So i just tried again with the clocks, i got to 1600 before it crashed so restarted with 1575mem, then i only got to 825core before it went unstable... i just cannot seem to get anywhere near the clocks people are recommending...
With 1500 mem I go up in increments of 5 until the hashrate crashes then decrease by 1 until it is at its optimal which are the clocks i posted earlier...
Topic: Gigabyte 7970 advice (Read 686 times)
Thanks for your reply...
What cards do you use?
I will try changing the clocks again but if i go any higher on core clock at the moment then hashrate quickly drops! any thoughts as to why?
Your voltage is slightly different aswell, i am hesitant to change this but is it something you have done?
cheers
What cards do you use?
I will try changing the clocks again but if i go any higher on core clock at the moment then hashrate quickly drops! any thoughts as to why?
Your voltage is slightly different aswell, i am hesitant to change this but is it something you have done?
cheers
Your core clocks are too low and mem clock could go higher too.
Core should be 1050 and up. Clock your mem as high as it will go stable.
I use 1130/1750 and it nets me 788 on two cards.
Core should be 1050 and up. Clock your mem as high as it will go stable.
I use 1130/1750 and it nets me 788 on two cards.
Hey guys,
a couple of us have been mining altcoins for a while now and i have been messing around with settings but cannot seem to get over 680kh/s per card!!
Info on the rig:
4x gigabyte 7970 GV-R797OC-3GD rev2.1
8gb Ram
Processor AMD FX(tm)-4100 Quad-Core Processor, 3612 Mhz, 2 Core(s), 4 Logical Processor(s)
Motherboard
Running windows 7 64bit.
I am running cgminer 3.7.2 with the following .bat file (after trying various combinations, this seems to give the highest hashrate):
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
timeout /t 180
C:\Users\Miner\Downloads\cgminer-3.7.2-windows\cgminer-3.7.2-windows\cgminer.exe --scrypt --url stratum+tcp://eac.us1.hackshard.com:3333 -u x -p x --intensity 13 --gpu-engine 955,955,971,971 --gpu-memclock 1500 --thread-concurrency 8192 --auto-fan --worksize 256 -g 2 -v 1 --lookup-gap 2
Can anybody see something i am missing that is denying me the 700+kh/s that people seem to be getting?
Any help is greatly appreciated!!!
Thanks
a couple of us have been mining altcoins for a while now and i have been messing around with settings but cannot seem to get over 680kh/s per card!!
Info on the rig:
4x gigabyte 7970 GV-R797OC-3GD rev2.1
8gb Ram
Processor AMD FX(tm)-4100 Quad-Core Processor, 3612 Mhz, 2 Core(s), 4 Logical Processor(s)
Motherboard
Running windows 7 64bit.
I am running cgminer 3.7.2 with the following .bat file (after trying various combinations, this seems to give the highest hashrate):
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
timeout /t 180
C:\Users\Miner\Downloads\cgminer-3.7.2-windows\cgminer-3.7.2-windows\cgminer.exe --scrypt --url stratum+tcp://eac.us1.hackshard.com:3333 -u x -p x --intensity 13 --gpu-engine 955,955,971,971 --gpu-memclock 1500 --thread-concurrency 8192 --auto-fan --worksize 256 -g 2 -v 1 --lookup-gap 2
Can anybody see something i am missing that is denying me the 700+kh/s that people seem to be getting?
Any help is greatly appreciated!!!
Thanks
Jump to: