ENTERPRISE III (VERSION 2) Motherboard Settings and Configuration
AMERICAN MEGATRENDS, INC.
ENTERPRISE III (VERSION 2)
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2/ODP586SX |
Processor Speed | 20/25/33/50(internal)/50/66(internal) |
Chip Set | AMI |
Max. Onboard DRAM | 256MB |
Cache | 256KB |
BIOS | AMI |
Dimensions | 355mm x 304mm |
I/O Options | 32-bit VESA local bus slots (2), PS/2 mouse port (2) |
NPU Options | NONE |
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CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | D5 | Power LED & keylock | J10 |
Diagnostic LED | J1 | Turbo switch | J14 |
PS/2 mouse port | J3 | 10-pin PS/2 mouse connector | J100 |
Speaker | J8 | 32-bit VESA Local bus slot | S1 |
Reset switch | J9 | 32-bit VESA Local bus slot | S2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Flash BIOS disabled | J2 | Open |
| Flash BIOS enabled | J2 | Closed |
» | CPU type select 80486DX | J7 | Pins 1 & 2, 3 & 4 closed |
| CPU type select 80486SX | J7 | Pins 2 & 3 closed |
» | PS/2 mouse enabled | J12 | Pins 1 & 2 closed |
| PS/2 mouse disabled | J12 | Pins 2 & 3 closed |
» | CPU priority select low | J19 | Pins 1 & 2 closed |
| CPU priority select high | J19 | Pins 2 & 3 closed |
» | Local bus ID >=33MHz | J30 | Pins 1 & 2 closed |
| Local bus ID <=33MHz | J30 | Pins 2 & 3 closed |
» | Factory configured - do not alter | SW1/1 | Off |
| Monitor type select monochrome | SW1/2 | Off |
| Monitor type select CGA | SW1/2 | On |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
18MB | (4) 256K x 9 | (4) 256K x 9 | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE | NONE | NONE |
128MB | (4) 16M x 9 | (4) 16M x 9 | NONE | NONE |
192MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | NONE |
256MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 |
CPU SPEED SELECT | |||
Speed | J20 | J21 | J24 |
20MHz | Closed | Open | Open |
25MHz | Open | Open | Open |
33MHz | Open | Open | Open |
50I Mhz | Open | Open | Open |
50MHz | Open | Open | Open |
66I MHz | Open | Open | Open |
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