Atheros 8121 ethernet controller says gigabit on the box (Asus P5Q

[2muchreality]

When I checked then it was said that the Asus P5Q motherboard will have 1000 megabits that is equal to gigabyte ethernet controller but it is only showing up 100 megabits? I am running Windows XP with Service Pack 3 on this board with the latest driver loaded and theer are not any other kind of problems, but just this one? Can anyone confirm the same? Thank you

[Gonzo]

I think that for gigabyte to work you will need to have an ethernet cable with 8 wires in it and there are some cheap cables that only have 4 wires inside the cable as well 8 pin connectors. So, it will not detect gigabyte until 4 pairs of wires are present and working.

[2muchreality]

Do you mean to say that it have to be Cat5 cable because thats the cable that came with my motorola cable modem. Since the cable says Cat5 on it and also says that it has 4 pairs, but the manual says the amber LED on represents 1000 megabits and the LED is on. So, should I try a new cable?

[Gonzo]

Did you ensure that the device you are trying to connect to have a gigabyte interface? Incase the device at the other end of the cable is 100BT, then both ends run 100BT and will not run more than that. For a GbE link, both ends need a GbE chip, and you need a cable with eight wires. There is no reason for a cable modem or ADSL modem, to have a GbE interface. More likely to be 10/100BT.