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 |