JOINDATA SYSTEMS, INC.
G386U
Processor |
80386DX |
Processor Speed |
33/40MHz |
Chip Set |
UMC |
Max. onboard DRAM |
32MB |
Cache |
32/64/128/256KB |
BIOS |
AMI |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
80387DX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Reset switch |
J9 |
Speaker |
J12 |
Turbo LED |
J10 |
Power LED & keylock |
J13 |
Turbo switch |
J11 |
External battery |
J14 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper/Switch |
Position | |
Factory configured - do not alter |
J1 |
Unknown | |
Factory configured - do not alter |
J2 |
Unknown | |
NPU enabled |
W1 & W10 |
Closed | |
NPU disabled |
W1 & W10 |
Open | |
Monitor type select color |
W11 |
Closed | |
Monitor type select monochrome |
W11 |
Open | |
CMOS memory normal operation (Internal Battery) |
W9 |
Closed | |
CMOS memory normal operation (External Battery) |
W9 |
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 |
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
CACHE CONFIGURATION | |||
Size |
U21, U22, U23, & U24 |
U15, U16, U17, & U18 |
TAG |
32KB |
(4) 8K x 8 |
NONE |
(2) 16K x 4 |
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 16K x 4 |
128KB |
(4) 32K x 8 |
NONE |
(2) 64K x 4 |
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 64K x 4 |
Note:U21 - U24 and U15 - U18 may be located on the system board. |
CACHE JUMPER CONFIGURATION | |||||
Size |
W3 |
W4 |
W5 |
W6 |
W7 |
32KB |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
Open |
64KB |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
Open |
128KB |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
pins 1 & 2 |
256KB |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
Note:Pins designated should be in the closed position. |
NPU CLOCK CONFIGURATION | |||
Mode |
OSC2 |
W8 |
W9 |
Synchronous |
Not installed |
pins 1 & 2 closed |
Open |
Asynchronous 25MHz |
50MHz |
pins 2 & 3 closed |
Closed |
Asynchronous 33HMz |
66MHz |
pins 2 & 3 closed |
Closed |