Asus Q400A driver and firmware

Drivers and firmware downloads for this Asus item

We have a direct link to download Asus Q400A drivers, firmware and other resources directly from the Asus site. To protect our site from spammers you will need to enter the verification characters below in order to access the download link.

Q400A driver download page on the Asus site
Access Asus Driver Download Link

(case insensitive)

Related Asus Q400A Manual Pages

Download the free PDF manual for Asus Q400A and other Asus manuals at

  • User's Manual for English Edition - Page 3

    ... Devices...54 Flash Memory Card Reader...54 Optical Drive ...55 Hard Disk Drive...58 Memory (RAM)...60 Connections...61 Network Connection...61 Wireless LAN Connection (on selected models)...63 Windows Wireless Network Connection...65 Bluetooth Wireless Connection(on selected models)...67 USB Charger+...70 Appendix ...
  • User's Manual for English Edition - Page 15

    ... navigation in the Windows operating system. Touchpad The touchpad is a pointing device that provides the same functions as a desktop mouse. A software-controlled scrolling function is available after setting up the included touchpad utility to allow easy Windows or web navigation. 6 Notebook PC User Manual 15
  • User's Manual for English Edition - Page 18

    ... and configures CMOS accordingly during the POST (Power-On-Self-Test) process. There is no hardware or software (including BIOS) setup required after the memory is installed. Visit an authorized service center or retailer for information on memory upgrades for your Notebook PC. Only purchase expansion modules from authorized retailers...
  • User's Manual for English Edition - Page 21

    ... optical drive eject has an electronic eject button for opening the tray. You can also eject the optical drive tray through any software player or by right clicking the optical drive in Windows "Computer" and selecting Eject. Optical Drive Emergency Eject The emergency eject is used to eject the optical drive tray ...
  • User's Manual for English Edition - Page 30

    ... turn ON the Notebook PC, it will first run through a series of software-controlled diagnostic tests called the Power-On Self Test (POST). The software that controls the POST is installed as a permanent part of the Notebook PC's architecture. The ... that the hard disk is correctly detected and ready for the installation of a new operating system. 30 Notebook PC User Manual
  • User's Manual for English Edition - Page 31

    ... bootup, backup your data immediately and run Windows disk checking program. To run Window's disk checking program: click Start > select Computer > right-... Now > click Start. You can also select "Scan ...sectors" for more effective scan and repair but the process will run slower. IMPORTANT! If warnings are still given during bootup after running a software disk checking utility, you should ...
  • User's Manual for English Edition - Page 34

    ...hibernation modes. Actual behavior of the power switch can be customized in Windows Control Panel "Power Options." For other options, such ... system, you may be prompted to restart the system. Some installation processes will provide a dialog box to allow restart. To restart the system manually, choose Restart....after turning OFF your Notebook PC before turning it back ON. 34 Notebook PC User Manual
  • User's Manual for English Edition - Page 38

    ...internal wireless LAN or Bluetooth (on selected models) ON or OFF with an on-screen-display. When enabled, the corresponding wireless indicator will light. Windows software settings are necessary to use the wireless LAN or Bluetooth. f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f1 fn f2 f3 Keyboard Light Down Icon (F3) ...
  • User's Manual for English Edition - Page 40

    ...display (OSD). Fn+V (on selected models): Toggles "Life Frame" software application. For some models, this function is available only when you ... two special Windows keys on the keyboard as described below. The key with the Windows Logo activates the Start menu located at the bottom... properties menu and is equivalent to pressing the right mouse button on a Windows object. 40 Notebook PC User Manual
  • User's Manual for English Edition - Page 45

    ... LAN. This indicator will light to show that the Notebook PC's built-in Bluetooth (BT) function is activated. When the built-in wireless LAN is enabled, this indicator will also light. (Windows software settings are necessary.) Capital Lock Indicator Indicates that capital lock [Caps Lock] is activated when lighted...
  • User's Manual for English Edition - Page 60

    ...during the POST (PowerOn-Self-Test) process. There is no hardware or software (including BIOS) setup required after the memory is installed. WARNING! Disconnect all the connected peripherals, any telephone or models. Refer to the previous chapter to locate the memory. Installing a Memory Card: Removing a Memory Card: 33 (This is only an example.) (This is ...
  • User's Manual for English Edition - Page 61

    Connections The built-in network cannot be installed later as an upgrade. After purchase, network can be installed as an expansion card. Network Connection Connect a network cable, with RJ-45 connectors on each end, to... connection to a network switching hub with "duplex" enabled. The software default is to use the fastest setting so no user-intervention is required. ...
  • User's Manual for English Edition - Page 73

    .... If updates or replacement of the support disc is necessary, contact your dealer for web sites to download individual software drivers and utilities. The support disc contains all drivers, utilities and software for all popular operating systems including those ... and features may not work until the device drivers and utilities are installed. Notebook PC User Manual A-3
  • User's Manual for English Edition - Page 77

    ...Unstable Cannot wake up from the hibernation. 1. Remove upgraded parts (RAM, HDD, WLAN, BT) if they were installed after purchase. 2. If not the case, try MS System ... center and ask an engineer for assistance. Hardware Problem - Keyboard / Hotkey The Hotkey (FN) is disabled. A. Reinstall the "ATK0100" driver from the driver CD or download it from the ASUS website. Notebook PC User Manual A-7
  • User's Manual for English Edition - Page 80

    ... to see if the problem is due to incompatible memory. 2. Un-install software applications. If you have installed software applications recently, they may not be compatible ...system. Try to un-install them in Windows Safe Mode. 3. Check your system for viruses. 4. Update the BIOS... Easy Flash in Windows or AFLASH in DOS mode. These utilities and BIOS files can be downloaded from the...
  • User's Manual for English Edition - Page 81

    ... your data to another location before recovering. CAUTION! DO NOT connect to the Internet before you have installed an anti-virus software and Internet firewall to protect yourself from viruses. Ensure that you install the "Intel INF Update" and "ATKACPI" drivers first so that hardware devices can be recognized. 6. If the problem ...
  • User's Manual for English Edition - Page 82

    Software Problem - BIOS Updating the BIOS. 1. Please verify the Notebook PC's exact model and download the latest BIOS file for your model from the ASUS website and save it in your flash disk drive. 2. Connect your flash disk drive to the Notebook PC and power on the Notebook PC. 3. Use the "Start Easy Flash" function on the Advanced page of the BIOS Setup Utility. Follow the ...
  • User's Manual for English Edition - Page 83

    ...Recovery Partition quickly restores your Notebook PC's software to its original working state. Before using the... files (such as Outlook PST files) to USB storage devices or to a network drive and make note... drive used to restore the operating system, drivers, and utilities installed on your Notebook PC at...[F9] during bootup. Press [Enter] to select Windows Setup [EMS Enabled]. Select the language you...
  • User's Manual for English Edition - Page 84

    ... and creates two new partitions "C" (40%) and "D" (60%). 6. Follow the onscreen instructions to complete the recovery process. Visit the ASUS website at for updated drivers and utilities. Using Recovery DVD (on selected models) Creating the Recovery DVD: 1. Double-click the AI Recovery Burner icon on the Window ...
  • User Guide for English Edition - Page 6

    ...facilitate a smoother transition from your previous operating system, read the system requirements below before upgrading to Windows® 8: Processor RAM Hard disk space Graphics card Screen resolution 1GHz or faster 1GB... 20 GB (64-bit) Microsoft DirectX9 graphics device with WDDM driver 1024 x 768 for Windows® apps 1366 x 768 for Snap feature NOTE...
Related Items

Get Help Online
Get immediate support for your Asus Q400A questions from

Recent Asus Q400A-related questions:

Asus Dying Instantly W/o Warning, Once A Week...
Hello, I have an Asus Q400A, windows 8, 8GB ram, I7. Computer worked fine for a few months. Then las...

Is This Computer Still Available?

How Can I Make An Asus A55vd Boot From A Cd Or A Pen Drive?
How can I make an ASUS A55VD boot from a CD or a Pen Drive?A55VD doesn't boot from CD neither Pen Dr...

Receive immediate support for Asus Q400A at

Contact Information
Complete Asus customer service contact information including steps to reach representatives, hours of operation, customer support links and more from

Complete Asus customer service phone numbers and contact information at

Corporate Office
Locate the Asus corporate office headquarters phone number, address and more at

Asus corporate office headquarters information at

Asus Manuals
Find free Asus Q400A manuals and user guides available at Try out our unique manual viewer allowing you to interact with manuals from directly within your browser!

Free Asus Q400A manuals and user guides at

Scoreboard Ratings
See detailed Asus customer service rankings, employee comments and much more from our sister site.

Find detailed Asus customer service ratings at