RTL8139 works in 64bit ?
 

My ethernet card's chip is RTL8139, and it works perfectly in 10.5,
but until I installed Snow Leopard,it just works in 32bit mode but quite slow,
if I change to 64bit, there's no ethernet card could be detected.
I have searched this problem for a couple days, but it seems no solution about it.

Does anybody know how to solve it ? Thanks so much!!!:'(

my solution
 

[ OSX86 : ( http://cid-8b65993ef55cf014.skydrive...Snow%20Leopard ) (Drivers > Lan & Wireless) ]

Hi.

Replace the AppleRTL8139Ethernet.kext from the Original IONetworkingFamily.kext with the AppleRTL8139Ethernet.kext from the OSX86 site.

Location : /System/Library/Extensions/IONetworkingFamily.kext/Contents/Plugins/AppleRTL8139Ethernet.kext

And then
Put your modified IONetworkingFamily.kext into /S/L/E.
Run "Kext Utility".
Reboot.

I am using a 10a432-64bit mode. ( ASUS P5K[ICH9] + Chameleon2 RC3 r658 )

RTL8139Family_64bit_10a432.zip

This works! I added a PCI Realtek 8139D NIC. Now both Built-in (DSDT patched) + Secondary PCI NIC works in 64-bit.

Thanks

works for me
 

Tried several different approaches but this worked even without a restart, which is weird.

certainly saves another tenner on a different card.

atom