I will give you now some info the problem with non working Time Machine.
Time Machine is a very user friendly and easy to use Backup solution from Apple. The backup it takes, is connected to Computer which made the backup. You cannot use a TM-backup from Computer "A" to restore something on Computer "B". To identify the Computer TM uses the Ethernet-MAC-address of the built-in Ethernet. Every MAC-address is globally unique and every MAC from Apple has ethernet, so it can be used to identify a computer, if the ethernet port is built-in. An exchangeable PCI-card, like the Netgear GA311, does not help, because the card can be removed (loosed MAC-address) or changed (another, different MAC-address). So TM only works if it can find an internal, built-in ethernet port.
This was exactly the I got from TM. It couldn't find any built-in ethernet port, although the two Realtek 8111C are onboard and hence built-in. For some reason Mac OS X does not detect the as built-in. I don't known how Apple detects their own ethernet as built-in.
I flagged the first onboard ethernet port as built-in using device-properties in the Chameleon com.apple.Boot.plist. I made this device-property with EFIStudio. See here.
You can edit your DSDT to reflect your ether net as built in. Like so
AntwortenLöschenDevice (GIGE)
{
Name (_ADR, Zero)
Name (_SUN, 0x03)
Name (_PRW, Package (0x02)
{
0x0B,
0x04
})
Method (_DSM, 4, NotSerialized)
{
Store (Package (0x0A)
{
"built-in",
Buffer (One)
{
0x00
},
"location",
Buffer (0x02)
{
"1"
},
"device_type",
Buffer (0x09)
{
"ethernet"
},
"revision-id",
Buffer (0x04)
{
0x13, 0x00, 0x00, 0x00
},
"model",
Buffer (0x22)
{
"Realtek RTL8111B Gigabit Ethernet"
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}
}
}
The important part is to get the ID correct.
See this post for more good DSDT info: Won't fix all your problems but might help with some.
http://www.insanelymac.com/forum/index.php?showtopic=142434&start=100&p=1031230&#entry1031230