Intel LH500 user manual Power Supply, ATX 24-pin power connector

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2.5 Power Supply

2.5.1 ATX 24-pin power connector

There are two 24 pin power connectors on the motherboard. Only one is needed to make the motherboard operational. The redundancy is built-in for your convenience; you may choose either one to hook up depending on the layout of your system chassis. The 24-pin connector provides power to the motherboard and the 8-pin connector provides power to the CPU. So both must be connected for the system to run properly.

Be sure to plug the power supply connector in the right direction. Failure to do so could cause damage to the motherboard.

Make sure your power supply can support at least 2 amps standby power for the Advanced Configuration and Power Interface (ACPI) functions.

Refer to the following diagram for the connector locations and orientations.

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Contents LH500 Arima Computer Corp Table of Contents IDE Channel sub-menu Boot Feature sub-menu Legal Disclaimer Technical Support Safety Instruction Congratulations UnpackingQuick Installation Guide CN46Features Highlight Motherboard Specification Bios Motherboard Layout major components Hardware Monitor Hardware Installation Mounting the motherboardInstalling the processor Page Page Page Heatsink not included in the package Installing the memory Dimm combinationPage Installing Dimm modules Page Jumpers Configuration Clear Cmos headerEnable onboard VGA header PCI-X Slot 1 Jumper Setting PCI-X Slot 2 Jumper PCI-X Slot 5 Jumper LAN 82546GB Power Supply ATX 24-pin power connectorPage ATX 8-pin power connector Cables & Connectors Floppy disk drive connectorPage IDE connectors Front Panel Connectors Computer without turning on/off your power switch Rear Panel I/O ports Back Panel LAN LED OFFBlink Front Panel LAN LED Connector System Speaker Connector Front USB Connector Page Front Panel Serial Port Connector Bios Setup Using Setup KEY FunctionTroubleshooting Main Menu MM/DD/YYYYIDE Channel sub-menu CD-ROMFpio 3/ DMA Fpio 4/ DMA Boot Feature sub-menu Advanced Menu DOSPage Advanced Chipset Sub Menu Advanced Chipset Control Sub Menu looks like the followingPCI Express Device Control Sub Menu Advanced Processor Options Sub Menu 4 I/O Device Configuration Sub Menu IRQVT-UTF8 Console Redirection Sub MenuPC-ANSI XON/XOFF CTS/RTSIpmi Sub Menu Ipmi Sub Menu looks like the followingMM DD Yyyy DD MM YyyyYyyy MM DD Security Menu SecurityPower Menu PowerThis state but remain in a lower Boot Menu BootSaving Changes Load Setup DefaultsExit Menu Exit Discarding ChangesDiscard Changes Save ChangesAbout the Boot Utilities Using Phoenix QuietBootPage Phoenix MultiBoot Atapi CD-ROMPHLASH16 Bios Flash Upgrade UtilityExecuting Phoenix Phlash BBLAppendix I Glossary Page Page Page Page Appendix II Block Diagram Page Appendix III FAQ