CONCORD OFFICE AUTOMATION INDUSTRIAL (HK) LTD.
COA-921
Processor |
80486SX/SL80486SX/UMC486DX/AM486DX/80486DX/SL80486DX/ CX486DX2/IBM486DX2/TI486DX2/UMC486DX2/AM486DX2/ 80486DX2/SL80486DX2/CX486DX4/IBM486DX4/AM486DX4/ (SL)AM486DX4/SL80486DX4/CXP24D/P24D/P24T/CX5X86 |
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)/ 120(internal)MHz |
Chip Set |
UMC |
Video Chip Set |
None |
Maximum Onboard Memory |
256MB |
Maximum Video Memory |
None |
Cache |
64/128/256/512KB |
BIOS |
Unidentified |
Dimensions |
254mm x 218mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS |
|||
Purpose |
Location |
Purpose |
Location |
Floppy drive interface |
CN1 |
IDE interface LED |
J29 |
Parallel port |
CN2 |
Turbo switch |
J30 |
Serial port |
CN3 |
Reset switch |
J31 |
Serial port |
CN4 |
Turbo LED |
J32 |
IDE interface 2 |
CN5 |
Speaker |
J33 |
IDE interface 1 |
CN6 |
Power LED & keylock |
J34 |
External battery |
J2 |
32-bit PCI slots |
PC1 - PC3 |
Green PC connector |
J10 |
|
|
USER CONFIGURABLE SETTINGS |
|||
Function |
Label |
Position |
|
Factory configured - do not alter |
J1 |
Unidentified |
|
|
Battery type select external |
J2 |
Closed |
|
Battery type select internal |
J2 |
Pins 2 & 3 closed |
|
CMOS memory clear |
J2 |
Pins 3 & 4 closed |
Factory configured - do not alter |
J5 |
Unidentified |
DRAM CONFIGURATION |
||
Size |
Bank 0 |
Bank 1 |
1MB |
(1) 256K x 36 |
None |
4MB |
(1) 1M x 36 |
None |
8MB |
(1) 2M x 36 |
None |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
16MB |
(1) 4M x 36 |
None |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
32MB |
(1) 8M x 36 |
None |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
36MB |
(1) 8M x 36 |
(1) 1M x 36 |
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
64MB |
(1) 16M x 36 |
None |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
68MB |
(1) 16M x 36 |
(1) 1M x 36 |
72MB |
(1) 16M x 36 |
(1) 2M x 36 |
80MB |
(1) 16M x 36 |
(1) 4M x 36 |
96MB |
(1) 16M x 36 |
(1) 8M x 36 |
128MB |
(1) 32M x 36 |
None |
128MB |
(1) 16M x 36 |
(1) 16M x 36 |
DRAM CONFIGURATION (CON'T) |
||
Size |
Bank 0 |
Bank 1 |
132MB |
(1) 32M x 36 |
(1) 1M x 36 |
136MB |
(1) 32M x 36 |
(1) 2M x 36 |
144MB |
(1) 32M x 36 |
(1) 4M x 36 |
160MB |
(1) 32M x 36 |
(1) 8M x 36 |
192MB |
(1) 32M x 36 |
(1) 16M x 36 |
256MB |
(1) 64M x 36 |
None |
256MB |
(1) 32M x 36 |
(1) 32M x 36 |
CACHE CONFIGURATION |
||
Size |
Bank 0 |
TAG |
64KB |
(4) 16K x 8 |
Unidentified |
128KB |
(4) 32K x 8 |
Unidentified |
256KB |
(4) 64K x 8 |
Unidentified |
512KB |
(4) 128K x 8 |
Unidentified |
CPU SPEED SELECTION |
|
Speed |
J28 |
25MHz |
Pins 1 & 2 closed |
33MHz |
Pins 1 & 2, 3 & 4, 5 & 6 closed |
40MHz |
Pins 1 & 2, 3 & 4 closed |
50iMHz |
Pins 1 & 2 closed |
50MHz |
Pins 5 & 6 closed |
66iMHz |
Pins 1 & 2, 3 & 4, 5 & 6 closed |
75iMHz |
Pins 1 & 2 closed |
80iMHz |
Pins 1 & 2, 3 & 4 closed |
100iMHz |
Pins 1 & 2, 3 & 4, 5 & 6 closed |
120iMHz |
Pins 1 & 2, 3 & 4 closed |
CPU TYPE SELECTION |
||||||
Type |
J6 |
J7 |
J12 |
J13 |
J14 |
J15 |
80486SX |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
Open |
Open |
SL80486SX |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
2 & 3 |
Open |
Open |
UMC486DX |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
AM486DX |
1 & 2 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
3 & 4 |
80486DX |
1 & 2 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
3 & 4 |
SL80486DX |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
CX486DX2 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
IBM486DX2 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
TI486DX2 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
UMC486DX2 |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
AM486DX2 |
1 & 2 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
3 & 4 |
80486DX2 |
1 & 2 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
3 & 4 |
SL80486DX2 |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
CX486DX4 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
IBM486DX4 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
AM486DX4 |
1 & 2 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
3 & 4 |
(SL)AM486DX4 |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
SL80486DX4 |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
CXP24D |
2 & 3 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
P24D |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
P24T |
1 & 2 |
1 & 2 |
2 & 3, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3 |
CS5X86 |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
2 & 3, 4 & 5 |
Open |
3 & 4 |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON'T) |
||||
Type |
J16 |
J17 |
J18 |
J19 |
80486SX |
1 & 2 |
Open |
Open |
Open |
SL80486SX |
3 & 4 |
Open |
Open |
Open |
UMC486DX |
3 & 4 |
Open |
Open |
Open |
AM486DX |
1 & 2 |
Open |
Open |
Open |
80486DX |
1 & 2 |
Open |
Open |
Open |
SL80486DX |
3 & 4 |
Open |
Open |
Open |
CX486DX2 |
3 & 4 |
2 & 3 |
1 & 2 |
2 & 3 |
IBM486DX2 |
3 & 4 |
2 & 3 |
1 & 2 |
2 & 3 |
TI486DX2 |
3 & 4 |
2 & 3 |
1 & 2 |
2 & 3 |
UMC486DX2 |
3 & 4 |
Open |
Open |
Open |
AM486DX2 |
1 & 2 |
Open |
Open |
Open |
80486DX2 |
1 & 2 |
Open |
Open |
Open |
SL80486DX2 |
3 & 4 |
Open |
Open |
Open |
CX486DX4 |
3 & 4 |
2 & 3 |
1 & 2 |
Open |
IBM486DX4 |
3 & 4 |
2 & 3 |
1 & 2 |
Open |
AM486DX4 |
1 & 2 |
Open |
Open |
Open |
(SL)AM486DX4 |
3 & 4 |
Open |
Open |
Open |
SL80486DX4 |
3 & 4 |
Open |
Open |
Open |
CXP24D |
3 & 4 |
Open |
Open |
Open |
P24D |
3 & 4 |
Open |
Open |
Open |
P24T |
3 & 4, 5 & 6 |
1 & 2 |
2 & 3 |
Open |
CS5X86 |
3 & 4 |
Open |
Open |
Open |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON'T) |
|||||
Type |
J20 |
J21 |
J22 |
J23 |
J24 |
80486SX |
Open |
Open |
Open |
Open |
Open |
SL80486SX |
1 & 2 |
Open |
Open |
1 & 2 |
Open |
UMC486DX |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
AM486DX |
Open |
Open |
Open |
Open |
Open |
80486DX |
Open |
Open |
Open |
Open |
Open |
SL80486DX |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
CX486DX2 |
2 & 3 |
Open |
Open |
1 & 2 |
Open |
IBM486DX2 |
2 & 3 |
Open |
Open |
1 & 2 |
Open |
TI486DX2 |
2 & 3 |
Open |
Open |
1 & 2 |
Open |
UMC486DX2 |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
AM486DX2 |
Open |
Open |
Open |
Open |
Open |
80486DX2 |
Open |
Open |
Open |
Open |
Open |
SL80486DX2 |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
CX486DX4 |
2 & 3 |
Open |
Open |
1 & 2 |
Open |
IBM486DX4 |
2 & 3 |
Open |
Open |
1 & 2 |
Open |
AM486DX4 |
Open |
Open |
Open |
Open |
Open |
(SL)AM486DX4 |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
Closed |
SL80486DX4 |
1 & 2 |
Open |
Open |
1 & 2 |
Open |
CXP24D |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
Closed |
P24D |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
P24T |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
CS5X86 |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON'T) |
||||
Type |
J25 |
J26 |
J27 |
J36 |
80486SX |
Open |
Open |
Open |
Closed |
SL80486SX |
Open |
Open |
Open |
Open |
UMC486DX |
Open |
Open |
Open |
Open |
AM486DX |
Open |
Open |
Open |
Closed |
80486DX |
Open |
Open |
Open |
Closed |
SL80486DX |
Open |
Open |
Open |
Open |
CX486DX2 |
Open |
Open |
Open |
Open |
IBM486DX2 |
Open |
Open |
Open |
Open |
TI486DX2 |
Open |
Open |
Open |
Open |
UMC486DX2 |
Open |
Open |
Open |
Open |
AM486DX2 |
Open |
Open |
Open |
Closed |
80486DX2 |
Open |
Open |
Open |
Closed |
SL80486DX2 |
Open |
Open |
Open |
Open |
CX486DX4 |
Open |
Open |
Closed |
Open |
IBM486DX4 |
Open |
Open |
Closed |
Open |
AM486DX4 |
Open |
Open |
Open |
Closed |
(SL)AM486DX4 |
Closed |
Closed |
Open |
Open |
SL80486DX4 |
Open |
Open |
Open |
Open |
CXP24D |
Closed |
Closed |
Closed |
Open |
P24D |
Closed |
Closed |
Open |
Open |
P24T |
Open |
Open |
Open |
Open |
CS5X86 |
Closed |
Closed |
Closed |
Open |
CPU VOLTAGE SELECTION |
||||
Voltage |
J8 |
J9 |
J11 |
J35 |
3.3v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Closed |
Pins 2 & 3 closed |
4v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Open |
Pins 2 & 3 closed |
5v |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
Pins 1 & 2 closed |
DMA CHANNEL SELECTION |
||
Channel |
J3 |
J4 |
1 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
3 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |