check this other post out that may answer what you really want to do about the kext related process.

Leopard Hardware Comparability List !
by chival4ry on Fri Nov 09, 2007 10:06 pm

Hi, our informations (will) help ourselves. ^^

[My system]

o ASUS P5K STCOM [Mostly Good]
- Realtek ALC883, 8 channel High Definition Audio ( Patch - AppleAzaliaAudio.kext - only 2 channel works )
- Attansic L1, 10/100/1000 Mbps Ethernet ( No working - """I am using D-Link DFE 538TX PCI like Realtek 8139 )""""
- ICH9 (working)

o Intel Core2 Duo e6750 [Good]
o Nvidia 8600gt [Bad - No CI & QE]
o Segate SATA2 320GB x 2 [Good]
o LG Multi SATA DVD GSA H62L [Mostly Good]
o Samsung DDR2 1GB PC2 6400U CL x 2 [Good]
o Sparkletek ATX 450-PA [Good]
O My System 1 : E6750[good], 8600GT[mostly good] + 2600Pro[mostly good], Asus P5K[mostly good], Segate Sata2 320GB x2[good], LG DVD GSA H62L(sata)[good], D-Link DFE 538TX PCI[good]
( XxX 10.4.11 Rev1[good] , Kalyway 10.5.1[good] )
O My System 2 : p4 2.4c, Asus p4p 800, fx5600, Segate 80gbx2, Samsung 200gbx1, Realtek 8139

http://forum.osx86scene.com/viewtopic.php?f=3&t=2533