Quote from: cscheat on August 27, 2016, 01:32:37 AM

Quote from: SwedishBTC on August 26, 2016, 01:11:38 AM

I am having a problem with one of my rigs it is crashing all the time (sometimes I have to disconnect the power to all GPUs, uninstall the onboard graphics, and then connect the power to all cards again before rebooting the PC to get the PC to boot, and sometimes I even get THREAD_STUCK_IN_DEVICE_DRIVER error message when trying to boot the PC), and I did find out that if I turn off GPU 5 it seems to work better and not crashing.
I am running in Windows 10 x64 with Sappire Radeon RX 480, and I did try different drivers without any luck. And I got the same clock settings on all cards (I am running 4 more RX480 on another machine and that one did not crash one single time in over 3 weeks) This is how the logfile looks right before the crash if I run with GPU 5 on...

02:27:22:161   11f0   ETH: GPU0 27.335 Mh/s, GPU1 27.361 Mh/s, GPU2 27.348 Mh/s, GPU3 27.288 Mh/s, GPU4 27.351 Mh/s, GPU5 0.000 Mh/s
02:27:22:166   11f0    DCR - Total Speed: 2733.663 Mh/s, Total Shares: 319, Rejected: 4
02:27:22:171   11f0    DCR: GPU0 546.709 Mh/s, GPU1 547.214 Mh/s, GPU2 546.966 Mh/s, GPU3 545.762 Mh/s, GPU4 547.012 Mh/s, GPU5 0.000 Mh/s
02:27:22:446   ca0   DCR: weak share, skip
02:27:23:291   6ac   DCR: weak share, skip
02:27:23:761   408   GPU0 t=59C fan=44%, GPU1 t=84C fan=61%, GPU2 t=79C fan=53%, GPU3 t=79C fan=58%, GPU4 t=85C fan=61%, GPU5 t=85C fan=60%
02:27:23:766   408   em hbt: 0, dm hbt: 0, fm hbt: 0,
02:27:23:766   408   watchdog - thread 0, hb time 203
02:27:23:771   408   watchdog - thread 1, hb time 94
02:27:23:771   408   watchdog - thread 2, hb time 0
02:27:23:771   408   watchdog - thread 3, hb time 125
02:27:23:776   408   watchdog - thread 4, hb time 31
02:27:23:776   408   watchdog - thread 5, hb time 141
02:27:23:781   408   watchdog - thread 6, hb time 219
02:27:23:781   408   watchdog - thread 7, hb time 110
02:27:23:786   408   watchdog - thread 8, hb time 94
02:27:23:786   408   watchdog - thread 9, hb time 203
02:27:23:791   408   watchdog - thread 10, hb time 77656
02:27:23:791   408   WATCHDOG: GPU 5 hangs in OpenCL call, exit
02:27:23:796   408   watchdog - thread 11, hb time 77547
02:27:23:801   408   WATCHDOG: GPU 5 hangs in OpenCL call, exit
02:27:24:806   408   Restarting OK, exit...

This is how my *.bat file looks

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
EthDcrMiner64.exe -epool eth-eu.dwarfpool.com:8008 -ewal 0xMyEtherWalletAddress -epsw x -eworker miner2 -dpool stratum+tcp://dcr.coinmine.pl:2222 -dwal MyUsername.miner2 -dpsw MyPassword -dcri 40

What can be wrong, any advice?

Try not to push your GPU5 too hard... you must be running at 2250mhz

solutions for you:

1. Find out which one is GPU5
2. back to stock setting and slowly work your way up (2100 or 2125 mem is a good start.. )
2. Try ramp up the Fan speed (I saw your temp very high 85C)
3. Continue monitoring

Set temperature limit not more than 80:
I recommend you
-tt 75
and
-ttdcr about 78
to check if prevention of your cards overheating resolve your problem.
If it will be ok you can try little higher parameters, if not try another adjustement
-li -ethi etc (look OP for further details)

Quote from: Raja_MBZ on August 27, 2016, 09:54:25 AM

Quote from: xeridea on August 27, 2016, 12:09:05 AM

Quote from: Raja_MBZ on August 26, 2016, 11:05:42 PM

Guys, I'm almost done buying the following stuff:

Graphics Cards: 3x XFX Radeon RX 480 GTR OC 8GB - RX-480P8DFA6
Motherboard: GIGABYTE - Socket 775 - GA-EP35-DS3P
Riser: PCIe x1 to x16 Powered Extender (Over 1m USB 3.0 Cable) (USB 3.0 A with Molex)
PSU: Corsair CX750M 750W Watt Bronze Power Supply

Two out of three graphics will directly be connected with the motherboard (as there are 2 x16 PCI-e slots) and one will use the extender through x1 slot on the motherboard. Windows 10 x64 will be used as an OS.

Do you guys think that I'll be able to secure 85 Mh/s with this specification of the system using Claymore GPU miner? Someone here got any past experience with any of this stuff?

You can get ~24.8 per card, perhaps up to 27 if you OC the memory a lot. So more like 75 stock.

Are you saying that on some base? Have you tried off any of those? I'm pretty much looking forward for some suggestions/reviews.

By the way, does Claymore mining work good with Windows 10 x64?

Yes, but prevent to click on miner output, because it freeze the mining (at least in my case - focus) and I don't know how to disable this xS