Ok. Thanks for verifying that info, I will try changing the BIOS setting. I do need to replace the Dallas RTC as well.
On 3/16/21 12:57 PM, Jonathan Haddox via cctalk wrote: > I've got a Diversified Tech 286 SBC as well and was able to switch to 3.5 > floppies by modifying the BIOS settings. Mine has the Dallas Real Time Clock > chip and the battery was dead so the BIOS settings weren't preserved after a > reboot. Fortunately I obtained a replacement chip available on ebay to fix > that issue. I haven't got a manual to share, but it's a neat little board. > > Jonathan > On Tuesday, March 16, 2021, 12:00:02 PM CDT, > <[email protected]> wrote: > > Send cctalk mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.classiccmp.org/mailman/listinfo/cctalk > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cctalk digest..." > > > Today's Topics: > > 1. VAX rom patches - VAXstation 2000 SCSI boot, KA420 > 1GB boot > (David Brownlee) > 2. Re: Diversified Technology CAT904 80286 single board PC > (david raingeard) > 3. Re: PDP-10 I/O notes (Lars Brinkhoff) > 4. who collects modems? (Tom Uban) > 5. Re: Any info on a Western Peripherals DC-230 disk controller? > (Jay Jaeger) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 15 Mar 2021 18:36:23 +0000 > From: David Brownlee <[email protected]> > To: [email protected], "General Discussion: On-Topic and Off-Topic > Posts" <[email protected]>, port-vax List <[email protected]> > Cc: Malte Dehling <[email protected]> > Subject: VAX rom patches - VAXstation 2000 SCSI boot, KA420 > 1GB boot > Message-ID: > <cagn_6pbbzuqdjp-yicqrzsanosgye1owq_ulyvaved52zry...@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > I had some extra A4 pages with a VAXstation 2000 manual which covered > a preview PK2K kit for VMS, bootloader and ROM to allow use of the > VAXstation 2000 SCSI controller for more than just tapes. > > Rough scan at http://sync.absd.org/vax/VAX-PK2K-preview-kit.pdf (the > originals will be sent to someone who can do a better job) > > The pages led me to http://ftp.gwdg.de/pub/vms/ which includes some goodies: > - http://ftp.gwdg.de/pub/vms/pk2k - uVAX-2k SCSI patches with source > for boot roms, VMB & VMS > - http://ftp.gwdg.de/pub/vms/ka420 - ROM patches for KA420/KA430 boot > from >1GB disks > - http://ftp.gwdg.de/pub/vms/dk-552/ - VMS 5.2 patch to allow to > accept more SCSI disk devices > > (Starting a new thread in case there is (slightly) more general > interest for anyone interested in using the onboard uVAX-2K SCSI > controller more more than tapes (OK, OK, for anyone not running NetBSD > on their uVAX-2K interested in etc etc) - have cross posted to cctalk > & port-vax - hopefully not violating any conventions there) > > David > > > ------------------------------ > > Message: 2 > Date: Mon, 15 Mar 2021 16:41:54 +0100 > From: david raingeard <[email protected]> > To: Tom Uban <[email protected]>, "General Discussion: > On-Topic Posts" <[email protected]> > Subject: Re: Diversified Technology CAT904 80286 single board PC > Message-ID: > <cafvds1svqzfe_dzgqaheylrpfqh-zqfzyywpbamg_d22gz+...@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > i rather do what doe with ibm dos > > Le lun. 15 mars 2021 ? 16:23, Tom Uban via cctech <[email protected]> a > ?crit : > >> It dawned on me that I probably just need to change a BIOS setting. I >> haven't dealt with PCs in so >> long I've forgotten what to do... >> I would still like to find a manual if someone has one. >> >>> I have a Diversified Technology CAT904 80286 single board PC in a system >> with a 5.25" floppy drive >> running DOS. >>> I would like to switch the system to use a 3.5" drive and am wondering >> if anyone has a manual for >> the dip switch settings for this board or if I can simply add a 3.5" drive >> as a 2nd device on the >> floppy cable (guessing not without switch changes)? >>> --tnx >>> --tom >> > > ------------------------------ > > Message: 3 > Date: Tue, 16 Mar 2021 06:04:44 +0000 > From: Lars Brinkhoff <[email protected]> > To: Don Stalkowski via cctalk <[email protected]> > Subject: Re: PDP-10 I/O notes > Message-ID: <[email protected]> > Content-Type: text/plain > > Don Stalkowski wrote: >> For what it's worth I've posted some notes on PDP-10 I/O from a course >> taught by Mike Bennett at UWO in the early 1970s. > Thank you! > > Interesting to see the DECtape file structure format. > > > ------------------------------ > > Message: 4 > Date: Tue, 16 Mar 2021 09:48:33 -0500 > From: Tom Uban <[email protected]> > To: "General Discussion: On-Topic and Off-Topic Posts" > <[email protected]> > Subject: who collects modems? > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=utf-8 > > Clearing out stuff at my space, I have the following modems: > > NEC UltraLite-Series Image Modem Plus w/box > CTS Datacomm 2424 ADA modem w/box > Scout Plus External Data/Fax modem w/box > Digital DF03 modem > > Any offers? > > --tom > > > > ------------------------------ > > Message: 5 > Date: Tue, 16 Mar 2021 11:23:28 -0500 > From: Jay Jaeger <[email protected]> > To: Josh Dersch via cctalk <[email protected]> > Subject: Re: Any info on a Western Peripherals DC-230 disk controller? > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8; format=flowed > > I may have a little info - but the info is in storage, and it is just a > "Western Peripherals Instruction Reference Card", apparently referring > to the DC-230, PDP-11 and TC-130 (the latter being a tape controller, > for which I do have some doc.) > > Once the weather warms up again - say, maybe this weekend, I'll trot off > to storage, bring it back and scan it. > > Back in the 1970's the UW Madison CS Department's 11/20 had a 3rd party > disk controller of some sort - one pack removable, one fixed, but I > don't remember who made it (might have been Wangco). > > JRJ > > On 3/12/2021 5:02 PM, Josh Dersch via cctalk wrote: >> Any ideas what this disc controller is? >> >> https://www.ebay.com/itm/PDP-11-Backplane-Western-Peripherals-DC-230-Disk-Controller-DEC-Digital-PDP/353417412426 >> >> Can't find much about this on the 'net, other than that it was a controller >> for Diablo/Pertec style drives -- no idea if it's an RK11 clone or >> something else entirely. Looks to be suitable for a PDP-11/20 given the >> little notch missing from the side there, and the lack of a separate power >> harness for the backplane. >> >> - Josh >> > > End of cctalk Digest, Vol 78, Issue 16 > ************************************** >
