New GPU...low hash rates...please help!

thedonvon

newbie

Activity: 49

Merit: 0

Quote from: balistick on April 06, 2013, 04:46:57 PM

Don't forget to erase the bin file in cgminer directory each time you change your launch parameters Sad

It may save some headaches !

Never knew to do this thank you for that tip!!!

still cant figure out how to set GPU0 to 1 thread and GPU1 to 2 threads???

also any setting tweaks from my earlier post that will get me better hashrate? Thanks!!!!!

BladeRunner

full member

Activity: 205

Merit: 100

Cheif Oompa Loompa.

Quote from: andy48 on April 06, 2013, 03:55:42 PM

I only use 7970's, but they worked out of the box. I just can't use cgminer 2.11.x anything for some reason. I use 2.10.x still.

Andy

I used them out of the box and never had any problem.
thats really bizarre that 2.10 works and .11 does not. using the same config file from .10?

balistick

newbie

Activity: 22

Merit: 0

Don't forget to erase the bin file in cgminer directory each time you change your launch parameters Sad

It may save some headaches !

thedonvon

newbie

Activity: 49

Merit: 0

I checked and i am not cpu mining at the same time.

Quote from: hate_the_face on April 06, 2013, 11:58:39 AM

im using this batch configuration in cgminer 2.11.4 and getting an average of 350 kh/s and that is without any voltage changes. If you dont want to overclock it at all you can take out those setting after the --auto-fan stuff

cgminer --scrypt -o yourpool:port -u yourusername -p yourpassword --intensity 12 --worksize 256 -g 2 --thread-concurrency 5120 --auto-fan --auto-gpu --gpu-engine 1100 --gpu-memclock 1450 --temp-target 66

using these settings i am running at about 290 Kh/s

any suggestions how i can modify these settings to get some more out of the card? I feel like the card has more in it, when i run my 6870 i get 290Kh/s and use these settings

--intensity 18 --worksize 256 --gpu-threads 1 --thread-concurrency 6720 --auto-fan --auto-gpu --gpu-engine 900 --gpu-memclock 1050

if i am getting 290 out of my 6870 i should definitely be able to get more out of my 7870!

also is there a way to have one GPU run with 1 thread and another with 2. i tried --GPU-threads 1,2 but it will not work. says "1,2" is not a number. i am trying to set GPU0 to 1 thread and GPU1 to 2 threads

Thanks for everyones help!

Catanonia

member

Activity: 118

Merit: 10

Check you are not accidently CPU mining at the same time.

I made that mistake with a tick box and it killed the AMD performance due to shared openGL

Vorksholk

legendary

Activity: 1713

Merit: 1029

Try a 0.57 Core:Memory ratio (570 Core to 1000 Memory is a good starting point)

andy48

newbie

Activity: 11

Merit: 0

I only use 7970's, but they worked out of the box. I just can't use cgminer 2.11.x anything for some reason. I use 2.10.x still.

Andy

thedonvon

newbie

Activity: 49

Merit: 0

OK so i reinstalled windows and fixed the crashing problem. I have been messing with settings on my 7870 and am not getting results. it seems like no matter what i make the settings i average about 280 kh/s. I have tried different thread concurrencies thread counts intensities and have tried both cgminer and guiminer scrypt.

I do not understand it. I cannot get this card to perform. This is very frustrating. does any1 have a 7870 and can help me get setup with either guiminer scrypt or cgminer? I tried the settings which were posted earlier in this thread and got the same result about 300 kh/s

Shrink

newbie

Activity: 18

Merit: 0

BTW I also got a code for Tomb Raider Steam download and would trade it for 0.25 BTC or 14 LTC

hate_the_face

member

Activity: 84

Merit: 10

it's more likely crashing because of something else I'd say.

what does your batch file look like?

thedonvon

newbie

Activity: 49

Merit: 0

I am now having a problem with the SDK...when it is installed i cant get cgminer to run it crashes. without it installed cgminer will run but didnt detect the GPU

hate_the_face

member

Activity: 84

Merit: 10

my fan is usually spinning in the 2700-2900 rpm range but it keeps it around 64 degrees C and I dont get any hardware issues.

I am using an XFX card but I dont see why it would be much different.

This was also on ltcmine.ru stratum server im not sure what pool youre using

Shrink

newbie

Activity: 18

Merit: 0

Quote from: hate_the_face on April 06, 2013, 11:58:39 AM

im using this batch configuration in cgminer 2.11.4 and getting an average of 350 kh/s and that is without any voltage changes. If you dont want to overclock it at all you can take out those setting after the --auto-fan stuff

cgminer --scrypt -o yourpool:port -u yourusername -p yourpassword --intensity 12 --worksize 256 -g 2 --thread-concurrency 5120 --auto-fan --auto-gpu --gpu-engine 1100 --gpu-memclock 1450 --temp-target 66

Just tried that with that http://de.msi.com/product/vga/R7870-2GD5T-OC.html card. Still only 290khash and my fan is going crazy.

hate_the_face

member

Activity: 84

Merit: 10

im using this batch configuration in cgminer 2.11.4 and getting an average of 350 kh/s and that is without any voltage changes. If you dont want to overclock it at all you can take out those setting after the --auto-fan stuff

cgminer --scrypt -o yourpool:port -u yourusername -p yourpassword --intensity 12 --worksize 256 -g 2 --thread-concurrency 5120 --auto-fan --auto-gpu --gpu-engine 1100 --gpu-memclock 1450 --temp-target 66

thedonvon

newbie

Activity: 49

Merit: 0

12.8 will not run on my system. I have uninstalled and reinstalled multiple times. I am gettting FCs with not only catalyst but with other programs as well with 12.8 installed. Computer is not running correctly with it installed. Should i use 13.1?

thedonvon

newbie

Activity: 49

Merit: 0

Quote from: Shrink on April 06, 2013, 11:15:24 AM

Quote from: thedonvon on April 06, 2013, 10:41:09 AM

I thought i would be getting in the 400 range after looking at this link. https://en.bitcoin.it/wiki/Mining_hardware_comparison

if you scroll down to the 7870s they are all showing in the 400+ range. one entry is actually my card. I have the MSI R7870

I am having exactly the same situation. Same card, mining litecoins only with 270k max. Bitcoin mining seems to be fine (apporx 420MHash).
If anyone would have a solution for this I would be more than happy.
I already tried different miners and different settings on intensity and thread-concurrency - still same result

I am running win 7 ultimate x64. I have uninstalled my other card so i am running with just the 7870 right now. I will try the 12.8 again now.

GiLa

newbie

Activity: 44

Merit: 0

litecoin mining is abit different from bitcoin

clock/memory where memory should be higher

https://bitcointalksearch.org/topic/consolidated-litecoin-mining-guide-for-5xxx-6xxx-and-7xxx-gpus-117221

try that

Shrink

newbie

Activity: 18

Merit: 0

Quote from: thedonvon on April 06, 2013, 10:41:09 AM

I thought i would be getting in the 400 range after looking at this link. https://en.bitcoin.it/wiki/Mining_hardware_comparison

if you scroll down to the 7870s they are all showing in the 400+ range. one entry is actually my card. I have the MSI R7870

I am having exactly the same situation. Same card, mining litecoins only with 270k max. Bitcoin mining seems to be fine (apporx 420MHash).
If anyone would have a solution for this I would be more than happy.
I already tried different miners and different settings on intensity and thread-concurrency - still same result

GiLa

newbie

Activity: 44

Merit: 0

If you read to the right side of the column it also says 1100 clock speed and the card you mention on that link is clocked at 1250 with changed heatsink

I also own a 7870 Gigabyte OC 1100MHz from the factory and a 7970 xfx ghost dd

anyways if you cant get 12.8 to run theres something wrong

what operating system do you have?

thedonvon

newbie

Activity: 49

Merit: 0

i cannot get 12.8 to run on my machine. Uninstalled driver and reinstalled 12.8 and i get FC for catalyst and MMloader. What other driver version should i try?

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