Dell PowerEdge SC420 Обновление информации
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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
•
Removing the power supply
Processor Speed
The minimum clock speed for an Intel
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.
®
®
Celeron
processor offered on this system is 2.53 GHz.
®
Linux operating systems
May 2005