UNIDENTIFIED
UC 4915-C AIO
Processor | 80486SX/CX487SX/80486DX/80486DX2/P23N/P23T/Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | UMC |
Max. Onboard DRAM | 64MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | Floppy drive interface, game port, IDE interface, parallel port, serial ports (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Speaker | J9 |
Serial port 1 | J2 | IDE interface LED | JP14 |
Game port | J4 | Power LED & keylock | JP40 |
Parallel port | J5 | Reset switch | JP41 |
Serial port 2 | J6 | Turbo switch | JP42 |
Floppy drive interface | J7 | Turbo LED | JP43 |
IDE interface | J8 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | BIOS type select EPROM | JP2 | pins 1 & 2 closed |
BIOS type select flash BIOS | JP2 | pins 2 & 3 closed | |
» | Floppy drive interface enabled | JP3 | pins 1 & 2 closed |
Floppy drive interface disabled | JP3 | pins 2 & 3 closed | |
» | Parallel port enabled | JP4 | pins 1 & 2 closed |
Parallel port disabled | JP4 | pins 2 & 3 closed | |
» | COM2/4 enabled | JP5 | pins 1 & 2 closed |
COM2/4 disabled | JP5 | pins 2 & 3 closed | |
» | COM2 enabled | JP6 | pins 1 & 2 closed |
COM4 enabled | JP6 | pins 2 & 3 closed | |
» | COM1 enabled | JP7 | pins 1 & 2 closed |
COM3 enabled | JP7 | pins 2 & 3 closed | |
» | COM1/3 enabled | JP8 | pins 1 & 2 closed |
COM1/3 disabled | JP8 | pins 2 & 3 closed | |
» | Printer I/O port select LPT2 | JP9 | pins 1 & 2 closed |
Printer I/O port select LPT3 | JP9 | pins 2 & 3 closed | |
» | Monitor type select monochrome | JP10 | pins 1 & 2 closed |
Monitor type select color | JP10 | pins 2 & 3 closed | |
» | Game port enabled | JP11 | pins 1 & 2 closed |
Game port disabled- | JP11 | pins 2 & 3 closed | |
» | Hard drive installed | JP12 | pins 2 & 3 closed |
Hard drive not installed | JP12 | pins 1 & 2 closed | |
» | IDE interface enabled | JP13 | pins 1 & 2 closed |
IDE interface disabled | JP13 | pins 2 & 3 closed | |
» | Weitek VGA card not installed | JP30 | pins 1 & 2 closed |
Weitek VGA card installed | JP30 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 512K x 36 | NONE | NONE | NONE |
2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | NONE |
3MB | (1) 512K x 36 | NONE | (1) 256K x 36 | NONE |
3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
4MB | (1) 512K x 36 | NONE | (1) 256K x 36 | (1) 256K x 36 |
4MB | (1) 512K x 36 | NONE | (1) 512K x 36 | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
5MB | (1) 1M x 36 | (1) 256K x 36 | NONE | NONE |
6MB | (1) 512K x 36 | NONE | (1) 1M x 36 | NONE |
6MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
7MB | (1) 512K x 36 | NONE | (1) 1M x 36 | (1) 256K x 36 |
7MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
8MB | (1) 2M x 36 | NONE | NONE | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
9MB | (1) 2M x 36 | NONE | (1) 256K x 36 | NONE |
9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
10MB | (1) 512K x 36 | NONE | (1) 2M x 36 | NONE |
10MB | (1) 2M x 36 | NONE | (1) 256K x 36 | (1) 256K x 36 |
10MB | (1) 2M x 36 | NONE | (1) 512K x 36 | NONE |
10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
12MB | (1) 2M x 36 | NONE | (1) 1M x 36 | NONE |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
13MB | (1) 2M x 36 | NONE | (1) 1M x 36 | (1) 256K x 36 |
13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 |
16MB | (1) 2M x 36 | NONE | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | NONE | (1) 2M x 36 | NONE |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
17MB | (1) 4M x 36 | (1) 256K x 36 | NONE | NONE |
18MB | (1) 512K x 36 | NONE | (1) 4M x 36 | NONE |
18MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
19MB | (1) 512K x 36 | NONE | (1) 4M x 36 | (1) 256K x 36 |
19MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
22MB | (1) 512K x 36 | NONE | (1) 4M x 36 | (1) 1M x 36 |
22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
24MB | (1) 2M x 36 | NONE | (1) 4M x 36 | NONE |
24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
25MB | (1) 2M x 36 | NONE | (1) 4M x 36 | (1) 256K x 36 |
25MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 |
28MB | (1) 2M x 36 | NONE | (1) 4M x 36 | (1) 1M x 36 |
28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 | NONE |
34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 |
36MB | (1) 512K x 36 | NONE | (1) 4M x 36 | (1) 4M x 36 |
36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | NONE |
37MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 |
40MB | (1) 2M x 36 | NONE | (1) 4M x 36 | (1) 4M x 36 |
40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 |
52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | JP31 | JP34 | JP35 | JP36 |
64KB | Open | Open | Open | pins 1 & 2 closed |
128KB | Open | Closed | pins 2 & 3 closed | pins 2 & 3 closed |
256KB | Closed | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||
Type | JP38 | JP39 |
80486SX | pins 2 & 3 closed | Open |
80486DX | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
80486DX2 | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
P23N | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
P23T | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
Pentium Overdrive | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
CPU TYPE CONFIGURATION (CX487SX) | |||
Type | JP21 | JP25 | JP37 |
Installed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
Not installed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
CPU SPEED CONFIGURATION | ||
Speed | JP26 | JP27 |
25MHz | Closed | Closed |
33MHz | Open | Closed |
40MHz | Closed | Open |
50iMHz | Closed | Closed |
50MHz | Open | Open |
66iMHz | Open | Closed |