Summary: I've owned the ASRock extreme 9 ac for about 8 months now and have no complaints at all. As for the mention of problems from Dr. Debug, that is a non-issue, it doesn't affect anything as it is only a post code indicator.
Summary: The specs on this board look outstanding, however, it is junk. Dr. Debug, nifty feature that is supposed to tell you when the board discovers a fault, keeps saying there is an issue with the SATA ports. On a new board, with new drives. Stay away.
Summary: I warn people from buying one of these used online because the warranty is not transferable no matter what you are told. They will only repair motherboards from a full sale price "NEW" condition and you must have the bill of sale from that "NEW" sale stating it is new and that the price also...
Summary: I read other reviews, but alas I suffered the same fate. The mini-pciex bluetooth/wifi adapter sucks. It sometimes worked, it sometimes didn't. Sent the board back. Also the mobo temp sensor would sometimes shoot up and disappear, or shoot down, then disappear.
Good MB, lots of connectivity, BIOS 1.30 was buggy though
G. Barnhill, Amazon
21 September 2013
Summary: I based my new Home Theater Server build around this MB. Because it's basically an HTPC/gaming rig that I built, I'm not using the overclocking capabilities, but I am using many of this board's key features and am pleased with the choice after flashing to the 2.10 BIOS.
Summary: Pros:Dual-Port Thunderbolt,Dual-Gigabit Lan with teaming function ,Wifi with Antenna,good Audio chip,PLX chip for 4-way Crossfire/Sli,advanced storage options,Home Cloud connectivity,good overclockability,fast performance.Bios with large number of options,12 Phase VRM,high quality,second backup UEFI...
Summary: I originally received this board with damaged CPU slot the pins were badly bent, but Amazon sent me a replacement and someone to pickup the damaged board and I'm happy to say it arrived in perfect condition along with the new CPU and Arctic freezer Xtreme rev.2 aftermarket cooler.
Summary: very happy with this board i switched form asus for the first time and have to say for the price it can't be bet, the overclocking on this board is very good i got a stable 4.6mhz on my hazwell i5k which i could only get 4.5mhz on the asus z87 pro.