CHICONY, INC.
CH-471A
|
Processor |
CX486S/80486SX/SL80486SX/CX486S2/CX486DX/AM486DXL/80486DX/ SL80486DX/ AM486DXL2/80486DX2/SL80486DX2/P24D/80486DX4/Pentium Overdrive |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
SIS |
|
Max. Onboard DRAM |
128MB |
|
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 connector |
|
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 |
SL1 - SL3 |
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
» |
CPU clock down control select STPCLK |
JP6 |
pins 1 & 2 closed |
|
|
CPU clock down control select SMOUT0 |
JP6 |
pins 2 & 3 closed |
|
» |
CMOS memory normal operation |
JP7 |
pins 1 & 2 closed |
|
|
CMOS memory clear |
JP7 |
pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP17 |
N/A |
|
|
CPU type select all CPU types |
JP22 |
Open |
|
|
CPU type select CX486S2 only |
JP22 |
Closed |
|
» |
Factory configured - do not alter |
JP37 |
N/A |
|
» |
Address strobe type select normal |
JP40 |
pins 1 & 2 closed |
|
|
Address strobe type select delayed |
JP40 |
pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP45 |
N/A |
|
Note: The location of JP40 is unidentified. |
|||
|
DRAM CONFIGURATION |
||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
2MB |
(1) 512K x 36 |
NONE |
NONE |
NONE |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 512K x 36 |
NONE |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
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 |
|
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) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
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 |
|
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 |
|
DRAM CONFIGURATION (CON'T) |
||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
36MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
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 |
|
65MB |
(1) 256K x 36 |
(1) 16M 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 TYPE CONFIGURATION |
|||||
|
Type |
JP10 |
JP11 |
JP20 |
JP21 |
JP23 |
|
CX486S |
2 & 3 |
1 & 2 |
2 & 3 |
Open |
Open |
|
80486SX |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
Open |
|
SL80486SX |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
CX486DX |
2 & 3 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
AM486DXL |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
80486DX |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
SL80486DX |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
1 & 2 |
|
CX486DX2 |
2 & 3 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
AM486DXL2 |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
SL80486DX2 |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
1 & 2 |
|
P24D |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
2 & 3 |
|
80486DX4 |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
1 & 2 |
|
P24T |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
Note: Pins designated should be in the closed position. |
|||||
|
CPU TYPE CONFIGURATION |
|||||
|
Type |
JP24 |
JP25 |
JP26 |
JP27 |
JP28 |
|
CX486S |
2 & 3 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
Open |
|
80486SX |
Open |
Open |
Open |
Open |
Open |
|
SL80486SX |
4 & 5 |
3 & 4 |
2 & 3 |
Open |
Open |
|
CX486DX |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
AM486DXL |
Open |
Open |
Open |
Open |
Open |
|
80486DX |
Open |
Open |
Open |
Open |
Open |
|
SL80486DX |
4 & 5 |
3 & 4 |
2 & 3 |
Open |
Open |
|
CX486DX2 |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
AM486DXL2 |
Open |
Open |
Open |
Open |
Open |
|
SL80486DX2 |
4 & 5 |
3 & 4 |
2 & 3 |
Open |
Open |
|
P24D |
4 & 5 |
1 & 2, 3 & 4 |
2 & 3 |
Closed |
Closed |
|
80486DX4 |
4 & 5 |
3 & 4 |
2 & 3 |
Open |
Open |
|
P24T |
1 & 2 |
3 & 4 |
2 & 3 |
Open |
Open |
|
Note: Pins designated should be in the closed position. |
|||||
|
CPU TYPE CONFIGURATION |
|||||
|
Type |
JP29 |
JP30 |
JP31 |
JP33 |
JP36 |
|
CX486S |
2 & 3 |
2 & 3 |
Open |
2 & 3 |
1 & 2 |
|
80486SX |
2 & 3 |
Open |
Open |
Open |
Open |
|
SL80486SX |
2 & 3 |
Open |
Open |
Open |
1 & 2 |
|
CX486DX |
2 & 3 |
2 & 3 |
3 & 4 |
2 & 3 |
1 & 2 |
|
AM486DXL |
2 & 3 |
3 & 4 |
1 & 2 |
Open |
2 & 3 |
|
80486DX |
2 & 3 |
Open |
3 & 4 |
Open |
Open |
|
SL80486DX |
2 & 3 |
Open |
3 & 4 |
Open |
1 & 2 |
|
CX486DX2 |
2 & 3 |
2 & 3 |
3 & 4 |
2 & 3 |
1 & 2 |
|
AM486DXL2 |
2 & 3 |
3 & 4 |
1 & 2 |
Open |
2 & 3 |
|
SL80486DX2 |
2 & 3 |
Open |
3 & 4 |
Open |
1 & 2 |
|
P24D |
1 & 2 |
Open |
3 & 4 |
Open |
1 & 2 |
|
80486DX4 |
2 & 3 |
Open |
3 & 4 |
Open |
1 & 2 |
|
P24T |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. |
|||||
|
CPU SPEED CONFIGURATION |
|||
|
Speed |
JP8 |
JP12 |
JP13 |
|
20MHz |
Open |
Open |
Open |
|
25MHz |
Open |
Open |
Closed |
|
33MHz |
Closed |
Closed |
Closed |
|
40MHz |
Open |
Closed |
Closed |
|
50iMHz |
Open |
Open |
Closed |
|
50MHz |
Closed |
Open |
Open |
|
66iMHz |
Closed |
Closed |
Closed |
|
75iMHz |
Open |
Open |
Closed |
|
100iMHz |
Closed |
Closed |
Closed |
|
CPU VOLTAGE CONFIGURATION |
|||
|
Voltage |
JP32 |
JP34 |
JP35 |
|
3.3v |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
5v |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
VESA WAIT STATE CONFIGURATION |
|
|
Wait states |
JP44 |
|
0 wait states |
pins 1 & 2 closed |
|
1 wait state |
pins 2 & 3 closed |
|
BUS SPEED CONFIGURATION |
|
|
CPU speed |
JP47 |
|
<= 33MHz |
pins 1 & 2 closed |
|
> 33MHz |
pins 2 & 3 closed |