7990 Tahiti setup / voltage? | Bitcointalksearch.org

NoLifeKing666

newbie

Activity: 39

Merit: 0

Quote from: shaber122 on November 11, 2013, 10:58:03 PM

set 4x120mm fan on the side wall of the blow-out

http://s020.radikal.ru/i710/1311/2b/4e66b961bab6t.jpg

How is possible.. ? ._.

I've got a Sapphire HD 7990 and..

https://i.imgur.com/NMC49Nl.png

-----------------------------------------------

EDIT:

MY BAD
Sorry..

I had not setted up in the miner " --no-submit-stale "

NOW IT WORK AWESOME!

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: massnerder on November 13, 2013, 05:19:59 PM

that's right. i have 4 of them all using those settings, all running at 640khs and 70c

Mine is running at 640khs and 64c, thank you but they weren't needed.

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

Quote from: Lauda on November 13, 2013, 04:29:24 PM

Quote from: massnerder on November 13, 2013, 03:35:00 PM

7950 I use core 1100 mem 1650 voltage 1100 threadconc 24000 i 20 w 256

For the sapphire card?

that's right. i have 4 of them all using those settings, all running at 640khs and 70c

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: massnerder on November 13, 2013, 03:35:00 PM

7950 I use core 1100 mem 1650 voltage 1100 threadconc 24000 i 20 w 256

For the sapphire card?

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

7950 I use core 1100 mem 1650 voltage 1100 threadconc 24000 i 20 w 256

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: massnerder on November 12, 2013, 01:50:15 PM

Use msi afterburner beta version to undervolt, i believe all the details are posted earlier in this thread

I see only settings for the 7990.

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

Quote from: Lauda on November 11, 2013, 11:59:01 AM

Quote from: massnerder on November 11, 2013, 11:53:39 AM

Quote from: Lauda on November 11, 2013, 11:47:59 AM

Quote from: massnerder on September 08, 2013, 01:09:49 AM

did you try core 1050? that's the only difference in my settings and i am getting 1.43mhs, but my temps are higher too, 81/73

You're getting 1.43 from this one card?
The temps are okay, mine are usually around 80-84 on both GPU's (2x 7950s).

Yes. To be fair, this one card is technically 2x 7970 on a single bus, but yes I get over 1.4mhash with my 7990.

My 7950s run at / below 70c, they do 640khash per card and are volted down to 1100... can't remember what clock speeds I am using

I didn't volt mine down. How did you do that?
Which models do you use? Could you provide cgminer configs for comparison?

Use msi afterburner beta version to undervolt, i believe all the details are posted earlier in this thread

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

That's an acceptable temperature.

shaber122

full member

Activity: 143

Merit: 100

set 4x120mm fan on the side wall of the blow-out

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: shaber122 on November 11, 2013, 01:25:33 PM

bfgminer.exe --scrypt --worksize 256 --shaders 2048 --lookup-gap 2 -g 2 --thread-concurrency 8192 --intensity 13 -o stratum+tcp://XXXXXXXXXX.com:5555 -u username -p pass --scan-time 1 --queue 4 --no-submit-stale

You do realize that this temp is too high and will likely cause a hardware failure in the future?

shaber122

full member

Activity: 143

Merit: 100

bfgminer.exe --scrypt --worksize 256 --shaders 2048 --lookup-gap 2 -g 2 --thread-concurrency 8192 --intensity 13 -o stratum+tcp://XXXXXXXXXX.com:5555 -u username -p pass --scan-time 1 --queue 4 --no-submit-stale

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: massnerder on November 11, 2013, 11:53:39 AM

Quote from: Lauda on November 11, 2013, 11:47:59 AM

Quote from: massnerder on September 08, 2013, 01:09:49 AM

did you try core 1050? that's the only difference in my settings and i am getting 1.43mhs, but my temps are higher too, 81/73

You're getting 1.43 from this one card?
The temps are okay, mine are usually around 80-84 on both GPU's (2x 7950s).

Yes. To be fair, this one card is technically 2x 7970 on a single bus, but yes I get over 1.4mhash with my 7990.

My 7950s run at / below 70c, they do 640khash per card and are volted down to 1100... can't remember what clock speeds I am using

I didn't volt mine down. How did you do that?
Which models do you use? Could you provide cgminer configs for comparison?

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

Quote from: Lauda on November 11, 2013, 11:47:59 AM

Quote from: massnerder on September 08, 2013, 01:09:49 AM

did you try core 1050? that's the only difference in my settings and i am getting 1.43mhs, but my temps are higher too, 81/73

You're getting 1.43 from this one card?
The temps are okay, mine are usually around 80-84 on both GPU's (2x 7950s).

Yes. To be fair, this one card is technically 2x 7970 on a single bus, but yes I get over 1.4mhash with my 7990.

My 7950s run at / below 70c, they do 640khash per card and are volted down to 1100... can't remember what clock speeds I am using

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: massnerder on September 08, 2013, 01:09:49 AM

did you try core 1050? that's the only difference in my settings and i am getting 1.43mhs, but my temps are higher too, 81/73

You're getting 1.43 from this one card?
The temps are okay, mine are usually around 80-84 on both GPU's (2x 7950s).

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

Quote from: carly200 on November 11, 2013, 04:31:18 AM

at 27 euro-cents per kwh + going up next year it so much is worth it.
(or not mining at all) ;-)

that means your 7950 setup is working on the "high hasrate" side and not power optimized, right?
what about the 7990? do you feel it is setup at its speed limit, or more for stability, or for saving power?

no, both of my setups are undervolt/overclocked and running about as fast as I could get them to be. you could run either of these setups slower than I do and save some power, but at that rate you may just want to buy cryptos instead of video cards + electricity

carly200

full member

Activity: 196

Merit: 100

at 27 euro-cents per kwh + going up next year it so much is worth it.
(or not mining at all) ;-)

that means your 7950 setup is working on the "high hasrate" side and not power optimized, right?
what about the 7990? do you feel it is setup at its speed limit, or more for stability, or for saving power?

massnerder

sr. member

Activity: 308

Merit: 250

No power in the 'verse can stop me.

No issues, no changes...

My 7950 setup has 4 cards and pulls around 1100w at the wall for 2.5mhash. The 7990 box is meant to be a gaming pc that also mines... but I haven't been gaming much on it lol.... maybe when mining doesn't make sense anymore I will catch up on my gaming Grin

... it pulls around 600w at the wall for 1.4mhash

I would go with 7950s if it is a dedicated mining only rig, the price difference in cards isn't worth the slightly better hashrates IMO.

carly200

full member

Activity: 196

Merit: 100

any long term issues? upgrades?

what hash and watt (at wall) are you currently running at? I just saw the values that ronaldinho_07 posted earlier (~850W - 1150/1200W)

I am figuring if the 7990 setup will give me better hash/watt than a 7950 setup or any of the new R9 cards.
Any suggestions?

thcst8

sr. member

Activity: 392

Merit: 250

thanks I'm down to 1050 now and it looks stable.

I'm now looking into water cooling but I have no clue what I need to buy. Huh

I have my eyes on the Swiftech Komodo HD7990

http://www.frozencpu.com/products/21261/ex-blc-1527/Swiftech_Komodo-HD7990_Full_Cover_VGA_Waterblock_w_Backplate_KOMODO_HD7990.html?tl=g30c309s1876#options

ronaldinho_07

sr. member

Activity: 476

Merit: 250

Quote from: thcst8 on September 07, 2013, 08:14:49 PM

Okay I am sitting pretty at 1.3ish mh/s with these settings:

GPU 0 - 74.0C
GPU 1 - 66.0C
1.29 Mh/s average

MSI Afterburner Settings:
Core Voltage (mV): 1080
Power Limit (%): +0
Core Clock (MHz): 1000
Memory Clock (MHz): 1250
Fan Speed (%): 100

cgminer settings: --thread-concurrency 8192 -I 13 -g 2 -w 256

Also this setup is more stable using the 13.10 drivers.

if core clock were 1080mhz,mem should be 1500
otherwise,trying 1050/1250

Topic: 7990 Tahiti setup / voltage? (Read 13953 times)