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Dell Tech Notes 2 (Common Industry
Standard Client Technology)
((Battery)) - correct answer Battery Types - correct answer 4-Cell Primary Lithium-Ion Battery 6-Cell Lithium Ion Battery 8-Cell Lithium-Ion Primary Battery 9-Cell Lithium-Ion Primary Battery ((Power Adapter)) - correct answer Power Adapters for Laptops - correct answer 1. AC Adapter with LED on brick
- AC Adapter with LED on DC Tip
- AC Adapter with no LED ((Processor (CPU))) - correct answer Overview - correct answer The Central Processing Unit (CPU) is also known as the processor or microprocessor. The CPU is responsible for performing a sequence of instructions of a program by performing basic arithmetic, logical, and I/O operations specified.
Some manufacturers of processors: Intel, AMD, Qualcomm, NVIDIA, IBM, Samsung, Motorola, hp ((Thermal Heat Sink)) - correct answer
Overview - correct answer A heatsink is a passive heat exchanger that transfers the heat that is generated by an electronic or a mechanical device to a fluid medium, often air, or a liquid coolant. This heat is dissipated away from the device to regulate its temperature at optimal levels.
Usage: In systems, heatsinks are used to cool central processing units or graphics processors. Design: A heatsink is designed to maximize its surface area in contact with the cooling medium surrounding it, such as the air. Performance: Air velocity, choice of material, protrusion design, and surface treatment are factors that affect the performance of a heatsink. Material: A heatsink is made out of Copper and/or Aluminum. Removing the Heatsink Assembly - correct answer Here is the procedure to remove Heatsink assembly: x Remove the base cover and battery. x Disconnect the fan cable. x Remove the screws that secure the heatsink assembly to the system and the system board [1, 2].
To remove the heatsink: x Remove the screws that secure the heatsink assembly to the system board [1, 2, 3, 4]. Remove the screws that secure the heatsink to the system board in the order of the callouts shown [1, 2, 3, 4]. x Lift the heatsink assembly from the system board [5]. ((System Fan)) - correct answer Overview - correct answer A system fan is any fan inside or attached to a system chassis used for active cooling. As processors, graphic cards, RAM, and other components in systems have increased in speed and power consumption, the amount of heat that is produced by these components has also increased. ((Chipset)) - correct answer
DDR3 also allows for chip capacities from 512 MB to 8 GB. This ability in effect allows for memory modules of up to 16 GB in size. Some features: Higher speeds, Doubled prefetch buffer, On-Module termination, Read/Write leveling, Reduced voltage requirement
DDR3L The "3L" in DDR3L stands for low-voltage. JEDEC introduced two low-voltage standards. The DDR3L standard is 1.35 V and has the label ''PC3L'' for its modules.
The DDR4 SDRAM device is an evo Portable DDR Memory Comparison - correct answer A SO-DIMM, SODIMM, or small outline dual in-line memory module is a type of system memory built using integrated circuits. SODIMM is a smaller alternative to a DIMM, being roughly half the size of regular DIMMs. ((Display)) - correct answer Overview - correct answer A display device is an output device for presentation of information in visual or tactile form. The display provides instant feedback by showing you text and graphic images as you work or play. Both analog and digital displays exist. Touch and Non-Touch - correct answer With touch-intuitive operating systems, the possibility of adding touch screen as an input device has become a reality. The touch screen allows the users to interact with what is being displayed without the need of additional input device like mouse or touchpad. It can be operated by stylus or fingers with single- or multi-touch gestures. The touch screen is a thin transparent layer which reads the input and send the signals to a touch control board. It can either be a resistive or capacitive touch technology. Resistive touch screens register input when pressure is applied while capacitive touch screens sense conductivity. Touchscreen is ideal for notebook, 2-in-1, and All-in-One. Display Bezel - correct answer The LCD consists of a panel, bezel, back cover, and digitizer as well for touch screen systems. The bezel is designed to accommodate a
camera, LED, microphone, privacy cover (for the camera), and, in some systems, a magnet for Hall-sensors (used for proximity switching to allow for different sleep states). ((Camera)) - correct answer Overview - correct answer A webcam is a video camera that feeds or streams its image in real time to or through a system unit to a system network. Most of Dell notebooks and All-in-Ones house an integrated camera. The camera specifications, resolution that is supported, and diagonal viewing angle vary by system model. ((HALL sensor (Reed switch))) - correct answer Overview - correct answer Notebook systems use a HALL effect sensor to detect when the LCD lid is closed and the sensor turns off the display. The HALL sensor on the I/O mezzanine card is used to engage the corresponding HALL sensor and its magnet in the display assembly when the LCD lid is in the closed position. ((Storage)) - correct answer Overview - correct answer Computer data storage is a technology consisting of system components and recording media that are used to retain digital data. There are two types of storage devices that are used with systems: @A primary storage device, such as RAM and ROM @A secondary storage device, like a hard drive, Blue-Ray /DVD and others. What Is RAID? - correct answer RAID stands for Redundant Array of Independent Disks. It is essentially two or more hard drives that are configured to work as a single virtual disk. How Does RAID Work? - correct answer The controller holds the RAID configuration for the drives and presents them to the operating system as a single drive.
Redundancy - correct answer You have more of something than you need. This is typically at the component level. For RAID, this means that you have extra hard drives in the configuration. Most RAID systems are considered Fault Tolerant and they use Redundancy of components to achieve this. Fault Tolerance - correct answer The ability to tolerate a fault. This allows for the continuation of service despite a fault. As a system, most RAID arrays are Fault Tolerant to some degree through the use of Redundancy. Hot Spare - correct answer A drive physically attached to the controller and left in 'stand-by' mode. Mirror - correct answer The replication of data to two or more disks. Stripe - correct answer Disk striping is the process of dividing a body of data into blocks and spreading the data blocks across multiple storage devices (hard drives) Raid Level Overview - correct answer Raid 0- Disk striping Raid 1- Disk mirroring Raid 5- Striping with distributed parity Raid 6- Striping with double distributed parity Raid 10- Striped mirrors Raid 50- Multiple RAID 5 sets striped together RAID 60- Multiple RAID 6 sets striped together What are the benefits of RAID 5? - correct answer Highly efficient use of drive space Simultaneous read of multiple drives In RAID 6, parity is striped across the equivalent of how many drives? - correct answer 2
2.5" SSD SATA - correct answer SSD is a storage device different from the traditional hard disk drive (hard drive) which uses magnetic-coated platters to store and retrieve data.
higher resistance to physical shock, silent operation, quicker access time and lower latency NVMe M.2 SSD - correct answer NVMe is an acronym for Non-Volatile Memory express (data transfer protocol similar to SATA, AHCI, IDE, or PCIe), and M.2 is a form factor specification supporting interfaces such as SATA, AHCI, PCIe. Optane Memory - correct answer Optane memory is a system acceleration solution. It is NOT cache but a form of memory media, used along with the Intel Rapid Storage Technology (IRST) driver.
Optane memory media is placed between the processor and slower SATA-based storage devices (hard drive, SSHD, or SATA SSD)
Optane will store commonly used files
The IRST application pairs Optane memory and storage (hard drive) into one virtual drive visible to the operating system with an optimized system interconnect. How Does Optane Work? - correct answer Intel® Optane™ memory can accelerate any SATA-based storage device that is installed in a seventh generation Intel Core-I processor and Chipset-based platform that is designated as Intel® Optane™ memory ready. No Boot Errors - correct answer Reasons for "No Boot errors" @When the Optane fails. @When there is a Slow drive which has failed. @There would be No 5MB partition. @If a customer did not install Optane Utility from the Dell website.
Realtek High Definition (HD) Audio - correct answer Supports all Realtek HD Audio Codec, delivering comparable playback quality to consumer-electronic audio devices. Conexant - correct answer The Conexant CX20671 is a 24-bit Audio codec that meets performance and function requirements for Microsoft WLP (Windows Logo Program) The Conexant CX20672 is a High Definition Audio Codec that exceeds the WLP4. (Windows Logo Program) audio requirements for Windows 7 systems. IDT Audio - correct answer The 92HD87 single-chip audio system is a low-power optimized, high fidelity, 4-channel audio codec with integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator. Cirrus Logic - correct answer The Cirrus Logic CS4213 is a highly integrated stereo low-power HD Audio Codec featuring a 192 kHz DAC, an ADC with 2-to-1 analog input, a digital microphone interface, PWM speaker drivers and a ground centered Headphone driver. ((PSU)) - correct answer PSU Overview - correct answer The Power Supply Unit (PSU) supplies power to internal components of a system and are predominantly used on Desktop systems. Varies in: Physical Size Wattage Connection Types Diagnostic Capabilities ((WLAN and WWAN)) - correct answer WLAN - correct answer A wireless local area network (WLAN) is a wireless system network that links two or more devices using a wireless distribution method (often spread-spectrum or OFDM radio) within a limited area such as a home, school, system laboratory, or office building.
WWAN - correct answer A wireless wide area network (WWAN), is a form of wireless network. The larger size of a wide area network compared to a local area network requires differences in technology. Wireless networks of all sizes deliver data in the form of telephone calls, web pages, and streaming video. ((USB)) - correct answer USB Overview - correct answer Universal Serial Bus (USB) simplifies the connection between host system and peripheral devices such as mouses and keyboards, external hard drive or optical devices, Bluetooth and many more peripheral devices. ((HDMI)) - correct answer HDMI Overview - correct answer High-Definition Multimedia Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ((Bluetooth (BT))) - correct answer Bluetooth Overview - correct answer Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices, and building Personal Area Networks (PANs). Review Points - correct answer Different types of power adapters. Types of battery. Features of a processor. Kinds of memory. Types of display. Features of touch and nontouch displays. Difference between WLAN and WWAN. Types of USB.
