Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 371. (Read 3839163 times)

Which one 16.9.1 or 16.9.2?
On my Power block is writen the next:
1300W max
+12V 106A max
-12V 1.0A max
+3,3Vsb 7.0A max
(is it required info?)

Dunno what the fuss is about.

I updated to v9 right after it came out, going from v8 on all my rigs and there have been ZERO issues. A little more power use and spikes up about 40-50watts on the 5-6 GPU rigs, but nothing that can not be handled.

I run my own BIoS on XFX based hardware and it's been stable since v9 came out, without any crashes etc..
I always say, check your hardware first as more than likely it's a power supply, cable or motherboard issue.
Just because the v9 taxes your whole system more and IT can not handle it, doesn't mean it's bad.

My r9-3xx/2xx GPU's added about 12-18% in hash rate, and the RX based GPU's about 4-5%.

Sadly with the price of ZEC, I might have to switch back to ETH soon.

Can you guys please explain what are the benefits of mining under SSL connection directly to pool ?


400W per card ? I use 750w PSUs on 3x GPU rigs all of them are RX480 8G and modded with low power bios for ETH. Total I was getting 333Watts from the wall on V8 and 345Watts from the wall on V9. (no clocks no mems changed, 185h/s per card)

ppl who complain about the spike, they really know exactly,
the spike its weird , its hit maximum gpu can absorb
my rig use only 860watt psu can handle 6 gpu (5 RX + 1 Nano) its consume 740 watt total,
heavy undervolted & underclocked,

Claymore should not mind peoples who do not know how to power their cards,
My rx480 cards can be powered 400W each safely (i even build own modular cables), my rig can work stable till 2,5kW (now using 760W), i am prepared for any algo with overclocking

Finally, some down-to-earth users around here...

Miner is stable, your hardware isn't. I have isolated the culprit card in my restarting rig and managed to make it run stable with v9. Now It hashes a little lower then the rest of my cards and still higher than v8.
Sure you have to look into what's happening in your rig, it doesn't work stable out of the box like v8 if you have weak components. Increased hashrate comes at a cost.

perfect. thats what i like, software made to wring every ounce of performance from hardware.

if someones setup (OC/timings/voltage tweaks etc) or hardware (PSU, cables, whatever) are substandard then they need to fix it, not have you waste time coding your software to baby stuff.

people always have the option to run previous versions.

myself, i had to up the voltage slightly to my 390s to get stable on v9

i'm quoting this..

i guess a lot of miners today didn't start mining during scrypt mining era (ex. litecoin) ... most likely they started mining during ETH era where GPUs don't draw their max rated power.

my rigs are all stable btw, i just reduced the core clocks of some of my overclocked GPUs and all is good again.

Agreed. Waiting for "9.1". I've read the arguments, but this is not a stable miner.

great, thumbs up

well the spike its weird ,its jump to the roof,
after reinstall driver & checking the rig, 6 hrs past without shutdown, hope its going well

Well, again, the fault belongs to the manufacturer, so Claymore can bear no blame.
And you not wanting to tinker with your systems to make it work, is your own choice. It is not something that everybody has/wants to do.
If you have not realised yet, you are in the bitcoin farming business, where if you don't stay competitive by all means, you don't win that much. Complaining only doesn't get you anything.

ZEC has complex PoW which consists of many steps, they are different and therefore have different power usage.
If your PSU cannot handle power usage peaks, it's not a problem of the miner.
Also note that I try to achieve maximal speed, it always causes more power usage and more GPU usage, so if you have OCed GPUs or weak PSU it may work for v8 but may fail for v9.
BTW, I added a couple of additional range checks for better stability (these checks are non-critical, just for sure), I will release an update in a few hours. Note this update will not change power usage.

By the same note, just because you did, doesn't mean everyone else (queue Jeremy Clarkson voice) "in the world" should have to jump through hoops.

v8 == no changes required. Works.
v9 == same configuration as v8. changes required. Doesn't work "out of the box" or even "on stock".

any word from claymore?

One more thing about these power spikes...

The fact that it isn't the miner's fault, doesn't mean that Claymore can't do something about it. He can change the code to be more progressive on that part where power usually spikes. This will mean that he will do what the manufacturers didn't, place a more proper limit on the use of hardware. But I repeat, it has nothing to do with the miner itself as software, it is well done, with no obvious glitches. This change, if done by Claymore, might also result in lower speeds, so we might get like a v8+ version, where speed is only a bit higher, but not as high as v9. So careful what you ask, you can either work to make your systems stable and/or change equipment with more quality ones, or just ask for this modification, but expect consequences.

And to understand why the power spike happens, it appears when gpu is fully utilized, and ram is being purged and reloaded for the next job (not "share" like I previously said, it would happen too often). This is something that games don't do, and if some do, they don't do it as fast as this miner. So, he isn't using some magic trick to go over the limit, it is just the combined usage of both gpu core and mem controller being used at their highest point.

If I was able to get 5x470 oced working on a 750w psu at 1065h/s (claymore v9), which previously at stock settings would just shut down, then you can too.

So true about hardware, manufactures and quality

I tried every pool out there and zec.suprnova.cc was the only one paying exactly what calculators say. Furthermore ocminer is all the day around here replying to questions and improving his pools, i prefer a pool maintained  by a miner than a pool maintained by some guy replying 7 days later (if ever they reply)



you probably mean dwarfpool displays roughly the same hashrate as Claymore miner says? actually it displays 15% - 20% higher hashrate and pays 50% less than what calculators say

Read my post to understand, you clearly don't: https://bitcointalksearch.org/topic/m.17127240