Continue installing Mac - Built-in Network Card

for ASUS P5KPL-CM ACPI BIOS REVISION 0514
CPU : Intel Core 2 Duo E8500 @ 3.16
Kingston DDR 2 800
NVIDIA 9400GT PCIE 512mb 128bit

No Network Card - Solution

http://www.insanelymac.com/forum/index.php?showtopic=144020&st=0

If that does not work then you can do this manual method

1. Download this and extract it : AttansicL1eEthernet.zip ( 149.86K ) Number of downloads: 228

2. Open Terminal, type in the path where you have extracted the folder like the example shown below and press Enter

Example: cd /Users/Robert/Downloads/AttansicL1eEthernet/

3. Now type sudo sh installrelease.sh and press Enter
4. Ready to go....