ECS P5SD-B Plus Manual page 12

Core Voltage Pins 1-2
2.8V Short
2.7V Open
2.6V Open
2.5V Open
2.4V Open
2.3V Open
2.2V Open
2.1V Open
2.0V Open
Set the Processor Clock Speed: JP1
The processor clock speed is determined by the product of the system bus speed (CPU
CLK set by JP6-JP12) with the multiplier value set by the six pin jumper JP1.
Bus Multiplier Pins 1-2
x1.5/x3.5 Open
x2.0 Short
x2.5 Short
x3.0 Open
x4.0 Close
x4.5 Close
x5.0 Open
x5.5 Open
Set for single voltage CPU or dual voltage CPU: JV_L1
Some CPUs require dual voltages and some CPUs require single voltages. The table
below shows the jumper setting with examples of the CPUs.
Function
Single voltage CPU
Dual voltage CPU
Set CPU I/O Voltage: JP13
Use this 4-pin jumper to set the CPU I/O voltage to either 3.3V or 3.52V.
Voltage Setting
3.52 Volts
3.3 Volts
9
Pins 3-4 Pins 5-6
Open Open
Short Short
Short Short
Short Open
Short Open
Open Short
Open Short
Open Open
Open Open
Pins 3-4 Pins 5-6
Open Open
Open Open
Short Open
Short Open
Open Close
Close Close
Close Close
Open Close
Jumper Cap Example CPUs
Open Pins 1-2 Intel P54C, IDT C6, AMD K5, IBM/Cyrix
6x86
Short pins 1-2 Intel MMX, AMD K6/K6-2, IBM/Cyrix
6x86L/6x86MII
Jumper Cap
Short 1-2
Short 3-4
Pins 7-8
Open
Short
Open
Short
Open
Short
Open
Short
Open
JP1
1-2
3-4
Default
x3.0
5-6
JP13
4 3
2 1
Default
3.3V