System overview, System features – Dell PowerVault 775N (Rackmount NAS Appliance) User Manual
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System Overview
Dell™ PowerVault™ 775N Systems Service Manual
Your system is a high-speed, full-featured server that offers significant service and upgrade features.
System Features
One or two Intel® Xeon™ microprocessors with an internal operating speed of at least 1.8 GHz, a 512 KB cache, and a
front-side (external) bus speed of 400 MHz.
The microprocessors in your system provide NetBurst microarchitecture and Hyper-Threading Technology to
significantly increase microprocessor performance. Hyper-Threading allows one physical microprocessor to appear as
two logical processors to the operating system and application programs. Hyper-Threading also allows each
microprocessor to simultaneously execute multiple tasks using shared hardware resources.
These new technology features in the microprocessor provide the following for multithreaded tasks:
Enhanced system performance
Improved reaction and response time for the system
Increased number of users that a system can support
Increased number of transactions that can be executed simultaneously by the system
You can find more information about Hyper-Threading at developer.intel.com.
SMP, which is available on systems with two Xeon microprocessors. SMP greatly improves overall system performance
by dividing microprocessor operations between independent microprocessors. To take advantage of this feature, you
must use an operating system that supports multiprocessing.
NOTE:
If you decide to upgrade your system by installing an additional microprocessor, you must order the
microprocessor upgrade kits from the company where you purchased your system. Not all versions of the Intel
Xeon MP microprocessor will work properly as additional microprocessors. The upgrade kit contains the correct
version of the microprocessor as well as the instructions for performing the upgrade. All microprocessors must
have the same internal operating frequency and cache size.
A minimum of 512 MB of system memory. To add additional system memory, install identical pairs of DDR SDRAM
memory modules in the six memory module sockets on the system board.
Support for up to five 1-inch, internal Ultra3 SCSI hard drives with hot-plug capability.
A single, 1.44-MB, 3.5-inch diskette drive.
An IDE CD drive.
Up to two hot-pluggable, 500-W AC or DC power supplies in a 1 + 1 redundant configuration.
Hot-pluggable system cooling fans and two additional fans integrated in the power supplies.