i had it working on my d620-intel the driver had to be in s/l/e but on some models it would cause kp on boot unless there was a card inserted it was called IOPCMCIAFamily.kext if you look in Extra/storage/kextpacks/pcmcia you should find it.... use an app to install to s/l/e but be warned it might crash your install. WHATEVER YOU DO DO NOT TRY IT ON LION. IT'S A 16BIT LEGACY KEXT FROM OSX 10.4