There are almost 40 downloads available for this model on Dell website, actually you doesn't need to download and install all of them. So here I listed what are the important drivers and which you need to download for your M14x. Note that this is a gaming laptop which the most recommended OS was Windows 7 64-bit. however you can also upgrade into Windows 8 which I will explained at the end of the post.
Windows 7 64-bit Drivers : (Install according to the order.)
Chipset:
Intel GS45 (Cantiga) Driver v9.1.1.1020
Download
Note: Storage - Choose one between Intel rapid storage technology or Intel Matrix storage manager, however I strongly recommend to use Intel Rapid Storage Technology.
Storage
Intel Matrix Storage Manager - Notebooks, v.8.9.4.1004, A00: Download
Intel Intel Rapid Storage Technology, v.9.6..0.1014, A01 : Download
Graphic - Nvidia
Nvidia Geforce GT335M, v 263.08 WHQL :Download
Nvidia Geforce GT555M 1.5/3.0GB, v 267.21 WHQL :Download
Graphic - Intel
Intel HD Graphic 3000 v15.21.13.64.2342
Download
Audio
Realtek ALC665, v.6.0.1.6083, A02
Download
Touchpad
Synaptics TouchPad, v.15.0.4, A01
Download
Card Reader
JMicron JMB380 - Card Reader and 1394, v.1.00.06.01
Download
Sensor
ST Microelectronics DE351DL Free Fall Sensor, v.1.06.08.47, A01
Download
Bluetooth
Dell Wireless 375 Bluetooth Module, v.6.3.0.6300,
Download
Broadband
Dell Wireless 5620 EVDO-HSPA Mobile Broadband Mini Card
Windows XP/Vista/7 : Download
Webcam
Dell Alienware Camera Frimware
Download
USB
Nec USB 3.0 Driver
Download
Note: Wireless - Base on your region, the wireless could be different so choose one base on your specification.
Wireless:
Intel� WiFi Link 6150/6250/6300 Driver : Download
Intel Intel(R) WiFi Link 1000 (V830R/CXW11) : Download
Atheros AR8151 - AW : Download
Bigfoot Networks Killer� Wireless-N 1103 a/g/n 3x3 MIMO : Download
(This version fix bugs with McAfee Security Software)
Windows 8/8.1 64-bit Drivers:
Before Upgrade into Windows 8 and 8.1, please Uninstall USB 3.0 drivers because it will make your USB 3.0 not function properly. Windows 8/8.1 will install in-box driver which compatible for Windows 8 and 8.1. Here is the driver you will need :
Chipset: Download from Intel
Graphic - Nvidia GT335M/GT555M : Download from Nvidia
Graphic : Intel HD 3000 : Download from Intel or Use Windows Automatic Updates
Audio : Download from Realtek
Others : Use windows 7 driver and install in compatibility mode for Windows 7. (Read here)
Windows 7 64-bit Drivers : (Install according to the order.)
Chipset:
Intel GS45 (Cantiga) Driver v9.1.1.1020
Download
Note: Storage - Choose one between Intel rapid storage technology or Intel Matrix storage manager, however I strongly recommend to use Intel Rapid Storage Technology.
Storage
Intel Matrix Storage Manager - Notebooks, v.8.9.4.1004, A00: Download
Intel Intel Rapid Storage Technology, v.9.6..0.1014, A01 : Download
Graphic - Nvidia
Nvidia Geforce GT335M, v 263.08 WHQL :Download
Nvidia Geforce GT555M 1.5/3.0GB, v 267.21 WHQL :Download
Graphic - Intel
Intel HD Graphic 3000 v15.21.13.64.2342
Download
Audio
Realtek ALC665, v.6.0.1.6083, A02
Download
Touchpad
Synaptics TouchPad, v.15.0.4, A01
Download
Card Reader
JMicron JMB380 - Card Reader and 1394, v.1.00.06.01
Download
Sensor
ST Microelectronics DE351DL Free Fall Sensor, v.1.06.08.47, A01
Download
Bluetooth
Dell Wireless 375 Bluetooth Module, v.6.3.0.6300,
Download
Broadband
Dell Wireless 5620 EVDO-HSPA Mobile Broadband Mini Card
Windows XP/Vista/7 : Download
Webcam
Dell Alienware Camera Frimware
Download
USB
Nec USB 3.0 Driver
Download
Note: Wireless - Base on your region, the wireless could be different so choose one base on your specification.
Wireless:
Intel� WiFi Link 6150/6250/6300 Driver : Download
Intel Intel(R) WiFi Link 1000 (V830R/CXW11) : Download
Atheros AR8151 - AW : Download
Bigfoot Networks Killer� Wireless-N 1103 a/g/n 3x3 MIMO : Download
(This version fix bugs with McAfee Security Software)
Windows 8/8.1 64-bit Drivers:
Before Upgrade into Windows 8 and 8.1, please Uninstall USB 3.0 drivers because it will make your USB 3.0 not function properly. Windows 8/8.1 will install in-box driver which compatible for Windows 8 and 8.1. Here is the driver you will need :
Chipset: Download from Intel
Graphic - Nvidia GT335M/GT555M : Download from Nvidia
Graphic : Intel HD 3000 : Download from Intel or Use Windows Automatic Updates
Audio : Download from Realtek
Others : Use windows 7 driver and install in compatibility mode for Windows 7. (Read here)
