I purchased a new RX 480 not too long ago and was very excited to start mining. I loaded up windows 10 on a Dell workstation and fired it up. Installed the related drivers then got a Code 43 error which I realize now could have been fixed easily. I then switched to Linux and started mining at 26mh/s. I then wanted to switch to windows for overclocking purposes. I switched to windows 7, installed the proper drivers and fixed the code 43 error with the patcher. I then decided to flash a different VBIOS to the card without saving the original.
I'm currently on Windows 7, with AMD's 17.##.1 drivers. I have flashed the RX480.air VBIOS to the card and have no troubles getting it to comply with the drivers. My problem is that when I turn on Claymore'a miner and overclock with the MSI Afterburner, the card gets a maximum hashrate of ~18.700mh/s. I'm in need of some guidance here, I know the card has the potential to reach up to 31mh/s. I have the memory at 2200mhz, the core at 1200mhz and 150% power settings.
I would like to achieve over 24mh/s ideally.
Thanks in advance.
This might be a driver issue, try to use modified drivers for windows 7 by Robinh00d
https://bitcointalksearch.org/topic/ethash-dag-epoch-rx470480570580-fix-2068446
works well with my windows rigs.
Thanks a million! Getting 28Mh/s stable on the modded BIOS. Though when I try to overclock, I get some incorrect shares.