SM 486-50UVL Motherboard Settings and Configuration
SPRITE, INC.
SM 486-50UVL
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 25/33/40/50(internal)/50/66(internal) MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | MR |
Dimensions | 330mm x 220mm |
I/O Options | 32-bit VESA local bus slots (3) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | J1 | Power LED & keylock | J5 |
Speaker | J2 | Turbo switch | JP6 |
External battery | J3 | 32-bit VESA local bus slots | S1, S2, & S3 |
Reset switch | J4 |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CPU speed select iOSC/2 | W3 | Closed |
| CPU speed select iOSC/1 | W3 | Open |
» | System password enabled/Monitor type select monochrome | W14 | Closed |
| System password disabled/Monitor type select color | W14 | Open |
» | Battery select internal | W15 | Closed |
| Battery select external | W15 | Open |
» | Factory configured - do not alter | W16 | Unknown |
» | Factory configured - do not alter | W17 | Unknown |
VESA BUS SPEED (ID3) CONFIGURATION | |
CPU speed | JP1 (ID3) |
£ 33MHz | Open |
> 33MHz | Closed |
32-BIT VESA LOCAL BUS AVAILABILITY CONFIGURATION | ||
CPU Speed | Slots Available | JP2 |
£ 50MHz | S1, S2, & S3 | pins 2 & 3 closed |
66MHz | S3 | pins 1 & 2 closed |
Note: Board speed of 66MHz is an optional upgrade available through the manufacturer. | ||
CACHE CONFIGURATION | ||||
Size | Cache | Location | TAG | Dirty Bit |
64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 8K x 8 | (1) 16K x 4 |
128KB | (4) 32K x 8 | Bank 0 | (1) 8K x 8 | (1) 16K x 4 |
256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 32K x 8 | (1) 16K x 4 |
CACHE JUMPER CONFIGURATION | ||||||||
Size | W6 | W7 | W8 | W9 | W10 | W11 | W12 | W13 |
64KB | 1 & 2 | 1 & 2 | Open | Open | Open | Open | Open | 1 & 2 |
128KB | 1 & 2 | 2 & 3 | Open | Closed | Open | Closed | 1 & 2 | 2 & 3 |
256KB | 2 & 3 | 2 & 3 | Closed | Closed | Closed | Closed | 2 & 3 | 1 & 2 |
Note: Pins designated should be in the closed position. | ||||||||
CPU TYPE CONFIGURATION | ||
CPU type | W1 | W2 |
80486SX | pins 2 & 3 closed | Open |
80487SX/ODP486SX | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
80486DX/80486DX2 | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
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 |
17MB | (4) 256K x 9 | (4) 4M x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
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