Topic: Sapphire R9 290X Tri-X OC Hashrate? - page 3. (Read 36578 times)

Read the whole post I linked to. Each BIOS has a different fixed voltage, instead of variable voltage like the stock BIOS.  I just use the highest (normal) voltage BIOS unless that is unstable, in which case I try the last resort BIOS. If you care about tweaking power consumption, you can try lower voltage versions (maybe work your way up until stable).

You can also grab a multi-meter, or use GPU-z and follow Stilt's info on how to calculate the ideal voltage for each card.

Hi phzi

Thanks for your help the past couple of days, I've finally got my card stable and am ready to give the STILT bios a crack.  Can you please advise which link I need to download as there were several?  I have the Sapphire Tri-X OC 290X with bios version 015.042.000.000.000000 from GPU-Z.  The available BIOS were:

290X:

MBA_C6710101-100_K2_AGR_STILTMXT_V32.zip (DPM7 - 1.2375V)

MBA_C6710101-100_K2_AGR_STILTMXT_V36.zip (DPM7 - 1.2125V)

MBA_C6710101-100_K2_AGR_STILTMXT_V3A.zip (DPM7 - 1.1875V)

MBA_C6710101-100_K2_AGR_STILTMXT_V3E.zip (DPM7 - 1.1625V)

MBA_C6710101-100_K2_AGR_STILTMXT_V42.zip (DPM7 - 1.1375V)

MBA_C6710101-100_K2_AGR_STILTMXT_V46.zip (DPM7 - 1.1125V)

Thanks

This really isn't very true - it depends on the BIOS and memory timings.  There is no 'ratio' that performs better, and a properly tuned BIOS will continue to improve no matter how high you push the engine clock (up until crash of course).

It is true, I suppose, on certainly BIOSes that pushing the engines past a certain point will not provide benefit and may decrease hashrate, but if that's the case you should change the BIOS.

1200 for 3 cards and a 750 for 2 cards + mobo is more then enough.  Are you using powered risers?

I can run 3 off a 1000W and 2+mobo off an 850W, with heavy overclocks.

Word of advice: Don't just go higher with your GPU clocks, also go lower. There are sweet spots where increasing clocks actually reduces the hashrate. And no, this isn't caused by throttling.

Just go across the entire reasonable spectrum in 10 or 20 MHz steps and try everything.

Sorry for the confusion, it is running on a 1200 and a 750. I am thinking the 1200 can't handle it and going to test by adding another 750 I have laying around to verify the 1200's ability to provide 1080. 2700 watts should rule out any power problems. I am thinking it is a little weak when they are all at full hash. Even keeping the average I am doing, 4.55 Mh/s should be doable. I'll know in a few hours.

@DaZuru: You definitely cannot run 5 of these cards on a 1200W... you would be very lucky if you can even run 4 stable for extended periods of time.  I am impressed you have 5 running at all without the PSU shutting off.  Add a 750W or 850W for the last 2 cards.  5MH/s is unlikely - you might manage 980KH/s on a few cards (I do have one that can pull 1.002MH at 1125 engine), but you're more likely aiming for 940 on average or so (every card is different and will take a different engine overclock before becoming unstable).

@vvar10ck: You should be able to manage over 900 with xintensity of 800-1200, 1500 memclock, and whatever engine the card can take (try 1020 and work up; or try 1080 and work down).  The only disadvantage with that BIOS is that you probably can't run STILT's BIOS because you likely have a new model hynix memory onboard.  (on the plus side, you definitely have hynix memory if you are on .043)

My problem is I start messing with it around 10PM and then run out of patience. Messed with it again until 1:30 last night (this morning) and think my fifth card needs another power supply. Pushed I 20 to four cards and then the fifth would cause the dreaded driver failed and was restarted successfully, which is crap, because hash rates never recover without a reboot. Was at 1,080 watts on the 1,200 Corsair. I have another 750 and will try it.  If it is power, then I can mess with the xintensity again. I am hoping it is just frustrating due to the power issue. I just need to understand the math/ratio of threads to shaders. Time to go reading again!

I read through that huge Stilt BIOS thread, wow! I even gave him a post (I think under my real name?) to encourage him to keep coding. Some peeps will drive you crazy with entitlement issues. I have the Sapphire Tri-x OC R9 290 cards. Victim of Newegg price gouging. I like the two BIOS feature so I won't worry about bricking them when I get time to try Stilts' BIOSs. I keep running across stuff to try. Curious to see if the power issue is my problem and then see if the new BIOS will drop the power requirement down to only needing two power supplies. Fun puzzle to work through. If it wasn't for the fast SSD boot times, I would have thrown it out the window.  I have it stable at 4.19 Mh/s so I could sleep. Maybe 5 Mh/s if I can get power resolved and run Stilts BIOS? Now to go study your post about which version to try with my cards.

Thanks for the help!  I really try to read and figure stuff out without burdening people. So much info and noise to sort through.

Have a good one!

So guys - does anybody run cards that came with the 015.043.000.001.000000 BIOS with speed over 900 KH/sec? I've got 880-890 with CGMiner 3.7.1, Catalyst 13.12 and 1050/1500 clk/mem with MSI AB.

Did you use -f (force) ?

e.g.
atiflash -p 0 filename.rom -f

Hi

I attempted to flash the STILT bios (MBA_C6710101-100_K2_AGR_STILTMXT_V46.zip (DPM7 - 1.1125V) and got a SubsystemsID's mismatch error?  What am I doing wrong?  I have the 290x Sapphire Tri-x OC

I still can't get my hash rate above 600

Thanks!! Very helpful!

There is only one set of BIOSes by The Stilt for the 290/290X.  And there are only two posts you need to read:
https://litecointalk.org/index.php?topic=12830.msg121827#msg121827
and
https://litecointalk.org/index.php?topic=12830.msg125148#msg125148
(with the first being the important one)

They will work with all revision 1 Tri-X cards.  However, these BIOSes do NOT work with some Tri-X cards that came with the 015.043.000.001.000000 BIOS, because these cards support a new type of Hynix memory that is not supported by the previous BIOS revisions.  Not a big deal however, you won't brick your card by flashing - it just won't be able to detect it's memory and therefore won't work, but can still be re-flashed back to stock (which you can obtain here: http://www.techpowerup.com/vgabios/153454/sapphire-r9290-4096-140115.html)

I saw that earlier but haven't had time to read the whole thread yet. Are there different bios for reference and non-reference cards?

https://litecointalk.org/index.php?topic=12830.0

I tried BAMT, but didn't have much luck with it...

Can you post a link to the stilt bios for a tri-x r9 290 OC (non-x)?  Thanks in advance!

Have you tried Linux?  I hated the 290s on Windows, drivers were horrible.

Are these 290X or just 290s?  Once you get them stable, try The Stilt's BIOS so you can drop the memclocks down to 1375 but keep the same performance, and gives you more headroom on the gpu-engine.  If all of your cards run at 1500 memclock without crashing, then try pushing the engine up to 1060 - when a card goes sick, decrease only that card's engine by 10.

xintensity will increase your hashrate, period.  No reason not to use it.  What's not to like about a way better way to tune the number of threads launched that actually lines up with your number of shaders?

Running four cards, waiting on a riser for the fifth. Was unstable due to me not having a couple of meters to see my power draw!  Now I have a 750 and a 1200 watt power supply feeding it. Roughly 300 watts each card and 100 or so for the SSD and motherboard. It gets a little weird when I try to tweak settings but I have left it alone and running 3.64 Mh/s steady with four, hoping for 4.55 Mh/s tonight! Running around 73C with a floor fan on an open air case. Probably need to work on air flow upstairs. It is in the game room.

My amateur settings:

-o stratum+tcp://doge.joinaparty.com:22550 -u MYPAYOUTADDRESS -p MYPASSWORD -g 1 -w 256 --lookup-gap 2 --thread-concurrency 24550 -I 20 --gpu-engine 1022 --gpu-memclock 1500 --gpu-powertune 20

I tried the xintensity setting but it doesn't like it. Also trying P2P pool mining. Interesting concept. Connect to a node close to you.  You can browse or connect to test at http://doge.joinaparty.com:22550, no guarantees I will keep it running. Trying to find the best solution for me.

Daz

After running for a while. 76-78, its well ventilated