Model 90 with Type 0
rf90386a.exe Refdisk for Model 90 and Type 0 386DX Complex
@FDDE.ADF - IBM Enh. 80386 Memory Exp. Adapter w/ROM
CFDDE.ADF - Init file for @FDDE.ADF
Weitek 3167 on Type 0 Complex (!!!)
A good image showing the clean configuration. Planar XGA,
160MB DBA-ESDI, 4x 2MB 85nS on one riser, 8MB (4x 2MB 80nS)
on 2-14 80386 Memory Adapter w/ROM. About the only thing
missing is support for 8x 2MB 85nS on the risers. That would
give us 16MB with no need for a memory expansion adapter
taking one slot...
This side view shows the DBA-ESDI edge connector seated into
the planar socket. I do not know if the old style risers
(with electrolytic caps between SIMMs) is the key to
success, or if the new memory risers also work.
Total System Memory reports 16.0MB installed, 15.6MB Usable
(includes memory adapter!)
Built In Features, Installed Memory reports 8.0MB (planar
Usable System-Board Memory is "Parity"... I didn't know
there was a choice...
Enhanced 80386 Memory Expansion Adapter w/ROM
Installed Memory is 8.0MB
ROM Address DE000 - DFFFF....
And here is the 160MB DBA-ESDI, Integrated Fixed Disk and
3167 on Type 0
Well, this proves the 3167 is socket compatible with the
Type 0 complex FPU socket. Something I did not know.
3167 looks to be supported by the Type 0 complex.
Note: The 3167 is a
single chip successor to the three-chip 1167 (163, 1164,
X1164 Multiply / Divide Unit
X1165 Arithmetic Unit
3167 Phong Shading Demo
Integrated Fixed Disk and Controller (inegrated into planar
DMA Arbitration Level
DMA channel used to transfer data
5">, 6, 7, 0, 1, 3, 4
DMA Burst Pacing Interval
Time interval between DMA transfer bursts
during which the Micro Channel is released by the fixed
disk controller for use by the processor.
Microseconds>, 31, 16, Burst Disabled"
DMA Pacing Control
Enables or disables the DMA Burst Pacing
Time to Release
Time the fixed disk controller keeps MC after
being preempted. If 'DMA Pacing Control' is
<Enabled>, Time to Release default is immediate.
Normally, select <6 Microseconds>.
Microseconds">, 3, Immediate
Primary/Alternate Port Addresses
Bus Arbitration. Will adapter release control
of MC bus after using it exclusively
<Primary> or <Alternate> work
equally well. If there are two integrated fixed disks, then
select <Primary> for one and <Alternate>
for the other.
3510h-3517h)>, Alternate (3518-351f)
9595 Main Page