9 Jan
2004
9 Jan
'04
11:28 a.m.
The pieces are all coming together on my PDP-11...I received my SCSI card
today and am waiting on the memory. I've been doing some research into
what order to insert the cards into a BA23 -- this is what I've come up
with. Any suggestions otherwise?
Since I haven't seen the QRAM-44B yet, I'm not sure if it's a half height
or quad height board. If it is a half height, do I need a bus grant
continuity card in the CD portion of that slot?
Starting with the 3 Q/CD slots on top, then the 5 Q/Q slots:
|------------------------------------------------------------------
| M8190-AB (quad height) | |
|------------------------------------------------------------------
| Clearpoint QRAM 44B | M9047 ??? |
|------------------------------------------------------------------
| M8020 (DPV11) | M9047 ??? |
|------------------------------------------------------------------
| Viking SCSI | M7516 (DELQA) |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
-------------------------------------------------------------------
Thanks, everyone! Wish me luck configuring the sucker...
Chris
9 Jan
9 Jan
11:30 a.m.
On Fri, 9 Jan 2004, Christopher Cureau wrote:
Starting with the 3 Q/CD slots on top, then the 5 Q/Q
slots:
|------------------------------------------------------------------
| M8190-AB (quad height) | |
|------------------------------------------------------------------
| Clearpoint QRAM 44B | M9047 ??? |
|------------------------------------------------------------------
| M8020 (DPV11) | M9047 ??? |
|------------------------------------------------------------------
This then wont work, since the QRAM and/or M9047 (grant?), as well
as the M8020 all need Qbus.
I usually put the CPU in slot 3, then move downward since those
are all Q/Q. If you use slots 1-3, put the CPU in slot 1, and
for slots 2 and 3, only use the A/B parts (the leftmost sides
in your drawing.), since those are Q.
Also, I would move the DELQA up in the bus, since it (a) will
loose packets, and (b) acts up every now and then.
--f
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://VAXlab.pdp11.nl/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA
11:52 a.m.
At 11:30 PM +0100 1/9/04, Fred N. van Kempen wrote:
On Fri, 9 Jan 2004, Christopher Cureau wrote:
Not so sure it won't work. I have a QRAM-2 (quad width, 1MB) that
happily works in a Q/CD slot.
John
Starting with the 3 Q/CD slots on top, then the
5 Q/Q slots:
|------------------------------------------------------------------
| M8190-AB (quad height) | |
|------------------------------------------------------------------
| Clearpoint QRAM 44B | M9047 ??? |
|------------------------------------------------------------------
| M8020 (DPV11) | M9047 ??? |
|------------------------------------------------------------------
This then wont work, since the QRAM and/or M9047 (grant?), as well
as the M8020 all need Qbus. 
3:38 p.m.
Christopher Cureau wrote:
The pieces are all coming together on my PDP-11...I
received my SCSI card
today and am waiting on the memory. I've been doing some research into
what order to insert the cards into a BA23 -- this is what I've come up
with. Any suggestions otherwise?
Since I haven't seen the QRAM-44B yet, I'm not sure if it's a half height
or quad height board. If it is a half height, do I need a bus grant
continuity card in the CD portion of that slot?
Starting with the 3 Q/CD slots on top, then the 5 Q/Q slots:
Here's the BA23 ordering as per the manual:
A B C D
|----------------------------------------
|(quad) CPU | | 1 |
|---------------------------------------- |
| quad or one dual | | 2 |
|---------------------------------------- |
| quad or one dual | | 3 |
|---------------------------------------- |
| | | 4 >----->-------
| quad or duals | | |
|---------------------------------------- |
| | | 5 <-----<-------
| quad or duals | | |
|---------------------------------------- |
| | | 6 >----->-------
| quad or duals | | |
|---------------------------------------- |
| | | 7 <-----<-------
| quad or duals | |
|---------------------------------------- |
| | | 8 >----->------>
| quad or duals | |
-----------------------------------------
-nick o
5:42 p.m.
New subject: OT somewhat: Anybody in Houston who can help...& some Sun items available
I need some help in Houston to collect and deliver some heavy HP stuff to a
trucking company for shipment. The equipment includes some big old drives
which need to locked for shipment.
The items are in a self storage unit and would need a Budget van or a low
trailer with a strong ramp. Of course I'm ready to pay a reasonable amount
for time and rentals.
As well, there is a bunch of vintage Sun equipment at the site that can be
thrown in as part of the deal. Anybody out there who can help? Please reply
off-list.
thanks, Dan Cohoe
7497
days inactive
7497
days old
4 comments
5 participants
participants (5)
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chrisc＠addpower.com -
dancohoe＠oxford.net -
dundas＠caltech.edu -
oliv555＠arrl.net -
waltje＠pdp11.nl