Compaq MSB900L user manual PXE-BOOT and PXE-SETUP in the Bios

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DIGITAL-LOGIC AG

MSB900/L Detailed Technical Manual V1.0

13.PXE-BOOT AND PXE-SETUP IN THE BIOS

PXE Protocol

PXE is defined on a foundation of industry-standard Internet protocols and services that are widely deployed in the industry, namely TCP/IP, DHCP, and TFTP. These standardize the form of the interactions between clients and servers. To ensure that the meaning of the client-server interaction is standardized as well, cer- tain vendor option fields in DHCP protocol are used, which are allowed by the DHCP standard. The opera- tions of standard DHCP and/or BOOTP servers (that serve up IP addresses and/or NBPs) will not be dis- rupted by the use of the extended protocol. Clients and servers that are aware of these extensions will rec- ognize and use this information, and those that do not recognize the extensions will ignore them.

In brief, the PXE protocol operates as follows. The client initiates the protocol by broadcasting a DHCPDISCOVER containing an extension that identifies the request as coming from a client that implements the PXE protocol. Assuming that a DHCP server or a Proxy DHCP server implementing this extended proto- col is available, after several intermediate steps, the server sends the client a list of appropriate Boot Serv- ers. The client then discovers a Boot Server of the type selected and receives the name of an executable file on the chosen Boot Server. The client uses TFTP to download the executable from the Boot Server. Finally, the client initiates execution of the downloaded image. At this point, the client’s state must meet certain re- quirements that provide a predictable execution environment for the image. Important aspects of this envi- ronment include the availability of certain areas of the client’s main memory, and the availability of basic net- work I/O services.

Deployment of servers

On the server end of the client-server interaction there must be available services that are responsible for providing redirection of the client to an appropriate Boot Server. These redirection services may be deployed in two ways:

1. Combined standard DHCP and redirection services.

The DHCP servers that are supplying IP addresses to clients are modified to become, or are replaced by servers that serve up IP addresses for all clients and redirect PXE-enabled clients to Boot Servers as requested.

2. Separate standard DHCP and redirection services.

PXE redirection servers (Proxy DHCP servers) are added to the existing network environment. They respond only to PXE-enabled clients, and provide only redirection to Boot Servers. Each PXE Boot Server must have one or more executables appropriate to the clients that it serves.

Preboot Execution Environment (PXE) Specification 11

Version 2.1 September 20, 1999

Copyright © 1998, 1999 Intel Corporation. All rights reserved.

This diagram illustrates the relationship between the NBP (the remote boot program) and the PXE APIs.

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Contents MSB900/L SBCAbout this Manual and How to Use It MSB900/L Detailed Technical ManualTable of Contents 10.1 Disclaimer PrefaceTrademarks Environmental Protection StatementTechnical Support Limited Two Year WarrantyRecycling Information Explanation of Symbols CE ConformityApplicable Documents and Standards For Your Safety RoHS CommitmentWeee Application RoHS Compatible Product DesignRoHS Compliant Production Process Swiss Quality Swiss Association for Quality and Management Sys- temsOverview Standard Features of the MSB900/LUnique Features DMAMSB900 Block Diagram MSB900/MSB900L specifications Peripheral Extension Specification Mass Storage SpecificationStandard AT Interfaces Specification Name Power Supply SpecificationExamples of Ordering Codes Related Application NotesDimensions & Diagrams MSB900/LDIGITAL-LOGIC AG DIGITAL-LOGIC AG DIGITAL-LOGIC AG Mm millimeter + / 0.1mm 25.10.2006 / BRR MSB800CON Part NrBoard / Version Unit Tolerance Date / Author MSB900/L Incompatibilities to a standard PC/AT High Frequency Radiation to meet EN55022External battery assembling for the MSB900L Battery-LifetimeBUS Signals Addressing PCI DevicesThis Bios history is not for the following products Version Date Status ModificationsTest environment for power consumption measurement Power RequirementsBoot Time Detailed System DescriptionCPU, Boards and RAMs InterfacesFloppy Disk Interface ControllersSerial Ports COM1-COM2 Interrupt ControllersROM-BIOS Sockets Timers and CountersProgrammable Timers RTC Real Time ClockDevice Bios Cmos SetupCmos RAM Map MapCmos Map Cmos Map Bit = Internal IDE Controller Disable Password Eeprom saved Cmos Setup Bits = Reserved 34h Minor CPU RevisionSystem Memory Map Eeprom Memory for SetupMemory & I/O Map System I/O map Addr Function Size CommentIf KEL Memory Offset 100h0 = MSB900/L Detailed Technical Manual Map LPCMSR bit enables/disables into I/O Graphic Modes Resolution Col. Dept FrequencyVGA/LCD Controller of the Geode LX900 Video Input Description of the ConnectorsConnector Structure Pin Remarks Flat cableTop view of the MSB900/L Bottom view of the MSB900/L X14 Power Supply Pin Signal Shield Power supplyPin Signal X15 Operator Panel / Flat Panel bottom side GND LVDSYAP2 LVDSYAM2 GND LVDSYAP0 LVDSYAM0GND LVDSYAP1 LVDSYAM1 GND Lvdsclkam LvdsclkapX33 10/100 BASE-T Interface Connector Pin Signal CAT X31 Keyboard PS/2 and Mouse Utility ConnectorConnector and Adapter Mini- DIN PS/2 6 PC Remarks X34 10/100 BASE-T Interface Connector Pin SignalX51 USB 2 Connector Dual USB Pin Signal Remarks X39 Serial Port COM2 Header onboard SUB connector SignalX50 USB 1 Connector Dual-USB Pin Signal Remarks X60 IDE Interface Pin Signal X52 USB Udoc not assembledPin Power supply GND X101 PCI-104 BUS Interface Pin Dlag boards have them as NC not connected X110 LPC-PortTCK TMS TDI TDO X230 JTAG-Port Pin SignalX301 VGA Monitor CRT-Signals 15pins High-Density DSub Pin Jumper Locations on the Board Reload Default Bios SettingsDisabled Jumpers on MSB900/LDIGITAL-LOGIC AG Cable Interfaces Hard Disk Cable 44pinCOM1/LPT Serial Interface Cable Pin Signal COM1 9pin D-Sub malePin Signal LPT1 25pin D-Sub female Pin Signal COM2 9pin D-Sub male COM2 Serial Interface CableMHz Uin Thermal SpecificationsThermal Analysis for Case Integration Assembly Views MSB900/LDIGITAL-LOGIC AG Mechanical Dimensions Separate standard Dhcp and redirection services PXE-BOOT and PXE-SETUP in the BiosCombined standard Dhcp and redirection services DIGITAL-LOGIC AG MPC20 USD PXE-LICENSE OrderProduct Currency Circle one CHFDram Bios CmosCmos EMI / EMCUdoc USB VGA ROM-BIOS RTCSQS

MSB900, MSB900L specifications

The Compaq MSB900 and MSB900L are noteworthy entries in the realm of personal computing, particularly for their cutting-edge features and innovative technologies that defined their era. Positioned as versatile desktop solutions, both models have garnered attention for their robust performance and user-friendly design.

The Compaq MSB900 is equipped with a powerful processor that enhances multitasking efficiency. Its architecture supports a range of demanding applications, making it suitable for both professional and everyday use. Users can expect a seamless experience whether working on complex spreadsheets or engaging in casual gaming.

In terms of memory, the MSB900 boasts expandable RAM options, allowing users to enhance their system's capabilities as needed. The availability of multiple RAM slots provides flexibility for upgrades, ensuring the system can keep pace with future software requirements. Storage solutions in the MSB900 include high-speed hard drives, which contribute to fast boot times and robust data retrieval.

The MSB900L variant steps up the performance with additional features tailored for power users. It incorporates advanced graphics capabilities, offering superior visual experiences for gaming and multimedia applications. The dedicated graphics card provides a substantial boost in rendering performance, making it a worthy choice for graphic designers and video editors.

One of the standout characteristics of the MSB900 and MSB900L is their commitment to connectivity. Both models come equipped with a wide array of ports, ensuring compatibility with various peripherals. This includes USB ports for modern devices, Ethernet ports for wired networking, and legacy connections for older technology, catering to a diverse user base.

Energy efficiency is another key feature of these models. Designed with power-saving technologies, the Compaq MSB900 and MSB900L aim to reduce energy consumption without compromising performance. This focus not only helps to lower operating costs but also aligns with growing consumer preferences for environmentally conscious products.

In summary, the Compaq MSB900 and MSB900L offer a compelling combination of performance, expandability, and connectivity. Their innovative features and user-friendly design make them suitable for a wide range of users, from casual consumers to professional power users. As a testament to Compaq’s legacy, these models continue to be regarded as reliable choices in the personal computing landscape.
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