U

Index

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u-pipes,
U.S. Robotics,
UART (universal asynchronous receiver transmitter) chips, 2nd
UART-free modems,
UDF (Universal Disk Format) file system,
UDMA (Ultra-DMA),
     CD/DVD drives
     Mode 2
     Mode 4
     Mode 5
     UDMA/66
UL (Underwriters Laboratories)
     power supply safety certifications
     surge protector standards
ULi chipsets
     Aladdin P4 (M1671)
     Aladdin Pro 4
     Aladdin Pro 5
     Aladdin Pro II
     Aladdin TNT2
     Athlon 64
     Athlon XP
     M1681/M1663
     M1685
     Pentium 4
     ULi M1687
     ULi M1695
     ULiMagik1
Ultra-ATA,
Ultra-DMA [See UDMA (Ultra-DMA),.]
Ultra-X, Inc.,
UMA (unified memory architecture),
UMA (Upper Memory Area),
     adapter ROM
     host adapter BIOS
     IPL ROM
     motherboard BIOS
     shared memory
     video adapter BIOS
     video RAM
unbranded media (CD-R),
unbuffered DIMMs (dual inline memory modules),
unbuffered memory modules,
Underwriters Laboratories [See UL (Underwriters Laboratories).]
undetected external modems, troubleshooting,
undetected tape drives, troubleshooting,
Unicode [See eSupport,.]
Unicomp keyboards,
unified memory architecture (UMA),
uninterruptible power supply (UPS),
UNIVAC (Universal Automatic Computer), 2nd
universal asynchronous receiver transmitter (UART), 2nd
Universal Disk Format (UDF) file system,
Universal DSL (digital subscriber line),
Universal Peripheral Interface (UPI),
universal power supplies,
Universal Serial Bus [See USB (universal serial bus),.]
unmanaged hubs,
unshielded twisted-pair (UTP) cables,
     building
     Category 3
     Category 5
     Category 5e
     Category 6
     Category 7
     crossover cables
     wiring standards
updates
     CD/DVD firmware
         determining current version
         firmware installation
         troubleshooting
         when to update
     processor microcode
upgrades
     analog modems
     dial-up modems
     LPX motherboards
     parallel ports
     processors
         486 processors
         benchmarks
         DX2/OverDrive processors
         DX4 processors
         maximum speeds
         Pentium OverDrives 2nd 3rd
     proprietary-design motherboards
     RAM (random access memory)
         dual-channel memory
         higher-capacity modules
         upgrade options and strategies
     ROM BIOS
         advantages of
         BIOS dates
         chip replacements
         CMOS RAM addresses
         CMOS RAM backups
         CMOS RAM diagnostic status codes
         flash ROM recovery
         flash ROM upgrades
         IML (Initial Microcode Load)
         keyboard-controller chips
         obtaining updates
         prerequisites
         version information
     system disassembly
     video adapters
     Y2K issues
UPI (Universal Peripheral Interface),
uplink ports,
Upper Memory Area [See UMA (Upper Memory Area),.]
upright mouse,
UPS (uninterruptible power supply),
USB (universal serial bus),
     adapters 2nd
     advantages of
     audio processors
     cables
     CD/DVD drives
     compared to IEEE 1394
     connectors
         color-coding
         keyboard connectors
         pinouts
         port connectors
         Series A
         Series B
     drivers
     enabling
     functions
     game ports
     hubs
         keyboard hubs
         root hubs
         self-powered hubs
     IRQs (interrupt requests)
     keyboards
         hubs
         requirements
         USB Legacy support
     keychain drives
     legacy USB support 2nd
     legacy-free PCs
     modem connections
     mouse interfaces
     mouse interrupt conflicts
     NRZI (non-return to zero) data encoding
     PnP (Plug and Play)
     ports
         configuration
         connectors
         file transfers
         high-speed serial port cards
         linking systems with
         locations
         multi-I/O cards
         null modem cables
         onboard USB ports
         shared interrupts
         Super I/O chips
         testing
         UART (Universal Asynchronous Receiver/Transmitter) chips
     resource conflicts
     self-identifying peripherals
     serial mouse connections
     speed
     support for
     troubleshooting
     USB 2.0
     USB On-The-Go
     USBready
USB Configuration menu (BIOS Setup),
USBready,
user passwords,
utilities [See also tools; wizards.]
     automatic disk installation programs
     Calibrate
     CD-burning software
     DFT (Drive Fitness Test)
     Disk Manager
     DISKPART 2nd
     FDISK 2nd
         assigning drive letters
         limitations
         partitioning hard drives
     FORMAT 2nd 3rd
     HWINFO
     IDEDIAG
     Micro-Scope
     processor-testing software
     SpinRite
     tape drive backup software
     USBready
     XCOPY
     XCOPY32
UTP (unshielded twisted-pair) cables,
     building
     Category 3
     Category 5
     Category 5e
     Category 6
     Category 7
     crossover cables
     wiring standards