhorses so I can multi-boot DOS, Win98 , WinNT, WinXP and Linux
while sticking weird old PCI and ISA interface cards in it. One of the OS
always ends up having some software for the card. It has a custom video card
that identifies itself as a "Trident Video Accelerator 3D Cyber9520". I
found the driver for Win98 which works very well, the machine came
pre-installed running NT, and Linux installs a driver that is a bit glitchy
but usable (I can't believe I could run modern Linux on this!). The video is
auto-recognized and the right driver installs under XP, but the default
version is ultra-buggy, video gets corrupted. Does anyone have an updated
driver for this chip? Internet didn't come up with anything apart from the
ones necessitating scary hardware scanners that crashed my old machine
Just wanted to say a very sincere Thank You to all the talented folks that
hang out here and call this place home, and also to wish you and yours a
jwest at classiccmp.org