ABIT COMPUTER CORPORATION
PW4/PW4T REV. 1.3
|
Processor |
80486SX/SL80486SX/CX486M7/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)MHz |
|
Chip Set |
Unidentifed |
|
Max. Onboard DRAM |
192MB |
|
Cache |
128/256/512/1024KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Power LED & keylock |
JW1 |
|
Green PC connector |
JP47 |
Speaker |
JW2 |
|
Green PC connector |
JP48 |
Turbo LED |
JW3 |
|
Green PC connector |
JP49 |
Turbo switch |
JW4 |
|
Green PC connector |
JP50 |
Reset switch |
JW5 |
|
Green PC connector |
JP51 |
32-bit VESA local bus slots |
SL1 - SL3 |
|
Green PC connector |
JP52 |
|
|
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
» |
Monitor type select color |
JP5 |
Closed |
|
|
Monitor type select monochrome |
JP5 |
Open |
|
» |
Factory configured - do not alter |
JP6 |
Open |
|
» |
Factory configured - do not alter |
JP41 |
Open |
|
» |
CMOS memory normal operation |
JP67 |
pins 1 & 2 closed |
|
|
CMOS memory clear |
JP67 |
pins 2 & 3 closed |
|
DRAM CONFIGURATION |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
|
1MB |
NONE |
(1) 256K x 36 |
NONE |
|
1MB |
NONE |
NONE |
(1) 256K x 36 |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
NONE |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
NONE |
|
2MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
2MB |
NONE |
(1) 512K x 36 |
NONE |
|
2MB |
NONE |
NONE |
(1) 512K x 36 |
|
3MB |
(4) 256K x 9 |
(1) 512K x 36 |
NONE |
|
3MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
3MB |
(4) 256K x 9 |
(1) 512K x 36 |
NONE |
|
3MB |
NONE |
(1) 256K x 36 |
(1) 512K x 36 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
|
4MB |
NONE |
(1) 1M x 36 |
NONE |
|
4MB |
NONE |
(1) 512K x 36 |
(1) 512K x 36 |
|
4MB |
NONE |
NONE |
(1) 1M x 36 |
|
5MB |
(4) 256K x 9 |
(1) 1M x 36 |
NONE |
|
5MB |
(4) 1M x 9 |
(1) 256K x 36 |
NONE |
|
5MB |
(4) 1M x 9 |
(1) 256K x 36 |
NONE |
|
5MB |
(4) 256K x 9 |
(1) 512K x 36 |
(1) 512K x 36 |
|
5MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
|
6MB |
(4) 1M x 9 |
(1) 512K x 36 |
NONE |
|
6MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
6MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
6MB |
(4) 1M x 9 |
(1) 512K x 36 |
NONE |
|
6MB |
NONE |
(1) 1M x 36 |
(1) 512K x 36 |
|
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
NONE |
|
8MB |
(4) 1M x 9 |
(1) 512K x 36 |
(1) 512K x 36 |
|
8MB |
NONE |
(1) 2M x 36 |
NONE |
|
8MB |
NONE |
NONE |
(1) 2M x 36 |
|
9MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
9MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
(4) 256K x 9 |
(1) 2M x 36 |
NONE |
|
11MB |
(4) 256K x 9 |
(1) 512K x 36 |
(1) 2M x 36 |
|
12MB |
(4) 1M x 9 |
(1) 2M x 36 |
NONE |
|
DRAM CONFIGURATION (CON’T) |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
12MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(4) 1M x 9 |
(1) 2M x 36 |
NONE |
|
12MB |
NONE |
(1) 1M x 36 |
(1) 2M x 36 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
|
16MB |
NONE |
(1) 4M x 36 |
NONE |
|
16MB |
NONE |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
NONE |
NONE |
(1) 4M x 36 |
|
17MB |
(4) 256K x 9 |
(1) 4M x 36 |
NONE |
|
17MB |
(4) 4M x 9 |
(1) 256K x 36 |
NONE |
|
17MB |
(4) 256K x 9 |
(1) 2M x 36 |
(1) 2M x 36 |
|
17MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
|
18MB |
(4) 4M x 9 |
(1) 512K x 36 |
NONE |
|
18MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
18MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
18MB |
(4) 4M x 9 |
(1) 512K x 36 |
NONE |
|
18MB |
NONE |
(1) 4M x 36 |
(1) 512K x 36 |
|
20MB |
(4) 1M x 9 |
(1) 4M x 36 |
NONE |
|
20MB |
(4) 4M x 9 |
(1) 1M x 36 |
NONE |
|
20MB |
(4) 1M x 9 |
(1) 2M x 36 |
(1) 2M x 36 |
|
20MB |
(4) 4M x 9 |
(1) 512K x 36 |
(1) 512K x 36 |
|
20MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
|
21MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
21MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
21MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB |
(4) 4M x 9 |
(1) 2M x 36 |
NONE |
|
24MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
24MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB |
(4) 4M x 9 |
(1) 2M x 36 |
NONE |
|
24MB |
NONE |
(1) 4M x 36 |
(1) 2M x 36 |
|
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
NONE |
|
32MB |
(4) 4M x 9 |
(1) 2M x 36 |
(1) 2M x 36 |
|
32MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
NONE |
(1) 8M x 36 |
NONE |
|
32MB |
NONE |
NONE |
(1) 8M x 36 |
|
33MB |
(4) 256K x 9 |
(1) 8M x 36 |
NONE |
|
33MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
33MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
33MB |
(4) 256K x 9 |
(1) 8M x 36 |
NONE |
|
33MB |
NONE |
(1) 256K x 36 |
(1) 8M x 36 |
|
34MB |
NONE |
(1) 512K x 36 |
(1) 8M x 36 |
|
35MB |
(4) 256K x 9 |
(1) 512K x 36 |
(1) 8M x 36 |
|
36MB |
(4) 1M x 9 |
(1) 8M x 36 |
NONE |
|
36MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
36MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
DRAM CONFIGURATION (CON’T) |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
36MB |
(4) 1M x 9 |
(1) 8M x 36 |
NONE |
|
36MB |
NONE |
(1) 1M x 36 |
(1) 8M x 36 |
|
38MB |
(4) 1M x 9 |
(1) 512K x 36 |
(1) 8M x 36 |
|
40MB |
NONE |
(1) 2M x 36 |
(1) 8M x 36 |
|
41MB |
(4) 256K x 9 |
(1) 2M x 36 |
(1) 8M x 36 |
|
44MB |
(4) 1M x 9 |
(1) 2M x 36 |
(1) 8M x 36 |
|
48MB |
(4) 4M x 9 |
(1) 8M x 36 |
NONE |
|
48MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
48MB |
NONE |
(1) 4M x 36 |
(1) 8M x 36 |
|
56MB |
(4) 4M x 9 |
(1) 2M x 36 |
(1) 8M x 36 |
|
64MB |
(4) 16M x 9 |
NONE |
NONE |
|
64MB |
NONE |
(1) 16M x 36 |
NONE |
|
64MB |
NONE |
(1) 8M x 36 |
(1) 8M x 36 |
|
64MB |
NONE |
NONE |
(1) 16M x 36 |
|
65MB |
(4) 256K x 9 |
(1) 16M x 36 |
NONE |
|
65MB |
(4) 16M x 9 |
(1) 256K x 36 |
NONE |
|
65MB |
(4) 16M x 9 |
(1) 256K x 36 |
NONE |
|
65MB |
(4) 256K x 9 |
(1) 8M x 36 |
(1) 8M x 36 |
|
65MB |
NONE |
(1) 256K x 36 |
(1) 16M x 36 |
|
66MB |
(4) 16M x 9 |
(1) 512K x 36 |
NONE |
|
66MB |
(4) 16M x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
66MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 16M x 36 |
|
66MB |
(4) 16M x 9 |
(1) 512K x 36 |
NONE |
|
66MB |
NONE |
(1) 16M x 36 |
(1) 512K x 36 |
|
68MB |
(4) 1M x 9 |
(1) 16M x 36 |
NONE |
|
68MB |
(4) 16M x 9 |
(1) 1M x 36 |
NONE |
|
68MB |
(4) 1M x 9 |
(1) 8M x 36 |
(1) 8M x 36 |
|
68MB |
(4) 16M x 9 |
(1) 512K x 36 |
(1) 512K x 36 |
|
68MB |
NONE |
(1) 1M x 36 |
(1) 16M x 36 |
|
69MB |
(4) 16M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
69MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 16M x 36 |
|
69MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 16M x 36 |
|
72MB |
(4) 16M x 9 |
(1) 2M x 36 |
NONE |
|
72MB |
(4) 16M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
72MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 16M x 36 |
|
72MB |
(4) 16M x 9 |
(1) 2M x 36 |
NONE |
|
72MB |
NONE |
(1) 16M x 36 |
(1) 2M x 36 |
|
74MB |
(4) 16M x 9 |
(1) 512K x 36 |
(1) 2M x 36 |
|
80MB |
(4) 4M x 9 |
(1) 16M x 36 |
NONE |
|
80MB |
(4) 16M x 9 |
(1) 4M x 36 |
NONE |
|
80MB |
(4) 16M x 9 |
(1) 2M x 36 |
(1) 2M x 36 |
|
81MB |
(4) 16M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
81MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 16M x 36 |
|
81MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 16M x 36 |
|
DRAM CONFIGURATION (CON’T) |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
84MB |
(4) 16M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
84MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 16M x 36 |
|
84MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 16M x 36 |
|
96MB |
(4) 16M x 9 |
(1) 8M x 36 |
NONE |
|
96MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 16M x 36 |
|
96MB |
NONE |
(1) 16M x 36 |
(1) 8M x 36 |
|
128MB |
(4) 16M x 9 |
(1) 16M x 36 |
NONE |
|
128MB |
(4) 16M x 9 |
(1) 8M x 36 |
(1) 8M x 36 |
|
128MB |
NONE |
(1) 16M x 36 |
(1) 16M x 36 |
|
129MB |
(4) 16M x 9 |
(1) 256K x 36 |
(1) 16M x 36 |
|
129MB |
(4) 256K x 9 |
(1) 16M x 36 |
(1) 16M x 36 |
|
132MB |
(4) 16M x 9 |
(1) 1M x 36 |
(1) 16M x 36 |
|
132MB |
(4) 1M x 9 |
(1) 16M x 36 |
(1) 16M x 36 |
|
144MB |
(4) 16M x 9 |
(1) 4M x 36 |
(1) 16M x 36 |
|
144MB |
(4) 4M x 9 |
(1) 16M x 36 |
(1) 16M x 36 |
|
192MB |
(4) 16M x 9 |
(1) 16M x 36 |
(1) 16M x 36 |
|
CACHE CONFIGURATION |
|||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
256KB |
(4) 64K x 8 |
NONE |
(1) 64K x 8 |
|
512KB |
(4) 64K x 8 |
(4) 64K x 8 |
(1) 64K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(1) 128K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 128K x 8 |
|
CACHE JUMPER CONFIGURATION |
||||
|
Size |
JP60 |
JP61 |
JP62 |
JPX3 |
|
128KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 9 - 16 closed |
|
256KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 13 - 20 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 3 - 10 closed |
|
512KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 - 8 closed |
|
512KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 3 - 10 closed |
|
1MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 - 8 closed |
|
CPU TYPE CONFIGURATION |
||||
|
Type |
JP15 |
JP16 |
JP17 |
JP37 |
|
80486SX |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
SL80486SX |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
CX486M7 |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
AM486DX |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
80486DX |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
SL80486DX |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
CX486DX2-50 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
1 & 2 |
|
CX486DX2-66 |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
CX486DX2-80 |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
AM486DX2 (3.45v) |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
AM486DX2 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
80486DX2 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
SL80486DX2 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
AM486DX4 |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
80486DX4-75 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
80486DX4-100 |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
Note: DX4 CPU is only available on the PW4T mainboard. |
||||
|
CPU TYPE CONFIGURATION |
||||
|
Type |
JP38 |
JP39 |
JP40 |
RN8 |
|
80486SX |
Open |
Open |
Open |
Installed |
|
SL80486SX |
Open |
Open |
Open |
Installed |
|
CX486M7 |
Open |
Open |
Open |
Installed |
|
AM486DX |
Open |
Open |
Open |
Installed |
|
80486DX |
Open |
Open |
Open |
Installed |
|
SL80486DX |
Open |
Open |
Open |
Installed |
|
CX486DX2-50 |
Open |
Open |
Open |
Not installed |
|
CX486DX2-66 |
Open |
1 & 2 |
Open |
Not installed |
|
CX486DX2-80 |
Open |
Open |
1 & 2 |
Not installed |
|
AM486DX2 (3.45v) |
1 & 2 |
Open |
Open |
Not installed |
|
AM486DX2 |
Open |
Open |
Open |
Installed |
|
80486DX2 |
Open |
Open |
Open |
Installed |
|
SL80486DX2 |
Open |
Open |
Open |
Installed |
|
AM486DX4 |
1 & 2 |
Open |
1 & 2 |
Not installed |
|
80486DX4-75 |
Open |
Open |
Open |
Not installed |
|
80486DX4-100 |
1 & 2 |
Open |
1 & 2 |
Not installed |
|
Note: Pins designated should be in the closed position. DX4 CPU is only available on the PW4T mainboard. |
||||
|
CPU TYPE CONFIGURATION |
|||||
|
Type |
RN5 |
RN6 |
RN7 |
JP20 |
JP26 |
|
80486SX |
Not installed |
Installed |
Not installed |
Closed |
1 & 2 |
|
SL80486SX |
Not installed |
Installed |
Not installed |
Closed |
1 & 2 |
|
CX486M7 |
Installed |
Not installed |
Installed |
Open |
1 & 2 |
|
AM486DX |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
80486DX |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
SL80486DX |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
AM486DX2 |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
80486DX2 |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
SL80486DX2 |
Not installed |
Installed |
Installed |
Open |
1 & 2 |
|
AM486DX4 |
Not installed |
Installed |
Installed |
Open |
Open |
|
80486DX4 |
Not installed |
Installed |
Installed |
Open |
Open |
|
Note: Pins designated should be in the closed position. DX4 CPU is only available on the PW4T mainboard. |
|||||
|
CPU TYPE CONFIGURATION (CON’T) |
||||
|
Type |
JP42 |
JP65 |
JPX1 |
JPX2 |
|
80486SX |
Open |
Open |
pins 5 - 12 closed |
Open |
|
SL80486SX |
Closed |
Open |
pins 5 - 12 closed |
Open |
|
CX486M7 |
Closed |
Closed |
pins 1 - 8 closed |
pins 1 - 8 closed |
|
AM486DX |
Open |
Closed |
pins 5 - 12 closed |
Open |
|
80486DX |
Open |
Closed |
pins 5 - 12 closed |
Open |
|
SL80486DX |
Closed |
Closed |
pins 5 - 12 closed |
Open |
|
AM486DX2 |
Open |
Closed |
pins 5 - 12 closed |
Open |
|
80486DX2 |
Open |
Closed |
pins 5 - 12 closed |
Open |
|
SL80486DX2 |
Closed |
Closed |
pins 5 - 12 closed |
Open |
|
AM486DX4 |
Closed |
Closed |
pins 5 - 12 closed |
Open |
|
80486DX4 |
Closed |
Closed |
pins 5 - 12 closed |
Open |
|
Note: DX4 CPU is only available on the PW4T mainboard. |
||||
|
CPU SPEED CONFIGURATION(U30 CLOCK GENERATOR) |
|||
|
Speed |
JP27 |
JP28 |
JP29 |
|
20MHz |
Open |
Open |
Closed |
|
25MHz |
Closed |
Open |
Closed |
|
33MHz |
Open |
Closed |
Closed |
|
40MHz |
Closed |
Open |
Open |
|
50iMHz |
Closed |
Open |
Closed |
|
66iMHz |
Open |
Closed |
Closed |
|
75iMHz |
Closed |
Open |
Closed |
|
80iMHz |
Closed |
Open |
Open |
|
100iMHz |
Open |
Closed |
Closed |
|
CPU SPEED CONFIGURATION(U31 CLOCK GENERATOR) |
|||
|
Speed |
JP27 |
JP28 |
JP29 |
|
20MHz |
Open |
Open |
Open |
|
25MHz |
Open |
Open |
Closed |
|
33MHz |
Closed |
Closed |
Closed |
|
40MHz |
Open |
Closed |
Closed |
|
50iMHz |
Open |
Open |
Closed |
|
66iMHz |
Closed |
Closed |
Closed |
|
75iMHz |
Open |
Open |
Closed |
|
80iMHz |
Open |
Closed |
Closed |
|
100iMHz |
Closed |
Closed |
Closed |
|
VESA WAIT STATE CONFIGURATION |
|
|
Wait states |
JP9 |
|
0 wait states |
Open |
|
1 wait state |
Closed |
|
BUS SPEED CONFIGURATION |
|
|
CPU speed |
JP10 |
|
<= 33MHz |
Open |
|
> 33MHz |
Closed |