Dell PowerEdge 1950 Bilgi Güncellemesi - Sayfa 5

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Dell PowerEdge 1950 Bilgi Güncellemesi
This document provides updated information for your system on the following topics:
•
Quad-core processor upgrades
•
Memory mirroring with fully buffered DIMMs
•

System message update

•
LCD status message update
•
System Setup program update
•
Linux enumeration of NICs
•
Autocool operation
Quad-Core Processor Upgrades
If the front of your system chassis is labeled with a "II," your system is upgradeable to the Quad-Core
®
®
Intel
Xeon
Processor 5300 series when these processors become available. See support.dell.com for
information on processor availability and upgrade options for your system.
Memory Mirroring With Fully Buffered DIMMs
As in the previous generation of memory mirroring technology, mirroring with fully buffered DIMMs
(FBDs) provides enhanced protection from memory failure events, enabling a more robust computing
environment. The new generation of FBD memory mirroring provides a higher level of system reliability
by providing protection against more complex, but rare, failures such as a multi-bit error on a pair of
FBDs within a mirrored branch.
However, a limitation in the chipset prevents the FBD memory mirroring from recovering from a small
set of failures that could occur in specific circumstances. These circumstances include rare Advanced
Memory Buffer (AMB) hardware failures or a possible short circuit in the FBD connector. Although
unlikely, this means that FBD memory mirroring cannot assure failover in all possible circumstances.
System Message Update
Table 1-1 lists a new system message and the probable cause and corrective action when the message
appears. System messages appear on the screen to notify you of a possible problem with the system.
CAUTION:
Only trained service technicians are authorized to remove the system cover and access any of
the components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
Information Update
3