I am using Afterburner, but I can't go BELOW 947MHz. I am trying to underclock. Overclocking works fine but I can't get manual underclocks to stick.
Don't use Radeon Settings. You need to use a third party overclocking tool like msi afterburner, sapphire trixx etc. It really is as simple as setting the sliders where you want and applying. You may also need to tick the checkbox for constant voltage to keep from throttling.
For example, my current settings in afterburner are
-50mv core voltage
-20 power limit
1050 core clock
1225 memory clock
I am using Afterburner, but I can't go BELOW 947MHz. I am trying to underclock. Overclocking works fine but I can't get manual underclocks to stick.
Ok, another newb question. Other than Claymore/Ethminer and the Ethereum Wallet is there any other needed software to get started? Thanks.
Ok, another newb question. Other than Claymore/Ethminer and the Ethereum Wallet is there any other needed software to get started? Thanks.
I'm not sure I understand. Are you saying the minimum speed for the core clock slider is 947? As in you literally cannot move it to the left? Or you can set it below 947 and the clocks dont change? Post some screens of your afterburner settings if you can. You may also need to check the unofficial overclocking limits box if you havent already.
Yep I can choose below 947 but the clocks won't stick.
I've tried extending the overclocking limits, using unofficial overclocking with and without powerplay, disabling ulps. Memory underclocking does work.
Yep I can choose below 947 but the clocks won't stick.
I've tried extending the overclocking limits, using unofficial overclocking with and without powerplay, disabling ulps. Memory underclocking does work.
This is gonna sound crazy but have you tried rebooting? I had that situation once and a reboot fixed it.
How are people underclocking their 290s? I can't seem to go below 947MHz on a manual underclock. I can however go above that value. Only way I can go below is to reduce the power limit, but then I don't have fine control over the clocks.
Using Afterburner.
Does this work with Lunbuntu 16.04?
Ok, another newb question. Other than Claymore/Ethminer and the Ethereum Wallet is there any other needed software to get started? Thanks.
Ok, another newb question. Other than Claymore/Ethminer and the Ethereum Wallet is there any other needed software to get started? Thanks.
It takes a new card roughly 4 months to pay for itself. Of course that varies by the card, price, ether price, and electricity cost, but it's going to be in that vicinity as long as prices aren't way out of whack.how long does it take for u guys to make back the money you spent on buying the cards?
No. Lubuntu 16.04 is not compatible with the Linux version of Catalyst 15.12 due to X.org server 1.18, which is unsupported by that graphics driver. You'll be stuck with the old radeon drivers that have . . . less-than-desirable OpenCL support. You might be able to get it to work with one card, but multiGPU is, to the best of my knowledge, not supported by the radeon drivers.
Here's my reasoning Madpacket.
1. There's only 12.5% core clock + compute unit compute performance difference between the two
2. Difference between 1266MHz core and 950MHz "optimal" core is 33%
3. Meaning if the same thing applies to the 470, 470 @ 1266MHz is essentially a 1125MHz RX 480
If 950MHz is an optimal clock for RX 480, then even RX 470 is entirely bound by memory bandwidth.
1125/950 = 18%
Potentially 18% higher hash rate than RX 480 @ stock assuming you can clock the memory 18% higher than RX 480 8GB's memory. That's 9.47GHz. Inversely, maintaining RX 480's stock performance means an RX 470 with memory @ 8GHz(up from 7GHz) can run its core at 1069MHz.
The other option is buying a RX 480 4GB. That's viable if the top OC memory clock is same as RX 480 8GB. It's very possible that its not. Perhaps 4GB version is a 7GHz binned one. In that case, save money get the RX 470 to OC memory.
Also, personally I got no choice. eBay USB PCI Express riser is still not delivered. Canada Post strike isn't helping things I bet. No RX-whatever is available to buy in Canada either. All out of stock. Minimum until Monday I can get my hands on it, if not a week from now.
Every time I made a change in Afterburner to the settings it made me reboot so yep I've tried that.
So I haven't been following the 480 powergate issue that closely. Is it still a problem? NewEgg sent me shipping confirmation yesterday.
Thank you miners, bet that's what AMD bosses would be thinking right nowGreat thanks for the replies. It's very typical of AMD to overvolt their hardware (CPU's / GPU's) so a BIOS update or limiting TDP through software makes sense and will probably make this a non issue. They really should have used an 8 pin power socket but given the target market I can understand why they went with a 6 pin. I guess for us miners it won't matter a lot as memory makes the biggest difference but I do plan to occasionally game on this thing
It doesn't seem to be hurting sales though!
It does look like the 480s are overvolted from the factory. The usual undervolting tricks will help. If we had better tools for BIOS editing on Polaris, you could probably edit TDC limit to lower maximum current draw as well, which is a great tool for reigning in undesirable behavior from cards leaking current.
The WattMan tool did a pretty good job of lowering the voltages for me. Tons of control in that regard. Fortunately, despite running three of them on an ASRock board, I haven't had any issues yet with power off of the slot.
Would really like a better hold on the memory voltages though, I'm not sure what they are at default but even adding 25mhz is the end of the world for temp management.
Thank you miners, bet that's what AMD bosses would be thinking right now
Try setting "Unofficial overclocking mode" to "without PowerPlay support".I am using Afterburner, but I can't go BELOW 947MHz. I am trying to underclock. Overclocking works fine but I can't get manual underclocks to stick.