ECS P5GX-M User Manual

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Overview

The P5GX-M mainboard complies with the specifications for a microATX

motherboard. MicroATX boards are no larger than 9.6” x 9.6” (244mm x 244mm).

This mainboard measures 9.6” x 7.75” (244mm x 197mm).The MicroATX

specification reduces system cost by utilizing a reduced chassis with a smaller power

supply. Increased motherboard integration reduces the demand for expansion slots.

The microATX form factor permits reduced case sizes and smaller power supply units.

However, the board can also be used in standard ATX cases if required.

The P5GX-M mainboard is designed around the Cyrix GXm processor. The Cyrix

GXm CPU is an Pentium-MMX compatible processor which reduces system cost by

integrating audio and video functions into the CPU and chipset. The system also

supports a PCI IDE interface, up to 256 MB of SDRAM, and a full set of I/O ports.

The P5GX-M is an excellent low-cost platform for inexpensive multimedia

workstations or an entry-level stand-alone computer. It requires just a processor and

memory module to be fully functional.

Features

Pentium-MMX Performance

The key feature of the P5GX-M mainboard is the support for the Cyrix GXm

processor. This board can run Cyrix GXm CPUs with clock speeds of 200, 233, and

266 MHz. The processor includes a 16K block of level-1 cache memory for enhanced

performance.

Highly Integrated Support Chipset

The Cyrix GXm processor is supported by the CX5530 companion chip. This chip

provides the system logic for a Pentium MMX-compatible mainboard. It supports PCI

IDE channels with bus mastering, power management, PCI to ISA bridge, and USB

ports. In addition, the CX5530 includes an integrated graphics sub-system with MPEG

acceleration, and an integrated 16-bit audio sub-system compatible with the Sound

Blaster standard.

SDRAM Memory Support

The mainboard includes two sockets for the installation of 168-pin, 3.3V SDRAM

memory modules. Each socket can be installed with a memory module with a

maximum capacity of 128 MB, so the maximum memory of the mainboard is 256 MB.

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Summary of P5GX-M

Page 1
1 overview the p5gx-m mainboard complies with the specifications for a microatx motherboard. Microatx boards are no larger than 9.6” x 9.6” (244mm x 244mm). This mainboard measures 9.6” x 7.75” (244mm x 197mm).The microatx specification reduces system cost by utilizing a reduced chassis with a small...
Page 2
2 integrated audio & video sub-systems this mainboard features fully integrated audio and video subsystems, so that after the installation of the processor and a memory module, the system is fully functional and ready for use. The graphics system supports the mmx multimedia instruction set and 2d gr...
Page 3: Mainboard Illustration
3 mainboard illustration jp2 j4 j1 jp1 dimm1 dimm2 j2 con1 con2 floppy j17 j18 j19 isa2 isa1 pci2 pci1 j15 j11 j10 j8 socket7 com2 key to mainboard components component description component description socket7 cpu socket (cyrix gxm cpu only) j4 cooling fan power 2 dimm1,2 memory module sockets jp1 ...
Page 4: I/o Port Array Illustration
4 i/o port array illustration j3 usb1 jcom1 j9 j12 j7 j12 key to i/o port components component description j3 (upper) ps/2 port for ps/2 mouse or pointing device j3 (lower) ps/2 port for ps/2 keyboard j7 parallel port (bi-directional, epp, ecp) j12 (upper) game/midi port for joystick or midi device ...
Page 5: Installation Procedure
5 installation procedure prepare the mainboard prepare the main board by installing the cyrix gxm processor and then installing either one or two memory modules. This board supports the 200, 233, or 266 mhz version of the cyrix gxm processor. Finally, use the selection jumpers to configure the board...
Page 6: Check The Jumper Settings
6 be levered upwards and latch on the edges of the dimm when it is installed correctly. Check the jumper settings use the mainboard selection jumpers to configure your board for the correct clock speed, voltage, and bus timing according to the cpu that you have installed. Set other selection jumpers...
Page 7
7 jp1: set cpu voltage jumper jp1 consists of four 2-pin jumpers. Use the jumpers to set the core voltage for the processor. See the processor documentation for information on which voltage your processor requires. Jumper settings processor core voltage pins 1-2 pins 3-4 pins 5-6 pins 7-8 shutdown o...
Page 8
8 j18: clear cmos memory jumper if you ever need to clear the system cmos memory, you can do this by moving the jumper cap to short pins 2-3 for a few seconds. When you clear the cmos memory, the system must be turned off and the atx power supply cable disconnected from the atx power connector on th...
Page 9
9 make the optional internal connections 1. Install any expansion cards into the expansion slots. The system has two 32-bit pci slots (pci1, 2) and two 8/16-bit isa slots (isa1, 2). 2. If you have installed an internal fax/modem, cable the fax/modem to the modem wake up connector j11. This will allo...
Page 10: System Bios
10 system bios the system is installed with a programmable award bios. The bios is stored on an erasable eeprom so that updated bios can be flashed to the system using the flash bios utility in system software. The bios allows system integrators to set processor and timing parameters for maximum per...
Page 11
11 power management setup this option lets users set power management timeouts for the system and install features such as lan wake up, modem wake up, and so on. Pnp/pci configuration this option configures assigns plug and play control to either the bios or the os (if supported). It allows older (l...
Page 12: System Software
12 system software the support software for this mainboard is supplied on either a cd-rom disk, or a floppy diskette, depending on the configuration of the mainboard. Some mainboard configurations do not need all the software described in this chapter. ♦ bus master ide driver please notice that the ...
Page 13: Pci Bridge Driver
13 6. In the next window, click the have disk button. The program then prompts you to type a path name where it can find the proper driver. The graphics driver can be found in the a:\vga\win95 directory of the disk provided. 7. The program will then list all the drivers available on that disk. Pick ...