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

2016-09-06 Thread Torfinn Ingolfsen
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?]

2016-09-06 Thread Rob Jarratt
; Subject: 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? >

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

2016-09-06 Thread Pontus Pihlgren
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?

2016-09-04 Thread Eric Smith
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?

2016-09-02 Thread Paul Koning
> 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?

2016-09-02 Thread Ethan Dicks
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?

2016-09-02 Thread Paul Koning
> 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?

2016-08-31 Thread Eric Smith
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?

2016-08-31 Thread Paul Koning
> 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?

2016-08-30 Thread Eric Smith
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?

2016-08-30 Thread Paul Koning
> 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?

2016-08-30 Thread Mattis Lind
> > >> 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?

2016-08-30 Thread Paul Koning
> 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?

2016-08-30 Thread Mattis Lind
> > 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?

2016-08-29 Thread Paul Koning
> 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?

2016-08-29 Thread Rob Jarratt
> -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?

2016-08-29 Thread shadoooo
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?

2016-08-29 Thread Paul Birkel
-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?

2016-08-29 Thread Paul Koning
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?

2016-08-29 Thread Rob Jarratt
> -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?

2016-08-29 Thread Rob Jarratt
> -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?

2016-08-29 Thread Rob Jarratt
> -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?

2016-08-29 Thread Paul Koning
> 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