FREE COMPUTER TECHNOLOGY, INC.
486F55
|
Processor |
CX486S/AM486SX/80486SX/CX486S2/AM486SX2/80486SX2/ ODP487/80487SX/CX486DX/80486DX/CX486DX2/AM486DX2/ (SL)AM486DX2(WB)/(SL)AM486DX2(WT)/80486DX2/AM486DX4/ (SL)AM486DX4(WB)/(SL)AM486DX4(WT)/80486DX4/P24D/P24CT/ P24C(WB)/P24T |
|
Processor Speed |
25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
SIS |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
256MB |
|
Maximum Video Memory |
None |
|
Cache |
128/256/512KB |
|
BIOS |
Award |
|
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 |
|
Serial port |
CN1 |
Turbo switch |
J2 |
|
Serial port |
CN2 |
Green PC connector |
J3 |
|
Parallel port |
CN3 |
Turbo LED |
J4 |
|
Floppy drive interface |
CN4 |
Reset switch |
J5 |
|
IDE interface 2 |
CN5 |
Power LED & keylock |
J6 |
|
IDE interface 1 |
CN6 |
Speaker |
J7 |
|
IDE interface LED |
J1 |
32-bit PCI slots |
PC1 - PC3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
CMOS memory normal operation |
JP2 |
Pins 1 & 2 closed |
|
CMOS clear |
JP2 |
Pins 2 & 3 closed | |
|
BIOS type select EPROM |
JP3 |
Open | |
|
Flash BIOS type select 12v |
JP3 |
Pins 1 & 2, 4 & 5 closed | |
|
Flash BIOS type select 5v |
JP3 |
Pins 2 & 3, 4 & 5 closed | |
|
» |
Parallel port IRQ select IRQ7 |
JP6 |
Pins 1 & 2 closed |
|
Parallel port IRQ select IRQ5 |
JP6 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
None |
(1) 512K x 36 |
None |
(1) 512K x 36 |
|
4MB |
(1) 512K x 36 |
None |
(1) 512K x 36 |
None |
|
4MB |
(1) 512K x 36 |
None |
None |
(1) 512K x 36 |
|
4MB |
None |
(1) 512K x 36 |
None |
(1) 512K x 36 |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
(1) 512K x 36 |
|
4MB |
None |
(1) 512K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
7MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
10MB |
(1) 2M x 36 |
None |
None |
(1) 512K x 36 |
|
10MB |
(1) 512K x 36 |
None |
None |
(1) 2M x 36 |
|
10MB |
None |
(1) 2M x 36 |
None |
(1) 512K x 36 |
|
10MB |
None |
(1) 512K x 36 |
None |
(1) 2M x 36 |
|
10MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
(1) 512K x 36 |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
(1) 2M x 36 |
|
13MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
None |
(1) 2M x 36 |
None |
(1) 2M x 36 |
|
16MB |
(1) 2M x 36 |
None |
(1) 2M x 36 |
None |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
16MB |
(1) 2M x 36 |
None |
None |
(1) 2M x 36 |
|
16MB |
None |
(1) 2M x 36 |
None |
(1) 2M x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
(1) 2M x 36 |
|
16MB |
None |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
19MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
34MB |
(1) 8M x 36 |
None |
None |
(1) 512K x 36 |
|
34MB |
(1) 512K x 36 |
None |
None |
(1) 8M x 36 |
|
34MB |
None |
(1) 8M x 36 |
None |
(1) 512K x 36 |
|
34MB |
None |
(1) 512K x 36 |
None |
(1) 8M x 36 |
|
34MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
(1) 512K x 36 |
|
34MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
(1) 8M x 36 |
|
40MB |
(1) 8M x 36 |
None |
None |
(1) 2M x 36 |
|
40MB |
(1) 2M x 36 |
None |
None |
(1) 8M x 36 |
|
40MB |
None |
(1) 8M x 36 |
None |
(1) 2M x 36 |
|
40MB |
None |
(1) 2M x 36 |
None |
(1) 8M x 36 |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
(1) 2M x 36 |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
(1) 8M x 36 |
|
49MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
None |
(1) 8M x 36 |
None |
|
64MB |
(1) 8M x 36 |
None |
None |
(1) 8M x 36 |
|
64MB |
None |
(1) 8M x 36 |
None |
(1) 8M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
(1) 8M x 36 |
|
64MB |
None |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
67MB |
(1) 16M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
76MB |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
112MB |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
130MB |
(1) 16M x 36 |
(1) 16M x 36 |
None |
(1) 512K x 36 |
|
130MB |
(1) 32M x 36 |
None |
None |
(1) 512K x 36 |
|
130MB |
(1) 512K x 36 |
None |
None |
(1) 32M x 36 |
|
130MB |
None |
(1) 32M x 36 |
None |
(1) 512K x 36 |
|
130MB |
None |
(1) 512K x 36 |
None |
(1) 32M x 36 |
|
130MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
(1) 32M x 36 |
|
136MB |
(1) 16M x 36 |
(1) 16M x 36 |
None |
(1) 2M x 36 |
|
136MB |
(1) 32M x 36 |
None |
None |
(1) 2M x 36 |
|
136MB |
(1) 2M x 36 |
None |
None |
(1) 32M x 36 |
|
136MB |
None |
(1) 32M x 36 |
None |
(1) 2M x 36 |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
136MB |
None |
(1) 2M x 36 |
None |
(1) 32M x 36 |
|
136MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
(1) 32M x 36 |
|
160MB |
(1) 16M x 36 |
(1) 16M x 36 |
None |
(1) 8M x 36 |
|
160MB |
None |
(1) 8M x 36 |
None |
(1) 32M x 36 |
|
160MB |
(1) 32M x 36 |
None |
None |
(1) 8M x 36 |
|
160MB |
None |
(1) 32M x 36 |
None |
(1) 8M x 36 |
|
160MB |
None |
(1) 8M x 36 |
None |
(1) 32M x 36 |
|
160MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
(1) 32M x 36 |
|
193MB |
(1) 256K x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
196MB |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
208MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
256MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
256MB |
(1) 16M x 36 |
(1) 16M x 36 |
None |
(1) 32M x 36 |
|
256MB |
(1) 32M x 36 |
None |
(1) 32M x 36 |
None |
|
256MB |
(1) 32M x 36 |
None |
None |
(1) 32M x 36 |
|
256MB |
None |
(1) 32M x 36 |
None |
(1) 32M x 36 |
|
256MB |
None |
(1) 32M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
None |
(1) 8K/16K/32K x 8 |
|
256KB (A) |
(4) 64K x 8 |
None |
(1) 16K/32K x 8 |
|
256KB (B) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K/32K x 8 |
|
512KB |
(4) 128K x 8 |
None |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP15 |
JP16 |
JP20 |
|
128KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
256KB (A) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
256KB (B) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
512KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU SPEED SELECTION | ||
|
Speed |
JP22 |
JP23 |
|
25MHz |
Open |
Open |
|
33MHz |
Closed |
Closed |
|
40MHz |
Open |
Closed |
|
50iMHz |
Open |
Open |
|
66iMHz |
Closed |
Closed |
|
75iMHz |
Open |
Open |
|
100iMHz |
Closed |
Closed |
|
CPU TYPE SELECTION | ||||
|
Type |
JP8 |
JP9 |
JP10 |
JP11 |
|
CX486S |
Open |
1 & 2, 5 & 6 |
2 & 3, 5 & 6, 7 & 8 |
1 & 2, 4 & 5, 6 & 7 |
|
AM486SX |
Open |
1 & 2, 4 & 5 |
2 & 3, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
80486SX |
Open |
1 & 2, 4 & 5 |
2 & 3, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
CX486S2 |
Open |
1 & 2, 5 & 6 |
2 & 3, 5 & 6, 7 & 8 |
4 & 5, 6 & 7 |
|
AM486SX2 |
Open |
1 & 2, 4 & 5 |
2 & 3, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
80486SX2 |
Open |
1 & 2, 4 & 5 |
2 & 3, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
ODP487 |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
80487SX |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
CX486DX |
Open |
1 & 2, 5 & 6 |
1 & 2, 5 & 6, 7 & 8 |
4 & 5, 6 & 7 |
|
80486DX |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
CX486DX2 |
Open |
1 & 2, 5 & 6 |
1 & 2, 5 & 6, 7 & 8 |
4 & 5, 6 & 7 |
|
AM486DX2 |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
(SL)AM486DX2 (WB) |
2 & 3 |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
(SL)AM486DX2 (WT) |
2 & 3 |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
80486DX2 |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
AM486DX4 |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
(SL)AM486DX4 (WB) |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6 |
|
(SL)AM486DX4 (WT) |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
80486DX4 |
Open |
1 & 2, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
P24D |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
P24CT |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
P24C (WB) |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
P24T |
Open |
2 & 3, 4 & 5 |
1 & 2, 4 & 5, 6 & 7 |
3 & 4, 5 & 6, 7 & 8 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU VOLTAGE SELECTION | |||
|
Voltage |
JP17 |
JP18 |
JP19 |
|
3.3v (Intel/AMD 3v CPU) |
Open |
Open |
Open |
|
3.6v (Cyrix 3v CPU) |
Closed |
Open |
Open |
|
5v |
Open |
Closed |
Closed |
|
DMA CHANNEL SELECTION | |||
|
Channel |
JP4 |
JP5 | |
| » |
1 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
3 |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |