Re: DEC Pro 350

Yeah, the fact that the issue is intermittent (mostly not booting) is weird. Just to be clear, You mentioned a 25 pin connector. My understanding is that the console port is the printer port which is a 9 pin connector. Thanks for the info. I have ordered the stuff to make a cable so should

Re: DEC Pro 350

> From: Kurt Hamm > If anyone has any thoughts, I would appreciate it. You probably already know this, but... My sense is that a collector of classic computers has to be able to diagnose and repair at the component level - get in there with an oscilloscope and a set of prints (creating

Re: DEC Pro 350

> On Feb 25, 2018, at 5:39 PM, Kurt Hamm via cctalk > wrote: > > Thanks for the suggestions. Interestingly, upon first boot I was able to > get the hard disk controller error with the picture of the computer. Then, > sure subsequent reboots failed to display anything.

Re: DEC Pro 350

Thanks for the suggestions. Interestingly, upon first boot I was able to get the hard disk controller error with the picture of the computer. Then, sure subsequent reboots failed to display anything. I removed all the cards and booted with no luck. It looks like I will need to build a cable to

Re: DEC Pro 350

fredag 23 februari 2018 skrev Kurt Hamm via cctalk : > Well, I bought that DEC Pro 350 on ebay. It initially booted up and I got > the error screen. The error code I found on the Internet was related to > the hard disk controller. So, I thought I just needed someone to

Re: DEC Pro 350

On Fri, Feb 23, 2018 at 8:10 AM, Kurt Hamm via cctalk wrote: > Well, I bought that DEC Pro 350 on ebay. It initially booted up and I got > the error screen. The error code I found on the Internet was related to > the hard disk controller. So, I thought I just needed

Re: Manx [Was: Re: DEC Pro 350/380 Memory Cards - Interchangeability?]

Topic and Off-Topic Posts >> <cctalk@classiccmp.org> >> Cc: 'Paul Koning' <paulkon...@comcast.net> >> Subject: Manx [Was: Re: DEC Pro 350/380 Memory Cards - >> Interchangeability?] >> >> On Mon, Aug 29, 2016 at 05:38:02PM +0100, Rob Jarratt wrote: >>

RE: Manx [Was: Re: DEC Pro 350/380 Memory Cards - Interchangeability?]

> -Original Message- > From: Pontus Pihlgren [mailto:pon...@update.uu.se] > Sent: 06 September 2016 11:49 > To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Cc: 'Paul Koning' <paulkon...@comcast.net> >

Manx [Was: Re: DEC Pro 350/380 Memory Cards - Interchangeability?]

On Mon, Aug 29, 2016 at 05:38:02PM +0100, Rob Jarratt wrote: > > but Manx seems to be in the process of being relocated > Hasn't Manx been in that state for ages? /P

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

I wrote: > Mouser has some in > stock, e.g., the IS41C16105-50KLI in SOJ-42 package at $7.20 each > (quantity one) or the IS41C16105-50TLI in TSOP-44 package at $7.02 > each (quantity one). On Fri, Sep 2, 2016 at 12:44 PM, Paul Koning wrote: > The ISSI memory calls itself

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Sep 2, 2016, at 3:05 PM, Ethan Dicks wrote: > > On Fri, Sep 2, 2016 at 2:44 PM, Paul Koning wrote: >> Incidentally, the Pro technical manual says that the daughterboard can be up >> to 2 MB (but DEC only offers 512 kB). It doesn't say how

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

On Fri, Sep 2, 2016 at 2:44 PM, Paul Koning wrote: > Incidentally, the Pro technical manual says that the daughterboard can be up > to 2 MB (but DEC only offers 512 kB). It doesn't say how that is done. It > looks like the answer is that there are four RAS signals, so

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Sep 1, 2016, at 12:56 AM, Eric Smith wrote: > > On Wed, Aug 31, 2016 at 6:42 AM, Paul Koning wrote: >> Yes, the one I saw when I made that comment is an MSM51V18165F by Lapis, a >> 1M by 16 "fast page mode" EDO DRAM. > > If it's EDO, it may

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

On Wed, Aug 31, 2016 at 6:42 AM, Paul Koning wrote: > Yes, the one I saw when I made that comment is an MSM51V18165F by Lapis, a 1M > by 16 "fast page mode" EDO DRAM. If it's EDO, it may not be compatible with systems that weren't designed for EDO, and since none of the

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Aug 30, 2016, at 8:15 PM, Eric Smith wrote: > > On Tue, Aug 30, 2016 at 1:28 PM, Paul Koning wrote: >> Another possibility would be a current (not surplus) DRAM device such as a >> 1M x 16 chip, plus a couple of level shifters to go between the

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

On Tue, Aug 30, 2016 at 1:28 PM, Paul Koning wrote: > Another possibility would be a current (not surplus) DRAM device such as a 1M > x 16 chip, plus a couple of level shifters to go between the 3.3 V it likes > and the 5V logic of the Pro. WARNING: Most recent 1Mx16

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Aug 30, 2016, at 2:58 PM, Mattis Lind wrote: > >> ... > > There are 256 k chips (Intel & TI) available from a Swedish surplus > seller. Similar type of chips show up on Ebay as well, for example this > listing http://www.ebay.com/itm/111748975992 Another

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> > >> I misremembered the 350 (I don't have one): it can have memory in the > I/O > >> card cage, but it also has memory daughter cards, two of them, with 40 > pin > >> connectors. > >> > > Many years ago I upgraded those daughter cards and changed them from > using > > 64kbit chips to 256 kbit

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Aug 30, 2016, at 3:07 AM, Mattis Lind wrote: > >> >> I misremembered the 350 (I don't have one): it can have memory in the I/O >> card cage, but it also has memory daughter cards, two of them, with 40 pin >> connectors. >> > Many years ago I upgraded those daughter

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> > I misremembered the 350 (I don't have one): it can have memory in the I/O > card cage, but it also has memory daughter cards, two of them, with 40 pin > connectors. > > > Many years ago I upgraded those daughter cards and changed them from using 64kbit chips to 256 kbit chips. I don't remember

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Aug 29, 2016, at 6:27 PM, Rob Jarratt wrote: > > ... > Thanks, I see that now. Definitely no compatibility :-(. Just need that > logic analyser really to work out what is the matter with them both. When > the 380 doesn't have the daughter board installed it

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

> -Original Message- > From: Paul Koning [mailto:paulkon...@comcast.net] > Sent: 29 August 2016 18:10 > To: r...@jarratt.me.uk > Cc: General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: Re: DEC Pro 350/380 Memory

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

Hello Rob, I think I found a link: http://vaxhaven.com/images/a/a7/EK-PC380-PS-003.pdf Andrea

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul Koning Sent: Monday, August 29, 2016 1:10 PM To: r...@jarratt.me.uk Cc: General Discussion: On-Topic and Off-Topic Posts Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability? I have

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

n: On-Topic and Off-Topic Posts >> <cctalk@classiccmp.org> >> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability? >> >> >>> On Aug 28, 2016, at 5:11 PM, Rob Jarratt <robert.jarr...@ntlworld.com> >> wrote: >>> >>> I have a

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

> -Original Message- > From: Paul Koning [mailto:paulkon...@comcast.net] > Sent: 29 August 2016 15:08 > To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeabil

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

> -Original Message- > From: Paul Koning [mailto:paulkon...@comcast.net] > Sent: 29 August 2016 15:08 > To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeabil

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

> -Original Message- > From: Paul Koning [mailto:paulkon...@comcast.net] > Sent: 29 August 2016 15:08 > To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeabil

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

> On Aug 28, 2016, at 5:11 PM, Rob Jarratt wrote: > > I have a 350 and 380. Neither work. The 380 is reporting a possible memory > error on the LEDs. Will the 350's memory work in a 380 (or vice versa)? The 380 has memory on the motherboard, and a model-specific