ASUS M2N-SLI Deluxe (2NIC's with same MAC)
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From: Peter Schubnell on 24 Nov 2006 10:52 Hello, after a CMOS-Reset (due to wrong memory parameter settings) the two build-in NIC's now have the same MAC-Address (04:4B:80:80:80:03). What can i do to get different MAC-Addresses again?
From: Paul on 24 Nov 2006 12:57 Peter Schubnell wrote: > Hello, > > after a CMOS-Reset (due to wrong memory parameter settings) the two > build-in NIC's now have the same MAC-Address (04:4B:80:80:80:03). > > What can i do to get different MAC-Addresses again? > On some previous Asus motherboards, the MAC address is recorded on one of the stickers on the motherboard. I see several stickers here: http://www.clockmehigh.com/cooler/screens/AM2/moboshots/IMG_8025.JPG This is an example of how it was fixed on an Nforce2 board. I have no idea how to fix it on your board. Perhaps Asus Tech Support can dream up a solution. http://www.nforcershq.com/forum/viewtopic.php?p=150240 The MAC address has to be stored *somewhere*. It could be contained in CMOS memory, but that is stupid, because removing the battery, means losing the data. It could also be stored in the BIOS flash chip, but if the chip is erased, the information can also be lost. In your case, it seems the info is in the CMOS for some reason. As otherwise, clearing the CMOS, should have resulted in the MAC address being restored from the flash chip. I don't think there are any other storage devices on the motherboard, at the hardware level. MAC addresses are supposed to be unique, and that is why Asus puts them on stickers, so each motherboard gets a different value. Paul
From: Peter Schubnell on 1 Dec 2006 07:56 Paul schrieb: > Peter Schubnell wrote: > >> Hello, >> >> after a CMOS-Reset (due to wrong memory parameter settings) the two >> build-in NIC's now have the same MAC-Address (04:4B:80:80:80:03). >> >> What can i do to get different MAC-Addresses again? >> > > On some previous Asus motherboards, the MAC address is recorded on one > of the stickers on the motherboard. I see several stickers here: > > http://www.clockmehigh.com/cooler/screens/AM2/moboshots/IMG_8025.JPG > > This is an example of how it was fixed on an Nforce2 board. I have > no idea how to fix it on your board. Perhaps Asus Tech Support > can dream up a solution. > > http://www.nforcershq.com/forum/viewtopic.php?p=150240 > > The MAC address has to be stored *somewhere*. It could be > contained in CMOS memory, but that is stupid, because > removing the battery, means losing the data. It could also > be stored in the BIOS flash chip, but if the chip is erased, > the information can also be lost. In your case, it seems the > info is in the CMOS for some reason. As otherwise, clearing > the CMOS, should have resulted in the MAC address being > restored from the flash chip. I don't think there are any other > storage devices on the motherboard, at the hardware level. > > MAC addresses are supposed to be unique, and that is why > Asus puts them on stickers, so each motherboard gets > a different value. > > Paul Thanks for your answer Paul. I have the original MAC's (before the "deadly" CMOS-reset)written down to paper, so, if i know a possibility, i could flash them back to *somewhere*. What i have found this far is following: with "awdflash {bios} /py/sn/cc/cd/cp/nvmac:XXXXXXXXXXXX/wb/e" (where XXXXXXXXXXXX is the MAC arrdess) someone can set the MAC-Address, but only on the first NIC. I've tried this, and it worked. What i'm searching now is: How can i set the MAC on the second NIC? Waiting for ideas/solutions...
From: John on 1 Dec 2006 09:16 Try opening a command window & type in "ipconfig /all" & hit enter As for where MAC address is stored .. it is hard-coded in contoller chip, it sure aint in bios anywhere If u dont see both LAN' in response to ipconfig, then it likely the controller is damaged On Fri, 01 Dec 2006 13:56:10 +0100, Peter Schubnell <peter.schubnell(a)gmx.de> wrote: > > >Paul schrieb: >> Peter Schubnell wrote: >> >>> Hello, >>> >>> after a CMOS-Reset (due to wrong memory parameter settings) the two >>> build-in NIC's now have the same MAC-Address (04:4B:80:80:80:03). >>> >>> What can i do to get different MAC-Addresses again? >>> >> >> On some previous Asus motherboards, the MAC address is recorded on one >> of the stickers on the motherboard. I see several stickers here: >> >> http://www.clockmehigh.com/cooler/screens/AM2/moboshots/IMG_8025.JPG >> >> This is an example of how it was fixed on an Nforce2 board. I have >> no idea how to fix it on your board. Perhaps Asus Tech Support >> can dream up a solution. >> >> http://www.nforcershq.com/forum/viewtopic.php?p=150240 >> >> The MAC address has to be stored *somewhere*. It could be >> contained in CMOS memory, but that is stupid, because >> removing the battery, means losing the data. It could also >> be stored in the BIOS flash chip, but if the chip is erased, >> the information can also be lost. In your case, it seems the >> info is in the CMOS for some reason. As otherwise, clearing >> the CMOS, should have resulted in the MAC address being >> restored from the flash chip. I don't think there are any other >> storage devices on the motherboard, at the hardware level. >> >> MAC addresses are supposed to be unique, and that is why >> Asus puts them on stickers, so each motherboard gets >> a different value. >> >> Paul > >Thanks for your answer Paul. > >I have the original MAC's (before the "deadly" CMOS-reset)written down >to paper, so, if i know a possibility, i could flash them back to >*somewhere*. > >What i have found this far is following: with > >"awdflash {bios} /py/sn/cc/cd/cp/nvmac:XXXXXXXXXXXX/wb/e" > >(where XXXXXXXXXXXX is the MAC arrdess) > >someone can set the MAC-Address, but only on the first NIC. I've tried >this, and it worked. >What i'm searching now is: How can i set the MAC on the second NIC? > >Waiting for ideas/solutions...
From: Rob on 1 Dec 2006 10:08 Peter Schubnell wrote: > > > Paul schrieb: >> Peter Schubnell wrote: >> >>> Hello, >>> >>> after a CMOS-Reset (due to wrong memory parameter settings) the two >>> build-in NIC's now have the same MAC-Address (04:4B:80:80:80:03). >>> >>> What can i do to get different MAC-Addresses again? >>> >> >> On some previous Asus motherboards, the MAC address is recorded on one >> of the stickers on the motherboard. I see several stickers here: >> >> http://www.clockmehigh.com/cooler/screens/AM2/moboshots/IMG_8025.JPG >> >> This is an example of how it was fixed on an Nforce2 board. I have >> no idea how to fix it on your board. Perhaps Asus Tech Support >> can dream up a solution. >> >> http://www.nforcershq.com/forum/viewtopic.php?p=150240 >> >> The MAC address has to be stored *somewhere*. It could be >> contained in CMOS memory, but that is stupid, because >> removing the battery, means losing the data. It could also >> be stored in the BIOS flash chip, but if the chip is erased, >> the information can also be lost. In your case, it seems the >> info is in the CMOS for some reason. As otherwise, clearing >> the CMOS, should have resulted in the MAC address being >> restored from the flash chip. I don't think there are any other >> storage devices on the motherboard, at the hardware level. >> >> MAC addresses are supposed to be unique, and that is why >> Asus puts them on stickers, so each motherboard gets >> a different value. >> >> Paul > > Thanks for your answer Paul. > > I have the original MAC's (before the "deadly" CMOS-reset)written down > to paper, so, if i know a possibility, i could flash them back to > *somewhere*. > > What i have found this far is following: with > > "awdflash {bios} /py/sn/cc/cd/cp/nvmac:XXXXXXXXXXXX/wb/e" > > (where XXXXXXXXXXXX is the MAC arrdess) > > someone can set the MAC-Address, but only on the first NIC. I've tried > this, and it worked. > What i'm searching now is: How can i set the MAC on the second NIC? > > Waiting for ideas/solutions... > Peter, I've had some luck with an older ASUS board, that had dual NIC's, by physically putting the 12 digit MAC (no : or -) into the Advanced Tab of the Properties page for the appropriate NIC, in Device Manager. It most likely currently has the "Not Present" block ticked under Network Address. I was able to clone a MAC into 3 different NIC's this way, although you can't obviously use all 3 simultaneously. Hopefully, that will work on your board as well. Rob
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