RELIALOGIC CORPORATION PRIVATE, LTD.
R486DX 33 MIBBC
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | UMC |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J1 | Turbo switch | J4 |
Speaker | J2 | Reset switch | J5 |
Turbo LED | J3 | External battery | J6 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select CGA | JP5 | Closed |
Monitor type select monochrome EGA/VGA | JP5 | Open | |
» | Battery type select internal | JP7 | Closed |
Battery type select external | JP7 | Open | |
» | Factory configured - do not alter | JP8 | Open |
» | Factory configured - do not alter | JP9 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (1) 256K x 36 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (1) 1M x 36 |
8MB | (4) 1M x 9 | (1) 1M x 36 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (1) 4M x 36 |
32MB | (4) 4M x 9 | (1) 4M x 36 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (2) 16K x 4 |
128KB | (4) 32K x 8 | NONE | (2) 16K x 4 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 16K x 4 |
CACHE JUMPER CONFIGURATION | ||||||||
Size | W10 | W11 | W12 | W13 | W14 | W15 | W16 | W17 |
64KB | Open | Open | Open | Open | 1 & 2 | 1 & 2 | 1 & 2 | Open |
128KB | Closed | Open | Closed | Open | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
256KB | Closed | Closed | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION | ||
Type | JP2 | JP11 |
80486SX | Open | pins 2 & 3 closed |
80487SX | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
80486DX/DX2 | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |