- Joined
- Oct 24, 2003
Although there are a lot of posts on the net on this, it's still a hot subject, so I figured I'd have it here in one thread for us. Now, I need to start by reminding everyone that modding your bios may result in damaging your card and voiding warranty, so do this AT YOUR OWN RISK!! please be careful and consider doing this if you are experienced or just don't care about the card, also do one card at a time
Ok to the fun part, so you got your brand new (or old beaten off ebay) Polaris wonder, but you can barely get 22Mhs out of it .. you ask WTH .. well here's the answer:
- First, get the AMD Blockchain driver, here does wonders for ETH mining as it compensates for the DAG size slow down
- Second, its the memory timings, even if you set your card to the proper 1130-1150 Core and 2100-2150 Ram, the timings on the ram are slower when you OC so time to trick that with a handy bios mod or not .. this is the time to reconsider
To do the mod you need the following:
- TechPowerUp's super handy ATIFlash utility, you need this to save your current bios and to upload the modded one, get it here
- PBE also known as Polaris Bios Editor, get it here
Ok now that you got all that and are sure you wanna go down this road
- start ATIFlash with admin rights, right click, select run as admin
- hit save current bios
- start PBE and open your saved bios
- now here you have two options really, you can either
- hit the "one click timing patch" see pic:
- manually edit the timings by doing the following: select 0:1500 memory speed and copy the timings to 0:1625, 0:1750 and 0:2000, but I for one find that a bit aggressive and I just copy them from 0:1750 to 0:2000 a bit less mhs, but I feel a bit safer, its up to you here
- now save your modded bios and reopen ATIFlash (again as admin)
- select the GPU this bios came from, highly recommended you use the modded bios on the GPU it came from, since there are differences in memory and other settings and you dont wanna mess up your card by uploading the wrong bios, and hit program !
when its done, reboot
after reboot if your card shows up, but displays no sensors, fix the driver signature with this lil tool
reboot again and enjoy
Ok to the fun part, so you got your brand new (or old beaten off ebay) Polaris wonder, but you can barely get 22Mhs out of it .. you ask WTH .. well here's the answer:
- First, get the AMD Blockchain driver, here does wonders for ETH mining as it compensates for the DAG size slow down
- Second, its the memory timings, even if you set your card to the proper 1130-1150 Core and 2100-2150 Ram, the timings on the ram are slower when you OC so time to trick that with a handy bios mod or not .. this is the time to reconsider
To do the mod you need the following:
- TechPowerUp's super handy ATIFlash utility, you need this to save your current bios and to upload the modded one, get it here
- PBE also known as Polaris Bios Editor, get it here
Ok now that you got all that and are sure you wanna go down this road
- start ATIFlash with admin rights, right click, select run as admin
- hit save current bios
- start PBE and open your saved bios
- now here you have two options really, you can either
- hit the "one click timing patch" see pic:
- manually edit the timings by doing the following: select 0:1500 memory speed and copy the timings to 0:1625, 0:1750 and 0:2000, but I for one find that a bit aggressive and I just copy them from 0:1750 to 0:2000 a bit less mhs, but I feel a bit safer, its up to you here
- now save your modded bios and reopen ATIFlash (again as admin)
- select the GPU this bios came from, highly recommended you use the modded bios on the GPU it came from, since there are differences in memory and other settings and you dont wanna mess up your card by uploading the wrong bios, and hit program !
when its done, reboot
after reboot if your card shows up, but displays no sensors, fix the driver signature with this lil tool
reboot again and enjoy
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