Owners Manual
Table Of Contents
- Precision 3640 Tower Service Manual
- Contents
- Working on your computer
- Technology and components
- Major components of your system
- Disassembly and reassembly
- Recommended tools
- Screw list
- Cover
- PSU hinge
- Bezel
- Memory module
- Hard drive
- Optical drive
- Graphics card
- WLAN module and SMA antenna
- IO panel
- Power button module
- Speaker
- Intrusion switch
- Solid state drive
- Coin cell battery
- Power supply unit
- Front fan
- Top fan
- Heatsink assembly
- Voltage regulator heat sink
- Processor
- System board
- Troubleshooting
- Getting help and contacting Dell
- Optional IO card
- Cable cover
- Dust filter
- Chassis rubber feet
3. RAID 5 (Striping with Parity):
In this RAID level, data is stripped into blocks and spread across three or more storage devices. Each block contains the
data and a parity for fault tolerance. In an event of a drive failure, the parity helps build the lost piece of data. To further
enhance the write performance, IRST uses Volume Write-Back Cache and Coalescer. The Volume Write-Back allows writes
to be buffered, and Coalescer allows multiple write requests to be combined to reduce the overhead on parity calculation.
4. RAID 10 (Striping and Mirroring)):
RAID 10 is created, mirroring (RAID 1) the stripped (RAID 0) array. This RAID level uses four or more storage devices. It has
great reliability like a RAID 1 and performance like a RAID 0.
RAID-ready
A RAID-Ready configuration allows migration from one non-RAID SATA drive to a SATA RAID configuration.
NOTE: A reinstall of the operating system is not required for the migration.
A RAID-Ready computer must meet the following requirements:
● Supported Intel Chipsets
● One Serial ATA (SATA) hard drive
● RAID controller enabled in the computer setup
● BIOS that includes the IRST option ROM
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Technology and components