ADI's mainboard TK8881 FA20
3/4 BABY size 220x180 mm.
CONNECTORS
CN1 PARALLEL PORT
CN2 FDD CONNECTOR
CN3 ÑÎÌ 2/4
CN4 ÑÎÌ 1/3
CN5 PRIMARY IDE CONNECTOR
CN6 SECONDARY IDE CONNECTOR
J2 BATTERY CONNECTOR
IF YOU ARE USING EXTERNAL BATTERY
PIN1 +3.6V
PIN4 GROUND
IF YOU ARE USING INTERNAL Li-BATTERY
1-2 NORMAL
3-4 RTC CLEAN
J10 PMU SWITCH
J29 HDD LED
J30 TURBO SWITCH
J31 RESET SWITCH
J32 TURBO LED
J33 SPEAKER CONNECTOR
J34 KEY LOCK CONNECTOR
UMC 8880 486 PCI M/B JUMPER SETTING
|
|
J12 |
J13 |
J14 |
J15 |
J16 |
J17 |
J18 |
|
486DX/DX2 |
OPEN |
1-2, 3-4 |
OPEN |
3-4 |
1-2 |
OPEN |
OPEN |
|
486SX |
OPEN |
2-3 |
OPEN |
OPEN |
1-2 |
OPEN |
OPEN |
|
P24T |
2-3, 4-5 |
1-2, 3-4 |
1-2 |
2-3 |
3-4, 5-6 |
1-2 |
2-3 |
|
CX486S |
1-2, 3-4 |
2-3 |
2-3 |
OPEN |
3-4 |
2-3 |
1-2 |
|
CX486DX/DX4 |
1-2, 3-4 |
1-2, 3-4 |
2-3 |
3-4 |
3-4 |
2-3 |
1-2 |
|
AMD486DXLT |
OPEN |
1-2, 3-4 |
3-4 |
1-2, 3-4 |
1-2 |
OPEN |
OPEN |
|
UMC466SX |
OPEN |
2-3 |
3-4 |
1-2, 3-4 |
1-2 |
OPEN |
OPEN |
|
UMC486DX |
2-3, 4-5 |
1-2, 3-4 |
OPEN |
3-4 |
3-4 |
OPEN |
OPEN |
|
SL SX |
2-3, 4-5 |
2-3 |
OPEN |
OPEN |
3-4 |
OPEN |
OPEN |
|
AMD INTEL SL DX/DX2 /DX4 |
2-3, 4-5 |
1-2, 3-4 |
OPEN |
3-4 |
3-4 |
OPEN |
OPEN |
|
P24D |
2-3, 4-5 |
1-2, 3-4 |
OPEN |
3-4 |
3-4 |
OPEN |
OPEN |
|
CX M1SC (5Õ86) |
2-3, 4-5 |
1-2, 3-4 |
OPEN |
3-4 |
3-4 |
OPEN |
OPEN |
|
AMD 5Õ86-133 |
2-3, 4-5 |
1-2, 3-4 |
OPEN |
3-4 |
3-4 |
OPEN |
OPEN |
|
|
J20 |
J23 |
J24 |
J25 |
J26 |
J27 |
JUMPWIRE |
|
486DX/DX2 |
OPEN |
OPEN |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
486SX |
OPEN |
OPEN |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
Ð24Ò |
1-2 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
CX486S |
2-3 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
CX486DX/DX4 |
2-3 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
AMD486DXLT |
OPEN |
2-3 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
UMC486SX |
OPEN |
2-3 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
UMC486DX |
1-2 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
SL SX |
1-2 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
AMD INTEL SL DX/DX2 /DX4 |
1-2 |
1-2 |
OPEN |
OPEN |
OPEN |
OPEN |
|
|
P24D |
1-2 |
1-2 |
1-2 |
1-2 |
1-2 |
OPEN |
|
|
CX M1SC (5Õ86) |
1-2 |
1-2 |
1-2 |
1-2 |
1-2 |
1-2 |
|
|
AMD 5Õ86-133 |
1-2 |
1-2 |
1-2 |
1-2 |
1-2 |
OPEN |
J19-PIN1 & J14-PIN3 CLOSE |
J19 CYRIX CPU CLOCK MODE
|
1X |
1-2 |
|
2X |
2-3 |
|
OTHER CPU |
OPEN |
J21 INTEL CPU CLOCK MODE
|
2.5X |
1-2 |
|
2X |
2-3 |
|
3X,OTHER CPU |
OPEN |
J22 INTEL P24D
|
WRITE THROUGH |
1-2 |
|
WRITE BACK |
2-3 |
|
OTHER CPU(DX4-100) |
OPEN |
J6,J7 CPU TYPE
|
|
J6 |
J7 |
|
CYRIX 5Õ86, AMD 5Õ86, INTEL |
1-2 |
1-2 |
|
CYRIX |
2-3 |
1-2 |
|
UMC |
1-2 |
2-3 |
J1 CACHE SIZE
|
|
J1 |
U4 (TAG) |
U5,U6, U7,U8 (DATA) |
|
128KB |
OPEN |
32K*8 |
32K*8 |
|
256KB |
1-2 |
32K*8 |
64K*8 |
|
512KB |
1-2, 3-4 |
32K*8 |
128K*8 |
J28 CPU CLOCK
|
|
1-2 |
3-4 |
5-6 |
|
25MHz |
ON |
OFF |
OFF |
|
33MHz |
ON |
ON |
ON |
|
40MHz |
ON |
ON |
OFF |
|
50MHz |
OFF |
OFF |
ON |
J8, J9, J11 CPU VOLTAGE SELECTION
|
|
J8 |
J9 |
J11 |
|
|
3.3 V |
2-3 |
2-3 |
1-2 |
|
|
3.45 V |
2-3 |
2-3 |
3-4 |
|
|
3.6 V |
2-3 |
2-3 |
5-6 |
|
|
4.0 V |
2-3 |
2-3 |
7-8 |
|
|
5.0 V |
1-2 |
1-2 |
1-2 |
|
J3, J4 PARALLEL PORT DMA CHANNEL SELECTION
|
|
J3 |
J4 |
|
DMA 1 |
1-2 |
1-2 |
|
DMA 3 |
2-3 |
2-3 |
J5 FLASH ROM VOLTAGE SELECTION
|
1-2 |
12V FLASH ROM |
|
2-3 |
5V FLASH ROM |
|
OPEN |
EPROM |