Decstation Main Logic Board; Decstation 316 + Cpu Board; Decstation 325 Ccpu Board - DEC DECstation 316+ Service Manual

Table 1–1 (Cont.) Base System Configurations
Model
Number Description
PC465-AA DECstation 425
0K Memory Adapter with 1 Mbyte RAM (minimum),
3.5" 1.44 Mbyte floppy disk drive, on-board IDE device
interface, serial/parallel port, mouse and keyboard
port, 6 PC/AT expansion slots (4 full size; 2 half-size), 2
dedicated 32-bit memory slots, 3 additional front panel
storage bays (3.5" or 5.25"), 16-bit VGA adapter, with
the power supply factory set at 120 Vac, 60 Hz.
PC465-A2 Same as PC465-AA, But with no power cord or
keyboard.
PC465-A3 Same as PC465-A2, but the power supply is factory set
at 240 Vac, 50 Hz.

1.4.1 DECstation Main Logic Board

The DECstation main logic board contains a floppy disk controller,
serial and parallel ports, PS/2-style mouse port, IDE drive
connector, six 16-bit expansion slots (usable as 8-bit also), and
two dedicated 32-bit memory expansion slots (one slot contains a
0K Memory Adapter with 1 Mbyte of RAM minimum).
1.4.2 DECstation 316
The CPU board of the DECstation 316
80386 CPU chip and a socket for an optional Intel 80387 math
coprocessor. No cache memory is provided on the DECstation
316 .
+
1.4.3 DECstation 325
The CPU board of the DECstation 325
80386 CPU chip, 32 Kbytes of cache memory, and a socket for an
optional Intel 80387 math coprocessor.
; 80486/25 MHz, base system box,
C
CPU Board
+
contains a 16 MHz Intel
+
CPU Board
C
contains a 25 MHz Intel
C
Overview 1–7