Quote from: Atomicat on March 31, 2015, 02:00:12 PM

Quote from: oncloud9 on March 31, 2015, 10:27:10 AM

I looked through the forum and seen members talking about afterburner so got that and I am getting 22Mhz at 70c if i could get it cooler that would be great but I think 70c is about what I was getting gaming so I dont think its that bad

for some reason the speed has dropped right down today when I go to mine Sad

@echo off
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer.exe -k myriadcoin-groestl -o stratum+tcp://europe1.myriadcoin-groestl.miningpoolhub.com:20479 -u *****.11****9 -p x -I 16 -g 2 -w 64 --no-submit-stale --failover-only --gpu-engine 1025 --gpu-memclock 1250 --gpu-powertune 0

http://i219.photobucket.com/albums/cc271/baz80/Capture_zps936sjizn.jpg

Ok, looks like a few people here so I'll keep it public. Hopefully learn something myself and get a tip or three on bioses for this card. So here's what's happened with your hash rate.... but first... you'll need an important tool, best damn info tool I've seen in decades. AIDA64.

http://www.aida64.com/

http://www.guru3d.com/files-details/aida64-download.html

Get that and get real familiar with what's behind the first tab, Computer, Sensor. You'll see a lot there that you'll need to know. Specifically, there is not just one temperature on your GPU, there are three listed for these cards. There's your shader, the chip, and then there are the all-important and harder to cool VRM's, Voltage Regulator Modules. Here's a picture of the layout of the R9-290 via Overclock.net. GO THERE! Haunt it! Live there!

http://i.imgur.com/hb27Pge.jpg

http://www.overclock.net/f/72/ati-cooling

So here's what's happening when your hash rate drops. Basically you're running up against a power limit, threshold, and it's throttling back. You can see how many watts your card is pushing in that sensor log, right at the bottom along with all the voltages for your card. We used to just "push it till it moves" but that's changed with the R9 series. To get my stable 1170/1350 I used Afterburner to set Core Voltage at just +75. Then I nudged it back to it's next slot at +69. I'm pretty sure that the next notch is crashola. Try this... Set your Core Voltage at +100 and your core clock up to say 1175, whatever you know it'll take. Hit Detach on the top right panel, now you can see all the gauges. Start up Heaven 4.0, windowed, and let it rip on Extreme. You should see it go for that clock, then throttle back. Check your wattage on Aida64, there's your power limit. As you drop that core voltage you'll see it throttle less and less. Now you should have enough to find your highest clocks for mining whatever. Just start up SGminer, find the balance. I'm going to have to be a bit abrupt here because I'm totally exhausted, three days up, and crashing hard. This should give you a good start though and essential tools. By the way, the way I get my cards to run as cool as Miles Davis is by fitting a CPU water-cooler on them, and there are some real cheap ones like the Cooler Master Seidon series which have mounts that are absolutely perfect for this. Check the spacing on these screw holes...

http://images.bit-tech.net/content_images/2013/01/cooler-master-seidon-120m-review/seidon120m-2b.jpg

Dunno why this went UP in price, because it was the first and cheapest liquid cooler I bought years ago, for sixty bucks Canadian.

http://www.memoryexpress.com/Products/MX42382

Keep an eye out for a used one you can snap up cheap. Cheap... I TOTALLY lucked out a couple of years back and scored not one but TWO Thermaltake 2.0 (or 3.0, can't tell) units for $22 Each! Mounts for them are also very easy, couldn't find a picture though, sorry. Why so cheap? Oh, they had the wrong firmware on them. Oh snap, what a... nothing really. Really gotta update these pictures, show the mounts and all, later, after sleep.

http://i633.photobucket.com/albums/uu53/acatphoto/Tech/BadGirl02.jpg

http://i633.photobucket.com/albums/uu53/acatphoto/Tech/BG_Detail01.jpg

7950 @ 1200/1600, and never over 50C. G'night!

+1 Atomicat Thank you I already have my CPU custom water cooled and I have got a 360 rad waiting to go on the GPU when I have the money to buy the waterblock and backplate so hopefully that will help Is my batch file correct? I copied it off different post in this section