HP dc5850 System Status, Thermal Sensing and Cooling, System Operational Status LED Indications

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System Support

4.5.3 System Status

These systems provide a visual indication of system boot, ROM flash, and operational status through the power LED and internal speaker, as described in Table 4-7.

.

Table 4-7.

System Operational Status LED Indications

 

 

 

 

System Status

PowerLED

Beeps [2]

Action Required

S0: System on (normal

Steady green

None

None

operation)

 

 

 

 

 

 

 

S1: Suspend

Blinks green @ .5 Hz

None

None

S3: Suspend to RAM

Blinks green @ .5 Hz

None

None

S4: Suspend to disk

Off – clear

None

None

S5: Soft off

Off – clear

None

None

Processor thermal shutdown

Blinks red 2 times @ 1 Hz [1]

2

Check air flow, fans,

 

 

 

heatsink

 

 

 

 

Processor not seated / installed

Blinks red 3 times @ 1 Hz [1]

3

Check processor

 

 

 

presence/seating

 

 

 

 

Power supply overload failure

Blinks red 4 times @ 1 Hz [1]

4

Check system board problem

 

 

 

[3],

 

 

 

 

Memory error (pre-video)

Blinks red 5 times @ 1 Hz [1]

5

Check DIMMs, system board

Video error

Blinks red 6 times @ 1 Hz [1]

6

Check graphics card or

 

 

 

system board

 

 

 

 

PCA failure detected by BIOS

Blinks red 7 times @ 1 Hz [1]

7

Replace system board

(pre-video)

 

 

 

 

 

 

 

Invalid ROM checksum error

Blinks red 8 times @ 1 Hz [1]

8

Reflash BIOS ROM

Boot failure (after power on)

Blinks red 9 times @ 1 Hz [1]

9

Check power supply,

 

 

 

processor, sys. bd

 

 

 

 

Bad option card

Blinks red 10 times @ 1 Hz [1]

None

Replace option card

NOTES:

Beeps are repeated for 5 cycles, after which only blinking LED indication continues.

[1]Repeated after 2 second pause.

[2]Beeps are produced by the internal chassis speaker.

[3]Check that CPU power connector P3 is plugged in.

4.5.4Thermal Sensing and Cooling

All systems feature a variable-speed fan mounted as part of the processor heatsink assembly. All systems also provide or support an auxiliary chassis fan. All fans are controlled through temperature sensing logic on the system board and/or in the power supply. There are some electrical differences between form factors and between some models, although the overall functionally is the same. Typical cooling conditions include the following:

1.Normal—Low fan speed.

2.Hot processor—ASIC directs Speed Control logic to increase speed of fan(s).

3.Hot power supply—Power supply increases speed of fan(s).

4.Sleep state—Fan(s) turned off. Hot processor or power supply will result in starting fan(s).

 

4-12

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Technical Reference Guide

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Contents Technical Reference Guide OctoberTechnical Reference Guide Contents System Support Input/Output InterfacesPower and Signal Distribution Integrated Graphics SubsystemSystem Bios Error Messages and Codes IndexAdditional Information Sources IntroductionAbout this Guide Online ViewingSpecial Notices Serial NumberNotational Conventions ValuesAcronyms and Abbreviations Common Acronyms and AbbreviationsAcronym or Abbreviation Description CDS Eisa LAN PAL Sdvo URL Introduction System Overview IntroductionFeatures Feature Difference Matrix by Form Factor SFFSystem Architecture HP Compaq dc5850 Business PC Architecture, Block diagram Chipset Components and Functionality AMD Processor SupportChipset Components FunctionSupport Component Functions Support ComponentsSystem Memory Component Name FunctionUniversal Serial Bus Interface Mass StorageSerial Interface Network Interface ControllerIntegrated Graphics Subsystem Statistics Integrated Graphics ProcessorAudio Subsystem Integrated Graphics ControllerPower Supply Electrical Specifications SpecificationsEnvironmental Specifications Factory Configuration Parameter Operating Non-operatingPhysical Specifications Parameter SFFSystem Overview Processor/Memory Subsystem Processor/Memory Subsystem ArchitectureProcessor Changing/Upgrading AMD ProcessorsAMD Processor Overview Supported Processors partial listingMemory Subsystem Memory Socket Loading Memory Loading/UpgradingMemory Mapping and Pre-allocation Channel a Channel B SocketSystem Memory Map for maximum of 8 gigabytes Processor/Memory Subsystem PCI Bus Overview System SupportPCI 2.3 Bus Operation Software/Driver Layer Device REQ/GNT Line PCI Connector SlotPCI Express Bus Operation Transaction Protocol LayerPCI Interrupts PCI Power Management SupportOption ROM Mapping Link LayerPCI 2.3 Connector PCI ConnectorsPCI 2.3 Bus Connector Pinout PCI Express Connectors PCI Express Bus Connector PinoutInterrupts Apic ModeSystem Resources ModePCI Interrupt Distribution Direct Memory AccessConnector PCI slot 1 J20 System Interrupts System BoardReal-Time Clock and Configuration Memory Clearing CmosStandard Cmos Locations Configuration Memory Cmos MapSystem Management Security FunctionsCable Lock Provision Power-On / Setup PasswordInterface Security Acpi Wake-Up Events Power ManagementAcpi Wake-Up Event System Wakes From Thermal Sensing and Cooling System Status PowerLED Beeps Action RequiredSystem Status System Operational Status LED IndicationsRegister Map and Miscellaneous Functions System I/O MapSystem I/O Map Port FunctionSB700 Functions Gpio FunctionsSIO Controller Functions System Support Input/Output Interfaces Sata Interfaces Sata ConnectorPin Sata Connector Pinout AHCI/RAID SupportImplementing Ahci RAID for Non-Factory Configurations Factory Configuration for RAIDRAID 1-Mirroring with Two Hard Drives Diskette Drive Interface Pin Diskette Drive Connector Pinout Pin Signal DescriptionDB-9 Serial Connector Pinout Serial InterfaceExtended Capabilities Port Mode Standard Parallel Port ModeEnhanced Parallel Port Mode Parallel Interface SupportDB-25 Parallel Connector Pinout Parallel Interface ConnectorPin Signal Function Keyboard/Pointing Device Interface Keyboard Interface OperationKeyboard/Pointing Device Connector Pinout Keyboard/Pointing Device Interface ConnectorPointing Device Interface Operation SB700 signals USB Connector Location USB ConnectorUSB Connector Pinout Universal Serial Bus InterfaceUSB Cable Length Data Signal Insulation colorUSB Cable Data USB Color CodeAudio Subsystem Functional Block Diagram Audio SubsystemHD Audio Link Bus HD Audio ControllerAudio Multistreaming HD Audio Subsystem Specifications Audio SpecificationsParameter Measurement Network Interface Controller LAN I/F NICWake-On-LAN Support Power Management SupportAlert Standard Format Support NIC Specifications NIC ConnectorNIC Specifications Parameter Compatibility standard orprotocolIntegrated Graphics Processor Integrated Graphics Processor, Block diagram Functional DescriptionUpgrading Analog Monitor Connector Monitor ConnectorsDB-15 Monitor Connector Pinout DVI-D Monitor Connector Pinout DVI-D ConnectorPin Signal Integrated Graphics Processor Power and Signal Distribution Power DistributionSFF 240-Watt Power Supply Unit Specifications SFF Power SupplyMin Range Current Max Surge Tolerance Loading Ripple MT 300-Watt Power Supply Unit Specifications MT Power SupplyRange or Min Current Max Surge Tolerance Loading Ripple Power Button Actions Power ControlPower Button Pressed Power Button ResultsPower LED Indications Condition Wake Up Events Wake-On-LANState System Condition System Power StatesPower Transition OS Restart Consumption To S0 by RequiredSystem Board Component Designations Signal DistributionDesignator Component function Shows pinouts of headers used on the sytem boards Power and Signal Distribution System Bios Upgrading ROM FlashingChangeable Splash Screen Network Boot F12 Support Boot FunctionsBoot Device Order Memory Detection and ConfigurationBoot Error Codes Boot Error CodesVisual power LED Audible speaker Meaning Client Management Functions Function ModeClient Management Functions INT15 System ID Numbers Temperature StatusSystem ID and ROM Type System System ID Form Factor Subsystem Device IDSmbios Functions Type DataUSB Legacy Support Management FunctionsTable A-1 Beep/Power LED Codes Error Messages and CodesBeep/Power LED Codes Beeps Power LED Probable CausePower-On Self Test Post Messages Table A-2 Error Messages and Codes System Error Messages Table A-3 System Error Messages Probable CauseTable A-4 Memory Error MessagesMemory Error Messages Message Probable CauseKeyboard Error Messages Table A-5 Keyboard Error Messages Probable CauseTable A-6 Printer Error Messages Probable Cause Printer Error MessagesVideo Graphics Error Messages Table A-7 Video Graphics Error Messages Probable CauseDiskette Drive Error Messages Table A-8 Diskette Drive Error Messages Probable CauseSerial Interface Error Messages Table A-9 Serial Interface Error Messages Probable CauseModem Communications Error Messages System Status Error Messages System Status Error MessagesTable A-11 Hard Drive Error Messages Table A-12 Hard Drive Error Messages Probable CauseXx = 03, Hard drive read/write compare test Table A-13 Hard Drive Error Messages Probable Cause Table A-14 Video Graphics Error Messages Probable Cause Audio Error MessagesTable A-15 Audio Error Messages Probable Cause DVD/CD-ROM Error Messages 17 DVD/CD-ROM Error MessagesNetwork Interface Error Messages Table A-17 Network Interface Error Messages Probable CauseScsi Interface Error Messages 65xx-xx, 66xx-xx Table A-18 Scsi Interface Error MessagesPointing Device Interface Error Messages 8601-xx Error Messages and Codes Index NumericsIndex
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dc5850 specifications

The HP dc5850 is a desktop computer that was designed for business environments, offering a blend of performance, reliability, and efficiency. Released during the height of the mid-2000s, this system is powered by AMD processors, particularly the Athlon or Phenom series, which ensures that it can handle various computational tasks with ease.

The dc5850 features a compact chassis that adheres to the Microtower form factor. This design not only saves space but also allows for easier upgrades and maintenance. The unit typically supports a range of RAM configurations, with options for up to 8GB of DDR2 memory. This flexibility enables the user to tailor the system's performance according to their needs, whether for basic office tasks or more demanding applications.

Storage options on the HP dc5850 include a 3.5-inch HDD that can accommodate substantial data, with capacities typically ranging from 160GB to 1TB. The inclusion of a SATA interface ensures fast data transfer rates, which is essential for improving overall system performance. Moreover, the dc5850 boasts multiple USB ports, including USB 2.0 and sometimes even USB 3.0, facilitating easy connectivity with peripherals such as printers, scanners, and external drives.

Graphics capabilities on the dc5850 are generally provided by integrated solutions, although users have the option to add discrete graphics cards for enhanced performance in visual tasks. The system often comes with integrated audio, which supports basic multimedia needs without requiring additional sound cards.

In terms of connectivity, the HP dc5850 features built-in Ethernet for wired networking and may also offer options for Wi-Fi capabilities via PCI expansion slots. This makes it suitable for networked business environments, enabling seamless integration into office infrastructures.

The system is designed with energy efficiency in mind, complying with various environmental standards, thereby reducing its carbon footprint. This aspect may also lead to lower operational costs for businesses focused on sustainability.

Overall, the HP dc5850 stands out as a versatile desktop solution, catering to the essential needs of small to medium-sized businesses. With its combination of performance, expandability, and energy efficiency, it remains a noteworthy choice for users seeking reliable computing power in a compact and manageable form.