IBM PC 300PL Flash Eeprom, Expansion adapters, Physical layout, System board features Real-time

Page 20

Chapter 2. System board features

Real-time

clock

and

CMOS

 

 

 

 

 

 

 

The

real-time

clock is a low-power clock that provides a

time-of-day clock and a calenda

settings

are

maintained

by

an

external battery

source

of 3

V

dc.

The

system uses

242

bytes

of complementary metal-oxide

semiconductor (CMOS) memory to st

The

CMOS

memory

is

erased

if

the jumper on the

system

board

is

moved.

To locate the battery, see “System board, Types 6584 and 6594” on page 13.

Flash EEPROM

The system board uses 4 Megabits (Mb) of flash electrically erasable, programmable, re (EEPROM) to store the basic input/output system (BIOS), video BIOS, IBM logo, Configurati Utility, and Plug and Play data.

If necessary, the EEPROM can be easily updated using a stand-alone utility program tha 3.5-inch diskette.

Expansion adapters

Each PCI-expansion connector is a

32-bit slot. PCI-expansion connectors support

the 32-bit

local-bus signalling environment that

is PCIdefinedLocal inBus Specification.

2.1

 

The

PC 300PL Personal Computer has

four PCI slots to support the

addition of

adapters. Fo

on

installing adapters,PC 300PLsee User

Guide.

 

 

For information on the connector pin assignments, see “PCI connectors” on page 27.

Physical layout

The system board might look slightly different from the one shown.

Note: A

diagram of the

system board, including switch and jumper settings, is attached

of

the computer

cover.

12 Technical Information Manual

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Contents Page 1999 ApplyAre WithContents Bios Error codesSystem software PostReferences Index Contents Recovery jumper Power-input requirements USB port Internal DasdPreface Related publicationsTerminology usage ViiExpressing storage Capacity Equals EqualsBytes, and2 073 824 System overview Major featuresSystem overview Other features POST/BIOSNetwork support PCIOn Ring Features System board featuresFeatures SystemSystem memory RimmUSB interface PCI busIDE bus master interface Video subsystem BusInterface Plug Play support Advanced Power List Bus Mastering Support For Fast Performance 64-bit 125Video subsystem resources Resource AssignmentAudio subsystem FeaturesMonitor support Super input/output controller Diskette Drive interfaceSeria l ports PortRPL Keyboard and mouse portsNetwork connection System board features Real-time Flash EepromExpansion adapters Physical layoutSystem board, Types 6584 Riser card layoutsRecovery jumper Cable connectorsRecovery jumper DVIConnector panel System boardPhysical specifications This Section Lists Physical Specifications ForTypes 6584 and 6594. NICTower Requirements ForWake LAN adapters Have Pin Right-angle Header For AUX5Power supply Power inputPower output Power supplyComponent outputs Components draw less current than Maximum ShownConnector description Output protectionSystem software System softwarePlay Flash update utility program Diagnostic programConfiguration/Setup UtilitySystem compatibility Hardware compatibilityHardware interrupts System compatibilityHard disk drives and controller Software compatibilitySoftware interrupts Machine-sensitive programsAppendix A. Connector pin assignments Monitor connectorAppendix A. Connector pin assignments Monitor port connector pin assignments-SVGAMemory connectors System memory connector pin assignmentsPin Signal Pin assignmentsPCI connector pin assignments Pin AssignmentsConnector PinConnector slot One Only For All Other slots, the signal Connectors Are on Riser cardThese Assignments Are For For pin A41IDE connectors IDE connector pin assignmentsConnector Diskette drive connector pin assignmentsPower supply connector pin assignments Pin Signal nameAlert on LAN connectors Tamper detection switchConnector pin Radio frequency identification Rfid pin assignmentsCD audio connector USB port connectorsPort KeyboardKeyboard port connector pin assignments Serial port connector pin assignmentsParallel port connector pin assignments ConnectorPin Signal Ground Appendix B. System address maps SystemInput/output AppendixMaps O address mapAre Reserved DMA I/O address mapHex Size Description Bits Byte PointerSystem address maps ConfigurationMap Appendix C. IRQ and DMA channel assignments Appendix C. IRQ and DMA channel assignmentsIRQ channel assignments DMA channel assignmentsAppendix D. Error codes Appendix D. Error CodesCodes Beep codesReference Appendix E. Notices and trademarksReferences This Publication References Advanced PowerSpecification Index ConnectorIndex Features Wake on LAN 2 Wake on Ring MemoryRfid
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