SOYO P54C, P55C manual Appendix B Quick Installation Guide, Additional jumper settings

Appendix B : Quick Installation Guide

This leaflet is meant to help you set the jumpers for your 5EAS motherboard in order to boot the motherboard. Please refer to Diagram 1 for the location of the relevant jumpers:

Diagram 1: Board layout

Table 1 : Jumper settings for CPU voltage and frequency

Voltage Settings: JP32

(JP30, JP31)

CPU frequency settings: JP10, 11, 12 / JP13, 14

voltage

1-2

3-4

5-6

7-8

JP30

JP31

frequency:

JP10

JP11

JP12

multiplier

JP13

JP14

single 3.52V

close

close

close

close

open

close

50 Mhz

2-3

2-3

2-3

1.5 / 3.5x

open

open

single 3.3V

close

close

open

close

open

close

55

Mhz

2-3

2-3

1-2

2.0x

close

open

dual

3.2V

close

close

open

open

close

open

60

Mhz

1-2

2-3

2-3

2.5x

close

close

dual

2.9V

close

open

open

close

close

open

66

Mhz

2-3

1-2

2-3

3.0x

open

close

dual

2.8V

close

open

open

open

close

open

75

Mhz

1-2

2-3

1-2

Table 2: Additional jumper settings

CMOS clear: J5		PCI bus synchronous / asynchronous:		Sleep Switch connector: J23
		J16
Retain CMOS	1-2	PCI bus:	JP16	connect a switch to this jumper, Any
data (default)		synchronous	1-2	IRQ will wake up the system.
Clear CMOS data		asynchronous	2-3	Reset: J19	HDD Led: J24
	2-3	note: Set JP16 to 2-3 when 75 Mhz bus		Connect the reset	connect the HDD
		clock is selected, for 50 and 55 set 1-2.		button to J19	led to J24
J100: Cyrix CPU linear burst enable				Speaker: J18	Powerled: J17
Close this jumper when using a Cyrix CPU. Set the ‘linear burst’				connect the speaker	connect keylock
item in the BIOS under ‘chipset features’ to enabled as well when				to J18	& power led to
setting this jumper. (default setting is disabled)					J17