J-BOND COMPUTER SYSTEMS CORPORATION
486-33/25/20E
|
Processor |
80486SX/80487SX/80486DX/80486DX2/P24T |
|
Processor Speed |
20/25/33/50(internal)/66(internal)MHz |
|
Chip Set |
OPTI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
32MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
AMI/Award |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo switch |
J5 |
|
Reset switch |
J2 |
Speaker |
J6 |
|
Turbo LED |
J3 |
Power LED & keylock |
J7 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Turbo enabled (selectable with turbo switch on case) |
X4 |
Pins 1 & 2 closed | |
|
Turbo enabled (selectable through keyboard CTRL, ALT +/- |
X4 |
Pins 2 & 3 closed | |
|
Turbo enabled (continuous turbo mode) |
X4 |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
None |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
None |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
None |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CPU TYPE SELECTION | |||||
|
Type |
W1 |
W2 |
W3 |
W4 |
W5 |
|
80486SX |
Open |
Open |
Open |
Closed |
Open |
|
80487SX |
Open |
Closed |
Closed |
Open |
Closed |
|
80486DX |
Closed |
Open |
Closed |
Open |
Closed |
|
80486DX2 |
Closed |
Open |
Closed |
Open |
Closed |
|
P24T |
Open |
Closed |
Closed |
Open |
Closed |