EISA 486LXE (MODEL L433S) Motherboard Settings and Configuration
ACER, INC.
EISA 486LXE (MODEL L433S)
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 25/33/50(internal)/50/66(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 128MB |
SRAM Cache | 128/256KB |
BIOS | Acer |
Dimensions | 220mm x 260mm |
I/O Options | 32-bit VESA card slot |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | CN4/1 - 5 | Turbo switch | CN4/15 - 17 |
Speaker | CN4/7 - 10 | Reset switch | CN4/19 & 20 |
Turbo LED | CN4/12 & 13 | 32-bit VESA card | S1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| » | VESA bus wait states select 0 | JP8 | pins 2 & 3 closed |
VESA bus wait states select 1 | JP8 | 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 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE |
128MB | (4) 16M x 9 | (4) 16M x 9 |
CPU SPEED CONFIGURATION FOR CH9001 SYSTEM CLOCK CHIP | |
CPU Speed | JP9 |
33/66(internal)MHz | pins 1 & 4 closed |
25/50(internal)MHz | pins 3 & 6 closed |
40MHz | pins 1 & 2 and 4 & 5 closed |
50MHz | pins 2 & 5 closed |
SRAM CONFIGURATION | |||
Size | Cache SRAM | Location | Jumpers JP6 & JP7 |
128KB | (4) 32K x 8 | Bank 0 | pins 2 & 3 closed |
256KB | (8) 32K x 8 | Banks 0 & 1 | pins 1 & 2 closed |
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