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Data General NOVA 3

(last updated: 20-Sep-2008)


Operational Status

Configuration

The boards were in loose disarray inside the card cage when received. I've relocated them in the backplane according to my best information.

Major Events

Still To Do


Description

Acquisition

28-Mar-2007

This Nova 3 was found on eBay, listed by 'tsiudak', and I won the bidding with a final bid of $305.

Delivery

12-Apr-2007

Today the box arrived via UPS. I happened to see the UPS van pull up to the curb and watched from the window as the driver pushed the box out of the truck to the sidewalk. Clearly another case of UPS's lack of care on a box marked 'Fragile'. The box was simply allowed to tumble out of the truck! I went out to assist the lone driver, and together we brought the box indoors.

Rebecca helped me move the box downstairs and we opened it up. The system as boxed well, one box inside another with cut foam surrounding the inner box. I'll give that to the seller, but the choice of UPS over FedEx was not good.

Initial inspection

12-Apr-2007

We removed the Nova from the carton and I took a few photos. Of the five cards in the chassis, three had become dislodged during shipment, or maybe just the last 30 feet! Two cards were knocked out of their tracks and were being 'pinched' by the narrower sidewalls of the card cage. These boards were clearly showing a bend at both left and right sides. The third board had been knocked so that the right side was out of it's card guide/track and had somehow gotten lodged in the track below. I photo'd the cards and then removed them to relieve the strain on them.

Board inventory

18-Jul-2008

At long last, I took a board inventory. These board placements are not as I originally received them, but are probably closer to the real operational configuration than before:

Slot 12:
Slot 11:
Slot 10:
Slot  9:
Slot  8:
Slot  7:
Slot  6:
Slot  5: "DGC NOVA BASIC IO CONTROL"  400718110  4023  xxxx  77226  (only center populated)
Slot  4: "DGC NOVA CASSETTE I/O"  E0062455  D4388  PAA  A003-2101  R20  T005-3552  R10
Slot  3: "DGC NOVA 3 16K MEMORY"  D0782  Pxx  A5 5964  Rxx  T5 5982  R10  7343  EE01369
Slot  2: "DGC NOVA 3 16K MEMORY"  P/N-005-xx62-x  S/N-H-14-04880  77476
Slot  1: "DGC NOVA 3 CPU"  H22 20044  A005 6509  R19  T005 6411  R20

Somewhere along the way, I've also acquired these two loose boards:

 - MCS (Mini Computer Systems) ICOS MEDIA III
 - DGC FLISC CONTROLLER  S103711  005-8927  79-27

and I need to learn more about them.

Power switch key

18-Sep-2008

As received, this system came with no key. The power switch takes a cylindrical key, similar to a vending machine key. Luckily, I have just received the Maddox Nova 3 system, and a key was included in that shipment. I can have a copy made.

But, on this system, the switch lock barrel is mis-aligned with the notches. Somehow, the key was removed without properly turning the barrel to the LOCK position, now preventing me from inserting a key at all.

I'd like to see if I can somehow 'pick' the lock and get the barrel rotated to the needed position.

After removing the front panel from the chassis, I had easy access to the lock, and have removed the lock cylinder from the front panel. Now, I have to figure out a way to get a key (probably one without the splines that normally key into the notches), and 'cut' the perimeter notches to the correct code. It'll be interesting to see how successful I am at that. THe other obvious route is to simply replace the lock cylinder with a similar one from the locksmith's. But, I'd like to stay original if I can.


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