Hd7970 over 700khs with reaper guide !

[BBQKorv]

I'm also interested in this, PM me the details and if it works you get a donation.

[tacotime]

Already posted settings... see sig thread

[bdub]

Already posted settings... see sig thread

Tacotime, your thread was the first place I started when configured my setup, thanks for that by the way.  However, I am only able to output around 515kh/s using the config settings you posted.  Here's what I've tried to no avail:

My system: Win 7 x64 (i7 920, 16GB Ram, XFX 7970 Black 1Ghz)
Drivers: I've tried 12.7, 12.8, 13.1, 13.2 beta 7 (12.8 worked best)
SDK: I've tried 2.6, 2.7, 2.8 (doesn't seem to change hash rate so stuck with 2.

Core: 900 Memclock: 1575

Reaper Config:

Code:

Host xxxx
....
protocol litecoin

worksize 256
vectors 1
aggression 13
threads_per_gpu 1
sharethreads 32
lookup_gap 2
gpu_thread_concurrency 21712

For some reason aggression 13 works better than 20 on my card and looking at the listings in the Litecoin Mining Hardware comparison https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison that's getting the best results.  I'm stable at 20 but hash rate is reduced significantly.  I've also tried a bunch of different thread concurrency settings without any luck.  I'm considering returning this card and just getting another 5970 but I'd like to see if I can max out the settings for comparison before I do that.

I also tried CGMiner but got around the same numbers.  Any help would be appreciated.

[tacotime]

They're using core speeds up to 1100 mhz and reaper with aggression 18, 19, or 20. They're also running the memory up to 1800 mhz+ by overvolting it in afterburner (eg 1.7v instead of 1.6v stock).

And obviously set power limiter to +20%.

The only other thing they do differently is set share threads = 5 and don't set the vectors value to anything, so try that too I guess.

[dlauth]

So the goal is to keep a .57 ratio?  1000/1755, 1100/1930 etc....

And by saying vectors values are nothing does that mean 0 or leave it stock?

[tacotime]

Yes

And just don't put it in the config

[dlauth]

I'm using a 7950 BTW.

950/1670

Work 256
Aggress 20
Share 5
Concurrency 24576

I removed vectors

Getting 2.5% GPU errors now

[dlauth]

When going back to

1050 volt
20 power
1000 core
1450 mem
1600 mem volts

I'm getting 540mhs with 1.5% stale and 0 GPU errors.

 I want moar hash!