Abit 386 AT3
ABIT COMPUTER CORPORATION
386 AT3
| Processor |
AMD386DX/80386DX/CX486DLC/Ti486DLC/Ti486SXL2
|
| Processor Speed |
33/40MHz
|
| Chip Set |
ALI
|
| Max. Onboard DRAM |
192MB
|
| Cache |
32/128KB
|
| BIOS |
AMI/AWARD
|
| Dimensions |
230mm x 218mm
|
| I/O Options |
Green PC feature connector
|
| NPU Options |
80387DX
|
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location |
|
External battery
|
JP3
|
Speaker
|
JP11
|
|
Turbo switch
|
JP8
|
Power LED & keylock
|
JP12
|
|
Turbo LED
|
JP9
|
Green PC feature connector
|
JP15
|
|
Reset switch
|
JP10
|
||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
|
�
|
CMOS normal operation
|
JP2
|
pins 1 & 2
|
|
CMOS memory clear
|
JP2
|
pins 2 & 3
| |
|
�
|
CPU clock select 33MHz
|
JP13
|
pins 1 & 2, 3 & 4
|
|
CPU clock select 40MHz
|
JP13
|
pins 5 & 6
| |
|
�
|
128KB cache enabled
|
JP16
|
Closed
|
|
32KB cache enabled
|
JP16
|
Open
| |
|
Note:Pins designated are in the closed position.
| |||
| DRAM CONFIGURATION | ||
| Size | Bank 0 | Bank 1/2 |
|
1MB
|
(4) 256K x 9
|
NONE
|
|
2MB
|
(4) 256K x 9
|
(1) 256K x 36
|
|
4MB
|
(4) 1M x 9
|
NONE
|
|
5MB
|
(4) 1M x 9
|
(1) 256K x 36
|
|
8MB
|
(4) 1M x 9
|
(1) 1M x 36
|
|
16MB
|
(4) 4M x 9
|
NONE
|
|
17MB
|
(4) 4M x 9
|
(1) 256K x 36
|
|
20MB
|
(4) 4M x 9
|
(1) 1M x 36
|
|
32MB
|
(4) 4M x 9
|
(1) 4M x 36
|
|
64MB
|
(4) 16M x 9
|
NONE
|
|
192MB
|
(4) 16M x 9
|
(1) 32M x 36
|
| CACHE CONFIGURATION | ||
| Size | Bank 0 | TAG |
|
32KB
|
(4) 8K x 8
|
(1) 8K x 8
|
|
128KB
|
(4) 32K x 8
|
(1) 16K x 8
|
| CPU TYPE CONFIGURATION | ||
| CPU Type | JP1 | JP5 |
|
80386DX
|
pins 1 & 2 closed
|
pins 1 & 2 closed
|
|
80486DLC
|
pins 2 & 3 closed
|
pins 2 & 3 closed
|
| GREEN FEATURE CONNECTOR CONFIGURATION | |
| Pin | Function |
|
1
|
HSYNC
|
|
2
|
Ground
|
|
3
|
VSYNC
|
|
4
|
Ground
|
|
5
|
ENVEDIO
|
|
6
|
Ground
|
|
7
|
Monitor AC power
|
|
8
|
Ground
|