Compaq MSB900L user manual Eeprom saved Cmos Setup, Bits = Reserved 34h Minor CPU Revision

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DIGITAL-LOGIC AG

 

 

MSB900/L Detailed Technical Manual V1.0

CMOS Map continued...

 

 

 

 

 

 

 

 

 

 

Location

Description

 

 

 

 

 

 

 

 

 

33h

Base Memory Installed

 

 

 

 

Bit 7

= Flag for Memory Size

 

 

 

 

0

=

640kB

 

 

 

 

1

=

512kB

 

 

 

Bits 6-0

= Reserved

 

 

 

34h

Minor CPU Revision

 

 

 

 

 

 

 

 

Differentiates CPUs within a CPU type (i.e., 486SX vs 486 DX,

 

 

 

vs 486 DX/2). This is crucial for correctly determining CPU input

 

 

 

clock frequency. During a power-on reset, Reg DL holds minor

 

 

 

CPU revision.

 

 

 

 

35h

Major CPU Revision

 

 

 

 

 

 

 

 

Differentiates between different CPUs (i.e., 386, 486, Pentium).

 

 

 

This is crucial for correctly determining CPU input clock fre-

 

 

 

quency. During a power-on reset, Reg DH holds major CPU

 

 

 

revision.

 

 

 

 

 

 

 

 

 

 

 

36h

Hotkey Usage

 

 

 

 

 

Bits 7-6

= Reserved

 

 

 

 

Bit 5

= Semaphore for Completed POST

 

 

 

Bit 4

= Semaphore for 0 Volt POST (not currently used)

 

 

 

Bit 3

= Semaphore for already in SCU menu

 

 

 

Bit 2

= Semaphore for already in PM menu

 

 

 

Bit 1

= Semaphore for SCU menu call pending

 

 

 

Bit 0

= Semaphore for PM menu call pending

 

 

40h-7Fh

Definitions for these locations vary depending on the chipset.

 

 

 

 

 

 

 

 

5.8.EEPROM saved CMOS Setup

The EEPROM has different functions, as listed below:

•Backup of the CMOS-Setup values.

•Storing system information (i.e., version, production date, customization of the board, CPU type).

•Storing user/application values.

The EEPROM will be updated automatically after exiting the BIOS setup menu. The system will operate also without any CMOS battery. While booting, the CMOS is automatically updated with the EEPROM values.

Press the Esc-key while powering on the system before the video shows the BIOS message and the CMOS will not be updated.

This would be helpful, if wrong parameters are stored in the EEPROM and the setup of the BIOS does not start.

If the system hangs or a problem appears, the following steps must be performed:

1.Reset the CMOS-Setup (disconnect the battery for at least 10 minutes).

2.Press Esc until the system starts up.

3.Enter the BIOS Setup:

a)load DEFAULT values

b)enter the settings for the environment

c)exit the setup

4.Restart the system.

The user may access the EEPROM through the INT15 special functions. Refer to that chapter in the GEODE LX800-LX900 manual on the Product CD.

The system information is read-only and uses the SFI functions. Refer to the GEODE LX800-LX900 manual.

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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 StatementRecycling Information Limited Two Year WarrantyTechnical Support Explanation of Symbols CE ConformityApplicable Documents and Standards For Your Safety RoHS CommitmentRoHS Compliant Production Process RoHS Compatible Product DesignWeee Application 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 Board / Version Unit Tolerance Date / Author MSB800CON Part NrMm millimeter + / 0.1mm 25.10.2006 / BRR 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 RevisionMemory & I/O Map Eeprom Memory for SetupSystem Memory 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 VGA/LCD Controller of the Geode LX900 Resolution Col. Dept FrequencyGraphic Modes Video Input Description of the ConnectorsConnector Structure Pin Remarks Flat cableTop view of the MSB900/L Bottom view of the MSB900/L Pin Signal Power Supply Pin Signal Shield Power supplyX14 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 SignalX50 USB 1 Connector Dual-USB Pin Signal Remarks X39 Serial Port COM2 Header onboard SUB connector SignalX51 USB 2 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-PortX301 VGA Monitor CRT-Signals 15pins High-Density DSub Pin X230 JTAG-Port Pin SignalTCK TMS TDI TDO Jumper Locations on the Board Reload Default Bios SettingsDisabled Jumpers on MSB900/LDIGITAL-LOGIC AG Cable Interfaces Hard Disk Cable 44pinPin Signal LPT1 25pin D-Sub female Pin Signal COM1 9pin D-Sub maleCOM1/LPT Serial Interface Cable Pin Signal COM2 9pin D-Sub male COM2 Serial Interface CableThermal Analysis for Case Integration Thermal SpecificationsMHz Uin Assembly Views MSB900/LDIGITAL-LOGIC AG Mechanical Dimensions Combined standard Dhcp and redirection services PXE-BOOT and PXE-SETUP in the BiosSeparate standard Dhcp and redirection services DIGITAL-LOGIC AG MPC20 USD PXE-LICENSE OrderProduct Currency Circle one CHFDram Bios CmosCmos EMI / EMCSQS ROM-BIOS RTCUdoc USB VGA

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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