FORCOM TECHNOLOGY CORPORATION
B730/B731/B733
|
Processor |
80486SX/80487SX/80486DX |
|
Processor Speed |
20/25/33MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
328mm x 227mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Speaker |
J5 |
|
Turbo LED |
J3 |
Reset switch |
J6 |
|
Power LED & Keylock |
J4 |
Turbo switch |
J7 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Monitor type select monochrome |
J2 |
Open |
|
Monitor type select color |
J2 |
Closed | |
| » |
CPU speed select iOSC |
J11 |
pins 2 & 3 closed |
|
CPU speed select iOSC/2 |
J11 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
9MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
10MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
13MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
24MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
|
28MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
36MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 1M x 9 |
NONE |
|
40MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
48MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
|
52MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 1M x 9 |
|
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
Note:Banks 2 & 3 are optional SIMM sockets and must be added to the mainboard by the user. | ||||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Tag (U41) |
Tag (U42) |
|
64KB |
(8) 8K x 8 |
(1) 16K x 4 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
(1) 16K x 4 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
J13 |
J14 |
J15 |
|
64KB |
Open |
Open |
Open |
|
256KB |
Closed |
Closed |
Closed |
|
CPU TYPE CONFIGURATION | |||
|
Type |
J9 |
J10 |
J16 |
|
80486SX |
pins 2 & 3 closed |
Open |
Open |
|
80487SX |
pins 1 & 2 closed |
Closed |
pins 1 & 2 closed |
|
80486DX |
pins 1 & 2 closed |
Closed |
pins 2 & 3 closed |