CHICONY, INC.
CH-471A (VER. 3)
Processor | CX486S/80486SX/SL80486SX/80486SX2/SL80486SX2/UMCU5S/ CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/CX486DX2V/ AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/P24D/ P24T/CXM9 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)/75(internal)/83(internal)/ 100(internal)MHz |
Chip Set | SIS |
Video Chip Set | None |
Maximum Onboard Memory | 128MB |
Maximum Video Memory | None |
Cache | 32/64/128/256/512/1024KB |
BIOS | Award |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit VESA local bus slots (3), green PC connectors (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | J3 | Speaker | J8 |
Green PC connector | J4 | External battery | JP19 |
Turbo switch | J5 | Green PC connector | JP38 |
Turbo LED | J6 | Green PC connector | JP39 |
Power LED & keylock | J7 | 32-bit VESA local bus slots | PC1 - PC3 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
Clock down control by STOPCLK control (80486DX4) | JP6 | Pins 1 & 2 closed | |
Clock down control by SMOUT0 control (all other CPUs) | JP6 | Pins 2 & 3 closed | |
» | CMOS memory normal operation | JP7 | Pins 1 & 2 closed |
CMOS memory clear | JP7 | Pins 2 & 3 closed | |
Monitor type select color | JP45 | Closed | |
Monitor type select monochrome | JP45 | Open |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | None | None | None |
2MB | (1) 512K x 36 | None | None | None |
2MB | (1) 256K x 36 | (1) 256K x 36 | None | None |
4MB | (1) 1M x 36 | None | None | None |
4MB | (1) 512K x 36 | (1) 512K x 36 | None | None |
5MB | (1) 256K x 36 | (1) 1M x 36 | None | None |
6MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | None |
6MB | (1) 512K x 36 | (1) 1M x 36 | None | None |
8MB | (1) 256K x 36 | (1) 256K x 36 | (1) 512K x 36 | (1) 1M x 36 |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | None |
8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
8MB | (1) 2M x 36 | None | None | None |
10MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 |
18MB | (1) 256K x 36 | (1) 256K x 36 | (1) 4M x 36 | None |
12MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
16MB | (1) 4M x 36 | None | None | None |
17MB | (1) 256K x 36 | (1) 4M x 36 | None | None |
18MB | (1) 512K x 36 | (1) 4M x 36 | None | None |
20MB | (1) 512K x 36 | (1) 512K x 36 | (1) 4M x 36 | None |
20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
24MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 4M x 36 |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | None |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
32MB | (1) 8M x 36 | None | None | None |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
36MB | (1) 1M x 36 | (1) 8M x 36 | None | None |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | None |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
48MB | (1) 4M x 36 | (1) 8M x 36 | None | None |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | None |
64MB | (1) 16M x 36 | None | None | None |
64MB | (1) 8M x 36 | (1) 8M x 36 | None | None |
68MB | (1) 1M x 36 | (1) 16M x 36 | None | None |
68MB | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 | None |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 16M x 36 | None |
80MB | (1) 4M x 36 | (1) 16M x 36 | None | None |
80MB | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 | None |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 |
96MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | None |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 16M x 36 | None |
128MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
128MB | (1) 16M x 36 | (1) 16M x 36 | None | None |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
32KB | (4) 8K x 8 | None | (1) 8K x 8 |
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 |
512KB | (4) 128K x 8 | None | (1) 32K x 8 |
1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 |
CACHE JUMPER CONFIGURATION | |||||||
Size | JP1 | JP2 | JP3 | JP4 | JP5 | JP14 | JP16 |
32KB | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
64KB | 2 & 3, 4 & 5 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
128KB | 1 & 2, 3 & 4 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
256KB | 2 & 3, 4 & 5 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
512KB | 1 & 2, 3 & 4 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
1MB | 2 & 3, 4 & 5 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION | ||||
Speed | JP8 | JP12 | JP13 | JP17 |
20MHz | Open | Open | Open | Pins 1 & 2 closed |
25MHz | Open | Open | Closed | Pins 1 & 2 closed |
33MHz | Closed | Closed | Closed | Pins 1 & 2 closed |
40MHz | Open | Closed | Closed | Pins 1 & 2 closed |
50iMHz | Open | Open | Closed | Pins 1 & 2 closed |
50MHz | Closed | Open | Open | Pins 2 & 3 closed |
66iMHz | Closed | Closed | Closed | Pins 1 & 2 closed |
75iMHz | Open | Open | Closed | Pins 1 & 2 closed |
83iMHz | Closed | Closed | Closed | Pins 1 & 2 closed |
100iMHz | Closed | Closed | Closed | Pins 1 & 2 closed |
CPU TYPE SELECTION | |||
Type | JP10 | JP11 | JP18 |
CX486S | 2 & 3 | 1 & 2 | Open |
80486SX | 1 & 2 | 2 & 3 | Open |
SL80486SX | 1 & 2 | 2 & 3 | Open |
80486SX2 | 1 & 2 | 2 & 3 | Open |
SL80486SX2 | 1 & 2 | 2 & 3 | Open |
UMC U5S | 2 & 3 | 1 & 2 | 1 & 2, 3 & 4, 5 & 6 |
CX486DX | 2 & 3 | 1 & 2 | Open |
AM486DX | 1 & 2 | 2 & 3 | Open |
80486DX | 1 & 2 | 2 & 3 | Open |
SL80486DX | 1 & 2 | 2 & 3 | Open |
CX486DX2 | 2 & 3 | 1 & 2 | Open |
CX486DX2-V | 2 & 3 | 1 & 2 | Open |
AM486DX2 | 1 & 2 | 2 & 3 | Open |
80486DX2 | 1 & 2 | 2 & 3 | Open |
SL80486DX2 | 1 & 2 | 2 & 3 | Open |
AM486DX4 | 1 & 2 | 2 & 3 | Open |
80486DX4 | 1 & 2 | 2 & 3 | Open |
P24D | 1 & 2 | 1 & 2 | Open |
P24T | 1 & 2 | 1 & 2 | Open |
CX M9 | 2 & 3 | 1 & 2 | Open |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON’T) | ||
Type | JP20 | JP25 |
CX486S | Open | Open |
80486SX | Open | Open |
SL80486SX | Open | 1 & 2, 3 & 4, 9 & 10, 11 & 12 |
80486SX2 | Open | Open |
SL80486SX2 | Open | 1 & 2, 3 & 4, 9 & 10, 11 & 12 |
UMC U5S | Open | Open |
CX486DX | 1 & 2 | Open |
AM486DX | 1 & 2 | Open |
80486DX | 1 & 2 | Open |
SL80486DX | 1 & 2 | 1 & 2, 3 & 4, 9 & 10, 11 & 12 |
CX486DX2 | 1 & 2 | Open |
CX486DX2-V | 1 & 2 | Open |
AM486DX2 | 1 & 2 | Open |
80486DX2 | 1 & 2 | Open |
SL80486DX2 | 1 & 2 | 1 & 2, 3 & 4, 9 & 10, 11 & 12 |
AM486DX4 | 1 & 2 | Open |
80486DX4 | 1 & 2 | 1 & 2, 3 & 4, 9 & 10, 11 & 12 |
P24D | 1 & 2 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12, 13 & 14, 15 & 16 |
P24T | 1 & 2 | 1 & 2, 3 & 4, 9 & 10 |
CX M9 | 1 & 2 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12, 15 & 16 |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON’T) | ||
Type | JP37 | JP41 |
CX486S | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 11 & 12 | 2 & 3 |
80486SX | Open | 2 & 3 |
SL80486SX | Open | 2 & 3 |
80486SX2 | Open | 2 & 3 |
SL80486SX2 | Open | 2 & 3 |
UMC U5S | Open | 2 & 3 |
CX486DX | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 | 1 & 2, 3 & 4 |
AM486DX | Open | 1 & 2, 3 & 4 |
80486DX | Open | 1 & 2, 3 & 4 |
SL80486DX | Open | 1 & 2, 3 & 4 |
CX486DX2 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 | 1 & 2, 3 & 4 |
CX486DX2-V | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 | 1 & 2, 3 & 4 |
AM486DX2 | Open | 1 & 2, 3 & 4 |
80486DX2 | Open | 1 & 2, 3 & 4 |
SL80486DX2 | Open | 1 & 2, 3 & 4 |
CPU TYPE SELECTION (CON’T) | ||
Type | JP37 | JP41 |
AM486DX4 | Open | 1 & 2, 3 & 4 |
80486DX4 | Open | 1 & 2, 3 & 4 |
P24D | Open | 1 & 2, 3 & 4 |
P24T | Open | 1 & 2, 3 & 4 |
CX M9 | 5 & 6 | 1 & 2, 3 & 4 |
Note: Pins designated should be in the closed position. |
CPU MULTIPLIER SELECTION (DX4 & CX M9 ONLY) | |
Multiplier | JP21 |
2x | Pins 2 & 3 closed |
2.5x | Pins 1 & 2 closed |
3x | Open |
CPU VOLTAGE SELECTION | ||
Voltage | JP26 | JP32 |
3.15v | Pins 1 & 2 closed | Pins 1 & 2, 4 & 5, 7 & 8 closed |
3.3v | Pins 3 & 4 closed | Pins 1 & 2, 4 & 5, 7 & 8 closed |
3.45v | Pins 5 & 6 closed | Pins 1 & 2, 4 & 5, 7 & 8 closed |
3.6v | Pins 7 & 8 closed | Pins 1 & 2, 4 & 5, 7 & 8 closed |
4v | Pins 9 & 10 closed | Pins 1 & 2, 4 & 5, 7 & 8 closed |
5v | N/A | Pins 2 & 3, 5 & 6, 8 & 9 closed |
VL BUS WAIT STATE SELECTION | |
Setting | JP44 |
0 | Pins 1 & 2 closed |
1 | Pins 2 & 3 closed |
VL BUS SPEED SELECTION | |
Speed | JP47 |
<= 33MHz | Pins 1 & 2 closed |
>33 MHz | Pins 2 & 3 closed |