Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 19. (Read 3839201 times)

i have 2 x fury x cards water cooled , is it better to run crossfire or just 2 cards ?

is this version 12.6 also vulnerable for remote attackers?

last week i'm getting messages in log like:


every several minutes

1. No need to disconnect from pool during slow blocks, it requires pools to periodically broadcast dummy jobs, it does not make any sense. Or make it configurable.


{"id": null, "method": "mining.notify", "params": ["JOB_ID", "VERSION", "PREVHASH", "MERKLEROOT", "RESERVED", "TIME", "BITS", CLEAN_JOBS]}


So in order to keep miner connected pool must force such dummy notify with last parameter (CLEAN_JOBS) set to false and incr ntime.

2. No need to treat error response to a nonsensical and non standard "extranonce.subscribe" method as "Share rejected" on launch.
3. No need to disallow different logins if `-nofee 1` specified, since there is no fee, allow any usernames to be used. At least useful for testing.

Just from 3 minutes of using it.

EDIT:  Problem fixed. Leaving original post intact below.

This morning I decided to check my graphics driver version and I discovered that despite me manually doing a clean install of 16.3.2 yesterday, 17.11.1 was  installed at some point without my knowledge or me being prompted for it. Auto update was unchecked in the AMD app, so i'm not sure what happened nor why I wasn't even prompted for a restart after it updated.

All seems well now, though I wonder what changed in  the Fiji/Fury drivers since 16.3.2 that messes with ASM?




------------  Original Post -------------

Hey guys, I got a little problem and I'm hoping that someone can help me find the fix here.  I've tried google and really haven't had much luck finding a fix.

Miner v12.6
Card:  AMD Radeon Fury
Win10  64Bit
Divers:  Both 16.3.2  and 17.11.1 (current)


The problem I seem to be having is that the miner freezes on me at start, usually right after authorization. No Hash speed, or anything else. It just hangs, freezes my PC and looks like it might be crashing my graphics driver (screen goes black).

It does this if I try to use ASM. If I set "-asm 0" in the config then it doesn't crash, but I only get 314H/s, far below what I should be getting on a Fury.

-asm 0 -a 2  gets me about 380H/s

I managed to get it running with asm on only 1 time, and that gets me 480H/s


Anyone have any ideas that could help me getting the full power of this gpu?

If you back read a page back you and i have almost the same problem, we lack the virtual memory to continue mining.
I suggestion you add more memory your hard drive since you need at least 12k MB to mine.

@Claymore: Please add support BTG. For BTG Maximum job timeout over 20 min. 12mins for BTG is low

The error message is from a pop up window after I double clicked on the zecminer64.exe application.

"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."

Even if I ran the file as administrator, same error message.

Can you post the message?

Dear all,
I need some help with the zecminer64. I downloaded the files for claymore and updated the wallet etc. When I ran the zecminer64.exe, it does not work and has error message saying the path cannot be found. Any advice on how to fix this?

I think rx 480 is not that fast.

amd r9 380x gives around 280 - 340 sol/s based on bios and clocks, amd products are better for cryptonote a moded rx 480 can give around 750 - 1000 h/s.

how many sols should i get on rig with 6x380x from AMD, i'm thinking about make a rig, winter is coming.

Probably lack of memory with your video card.. It needs at least 2 GB of ram I think.
Also your card is soooooo weak, it's pointless to even mine with it. You would be losing money to mine with that card.
Get yourself a proper mining rig with at least 5 or more AMD RX 470 4GB video card if you want to earn any money.
Remember you are competing against other miners with a lot more hashing power.

Im trying to mine with Radeon HD-7770 1GB, but everytime i try to run GPU mining i end up with this:

����������������������������������������������������������������ͻ
�           Claymore's ZCash AMD GPU Miner v12.0 Beta            �
����������������������������������������������������������������ͼ

ZEC: 1 pool is specified
Main ZCash pool is zec.pool.minergate.com:3357

Catalyst 15.12 is REQUIRED for best performance and compatibility
15.12 does not support some Fiji cards, use 16.3.2 for them
For 4xx cards (Polaris) Crimson 16.12.2 is recommended

At least 16 GB of Virtual Memory is required for multi-GPU systems
Make sure you defined GPU_MAX_ALLOC_PERCENT 100
Be careful with overclocking, use default clocks for first tests
Press "s" for current statistics, "0".."9" to turn on/off cards, "r" to reload pools
NOTE: miner uses 3000 rounds to calculate average speed, so it may take about a minute to get correct speed.
OpenCL initializing...
AMD Cards available: 1
GPU #0: Capeverde, 638 MB available, 5 compute units
POOL version
GPU #0 is going to use too high intensity (2), not enough memory, intensity value reduced (0)
GPU #0 algorithm 1, intensity 0
Total cards: 1
AMD ADL library not found.
OpenCL error 0 #101 - -61
"-allpools" option is set, default pools can be used for devfee, check "Readme" file for details.
Watchdog enabled
Remote management (READ-ONLY MODE) is enabled on port 3333

ZEC: Stratum - connecting to 'zec.pool.minergate.com' <176.9.122.21> port 3357
ZEC: Stratum - Connected (zec.pool.minergate.com:3357) (unsecure)
ZEC: Authorized
Pool sets new share target: 0x0083126e (diff: 500H)
GPU 0, GpuMiner kx(2) failed -36
GPU 0, GpuMiner kx(2) failed -36
GPU 0, GpuMiner kx(2) failed -36
GPU 0, GpuMiner kx(2) failed -36
GPU 0, GpuMiner kx(2) failed -36


Any tip whats wrong? I set variables in ./start.bash as described in the first post, still not working. Im running Ubuntu 16 lts. Thanks!

what is the speed and the command from these miner

with R9 RURY cards??

May I ask when the next update will come? also if there will be any performance bump for VEGA cards?

Dear Claymore,

Your miner rocks. A little favor to ask, could you optimize your next zcash miner, so that fury cards can run full speed under the latest blockchain driver? Depends on the profitability, I switch coins sometimes and 16.3.2 gives bad results with Daggor-Hashimoto (Ethereum) coins

Thank God

Unfortunately, currently I don't have enough time for that, sorry.

Yes I will reduce devfee in next update.