Memory Installations
The following table shows several possible memory combinations. The P5GX-LG system board supports from 2-128MB of 72-pin EDO memory, 70ns or faster. Memory may be installed in any combination as long as SIMM memory modules must be installed in pairs, and the pairs have the same specifications, including parity/non-parity, access speed, and physical configuration. SIMMs must have a "low profile" to clear the card slots. If installing only two SIMMs, the memory must be installed in sockets SIMM1/SIMM2.

Connector

Function

Description

J1

Floppy Drive Controller

34-Pin connector connects to 2-device cable; End device is A:, middle device is B:

J3

IR port header

Connects to optional infrared module cable

J4

Primary IDE

40-pin connector connects to supplied 2-device cable; Primary Master / Slave devices via supplied cable

J5

External PS/2 Keyboard Port

Connects to PS/2 Keyboard (or AT keyboard with adapter)

J6

Secondary IDE

40-pin connector connects to supplied 2-device cable; Secondary Master / Slave devices via supplied cable

J7

External PS/2 Mouse Port

Connects to PS/2 Mouse or other pointing device

J8

12-pin AT Power Conenctor

Connects to power supply leads P8 and P9

J9

Serial port #1

db-9 male serial connector, can be configured COM1, COM3, or disabled

J11

Case features connector

Connections to front panel case features:

• Pins 1-2: "Power ON" LED
• Pins 3-4: Suspend LED
• Pins 5-6: Hard Disk Access LED
• Pins 7-8: Suspend Switch
• Pins 9-10: Reset Switch

J12

Serial port #2

db-9 male serial connector, can be configured COM2, COM4, or disabled

J13

Case Speaker

Connects to case-mounted speaker

J14

External Parallel Port

db-25 female parallel port connector, can be configured to in various modes via CMOS Setup

J15

CD Audio In

Connects to CD-Audio Out connector on CD ROM drive

J16

Audio Header

Connects to external sound card connections, including Joystick, Microphone in, Line in, Line out, and Speakers. Audio card does not support full midi functions

P1

External VGA port

Standard hd-15 female connector; VGA video out

SLOT1

Riser Card Slot

Slot for expansion slot riser card with ISA and PCI expansion slots