NCR CORPORATION
MODEL 3332 DESKSIDE PC80486AT
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
16/20/25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
1MB |
|
Cache |
64/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
IDE interface LED |
J1 |
Serial port 2 |
J26 |
|
Keylock |
J2 |
Serial port 1 |
J28 |
|
Chassis fan power |
J3 |
Parallel port |
J29 |
|
Speaker |
J7 |
VGA port |
J30 |
|
Floppy drive interface |
J16 |
PS/2 mouse port |
J31 |
|
IDE interface |
J17 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Internal speaker enabled |
J7 |
Pins 1 & 2 closed |
|
Internal speaker disabled |
J7 |
Open | |
|
External speaker connected |
J7 |
Pins 2 & 3 closed | |
|
|
On board video enabled |
SW1/4 |
Off |
|
On board video disabled |
SW1/4 |
On | |
|
|
Password enabled |
SW1/5 |
Off |
|
Password disabled |
SW1/5 |
On | |
|
|
Monitor type select color |
SW1/6 |
On |
|
Monitor type select monochrome |
SW1/6 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
None |
|
28MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
Note: The location of banks 0, 1, 2 & 3 are unidentified. | ||||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 16K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 16K x 4 |
|
CACHE SWITCH CONFIGURATION | ||||||||
|
Size |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
None |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
64KB |
On |
On |
On |
On |
Off |
Off |
Off |
Off |
|
256KB |
Off |
Off |
Off |
Off |
On |
On |
On |
On |
|
VIDEO MEMORY CONFIGURATION |
|
Note: The location of the 1MB video memory is unidentified. |
|
CPU SPEED SELECTION | |||
|
Speed |
SW1/1 |
SW1/2 |
SW1/3 |
|
16MHz |
On |
On |
Off |
|
20MHz |
On |
Off |
On |
|
25MHz |
Off |
On |
On |
|
33MHz |
On |
On |
On |
|
50iMHz |
Off |
On |
On |
|
66iMHz |
On |
On |
On |
|
CPU TYPE SELECTION | |
|
Type |
SW1/7 |
|
80487SX/80486DX/80486DX2 not installed |
Off |
|
80487SX/80486DX/80486DX2 installed |
On |
|
CPU TYPE SELECTION | |
|
Type |
SW1/8 |
|
80487SX |
On |
|
80486DX |
Off |
|
80486DX2 |
Off |