Problems with powercooler R9 280x

[Destiffmast]

Hello fellow miners.

I wonder if someone can point me in the right direction coz I have white hair from the past 2 weeks trying to figure this out, so now I decided to cry for help.

I have 5 of these gpus but unfortunately I can't hash more than 580 khs.

I have literately tried every single guide available for these cards and none of them help my case.

I believe the problem is when I add -g 2, because the comp always goes off when I do that, if I remove the -g 2 it works at 580 khs but that's as far as it goes.

This is my bat. currently:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
--intensity 13 -w 256 -g 1 --lookup-gap 2 --thread-concurrency 8192 --temp-target 70 --auto-fan --gpu-engine 1090 --gpu-memclock 1500

I have also tried intensity at 20,19,18, and comp always shuts down when I do that.

I am using the latest sgminer with the latest catalyst drivers, also tried, bf and cgminer same results. My system is windows 7 ultimate. 

[HellDiverUK]

You need to find your sweet spot of core to memory ratio - it won't be the default speed, and it'll be different for every card.  I just used CCC to overclock.  You also want to be running at intensity 13.  Temp target is too high - the 280X throttles around 70C.  These are based on a 7950, but they are not the same!  I've mine set to 65C temp target.

I had serious issues getting my R9 280X working, I was only getting about 580kH with mine.  In a last ditch attempt downloaded GUIMiner-scrypt, set it up so it produced a batch file, which I use to run cgminer 3.7.2 - I now get 710-715kH.  It's default settings for the 280X work well, and once I tweaked the sweet spot, it worked a treat.

[BeepBeep2]

Hello fellow miners.

I wonder if someone can point me in the right direction coz I have white hair from the past 2 weeks trying to figure this out, so now I decided to cry for help.

I have 5 of these gpus but unfortunately I can't hash more than 580 khs.

I have literately tried every single guide available for these cards and none of them help my case.

I believe the problem is when I add -g 2, because the comp always goes off when I do that, if I remove the -g 2 it works at 580 khs but that's as far as it goes.

This is my bat. currently:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
--intensity 13 -w 256 -g 1 --lookup-gap 2 --thread-concurrency 8192 --temp-target 70 --auto-fan --gpu-engine 1090 --gpu-memclock 1500

I have also tried intensity at 20,19,18, and comp always shuts down when I do that.

I am using the latest sgminer with the latest catalyst drivers, also tried, bf and cgminer same results. My system is windows 7 ultimate. 

What about -g 2 with a lower clockrate?
Also try 1350 MHz memory and report your results.

[Destiffmast]

You need to find your sweet spot of core to memory ratio - it won't be the default speed, and it'll be different for every card.  I just used CCC to overclock.  You also want to be running at intensity 13.  Temp target is too high - the 280X throttles around 70C.  These are based on a 7950, but they are not the same!  I've mine set to 65C temp target.

I had serious issues getting my R9 280X working, I was only getting about 580kH with mine.  In a last ditch attempt downloaded GUIMiner-scrypt, set it up so it produced a batch file, which I use to run cgminer 3.7.2 - I now get 710-715kH.  It's default settings for the 280X work well, and once I tweaked the sweet spot, it worked a treat.

I will try that GUIMiner-scrypt, always heard bad reviews about it so never looked into it but if it works it's all I care.

[Destiffmast]

Hello fellow miners.

I wonder if someone can point me in the right direction coz I have white hair from the past 2 weeks trying to figure this out, so now I decided to cry for help.

I have 5 of these gpus but unfortunately I can't hash more than 580 khs.

I have literately tried every single guide available for these cards and none of them help my case.

I believe the problem is when I add -g 2, because the comp always goes off when I do that, if I remove the -g 2 it works at 580 khs but that's as far as it goes.

This is my bat. currently:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
--intensity 13 -w 256 -g 1 --lookup-gap 2 --thread-concurrency 8192 --temp-target 70 --auto-fan --gpu-engine 1090 --gpu-memclock 1500

I have also tried intensity at 20,19,18, and comp always shuts down when I do that.

I am using the latest sgminer with the latest catalyst drivers, also tried, bf and cgminer same results. My system is windows 7 ultimate. 

What about -g 2 with a lower clockrate?
Also try 1350 MHz memory and report your results.

Silly me never thought about lower the clock, thanks for that mate!

I have now tried that, first time in -g 2 that did not shut down the pc, so think I have to work my way up from 1350 coz khs now is only 506.

I went with this set up this time

--intensity 13 -w 256 -g 2 --lookup-gap 2 --thread-concurrency 8192 --temp-target 65 --auto-fan --gpu-engine 1030 --gpu-memclock 1350

[threat69]

Here are my settings for my powercolor R9 280x.  I have also set the voltage set at 1.1v

Was getting 715+Kh/s prior to setting voltage lower but temps were always running high.

Lowered the voltage to 1.1v and now fans run about 40% at 70c and get 710Kh/s and a lot less power at the wall.

"auto-fan" : true,
"temp-cutoff" : "85",
"temp-overheat" : "80",
"temp-target" : "73",
"gpu-fan" : "0-80",
"intensity" : "13",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "20800",
"shaders" : "0",
"api-listen" : true,
"api-port" : "4028",
"api-allow" : "W:127.0.0.1",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"gpu-engine" : "1005",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

If this helps anything is appreciated 
BTC : 18MJQWX87hpnagtzj5S9fUEpnkkx5zynK4

good luck

[Destiffmast]

Here are my settings for my powercolor R9 280x.  I have also set the voltage set at 1.1v

Was getting 715+Kh/s prior to setting voltage lower but temps were always running high.

Lowered the voltage to 1.1v and now fans run about 40% at 70c and get 710Kh/s and a lot less power at the wall.

"auto-fan" : true,
"temp-cutoff" : "85",
"temp-overheat" : "80",
"temp-target" : "73",
"gpu-fan" : "0-80",
"intensity" : "13",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "20800",
"shaders" : "0",
"api-listen" : true,
"api-port" : "4028",
"api-allow" : "W:127.0.0.1",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"gpu-engine" : "1005",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

If this helps anything is appreciated 
BTC : 18MJQWX87hpnagtzj5S9fUEpnkkx5zynK4

good luck

If that works I will surely tip you mate. I post later on to let you know what happened with those settings.

Thanks for replying to my thread.

[threat69]

also "thread-concurrency" : "20800", was at 11200 prior to undervolting

[Hotsauce]

I also have these cards, have finally got them running stable @ 1.1v ~720Kh/s

Using almost the same settings as in your post, however I found that these cards don't like anything over 1050 GPU engine

My settings:

Code:

--intensity 13 -w 256 -g 2 --lookup-gap 2 --thread-concurrency 8192 --temp-target 78 --auto-fan --gpu-engine 1050 --gpu-memclock 1500

[Destiffmast]

I also have these cards, have finally got them running stable @ 1.1v ~720Kh/s

Using almost the same settings as in your post, however I found that these cards don't like anything over 1050 GPU engine

My settings:

Code:

--intensity 13 -w 256 -g 2 --lookup-gap 2 --thread-concurrency 8192 --temp-target 78 --auto-fan --gpu-engine 1050 --gpu-memclock 1500

I already tried those settings with same voltage, pc shuts down after 2 min mining.

Thanks

[peterlustig]

Is your PSU strong enough for sure? Normally only the driver should crash if a setting is wrong/overclock too high/voltage too low.

BTW: My 280x hashes happily up to 95°C (forgot to set fan speed once), no throttling.

[Destiffmast]

Is your PSU strong enough for sure? Normally only the driver should crash if a setting is wrong/overclock too high/voltage too low.

BTW: My 280x hashes happily up to 95°C (forgot to set fan speed once), no throttling.

I have 1000w powering 2 cards, and another 1000W powering 3 cards, Its a 80plus from novatech they are very good quality power supplies, but to be fair I have wondered a few times already if in fact that is the problem, but rather not believe it coz just bought these psus 2 weeks ago.

[Destiffmast]

OK these settings got me to 700khs, first time I ever seen that without shutting down thew pc, only problem is it only mines o one card the other one is there doing nothing at 25khs, why aren't both cards hashing away?

 --intensity 13 -w 256 -g 2 --lookup-gap 2 --thread-concurrency 20800 --temp-target 70 --auto-fan --gpu-engine 1005 --gpu-memclock 1500

[pf22100]

I have 8 of these cards running happily at 740 khash on windows.  When I get home I will post what I did.

[threat69]

did you undervolt down to 1.1v.  I wasn't able to get to "thread-concurrency" : "20800", until then.  Hashrate didn't change much between 11200 and 20800.

Try backing down the "thread-concurrency" by multiples of 64 and see if that helps

Glad you could get to 700khs.  i was fighting it for a while too.

[pf22100]

K, I checked my settings and am getting 740 kh/s with these.  I'm using sgminer 4.1.0 and I have the powercolor 280x 3GBD5-T2DHE/OC model.  I've undervolted them to 1.1 v.

--intensity 13 -w 256 -g 2 --thread-concurrency 8192 --auto-fan --temp-target 65 -w 256 --gpu-engine 1045 --gpu-memclock 1500 --gpu-powertune 0 -k zuikkis

Couple of questions for you:
- what drivers are you using?
- are you deleting the .bin files?
- powered risers?
- when I had cards that came up with something like 25 kh/s, I found it best to go into computer management and delete the card, reboot and let it load the driver again and reboot.  That typically solved that issue.

good luck...