Topic: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux) - page 908. (Read 6590718 times)

@claymore
As I understand ethdcrminer can overclock,under/overvolt, GPU or VRAM independently from the bios.
if you want to over/underclock a Polaris card, (RX470/480/570/580...) what is the minimum set of mod ?
I guess:

• Memory strides (shifting stride from lower freq to higher freq)
• downclocking GPU because ATI does not allow downclocking with the API you use

and for all the rest:
am I right?

Is atitweak still useful?

I believe You can achieve that if You use config-file and no pools specified in starting command line. Changing config file as well as epools/dpools files should bring You there.

That's why gotta go with XFX, from my experience, they got superb service. Got my RMA with working same model back to me in 1 week timeframe.

Hi Claymore and Community.

I'm switched from 8.0 to 9.3 and noticed that time of share accepted increased 2-3 times. And totally effected pool average hashrate.
See below, (dual-mining or single mode result the same):

Version 8.0
ETH: Share accepted (62 ms)!

Version 9.3
ETH: Share accepted (156 ms)!
ETH: Share accepted (172 ms)!

So, seems this affect hashrate and I lost around 10% in 24 hours period.

Any suggestion are welcome, thanks in advance.

Dear All
i am looking for Bios for Sapphire Rx480 8G Nitro+ with samsung Ram to get  stable higher hashrate for  Eth+ DCR . any one upload it please

Has the memory controller load issue been solved, or a workaround found yet?

Running the latest claymore 9.3 on windows 10 with 16.11.5 drivers using the usual setx parameters. (Issue occurs on every driver I've tried)

I currently have 2 4gb reference 480s acting up with the last few versions of the miner. Troublesome cards are both Hynix memory.

This particular rig is my daily use PC and newly built with 3 RX 480. One card works great, while the other two have difficulties getting to 100% memory controller load. Getting stuck at 70%, 83%, and sometimes 90-94% depending on memory clocks.
It doesn't seem to matter which slot, or driver they are using.

I did spend some time testing various memory straps and timings for on the of the RX 480's.
The only way I was reliably able get 100% memory controller load was to use 1375 or 1425 straps copied over all others and keep the memory clocks no higher than 1750mhz. This seemed to be the only option despite the card being fully stable at much higher clocks. Occasionally a PC reboot would allow 1800mhz at 100% However more often than not, going over 1750mhz will instantly drop memory controller load to around 83% and hashrate down to around 19 mh/s.

Keeping the memory at 1750, and modding the bios to a rather low strap/tight timings it's possible to get 25.8 Eth and 774 DCR with dcri 30 (lowering dcr, only bumps it up to 25.9 give or take.) Compared to my other RX 480 which is working well at 29.3 Eth and 877 Dcr, or even a hynix 470 at 27 Eth these 480 seem stuck at a low hashrate.

I have yet to play around with the newest card, but I expect to hit a similar limitation.


This almost seems like a windows resource management/allocation issue than an problem with the card.

I saw a few similar posts back when 9.0 came out, and I'm hoping someone else with more experience, or luck has figured this out.

Testing 9.3
Rig : 4x RX 480 ref with mod bios
ETH only mining.
Stable hashrate, increase speed about 0.3%.
From 123.1 to 123.5

28.7 on the 1:1500 straps

the MSI gaming are decent the 470s

Buyer beware with MSI, my Gigabyte RX card is working perfectly.

What cards are you recommending - sub $200 with 22+ hashrate

http://lookpic.com/O/i2/788/JBWABsFR.jpeg

When using the current version and newest AMD drivers I am getting artifacts on my screen with no overclock whatsoever on my R9 380. This only happens when using ASM. With ASM 2 it doesn't seem to happen as often but still getting artifacts. Didn't see that this has been addressed yet. I am using Windows 10 Creator's Update, which until the most recent driver did not allow me to use Claymore's at all.

You can expect a month long wait while you RMA their defective crap. I'm betting eventually they just hand me back the garbage cards and tell me to eat it.

What can I expect from the
MSI Radeon RX 570 GAMING X
getting 22 from my RX470 Gaming X

I'll be tinkering with the timings if I have to, +20 MH/s screenshot or bust! 

You will make more using the 270x to mine something like ZCL or ZEC, Use the -di in your commandline .bat. Set the 480's to mine ETH and DCR. Set the 270x to mine ZCL. You will have two instances of Claymore open.

Hello. I have a couple questions to throw to the brain trust:



I am wondering if anyone out there is still mining SIA along with Ethereum?  Does it makes sense as a second coin?


Also, I am running 2 RX 480's and I have a sapphire r9 270x.  Any drawbacks to running an older, slower card with two new cards?

I am seeing the following hashrates      27.2  27.2   11.1


Thank you

AN RX 460 WILL NOT BEAT A 7950--

About 11-12MH/S for ETH sounds reasonable.  Any higher is smoke.  I had a 6 card RX 460 rig, and it was better at mining ZEC.  They are low wattage cards.       --scryptr

From a specs standpoint, the 7950 and RX 460 are in very different leagues.
The 7950 used to be AMD's 2nd highest end gaming card, and has a memory bus 3x as wide and 2x the shader cores.

And of course, that's not ETH. (Epoch #13, Musicoin perhaps?)

Finally, with Saphhire RX480 Nitro, I am stable at 31 MH/s at normal room temperature.