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IBM PC 300GL manual Output protection, Connector description, Power supply

Models: PC 300GL

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Output protection

Table 15. Internal DASD

Supply voltage	Maximum current	Tolerance

+12.0 V dc	1500 mA at startup, 400 mA	+5.0% to -5.0%
	when active

Table 16. Video port pin 9

Supply voltage	Maximum current	Tolerance

+5.0 V dc	1100 mA	+5.0% to -5.0%

Note: Some adapters and hard disk drives draw more current than the rated maximums. These adapters and drives can be installed in the system; however, the power supply will shut down if the total power used exceeds the maximum power that is available.

Output protection

The power supply protects against output overcurrent, overvoltage, and short circuits. See the power supply specifications on the previous pages for details.

A short circuit that is placed on any dc output (between outputs or between an output and a dc return) latches all dc outputs into a shutdown state, with no damage to the power supply. If this shutdown state occurs, the power supply returns to normal operation only after the fault has been removed and the power switch has been turned off for at least one second.

If an overvoltage fault occurs (in the power supply), the power supply latches all dc outputs into a shutdown state before any output exceeds 130% of the power supply value.

Connector description

The power supply for PC 300GL and PC 300PL personal computers has four, 4-pin connectors for internal devices. The total power used by the connectors must not exceed the amount shown in “Component outputs” on page 26. For connector pin assignments, see “Appendix A. Connector pin assignments,” on page 33.

Chapter 4. Power supply 27

Image 34

IBM PC 300GL manual Output protection, Connector description, Power supply

Contents

hcchM mlmiM mlni hcc mlml hcchM mlmiM mlni hcc mlml Second Edition March Contents Page Hardware Maintenance Manual PrefaceRelated publications Network Administrator’s GuideTerminology Features Chapter 1. System OverviewCD-RW DVD-ROMWake on Ring ADSL modemsWake on LAN Chapter 1. System Overview4 PC 300 GL and 300 PL L2 Cache Chapter 2. System board featuresIntel Pentium III microprocessor with MMX technology Chip set controlMem O Table. 1. Memory Configuration MBTotal Memory 6 PC 300 GL and 300 PLIDE bus master interface PCI BusUSB interface Video Subsystem Resource Table 2. Video subsystem resourcesAssignment Audio Subsystem 10 PC 300 GL and 300 PLDiskette Drive Interface Integrated peripheral controllerSerial ports Keyboard and mouse ports Parallel port12 PC 300 GL and 300 PL Flash EEPROM Network connectionReal-time clock and CMOS Expansion adaptersPhysical layout Rocker switches speed Table 6. Large rocker switch settingsMicroprocessor 16 PC 300 GL and 300 PLTable 6. Large rocker switch settings Cable connectorsConnector panel Table 7. Small rocker switch settingsSerial 18 PC 300 GL and 300 PLSVGA Monitor Mouse Keyboard USB Chapter 2. System board featuresSerial Serial USB Line In Headphone Line Out Microphone Parallel SVGA Monitor20 PC 300 GL and 300 PL Chapter 3. Physical specifications PC 300 GL and PL desktopPC300 PL and GL tower 22 PC 300 GL and 300 PLAirflow Chapter 3. Physical specificationsHeat output Acoustical noise-emission values24 PC 300 GL and 300 PL Power input Chapter 4. Power supplyPower output Component outputs 26 PC 300 GL and 300 PLOutput protection Connector descriptionChapter 4. Power supply 28 PC 300 GL and 300 PL Plug and Play BIOSChapter 5. System software POSTAdvanced Configuration and Power Interface ACPI Configuration/Setup Utility programAdvanced Power Management APM Flash update utility programHardware compatibility Chapter 6. System compatibilityHardware interrupts Software interrupts Software compatibilityMachine-sensitive programs Appendix A. Connector pin assignments SVGA monitor connectorSystem memory connector DVI-I monitor connector34 PC 300 GL and 300 PL x64 nonparity Table 20. System memory connector pin assignmentsAppendix A. Connector pin assignments x72 ECCx72 ECC Table 20. System memory connector pin assignmentsx64 nonparity x64 nonparityTable 20. System memory connector pin assignments Signal name Table 21. System memory connector pin input/outputSignal name 38 PC 300 GL and 300 PLSignal name Table 21. System memory connector pin input/outputSignal name PCI connectors 40 PC 300 GL and 300 PLSignal Table 22. PCI connector pin assignmentsSignal IDE connectors 42 PC 300 GL and 300 PLSignal Diskette drive connectorTable 24. Diskette drive connector pin assignments SignalUSB port connectors Power supply connectorWake on LAN connectors 44 PC 300 GL and 300 PLMouse and keyboard port connectors Serial port connectorParallel port connector 46 PC 300 GL and 300 PLAppendix B. System address maps System memory mapInput/output address map 48 PC 300 GL and 300 PLSize Table 33. I/O address mapAddress hex DescriptionDMA I/O address map 50 PC 300 GL and 300 PLPCI configuration space map 52 PC 300 GL and 300 PL Table 36. IRQ channel assignments Appendix C. IRQ and DMA channel assignmentsSystem resource Data width Table 37. DMA channel assignmentsDMA channel System resourcePOST error codes Appendix D. Error codesBeep codes 56 PC 300 GL and 300 PL IBM Director of Licensing IBM Corporation North Castle Drive Appendix E. Notices and TrademarksArmonk, NY U.S.A 58 PC 300 GL and 300 PL Extended Capabilities Port Specification Kit BibliographyPCI BIOS Specification 2.0, Source PCI Special Interest Group 60 PC 300 GL and 300 PL Index A