348 Upgrade and Maintenance Manual
RX2520 M4
System board and components
15.1 Basic information
This section provides instructions for the system board and the following
components:
●
CMOS battery
CMOS memory (volatile BIOS memory) and the real-time clock are powered
by a lithium coin cell (CMOS battery). This cell lasts up to five years,
depending on ambient temperature and use.
If the CMOS battery is depleted or falls below minimum voltage levels, it
need to be replaced immediately.
●
TPM (Trusted Platform Module)
The system board is optionally equipped with a Trusted Platform Module
(TPM). This module enables programs from third party manufacturers to
store key information, for example drive encryption using Windows Bitlocker
Drive Encryption.
●
iRMC microSD card
The iRMC microSD card is necessary for using the embedded Lifecycle
Management (eLCM) functionality of the iRMC.
●
M.2 SSD
The system board offers two M.2 slots (Key M) with support for 42 mm,
60 mm, 80 mm and 110 mm long M.2 SSDs. With the M.2 SSD an internal
SSD is offered. This SSD can be configured as a boot device or data storage
device.
●
Dual microSD 64GB Enterprise
The system board is optionally equipped with a Dual microSD 64GB
Enterprise. The Dual microSD 64GB Enterprise offers an Integrated
Hardware RAID solution based on RAID-on-Chip (ROC) technology.
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