Introducution
I found this IRIS 3130 on ebay,
and I really could not resist to bid on it - and I won the auction
for the ridicilous price of 1,50EUR. Fortunately the IRIS was
only about 30 minutes by car away from my appartment, so it was
not a big deal to get it to its new home.
It's state is almost perfect - only the harddisc is broken and
makes a terrible noise, so I disconnected it after 10 seconds
of horrible sounds. Read the story how
I try to get my IRIS work.
The Hardware
Actually my IRIS has a Control Data badge and is called "Cyber
910" - but it really is a rebadged Silicon Graphics IRIS
3130.
The Boardset
My IRIS has 11 boards installed, of which five are CPU, memory
and IO and the other six form the graphics sub-system. The CPU,
memory and IO boards are plugged into the left half of the backplane,
whereas the whole graphics system is plugged into the right side.
Actually these are really two different busses, as you can see
in the pictures: The backplane is split into two regions.
I have the following boards installed:
| Slot |
Name |
Number |
Function |
| 1 |
IM1-4 |
5000-532-01 Rev B |
Memory Board with 4MB |
| 2 |
FP1 |
5000-573-01 Rev C |
Floating Point Processor |
| 3 |
IP2 |
5000-561-02 Rev M |
Main Processor (68020 at 16MHz) |
| 4 |
E-NET |
5000-173-10 Rev M |
Ethernet Controller (Excelan EXOS/201) |
| 5 |
STORAGER II |
076-0005-001 Rev B |
Storage Controller (ESDI) |
| |
|
|
|
| 15 |
BP3 |
5000-503-07 Rev C |
Bitplane - 4Bits at 1024x1024 |
| 16 |
BP3 |
5000-503-07 Rev C |
Bitplane - 4Bits at 1024x1024 |
| 17 |
BP3 |
5000-503-07 Rev C |
Bitplane - 4Bits at 1024x1024 |
| 18 |
DC4 |
5000-090-05 Rev H |
Display Controller |
| 19 |
UC4 |
5000-511-03 Rev H |
Update Controller |
| 20 |
GF2 |
5000-575-14 Rev C |
Frame Buffer |
|
