Files posted by holyfield
Works fine with HP Pavilion laptops.
Full pack with various installation options
Di you lost you Original AppleHDA?
Download original Original Yosemite 10.10 AppleHDA kext and restore it easily with some kexts installation tool.
HP ProBook Installer is an all-in one OS X post installation tool designed to enable boot from hard drive, and install support for audio, ethernet, WiFi, graphics (including full resolution VGA and HDMI) and bluetooth on HP ProBook notebooks.
Bundle for for running OSX Mavericks on Dell Latitude E5420
Processor: Intel 2nd Gen Core i3 i3-2330M / 2.2 GHz ( Dual-Core )
Max Resolution: 1366 x 768
Graphics Processor: Intel HD Graphics 3000 Dynamic Video Memory Technology