The temperature sensor on the backplane provides temperature information to the BMC (baseboard management controller) on the server board through chassis service messages.

The backplane power control will power down a drive when a failure is detected and reported to the SCSI bus. When a new drive is inserted, the power control waits a short time for the drive to become fully seated and then applies power to the drive.

Power Supply

The 300 watt PFC (power factor correction) universal type power supply is designed to minimize EMI. The supply operates within the following voltage ranges and is rated as follows:

￿￿100-120 V at 50/60 Hertz (Hz); 4.6 A maximum

200-240 V￿at 50/60 Hz; 2.3 A maximum

The DC output voltages of the power supply are +5 V, +12 V, +3.3 V, -5 V, -12 V, and

+5 V standby. Power to the server board is provided through the power cable to the 24-pin main power connector.

Checking the Power Cord

WARNING

Do not attempt to modify or use a supplied AC power cord if it is not the exact type required.

If a power cord supplied with the system is not compatible with the AC wall outlet in your region, get one that meets the following criteria:

The cord must be rated for the available AC voltage and have a current rating that is at least

￿125% of the current rating of the system.

The connector that plugs into the wall outlet must be a grounding-type male plug designed for use in your region. It must have certification marks showing certification by an agency acceptable in your region.

The connector that plugs into the AC receptacle on the system power supply must be an IEC

￿￿320, sheet C13, type female connector.

In Europe, the cord must be less than 4.5 meters (14.76 feet) long, and it must be flexible <HAR> (harmonized) or VDE certified cordage to comply with the system's safety certifications.

System Cooling

The chassis includes four tachometer fans for cooling and airflow. One of these is the integrated fan in the power supply.

NOTE

The chassis side cover must be on the system for proper cooling.

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Intel Astor II Server Chassis Subassembly Product Guide

Page 12
Image 12
Intel II manual Power Supply, System Cooling, Checking the Power Cord