MVME225 documentation

2020-07-18 Thread Chris Hanson via cctalk
Does anyone have MVME225 documentation? I have one of these boards now and no docs for how to set the addressing jumpers/switches. -- Chris

Motorola 12Xbug?

2020-07-18 Thread Chris Hanson via cctalk
Does anyone know where to find Motorola 120bug or 12Xbug? I have an MVME121 but it has a third party ROM, not the typical Motorola boot ROM. (The 12Xbug manual would be handy too, of course.) -- Chris

Re: System Pro WAS RE: Compaq Smart Array 3200 Controller as a SCSI Controller

2020-07-18 Thread Kenneth Gober via cctalk
On Fri, Jul 17, 2020 at 2:38 PM Grant Taylor via cctalk < cctalk@classiccmp.org> wrote: > On 7/16/20 12:07 PM, Ali wrote: > > MS LanMan was Microsoft's networking OS of choice before NT. The base > > OS I believe was based on MS OS/2 1.31. > > I'm trying to discern if it was it's own independent O

When is a capacitor not JUST a capacitor (i.e., not just a filter or part of a resonant circuit)

2020-07-18 Thread Jay Jaeger via cctalk
(And not acting as part of a resonant circuit) Answer: When it is acting like a little delay line. https://www.computercollection.net/index.php/2020/07/18/q-when-is-a-capacitor-not-just-a-capacitor/

Re: Sun E250, NVRAM edit? (Serial Speeds, no console, etc)

2020-07-18 Thread silvercreekvalley via cctalk
Hi Ethan In theory console can be set to anything but its usually 9600/8/n/1 as I’m sure you’ve tried. On some suns unplugging the serial cable is the equivalent of sending a break, so might be worth a try? Suns do require full hardware signalling on the console connection so might be worth c