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Topic: Help with 11221-07-20G (Sapphire R9 280X OC Dual-X 3GB GDDR5) - page 2. (Read 7079 times)

full member
Activity: 238
Merit: 100
also try
1030,1032,1040,1050,1060,1070,1080,1090,1100

If it's one card you aren't going to get much more than 720ish tops, more cards are needed to get 730s-765s on all of them.

My sapphire 280x's respond best to 11200 and either 1050/1500 or 1080/1500  1080 puts them in the 765s while 1050 is 740s.  The difference is I can undervolt huge at 1050 so it's more of a sweetspot.

I use VBE7 to undervolt from 1175 to 1100 which shows up as 1.019-1.039 is GPUZ.  Huge power and heat savings
newbie
Activity: 43
Merit: 0
What do you mean not stable? What's it doing?
Do you have just one card? Is it on a riser? What temperature is it getting to?
newbie
Activity: 12
Merit: 0
Hey man! I just setup a brand new rig an hour ago with 5 cards running at 735kh/s (same model as yours!) Smiley

Here's the config:

-I 13 -g 2 -w 256 --lookup-gap 2 --thread-concurrency 11200 --gpu-engine 1060 --gpu-memclock 1500 --gpu-powertune 20 --shaders 2048 --temp-target 69 --auto-fan

I tried a million different settings and found that this model maxes out at these settings. Moving the clock up kills the hash and changing the TC to 8192 also lowers it.

Try it and let me know how it goes! If you can squeeze out any more hash out of it please report back. Smiley

Trying it but it is not stable. I cant reach 700 stable. I dont know what is happening with my card...
newbie
Activity: 43
Merit: 0
Hey man! I just setup a brand new rig an hour ago with 5 cards running at 735kh/s (same model as yours!) Smiley

Here's the config:

-I 13 -g 2 -w 256 --lookup-gap 2 --thread-concurrency 11200 --gpu-engine 1060 --gpu-memclock 1500 --gpu-powertune 20 --shaders 2048 --temp-target 69 --auto-fan

I tried a million different settings and found that this model maxes out at these settings. Moving the clock up kills the hash and changing the TC to 8192 also lowers it.

Try it and let me know how it goes! If you can squeeze out any more hash out of it please report back. Smiley
newbie
Activity: 12
Merit: 0
newbie
Activity: 12
Merit: 0
Right now this is my configuration:

- ASrock Extreme 4 970
- AMD Phenom II X2 555 Black Edition Callisto 3.2GHz Socket AM3
- 4GB Ram Kingston
- Toshiba Sata3 1TB
- 11221-07-20G (Sapphire R9 280X OC Dual-X 3GB GDDR5)
- PSU Nox Urano TX 1050W
- Windows 8 fresh installed for this.
- Catalyst 13.12 (last version)

Right now im getting exactly 700khash. I want to know if it is possible to run it over it. I have all in a place with an stable temperature of about 10ºC to 15ºC.
Actual configuration to run cgminer from cgwatcher is: -I 13 -g 2 -w 256 --lookup-gap 2 --thread-concurrency 11200 --gpu-engine 1020 --gpu-memclock 1500 --temp-target 80

http://gpuz.techpowerup.com/14/01/22/874.png
http://gpuz.techpowerup.com/14/01/22/6xy.png
http://gpuz.techpowerup.com/14/01/22/ezq.png

I want to know if it is possible to go over 700khash, at about from 730 to 760.

Thank you.
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