Usb Key; Battery; Field Replaceable Units (Fru); User Accessible Jumpers, Sockets, And Connectors - Dell PowerEdge R715 Technical Manual

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3.14 USB Key

An optional USB memory key installed inside your system can be used as a boot device, security key,

or mass storage device. The USB connector must be enabled by the Internal USB Port option in the

Integrated Devices screen of the System Setup program.

A replaceable coin cell CR2032 3V battery is mounted on the planar to provide backup power for the

Real-Time Clock and CMOS RAM on the SP5100 chip. An optional 3.7V lithium ion RAID battery is

available.

Both planars contain a serial EEPROM to contain FRU information including Dell part number, part

revision level, and serial number. The iDRAC6 Enterprise contains a FRU EEPROM. The backplane SEP

and the power supply microcontroller are also used to store FRU data.

See the Jumpers and Connectors chapter in the PowerEdge R715 Hardware Owner's Manual on

Support.Dell.com.

PowerEdge R715 Technical Guide

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