We have already discussed that AMD’s Polaris series of GPUS such as RX 470/480 and RX 570/580 had some issues with dropping performance in the upcoming DAG epochs, regardless of their video memory size. Last month there was information from Claymore and Wolf0 that AMD is working on a driver fix to resolve the problem.

It seems that there is already a solution that resolves the issue with dropping performance, even though it comes with unofficial driver (probably leaked official one with fix). It was posted by a new user on Bitcointalk, but has been confirmed to actually fix the problem and as a result you might regain some of the already lost hashrate and should not worry anymore that your performance will drop significantly if mining Ethereum by the end of the year. Do note however that this fixed driver is not going to make things work on 4GB GPUs when the DAG size approaches the limit of the video memory they have available and that is still happening!

The driver was posted on Dropbox (not working at the moment due to too much traffic) and on alternative download website. You need to install it via Device Manager, then patch it and restart the mining rig. You must also use the latest Claymore Dual Miner v9.8 and there seem to be some problems with using Afterburner for voltage and fan control, though you can still modify them via the Claymore miner settings just fine.

If these drivers are leaked from AMD (highly likely) we are most likely very soon going to see an official release available as well, so if you do not want to risk it, then just wait for the official release from AMD. It should most likely have the same effect as the modified drivers mentioned here. We have tested and can confirm they work and indeed fix the DAG problem.

– For more details about the Ethash DAG Epoch Fix driver for AMD Polaris GPUs…

• Kaspa (KAS) Mining is Slowly Catching Up to ETC Mining Popularity
• More About the New Scrypt Mining Pools on Ghash.io
• Trade and Earn Crypto from People Trading at the Mcxnow Exchange
• Raspberry Pi Overclock Optimized Image for Innosilicon A2 Scrypt ASIC Miners
• HalleyBTC, a New Service Offering Bitcoin Savings Investment
• Earn Daily Ether Dividends (Ethereum) with EMBS
• An Easy Way to Keep Track of Current ASIC Miner Profitability
• Storj DriveShare Rewards Report for January
• What Version of ccMiner to Use with your Nvidia GPU
• Revisiting PegNet (PEG) CPU Mining At The Orax Mining Pool
• Zcash (ZEC) is Now Slowly Stabilizing After a Bumpy Start
• How to Easily Keep Track of Coins with Master Nodes and Their Status
• How to Benchmark Your Nvidia GPU with ccMiner 1.7 Fork by tpruvot
• Where to Track SegWit (Segregated Witness) Adoption Progress
• Open Frame GPU Mining Rig Made with Copper Tubes
• Use Display Driver Uninstaller (DDU) To Clean Up Video Drivers
• Updates on Mining of Blakecoin (BLC) + PHO + BBLC + XDQ + ELT
• Are You Looking for a Hardware Crypto Wallet
• Bitcion Trader is No Longer Available, Another Ponzi Scheme
• Gridseed ASIC Miner Photo Contest Winner for Week 3
• How to Effectively Mine on Multipe Vardiff Pools
• New Crypto Currency Exchange that Tries to Build a Trading Community
• Modify the Bios of Reference Radeon RX 480 For Faster Ethereum Hashrate
• Check Out the YoBit Altcoin Cryptocurrency Exchange
• Billfodl is Another Secure Steel Crypto Wallet Backup