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Dell PowerEdge SC420 User Manual

Dell PowerEdge SC420
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Dell™ PowerEdge™ SC 420 Systems
Information Update
This document provides updated information for your system on the following topics:
Processor speed
Memory module installation guidelines
Execute Disable feature
Diagnostic indicator codes for memory configuration errors
RAID Storage Manager application requires reboot after enabling write back cache
RAID Storage Manager software not supported on Red Hat
®
Linux operating systems
Removing the power supply
Processor Speed
The minimum clock speed for an Intel
®
Celeron
®
processor offered on this system is 2.53 GHz.
Memory Module Installation Guidelines
If only one memory module is installed, it must be:
Installed in connector DIMM_1
At least 256 MB
Execute Disable Feature
NOTE: Verify application and operating system support before enabling this feature.
Execute Disable (XD) is a new security feature that helps prevent code execution in certain
memory areas when combined with a supporting operating system and supporting applications.
Execute Disable memory protection can help prevent a class of viruses that use buffer overflow
attacks. Execute Disable is visible under
Security Options
in the F2 BIOS System Setup program.
The feature must be enabled in System Setup and must be supported by system processors and
by the operating system to allow supporting applications to use it.
Execute Disable has two settings,
On
and
Off
, with
On
being the default setting.
On
indicates
that Execute Disable Memory Protection Technology is on.
Off
indicates that Execute Disable
Memory Protection Technology is off.
May 2005

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Dell PowerEdge SC420 Specifications

General IconGeneral
Form FactorTower
Processor SpeedUp to 3.6 GHz
NetworkIntegrated Gigabit Ethernet
Power Supply305W
ProcessorIntel Pentium 4 or Celeron D
MemoryUp to 4GB DDR2
StorageSATA
Drive Bays4 x 3.5"
Operating SystemWindows Server 2003

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