Why Onboard LAN MAC Address can change automatic?

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   When having problem with diskless system and so difficult to make boot from onboard LAN on Asrock H110-DVS i tried disable CSM on BIOS. And after save and quit the motherboard have 3 short beeps no display, I power off and disconnect the Power cord and battery. After Power On i realize the MAC Address change automatic from 70:85:XX:XX:XX:XX Become D0:50:XX:XX:XX:XX. How can the MAC address change by it self? Can i use it without a problem?

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d3kilo Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 14 Aug 2017 Location: Bandung Status: Offline Points: 9	Post Options Post Reply Quote d3kilo Report Post Thanks(0) Quote Reply Topic: Why Onboard LAN MAC Address can change automatic? Posted: 16 Aug 2017 at 4:58am
	When having problem with diskless system and so difficult to make boot from onboard LAN on Asrock H110-DVS i tried disable CSM on BIOS. And after save and quit the motherboard have 3 short beeps no display, I power off and disconnect the Power cord and battery. After Power On i realize the MAC Address change automatic from 70:85:XX:XX:XX:XX Become D0:50:XX:XX:XX:XX. How can the MAC address change by it self? Can i use it without a problem?

d3kilo Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 14 Aug 2017 Location: Bandung Status: Offline Points: 9	Post Options Post Reply Quote d3kilo Report Post Thanks(0) Quote Reply Posted: 17 Aug 2017 at 12:32pm
	I think i got defects motherboard H110M-DVS. 2 motherboards have same MAC D0:50:99:72:EB:0C so i cant use them using DHCP for diskless or internet.

ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8847	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Posted: 18 Aug 2017 at 4:49pm
	Dear D3kilo, Thank you for choosing ASRock. Regarding your case, please check your MAC address is the same with the motherboard MAC sticker? If not, please follow the below link to write the correct MAC address to your motherboard. http://www.asrock.com/support/faq.asp?id=415 Thank you! Yours truly, ASRock TSD Edited by ASRock_TSD - 18 Aug 2017 at 4:51pm