Presario 4700 Systemboard

Internal Connectors	Jumpers
External Connectors	Riser

Connectors

System Board Internal Connectors
Function	Description	Designator
Button/Light Board	20-Pin Header	J9
Cache Socket	160-Pin DIMM	J13
Clock Multiplier	6-Pin Header	P9
Clock Speed	5-Pin Header	P8
CMOS	2-Pin Header	P11
Diskette Drive	34-Pin Header	J4
Feature Connector	26-Pin Header	J27
Internal Line In	4-Pin Header, Key 2	P6
Internal Line In (CD Drive)	4-Pin Header, Key 2	P5
LPB/MPEG	34-Pin Header	J17
MPEG	10-Pin Header	J20
MPEG Audio	4-Pin Header, Key 2	P3
Power Supply	12-Pin ATPWR Header	P1
Primary IDE Drive (Hard Drive)	40-Pin Header, Key 20	J1
Replacement Battery	4-Pin Header, Key 2	P7
Riser Board	PCI/ISA Slot	J15
Secondary IDE Drive (CD Drive)	40-Pin Header, Key 20	J3
Serial port connector	9-Pin Header	J8
SIMM Sockets	72-Pin SIMM	J26, J24, J23, J22
Video Memory connector	30-Pin Small Header	J19, J16
Wavetable connector	26-Pin Header, Key 7	J7

Configuration Jumpers
Jumper	Pins	Function
P7		Replacement Battery Connector
P8 Bus Speed Select	1-2	50 MHz CPU External Bus Frequency
	2-3	60 MHz CPU External Bus Frequency
	3-4	66 MHz CPU External Bus Frequency
	4-5	55 MHz CPU External Bus Frequency (Reserved)
P9 CPU Clock	A1-A2 B1-B2	× 1.5
	A2-A3 B1-B2	× 2.0
	A2-A3 B2-B3	× 2.5
	A1-A2 B2-B3	× 3.0
P11 CMOS Clear	1-2* Open	Secure CMOS Power Remove jumper for 10 seconds and reinstall to clear CMOS
*Default

Riser Board Connectors Minitower