MB-15XXTIC
60/66 mhz Pentium Main Board

MAINBOARD LAYOUT

When Using Pentium 60 , Use an Oscillator of 60 Mhz
When Using Pentium 66 , Use an Oscillator of 66 Mhz

J12 : Cache Operation Mode Select

open : Write Back
Closed : Write Trough

J13 : Pipeline/Non-Pipeline Select

open : Non Pipeline
closed : Pipeline

J 41 : L2 Cache Size Settings
1-2 closed : 256 Kb Cache
2-3 closed : Invalid

J 111 : Cmos Discharge
open : normal operation
closed : Clear Cmos, afterwards put on open again, else the system won't boot up!

PCI SLOT IRQ SELECT

Jp 125 : PCI Slot No. PCI 11 Irq Select
1-2 Closed : Irq 10
2-3 Closed : Irq 12

JP 126 : PCI Slot No. PCI 12 Irq Select
1-2 Closed : Irq 11
2-3 Closed : Irq 15

JP 127 : PCI Slot No. PCI 13 Irq Select
1-2 Closed : Irq 15
2-3 Closed : Irq 9

JP 126 : PCI Slot No. PCI 14 Irq Select
1-2 Closed : Irq 9
2-3 Closed : Irq 14 (For IDE)

J141 : Display Type Select
open : Mono
closed : Color

CONNECTORS

J132 : SPEAKER
1 : Speaker Data
2 : NC
3 : Ground
4 : Vcc (+5V)

JP134 : H/W RESET CONNNECTOR
1 : Reset Control
2 : Ground

J142 : Key-Lock & Power LED Connector
1 : Power LEd +
2 : NC
3 : GND
4 : Key Lock
5 : GND

J144 : TURBO LED CONNECTOR
1 : Turbo Led +
2 : Turbo Led -

J145 : TURBO SWITCH (NOT SUPPORTED!)
1 : Turbo Control
2 : Ground