XSX Server Implementation

  This page is monitored by the OLPC team.

The implementation of an XSX School server is described on this page. You can also view the specification. The software running on this server is described in Trial1 Server Software.

Introduction

This is a server machine with a primary goal of supporting development of the School server/laptop software, including early trials. As this is a very limited production model (12-40 ?) and the design criteria are still undefined, flexibility wins out over cost. Off-the-shelf consumer PC hardware is being used.

Components

These are the particular components being used:

Motherboards

The mini-ITX form factor seemed to be the ideal in terms of meeting the requirements for relatively high processing power without a processor fan.

EPIA EN12000EG

The [EPIA EN10000EG] is based around Via's C7 processor, w. matching chip set.

Relevant features:

• 1.2 GHz VIA C7 (686) processor
• up to 1 GB DDR2 SDRAM
• 10/100/1000base-T (VIA VT6122)
• two SATA-1 ports (VIA VT6420)
• two UltraDMA-133 IDE ports (VIA VT82C686)
• four USB 2.0 ports (two off-board)
• one PCI slot

Documentation

• User's Manual (pdf) - includes jumper block descriptions
• Operating Guide (pdf)

EPIA CN10000EG

The [EPIA CN10000EG] is also based around Via's C7 processor, w. matching chip set.

Relevant features:

• 1.0 GHz VIA C7 (686) processor
• up to 1 GB DDR2 SDRAM
• 10/100base-T (VIA VT6103)
• two SATA-1 ports (VIA VT6420)
• two UltraDMA-133 IDE ports (VIA VT82C686)
• four USB 2.0 ports (two off-board)
• one PCI slot

Documentation

• User's Guide (pdf) - includes jumper block descriptions
• Operating Guide (pdf)

Memory

The memory used in all motherboards is 1GB of 533 MHz (PC-4200) DDR2 SDRAM, in a 240 pin DIMM. The particular parts are:

• Kingston, [KVR533D2N4/1G]
• Corvair, [[1]]

Drivers

Ethernet

VIA Velocity

This is the driver for the 1000base-T interface on the EPIA EN10000EG motherboards.

Component Tracking

In order to determine if problems are related to a particular supplier of a component, we must track the deployed components carefully. Here is the table where we store this information:

Serial #	Motherboard	Memory	Disk	Net I/F	Case	Location
001	EN10000EG	Kingston	Seagate	LNE	AT	Cambridge
002	EN10000EG	Corvair	Seagate	-	-	Cambridge
003	EN10000EG				AT

Where for Network interface cards:

• LNE indicates the Linksys LNE100TX
• DFE indicates the D-Link DFE-530 TX

and for Cases:

• AT indicates the Athenatech A602BS, using supplied power supply
• ?