US node. Seems fine today, but yesterday there were a few periods where there was nothing but rejects across all rigs. I just checked a rig that's on it's 6th day of uptime and all 7 GPUs are sitting at 1% rejects because of yesterday.

No, that's not the issue. It's a bug with sgminer and some driver versions. I say the bug is with sgminer because claymore doesn't have issues with the fans.

I'm over 24h without fan issues now, problem solved. Use 16.11.4 or 16.11.5. Hopefully the sgminer bug can get sorted, I'd like to use the latest drivers on my gaming rig.

Is something up with the pool? I'm getting a lot of rejects across all my rigs.

Gpu is unstable.  Increase voltage or lower clock speeds.

Hmm.  Thanks for the info. I think I'll give it another go with W10 enterprise tomorrow instead of pro and report back.

Have you tried with 16.11.4/5? I'm closing in on 9 hours now without issue. Will report back after 24h.

Yes, undervolted.  Running them at 1250MHz @ 975mV before vdroop.

Any idea what the registry hacks might be with Win10 Enterprise? I want to try building an 8 GPU rig, getting bored with my 7 GPU rigs. 

Improve XMR would be my vote.

Removed 17.1.2 this morning with DDU, tried installing 16.11.4 a few times but it would crash half way through driver installation. Gave up on that, and installed 16.11.5 after another DDU cleanup. I'm going to preemptively say the issue is solved. SGMiner has been running for 7+ hours and the fans are behaving as they should. With 17.x.x they'd go max RPM within about 2 hours, then eventually the fan on one of the GPUs would actually turn its self off. That caused the GPU to overheat, reach thermal limit and turn off the rig to protect its self. For the past 2 weeks I've been trying to figure out why it would turn off, and figured the PSU was to blame. I ended up figuring out the aforementioned problem by leaving VNC connected to it on another rig.


Rig that wasn't having fan issues:

4x Reference RX480 + 2x Reference style Sapphire RX470, all 6 with modded BIOS.
Win 10 Pro X64 / 16.11.4 driver
Mining XMR with SGMiner 5.5.5-gm

Stable for weeks on end

Rig with fan issues:
4x Reference RX480 with modded BIOS.
Win 10 Pro X64 / 17.1.1 and 17.1.2 driver, both same issue
Mining XMR with SGMiner 5.5.5-gm

Would mine for 2 hours or so before 1 or more GPUs' fans went full throttle. Eventually one of the fans would turn off completely, causing over temp protection to kick in and power down rig. Claymore would work perfectly for as long as I let it, no fan issues.



 

I've got the same issue on my gaming rig running the newer 17.1.2 driver. Another rig I have is running 16.11.4 and doesn't have the fan issue. Going to try downgrading to 16.11.4 later to see if the issue is solved.

  Always love reading about your work.

Sent you a PM, Eliovp.

I sincerely hope none of you flat earthers manage to reproduce.

Everything is normal for me, SGminer started working properly again a few hours ago.

On my end, Claymore SSL works fine but SGminer is 90% rejects.

Looks awesome! Going to give it a try later today and offer as much feedback as I can.

That's what I thought. That's a big "if" which likely would never pay for the cost of upgrading the CPU.

Why do you guys want a stronger more expensive CPU to mine with? Nothing is worth CPU mining right?

The LEPA 1600w is a fine PSU, nothing wrong with it. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=283

OP, you simply piulled too much power through that 12v pin. Don't go over ~70w on a molex or sata chain. Any modular PSU will melt a connector if you pull too much power through it.

Well done, but unfortunately 4 days is meaningless. A new 4 day test period would reveal completely different results.

Thanks for posting nonetheless.