thedonvon (OP)
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April 06, 2013, 02:03:49 PM |
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I just started mining and have been using my computers 6870. Everything has been working pretty well and i have been getting about 300 Kh/s. So i went to the store last night and after a bunch of research i purchased a 7870. it was on sale and i saw online that people were getting hash rates of about 400-450 Kh/s.
After installing my brand new second card i started mining, and the new card just will not perform!!! i cannot get more than about 275Kh/s. I searched and searched last night for hours trying to get this going. I tried different thread concurrencies, intensities, pools, i updated the drivers to the newest version, as well as the newest BETA. I DO NOT KNOW WHAT TO DO PLEASE HELP!!!! haha
Any suggestions?
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GiLa
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April 06, 2013, 02:15:48 PM |
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have you tried using 12.8 drivers?
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thedonvon (OP)
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April 06, 2013, 02:19:49 PM |
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I did install my card drivers...i have tried 13.1 which is the latest released and i have tried 13.3 (currently) which is the latest beta release. Did not see much of a difference with each. I will download and try 12.8 now.
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hate_the_face
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April 06, 2013, 02:25:50 PM |
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is this for bitcoin or litecoin?
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thedonvon (OP)
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April 06, 2013, 02:26:46 PM |
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I am doing Litecoins
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GiLa
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April 06, 2013, 02:28:50 PM |
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If the drivers dont work just try testing the 7870 by itself first to make sure its not a dud card should be getting at least 350ish 400+ will require overclocking
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thedonvon (OP)
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April 06, 2013, 02:41:09 PM |
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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
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thedonvon (OP)
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April 06, 2013, 03:05:10 PM |
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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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GiLa
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April 06, 2013, 03:13:09 PM |
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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?
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Shrink
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April 06, 2013, 03:15:24 PM |
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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
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thedonvon (OP)
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April 06, 2013, 03:25:58 PM |
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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.
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thedonvon (OP)
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April 06, 2013, 03:57:51 PM |
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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?
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hate_the_face
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April 06, 2013, 03:58:39 PM |
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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
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Shrink
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April 06, 2013, 04:22:40 PM |
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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.
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hate_the_face
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April 06, 2013, 04:43:08 PM |
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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
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thedonvon (OP)
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April 06, 2013, 05:11:06 PM |
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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
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hate_the_face
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April 06, 2013, 05:49:41 PM |
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it's more likely crashing because of something else I'd say.
what does your batch file look like?
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Shrink
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April 06, 2013, 06:42:29 PM |
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BTW I also got a code for Tomb Raider Steam download and would trade it for 0.25 BTC or 14 LTC
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thedonvon (OP)
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April 06, 2013, 07:32:40 PM |
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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
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