I can tell you about my case:

Dev fee = 2%
Pool fee = 1%
Stale shares/Rejected shares (due to network latency) + Incorrect shares (due to overclocking) = aprox 2%

So in my case, my average reported hashrate should be  5% lower than my reported hashrate and indeed it is.

Calculate those numbers in your case and if they do not sum up, then something is wrong with your pool.

I had 20% (!!!) lower shares from suprnova DCR pool for the last 2 weeks and I switched to CoinMine

just install the card and amd driver. claymore will use both automatically. no need to change anything in the command line or .bat files you currently use.

Claymore, is there a way you can implement your miner into this: https://github.com/nwoolls/MultiMiner/releases
Is it possible to mine via MultiMiner?

Just a stab in the dark but for ETH 2GB cards no longer work.

i have 3 rigs with 6x gtx 1060 3gb

1 rig with 4x rx 480 8gb

1 rig 6x 1060 3gb (samsung memory) mining at 143mh ( claymore 9.7 very good work is perfect now!!!! very stable!!!! better than ethminer now)
+100 core
+730 memory
tdp 55%
at wall kill a watt says 495 watt!!!!!!!!!
all this rigs using just one thermaltake 730w!!

1 rig 4x rx 480 bios mod (27+25+27+25 i cant get more) they mining 104mh power drain is 700w!!!!!!!! nvidia won!!!!
with this i am using corsair 850w

I'm having a problem with Claymore's miner which i can't seem to solve by myself. Im not one to ask quick but im at a loss here.

I have Gigabyte HD 7790 6GB and no matter what i do, i can't get both gpu's to work. It recognizes them both but only one works. It's also never the same core/gpu (allthough claymore's miner might assign new numbers every time i reboot).

I tried different versions of the driver, undervolting, underclocking. I lowered the intensity. Re-installed windows 10 (64) and all the drivers. No changes.
When i benchmark the card, i see 2 cores being utilized. I have ran multiple GPU's before and that was no problem. Also when i used other GPU's to mine and when i would browse it would decrease the mining speed. With the hd 7990 it simply offloads it to the unused core and the mining speed stays the same. I can confirm this in MSI Afterburner too.
I'm mining at 300 h/s with one core. Seems more then 1 core should produce, at least on a hd7990, the 2 cores should combine produce something like 480 h/s is what i have see others pull.

So to sum it up:
2 cores seem to work, benchmarking them and multi-tasking while mining the second one seems to kick in. Claymore seems to have trouble to get the second GPU to do anything at all. The one that does work seems to work as a standalone r9 280x.

I use 15.2 crimson, 12.5 claymore's miner.
This is my bat file:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

ZecMiner64.exe -zpool eu1-zcash.flypool.org:3333 -zwal t1diREdKHkAtCNJwPs53gciXPZCkLs4fZ5z.rick1

If anyone could help me, I would be eternally greatfull.

Usually this happens when crossfire is on.

Does anyone know if claymore miner is a fork of CGminer or SGminer?

 

Thanks for your answer. Pls check PM.

Forgive me, but what is ISA?

I wish I could get the HBM2 memory clock over 1100MHz, but that seems to be the hard limit.  I can't get my vega cards to sit at a specified core clock.  It seems from my experimentation that the core clock needs to be equal to our slightly above the memory clock to achieve peak hashrate.  Any higher and it's wasted energy.  I've also noticed that GPU temp has a drastic effect on performance, so getting lower clocks, lower volts and high memory clocks seems to be the ticket.