SAPPHIRE R9 290 4GB

[Rubberduckie]

Has anyone got this card, If so whats are temps like?

[Philopolymath]

I run 3 in one rig all at 95, all day, all night

[Aknoth]

i have 8 at 72C lot of noise

Philopolymath whats ure configuration? cg miner and hardware plz ?

[Philopolymath]

Are you kidding you think I would give those MAGIC numbers away for free when it took me MAN MANY days of tweaking to find them...
That's many days NOT mining but crashing 100's of times..
I can also say for me the numbers on the hardware charts are useless..
READ the cgminer GPU README follow the steps and you can get max eff also..No secret..
I have several boards and machines and numbers were same for all
so story about set-up being diff for each board are not valid IMHO
I ran them alone/3 together..with other cards..all same result for my best specs..NO undervolting
Also best spec can be reached at 3-4 different MEMclock settings..
example 1875,1745,1345 all needed their own different engclock # but gave same end result (Not ACT memeclock specs used)
but 1875 crashed very often
USE GPU tweak (Comes with driverdisk) to FIND the SHADERS for the Hawaii then follow the Instructions in GPU README
Try 4x,5x,...EIGHT!!!xxx hint hint for best T.C....DON'T USE the T.C. from the BIN file..LOWER is BETTER
FYI -w 256/512 DOES NOTHING don't even add it...So say GPU read me..I agree

last trick is find max eff THEN & and ONLY then increase -i
Also power tune is near useless and WILL change your engclock EVEN if you have auto GPU DISABLED
But you can still use power tune as last push/resort to get engclock to bump up to your magic number AND powertune will at same time give last boost 5-15% to top hashrate...THEN your DONE!!! LOCK those numbers in and let'm fly..


I can tell you the best I got was 954 each as sustainable avg hashrate but they run HOT and fans are almost always at 100%
And that is in OUTDOOR near freezing temps..because I have 3 on one board all very close to each other..

[mac-coin]

Hi try these

With the following I got 890 k/hs

Pulling 365watts at the wall per card

thread-concurrency 20481
I 20
gpu-engine 1015
gpu-memclock 1500
gpu-powertune 20

Temps are 72c but this is in a 10c room.  1 good trick, remove the mounting back plate, it lets the air flow quicker, dropped my temps by 5c, plus with the temp drop, saved 10watts per card


By I run mine with the following setting

850 k/hs

Pulling 330watts at the wall per card

thread-concurrency 25960
I 20
gpu-engine 950
gpu-memclock 1250
gpu-powertune 20

Temps are 68c




If I've helps  DOGE  DBMmZ7gMt3DB9QYdmUiWKQvLfSi42Sy7no

[iikun]

These cards are fine to run at high temps but the issue will be noise. I'm seriously not kidding when I say they sound like a jet engine.  If the noise gets to you they run cool & at a low humm once you've switched the reference cooler to an arctic xtreme