5 Tips To Make Windows 7 Faster

Install Dell drivers and utilities

 Notice: Some devices may not work if they are not installed in the proper order, please      use the list below and install the drivers in the proper order.

1. Desktop System Software (DSS) or Notebook System Software (NSS) - A vital utility that provides critical updates and patches for the operating system. If you are reinstalling the operating system or updating all the computer’s drivers, it is imperative that this software be installed first. Currently, the DSS and NSS are not required for systems with Windows Vista installed.
2. Chipset - Helps Windows control system board components and controllers. 
3. Video Adapter - Enhances video performance. 
4. Network Interface Card (NIC) - Enhances the network controller for Internet or network access. 
5. Audio Adapter - Enables and enhances the audio controller. 
6. Modem - Allows dialup capability. 
7. Wireless Network Card - Enables and enhances the wireless network controller. 
8. Touchpad, Pointer, Trackstick, Mice, and Keyboards - Enhances the pointing device features. 
9. Other Devices 
   • Bluetooth® Module
   • Dell Wireless Mobile Broadband Cards
   • PCMCIA/Smartcard controller

ML4824: A Novel Method for an Off-Line PFC-PWM Combo Controller

   One  of the most undesirable phenomena experienced by utility companies is the high harmonic content  of the line current. The harmonic content  of this line current  tends to cause  transformer overheating at the substations,  which are responsible for providing power  to all sectors of a given area. For three-phase distribution,  neutral  currents will flow in the presence of these harmonics. For single- phase  distribution,  the narrow  conduction angle demanded by capacitive input filters in switching  power converters  causes  high harmonic content  in the current waveform,  resulting in lower operating  efficiency.

   A viable solution  to this problem  is the inclusion  of a power  factor correction (PFC) stage to facilitate more efficient power  usage as well as lowering  the harmonic content  of the line current. The most popular  topology  for this task is the switched-mode boost converter.  Here the boost converter  stage is inserted  between the input rectifier and the bulk storage capacitor. This forces the input current  to be in phase  with the input voltage and provides  a boosted  D.C. voltage reservoir for the

following power  stage.

   Micro Linear‘s ML4824 Combo  Controller  IC is an integrated  solution  for systems benefitting  from the advantages made  possible by synchronizing the 2 cascaded power  stages. In this application note the differences  between the traditional  combo  modulation scheme  (unsynchronized or trailing edge modulation)  and the ML4824’s leading/trailing edge modulation scheme are explained. A typical application is shown  and test results are compared with the traditional  approach. Then, a detailed  look is taken inside the ML4824 and key design formulas are reviewed  which  will enable  users to begin their own design.

For further information, view application note online:  ML4824 (pdf | 12 pages)

2SA2113: Medium Power Transistor

Features

1) High speed switching. (Tf : Typ. : 20ns at IC = -2A)

2) Low saturation voltage, typically

(Typ. : -200mV at IC = -1A, IB = -0.1A)

3) Strong discharge power for inductive load and capacitance load.

4) Complements the 2SC5916

Applications

     Low frequency amplifier

     High speed switching

  Structure

       PNP Silicon epitaxial planar transistor

For further information, view it online: 2SA2113 (pdf | 4 pages)

X28C256: 5 Volt, Byte Alterable EEPROM 32K x 8 Bit

DESCRIPTION

The X28C256 is an 32K x 8 E2PROM, fabricated with Xicor’s proprietary, high performance, floating gate CMOS technology. Like all Xicor programmable non- volatile memories the X28C256 is a 5V only device. The X28C256 features the JEDEC approved pinout for byte- wide memories, compatible with industry standard RAMs.

The X28C256 supports a 64-byte page write operation, effectively providing a 78 s/byte write cycle and en- abling the entire memory to be typically written in less than 2.5 seconds. The X28C256 also features DATA and Toggle Bit   Polling, a system software support scheme used to indicate the early completion of a write cycle. In addition, the X28C256 includes a user-optional software data protection mode that further enhances Xicor’s hardware write protect capability.

Xicor E2PROMs are designed and tested for applications requiring extended endurance. Inherent data re- tention is greater than 100 years.

FEATURES

• Access Time:  150ns

• Simple Byte and Page Write

— Single 5V Supply

— No External High Voltages or VPP Control Circuits

— Self-Timed

— No Erase Before Write

— No Complex Programming Algorithms

— No Overerase Problem

• Low Power CMOS:

— Active:  60mA

— Standby: 200  A

• Software Data Protection

— Protects Data Against System Level Inadvertent Writes

• High Speed Page Write Capability

• Highly Reliable Direct Write™ Cell

— Endurance: 100,000 Write Cycles

— Data Retention: 100 Years

• Early End of Write Detection

— DATA Polling

— Toggle Bit Polling

For further information, view it online: X28C256 (pdf | 24 pages)