http://hkdzone.com/%e5%af%b6%e5%af%b6%e6%95%99%e5%a4%a7%e5%ae%b6%e5%88%b7-sapphire-rx-480-nitro-4gb-oc-bios-22-mhs-29-mhs/
寶寶教大家刷 SAPPHIRE RX 480 Nitro + 4GB OC bios ( 22 MH/s to 29 MH/s )