TURBOEXPRESS 486VL Motherboard Settings and Configuration
GENOA SYSTEMS CORPORATION
TURBOEXPRESS 486VL
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2/80486DX3/ Pentium Overdrive |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)/99(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (3) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | JP1 | Turbo switch | JP19 |
Speaker | JP15 | 32-bit VESA Local bus slot | S1 |
Power LED & keylock | JP16 | 32-bit VESA Local bus slot | S2 |
Reset switch | JP17 | 32-bit VESA Local bus slot | S3 |
Turbo LED | JP18 |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | JP2 | N/A |
» | Factory configured - do not alter | JP3 | N/A |
» | Factory configured - do not alter | JP21 | N/A |
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 |
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 | 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) 16K x 8/(1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP11 | JP12 |
64KB | Open | Open |
128KB | pins 1 & 2 closed | Closed |
256KB | pins 2 & 3 closed | Closed |
CPU TYPE CONFIGURATION | ||
Type | JP7 | JP8 |
80486SX | pins 2 & 3 closed | Open |
80487SX | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
80486DX | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
ODP486SX (168 pin) | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
ODP486SX (169 pin) | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
ODP486SX2 | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
80486DX2 | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
80486DX3 | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
Pentium Overdrive | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
CPU SPEED CONFIGURATION | |||
Speed | JP4 | JP5 | JP6 |
20MHz | Closed | Closed | Open |
25MHz | Closed | Open | Closed |
33MHz | Open | Closed | Closed |
40MHz | Closed | Open | Open |
50i MHz | Closed | Open | Closed |
50MHz | Open | Closed | Open |
66i MHz | Open | Closed | Closed |
99i MHz | Open | Closed | Closed |
VESA WAIT STATE/BUS SPEED CONFIGURATION | |||
CPU Speed | Wait states | JP13 | JP14 |
£ 33MHz | 0 wait states | Open | Open |
> 33MHz | 1 wait state | Closed | Closed |
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