Help!! :( onboard Lan problem

YoungRogue · 28 Jun 2010 at 14:41

Asus M4A89GTD PRO intermittent lan problem. Help mr -VK-??

Just put my pc back together after installing a new motherboard, memory and cpu. I have an Asus M4A89GTD PRO but it will not recognize my Ethernet cable

I have the lead plugged in the back but none of the lights either side of it are flashing, the drivers are installed and i have disabled it and reinstalled them a few times and as far as windows is concerned it is working fine. I have windows 7 ultimate 32bit installed at the mo and when I click on trouble shooting it tells me there isnt an ethernet cable plugged in, but if I pull it out and plug it into my macbook it works fine. Any ideas??

Philtor · 28 Jun 2010 at 14:47

Try a CMOS reset perhaps?

Philtor · 28 Jun 2010 at 14:50

P.S Did you do a clean install after fitting the new Motherboard?

YoungRogue · 28 Jun 2010 at 14:52

i removed the old drivers beforehand, but no is not a fresh install, my old motherboard was asus though..

Philtor · 28 Jun 2010 at 14:54

Hmm it's always a good idea to do a clean install after changing the system board unless you are replacing one with the exact same Chipset. Try a CMOS reset first and if you have no joy then I would be tempted to do a clean install.

UKDTweak · 28 Jun 2010 at 14:56

Does your board have more than 1 Nic, if so, check 1 is not disabled in the bios or that you are using the 1 that is enabled?

YoungRogue · 28 Jun 2010 at 14:56

how do I reset the cmos? its a brand new mobo so im guessing it should be replaced if faulty?

YoungRogue · 28 Jun 2010 at 15:00

it has only one lan port and I have checked in the bios that it is activated.

Philtor · 28 Jun 2010 at 15:02

Generally, to do a CMOS reset you unplug your system and remove the CMOS battery. Then shift the jumper on the CLRTC pins from 1+2 to 2+3. Then hold in the reset button on the front of your case for 30 seconds. Then shift the CLRTC jumper back to pins 1+2, replace the battery, plug in and start the system. If the clearing was successful you will be asked to set the time and date.

Philtor · 28 Jun 2010 at 15:04

Again but - if this has no effect I would try a clean install before trying to RMA the board.

YoungRogue · 28 Jun 2010 at 15:35

well i started to install xp on a spare hard drive, and i notices the light started flashing on the lan port, so i turned it off and put my windows 7 drive back in and it works now :S how odd, very relieved tho!! thanks for the help

YoungRogue · 29 Jun 2010 at 09:12

Now its doing it again

i think its a hardware fault as it seems to be hit or miss as to whether the lights come on the port at the back. Any ideas?? Have reset the settings on the mobo and done a fresh install of win 7 x64

Philtor · 30 Jun 2010 at 12:15

RMA it YoungRogue. Brand new board shouldn't be doing that.

YoungRogue · 1 Jul 2010 at 09:59

Have put it in for an rma, is being collected on monday