Dell Precision 3640 Tower, Руководство по обслуживанию

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Figure 3. Curved edge
Memory Errors
Memory errors on the system display 2,3 failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory
failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some
portable systems.
NOTE: The DDR4 memory is imbedded in board and not a replaceable DIMM as shown and referred.
Intel Rapid Storage Technology (Intel RST)
The following article provides an overview of the Intel Rapid Storage Technology application and its features:
Overview
Intel Rapid Storage Technology (IRST) is a hardware, firmware and, software-based RAID solution. IRST was previously known as Matrix
RAID. IRST allows for creation of two RAID volumes on a single RAID array where both the volumes can be of the same or different type.
IRST encapsulates newer level of protection with better performance, and low power consumption. IRST user interface simplifies creation
and management of storage assets.
The fault tolerance is averted using one of the following RAID levels:
1. RAID 0 (Striping):
Multiple storage devices are combined to what appears to be a single virtual drive. Data is arranged as blocks that are spread across
multiple storage devices using process called striping. RAID 0 uses Read/ Write capabilities of two or more storage devices in parallel,
enhancing performance. There is no redundancy, hence if any of the storage devices fails, the RAID has to be re-created.
2. RAID 1 (Mirroring):
Two storage devices are mirrored or duplicated to achieve redundancy and hence enhance reliability in an event of single drive failure.
The performance is that of a single drive.
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