Topic: Sapphire Radeon R9 290 Tri-X OC - page 3. (Read 27841 times)

Here's my config for reliable 820 KHash

{
"pools" : [
],
"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"api-mcast-port" : "4030",
"api-port" : "4030",
"expiry" : "15",
"failover-only" : true,
"kernel-path" : "/usr/local/bin",
"log" : "2",
"queue" : "1",
"scan-time" : "15",
"scrypt" : true,
"auto-fan" : true,
"device" : "0",
"gpu-threads" : "1",
"gpu-fan" : "50-75",
"gpu-engine" : "947",
"gpu-memclock" : "1250",
"gpu-platform" : "0",
"gpu-powertune" : "20",
"intensity" : "18",
"temp-target" : "80",
"temp-overheat" : "85",
"temp-cutoff" : "95",
"temp-hysteresis" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "30592",
"no-pool-disable" : true,
"tcp-keepalive" : "30"
}

Hello,

I tried everything, but it seems that my two Sapphire Tri-X R9 290 couldn't be underclocked below the default values - GPU Core - 1000 MHz, Memory - 1300 Mhz - I set for example GPU core at 947 and Memory at 1250, but when I look in GPU-Z (latest version) I see that the default values are shown and the change haven't been applied. I tried setting this in CGMiner 3.7.2, SGMiner and with Afterburner. I can set a higher clocks (like 1080/1500, or 1060/1499), but then the driver keeps failing and only the second GPU is actually working (at around 950 MH/s) and the first one isn't mining at all.

For the moment they are both stable in the same time only at default clocks (1000/1300) where I get 882KH/s per GPU.
I've tried to tick the jumpers on the cards, but the system haven't even start, so I've reverted back the change.

I am using 8 GB ram, Win7x64, Catalyst v13.12. My SGMiner config is the following:

"intensity" : "21,21",
"gpu-threads" : "1",
"vectors" : "1,1",
"worksize" : "512,512",
"lookup-gap" : "2",
"thread-concurrency" : "32765,32765",
"shaders" : "0,0",
"gpu-fan" : "50-85,50-85",
"gpu-memdiff" : "0,0",
"gpu-powertune" : "20,20",
"temp-cutoff" : "92,92",
"temp-overheat" : "85,85",
"temp-target" : "72,70",
"auto-fan" : true,
"log" : "5",
"no-pool-disable" : true,
"scan-time" : "60",
"kernel-path" : "/usr/local/bin"
}

Excellent! Thanks!!

As long as you quit with Q rather then by pushing the X on the titlebar, the stock fan speeds should be restored.

Haha that's what I'm doing. I thought therw was a way for it to auto-reset things as I exit the miner? No?

Anyone tried a different BIOS?

I flashed a few, then when I reboot into windows CGMiner swaps my cards around, and detects the R9 290 in slot 1 and my 7870 in slot 0...

Flash back original BIOS and it goes back to normal.

Any ideas?

I tried moving my mem clocks up to 1500 but ended up putting back to 1350. I read on LTCtalk that 1250 is better. Will be trying when I have a chance. Right now I get 880 with 1000/1350. I want to see 900-950 stable.

Good rate but i have seen better ones try to play with voltage...

I will try that. Mine right now is 1000 / 1420. 883 khs at intensity 20.

Downclock mem from 1350 to 1250, you will see better performance. I have yet to see any R9 290 that hash scrypt well at anything other then 1250 or 1499/1500 mem clock, and I personally run 24 of these cards, and have tuned many more for others.

Basically, R9 290s either 'take the mem overclock' aka handle 1499 mem, or they don't. After you determine that, find your max stable engine by increasing to 1020, and then decreasing or increasing in increments of 10. Only decide an engine clock is stable after 24hr.

My whole system eats 390-400 watts on the wall using a watt meter.

i5 4670k
CM Hyper 212x
GA Z87x UD3h
2 x 4gb DDR3 RAM
One HDD
seasonic bronze m12ii 750 watts
r9 290 tri x
5 fans with led

some Sapphire R9 290 Tri-X won't run stable if you run it with 1000/1300 when using SCRYPT algorithm. Seems like a fault in some batches.

Why did you down clocked it?

I'm currently using 947/1250 for a R9 290 Tri-x for 825 KHash.

Kind of disappointed, I could have got a 280X almost at this hash rate.

Although it's been around 25 degrees in Auckland (NZ) lately, even wiath fan at 75% my GPU temp gets to around 82.

I have both elpidia and hynix cards...

Use MSI afterburner then click reset.

I am using them, and client from my first groupbuy is using them aswell I am getting 3100Kh/s 1230W, no undervolting. 4 cards

I still have 11 cards left for sale in my second groupbuy, feel free to join!
https://bitcointalksearch.org/topic/m.4928032

Here is his settings and power usage:
https://bitcointalksearch.org/topic/m.4804508


Oh sorry, its 290... I was talking about 280x.. I didn't even knew there is tri-c for 290..

not on hynix cards mate..r9 290 with elpidia and with hynix meories are 2 completly different cards and require complety different tunning..what You said is completly right for elpidia models. If I go 1499 or 1501 my hashrate drops a lot, but not on hynix one's.

On the R9 290, usually memclocks between 1250 and 1499 will decrease performance.  If you can't hit 1499/1500 memclock, then use 1250.

I have received 2x R9 290 Sapphire Tri-x (hynix). They are both totally different, I disconnected all of the cards and were running just them to fine tune. In gpu-z they have 84% and 76% asic quality, funny is that the lower one behavies better. I’m minning vertcoin which is using different scrypt but on reference cards usually clocks didn’t change for me much. What I find is that probably both cards can’t run on 1500 memory clock.
First card
1025-1040/1475 seems to be ok.
Second cards
Anything higher than 985-990/1450 and I get artifacts/HW errors. With 980/1500 I got HW right away, with 980/1475 left over night, I wake up and found 7HW..I left it now with 980/1450 and will see afternoon if any HW comes..
Both cards doesn’t tolerate undervolting (even -6mv gives artifacts and soon after freeze).
They are hashing nice, around 470 and 455 on Vertcoin which is 50% of scrypt performance.
I don’t understand why they can’t handle 1500Mhz, and one even 1000Mhz on engine if they are reference. My 3 other reference cards go no problem 1020/1500 (elpidia) with -19mv..And those 2 are hynix which supposed to be better.
p.s. Even if I’m able to run stable with 1025/1475 on 1st and 980/1450 on another one, as soon as I stop minning I got computer freeze few seconds/minutes later , which is not the case on reference cards and it indicates that even these clocks are to much for them..What I like in these cards is extreme LACK of noise they run super quiet, around 70 degrees with 60% fan. WOW!!