This seems to do the trick, let it run until it has finished creating DAGs in memory, close and re-open, holds at 780-790w for full rig for over 48 hours and counting

Thanks for recommendation.

Not sure what happened overnight, but woke up to the rig going nuts, pulling 1150w, killed miner and restarted, now pulling 765w - 770w WTF?

After a reboot its now pulling 900w - 920w erratically.

Anyone have any ideas?? its getting frustrating, it can run for weeks stable as hell and poof overnight, no changes it just decides to throw a wobbly.

My 7x RX470 rig has been running for months no issues (fingers crossed), so solid. But the RX480 rig, same OS, same CM, Same Drivers, Same PSU's etc does not.

Managed to reset everything and start again, now pulling 840w-845w.  alot better than the 960w it was pulling. And managed to squeeze out another 1MH/s and lower temps a degree or 2

Hi,

I am having a hard time with my voltage setup on my second rig so any help would be great, I have the below setup.

Asrock H81 BTC Pro R2.0
6 x Sapphire RX480 Nitro+ 8GB
2 x EVGA 750 G2 PSU

All bios mods are running Ubermix 3.1 via PBE 1.6.4

It currently runs cards at 1100/2000 875/850 & a couple at 1050/2000 850/850

I am getting between 29.2MH/s & 29.5MH/s per card total of 175.5MH/s for entire rig.

Running WIN10PROx64, Claymore 10.1, using DAGFIX drivers mining ETH only, but it is pulling over 900w at the wall, using Wattman to control speeds etc. (Temps range from 57-62)

My rigs run relatively quiet, due to their locations, quiet enough the wife is happy to have them in the room and quiet enough you can hold a conversation next to them (Saves me having to turn on the heating)

I had this running at just under 800w a few weeks ago, but unable to reproduce how I did this, so any help would be great

I take my last comment back, didn't last long. WTF is going on with ethermine lately?

Has anyone experienced issues with other pools?

I've seen the same, switched to eu2.ethermine.org, and has been fine for last 3 weeks, been getting between 2-5% stale.

Then suddenly it shot up to 15-20% Stale, so switched to us1.ethermine.org, seems to be stable for last 48 hours, back to 3% stale.

not sure if it is pure coincidence but since switching pools from eu1.ethermine.org 4444,  to eu2.ethermine.org 14444, my MH difference is now almost the same as it was.

My current diff is 4000MH. how is this any different to Dwarfpool?

Still does not explain the difference and why it is happening. I am now 31MH difference (this is a whole cards hashrate), I have restarted the rigs, updated miner software, reset clock/mem/power settings.

Made no difference, i really like ethermine and switching is not ideal as I need to mine a full coin before moving.

Anyone else have any ideas?.....

Ping time from rig1
Pinging eu1.ethermine.org [46.105.121.53] with 32 bytes of data:
Reply from 46.105.121.53: bytes=32 time=30ms TTL=52
Reply from 46.105.121.53: bytes=32 time=22ms TTL=52
Reply from 46.105.121.53: bytes=32 time=22ms TTL=52
Reply from 46.105.121.53: bytes=32 time=21ms TTL=52

Ping statistics for 46.105.121.53:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 21ms, Maximum = 30ms, Average = 23ms

ping time from rig2
Pinging eu1.ethermine.org [46.105.121.53] with 32 bytes of data:
Reply from 46.105.121.53: bytes=32 time=21ms TTL=52
Reply from 46.105.121.53: bytes=32 time=21ms TTL=52
Reply from 46.105.121.53: bytes=32 time=20ms TTL=52
Reply from 46.105.121.53: bytes=32 time=21ms TTL=52

Ping statistics for 46.105.121.53:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 20ms, Maximum = 21ms, Average = 20ms


Number of stale shares has risen from practically nothing 0-2/3 every 10 mins up to 15-20 every 10 mins

Whats with the average hashrate dropping slowly?

I've read a few posts saying its something to do with the pool, but not sure.

Any ideas?

both of my rigs has been running solid, without any issues, one is running Claymore 9.8, August Blockchain drivers, custom BIOS. (4xSapphire RX470 Nitro+ 8GB Samsung & 3xSapphire RX470 Nitro 8GB Micron) 198.45MH, the other is currently running Claymore 10, August Blockchain drivers & custom bios (2xSapphire RX480 Nitro+ 8GB Samsung) 58.7MH. Total - 256.4MH.


Before the Byzantium update, my average hashrate was withing 3-4MH of my reported rate. But as of late its nearer 25-28MH difference.

Any ideas?

Hey all,

I am trying to tweak my rig, but struggling with baseline settings. I have searched the web and read through forums for answers, but all the answers seem to be ethereum, or all the zcash posts are way old

Does anyone know what is a good base hashrate for Sapphire RX470 Nitro+ 8GB and Sapphire RX470 Nitro 8GB, on stock ROM

I can get the RX470 Nitro+ running at about 270-275 Sol/s, and the RX470 running around 255-260 Sol/s, 7 cards total running just over 1000w

But no idea on what is actually any good.

Any help would be great.  

Hey All,

I'm trying the new AMD drivers on my 7 rx 470 rig, all stock settings, but one of the GPU's keeps giving the below error

GPU #0 returned incorrect data! 5015fcc9

All others seem to be fine, this gpu still manages to get some shares though.

I have changed the intensity too for this GPU but made no difference

Any ideas?

-dcri

more info is in the readme.txt file in the root folder of Claymore Miner

best to test with the + / - keys first to find your best rate.

Does anyone know if there has been any more news on the official AMD driver release?

There are several posts on an unofficial release, but its been very quiet for the official release.

.......?

I'd say

1. Samsung
2. Hynix
3. Micron/Elpida (Elpida is a subsiduary of Micron)

But it all depends on the system architecture around it.

Hey All,

New to this forum fun, i'm more of a reader/follower!

But would like to share this as i've struggled to get a bit more info on, and wondered if anyone else has any info.

I'm currently running a 7 GPU rig of RX470s, 4xRX470 NITRO+ and 3 RX470 NITROs on an MSI Gaming Pro M5 Board and all powered by 2 x EVGA 750 G2 PSU's
Using Claymore miner 9.7 and AMD driver 17.7.1

At stock, they are running around 23MHs only just after the last EPOCat the time (137), but not being one to go as far as flashing the BIOS (yet), I found out about the ASUS GPU Tweak II hack/break and gave it a go, I managed to break past the std mem clock of 2100MHz on the Nitro+ cards up to 2250MHz, and the clock speed down to 1125 and power at 925 for stability. (all these settings were in the Radeon WATTMAN tool) and managed to get them over 26MHs  @ EPOC 136 without bios mod (essentially this is a soft bios mod). Total rig avg 178Mhs+

But unbeknown to me(foolishly), I left the automatically update setting turned on, and it updated the drivers to 17.7.2, arghhhhhhh. Oh what fun I had trying to get this mess sorted, ended up using the DDU utility to remove all drivers, but this killed the GPUTweak program, no longer starts or works anymore, even after removal and reinstall, oh well! So decided to look elsewhere to break this limit.

Came across another article about MSI Afterburner's "Extend official overclocking limits" settings and a registry key called "PP_PhmSoftPowerPlayTable", (located Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\XXXX - last 4 digits relate to GPU cards, this key will reside in all of the GPUs installed) this essentially does the same thing as GPUTweakII and breaks the fixed limits on Wattman.

To cut a long story short, i'm waiting on the new drivers from AMD, but not knowing what EPOC it will resolve back to, its hard to give some estimations, but currently i'm running a bit more conservative @ just over 25MHs 1125/2150/875, temps avg 61deg celcius, fans running around 25-50% depending on card location in rig. - Total rig avg 175.4MHs

Its not the best, but its the balance between having the wife throw the rig out the window because of the noise and heat, or keep it reasonably quiet and continue mining!

 

PS. I'm only running ETH at present