3x7970 Mining Results. - page 3. | Bitcointalksearch.org

Frizz23

hero member

Activity: 1162

Merit: 500

Quote from: Roadhog2k5 on January 10, 2012, 01:57:58 AM

Water Cooling:
Mining: 1200/150mhz, 1.17v, 251W - 700mh/s
Mining: 925/1375mhz, 1.17v, 190W - 550mh/s
Mining: 925/340mhz, 1.17v, 171W - 550mh/s
Mining: 925/340mhz, 880mv, 115W - 550mh/s
Mining: 925/340mhz, 865mv, 112W - 550mh/s
Mining: 925/150mhz, 865mv, 109W - 550mh/s

How did you manage to downclock your memory to 150MHz?

With Sapphire TriXX or MSI Afterburner I can only go down to as low as 685MHz.

sveetsnelda

hero member

Activity: 642

Merit: 500

Quote from: ?? on ??

I had the same problem with memclock, I was able to set it down to something like coreclock-125. The difference may have been greater than 125, I might be confusing that with 69xx.

I fixed it by running the latest beta version of Afterburner, going into the saved profiles (ini file) for my card, and setting the default/profile memclocks to 300,000. With that, Afterburner lets me select memclocks from 150-300MHz. "Reset" still brings the card back to 1375 on the mem, despite what I have set in the profile.

There's something wrong with the newest version of Afterburner. I could not change it after updating either. 2.2.0 Beta 10 will let you change it.

Keninishna

hero member

Activity: 556

Merit: 500

Have you tried catalyst? It should let you go down to 150 on mem.

PcChip

sr. member

Activity: 418

Merit: 250

I just got my 7970 in today to replace my 2x GTX570 SLI setup. I'm playing with DiabloMiner for the first time (back in the day I used to always use Phoenix + CGMiner), and getting ~660 MH/s with 1125MHz core, however I'm having trouble downclocking my GDDR5 VRAM.

Any changes I make to the RAM don't stick (as reported by MSI Afterburner and GPU-Z), I've tried using TriXX and Afterburner to lower the ram speed, but it just sits there at 1375.

I have noticed that when I try to set exactly 1000 it actually works, and that's where I have it sitting currently.

I'd like to get it down to where I used to mine with my 58x0's (300 MHz, or 302 MHz depending on the card)

Thanks for any ideas!

SlaveInDebt

hero member

Activity: 699

Merit: 500

Your Minion

For sure going 3x7990's water cooled for the house. Cheesy

Roadhog2k5

full member

Activity: 131

Merit: 100

Added watercooling results to the first post.

ArtForz

sr. member

Activity: 406

Merit: 257

Quote from: ?? on ??

Quote from: Tomatocage on January 28, 2012, 06:10:55 PM

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I think that's a new record!

Sorry if that wasnt clear, but my MSI 7970 runs way to hot to overclock it, even undervolted at stock speeds it sits at 79C my 5870 sits at 67C (though I had to replace thermal paste to achieve this). Unless there is some way to get my 5870 to use SDK and my 7970 to run on SDK 2.6 at the same time, my 5870 isnt running at optimal speed.

Currently im pulling 968mh/sec 415 watts total. 6550@650mhz 5870@885mhz and 7970@925mhz

You either got a bad card or some seriously bad case airflow there...
0. SI TAHITI XT (:0.0)
engine clock 1170MHz, memory clock 1070MHz, core voltage 1.17VDC, performance level 2, utilization 99%
fan speed 43% (2408 RPM) (default)
temperature 72 C
Powertune 10%

DiabloD3

legendary

Activity: 1162

Merit: 1000

DiabloMiner author

Quote from: ArtForz on January 28, 2012, 07:27:32 PM

Quote from: DiabloD3 on January 28, 2012, 07:01:34 PM

Quote from: Tomatocage on January 28, 2012, 06:10:55 PM

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I think that's a new record!

Oh man. Thats over twice as fast as my 5850 at 960.

Read carefully, that's a 5870 *and* a 7970... 880Mh is awful.
7970 is ~550Mh/s stock
5870 is ~380Mh/s stock
so that's > 5% slower than what they should be doing...

Feh, False advertising.

ArtForz

sr. member

Activity: 406

Merit: 257

Quote from: DiabloD3 on January 28, 2012, 07:01:34 PM

Quote from: Tomatocage on January 28, 2012, 06:10:55 PM

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I think that's a new record!

Oh man. Thats over twice as fast as my 5850 at 960.

Read carefully, that's a 5870 *and* a 7970... 880Mh is awful.
7970 is ~550Mh/s stock
5870 is ~380Mh/s stock
so that's > 5% slower than what they should be doing...

DiabloD3

legendary

Activity: 1162

Merit: 1000

DiabloMiner author

Quote from: Tomatocage on January 28, 2012, 06:10:55 PM

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I think that's a new record!

Oh man. Thats over twice as fast as my 5850 at 960.

Tomatocage

legendary

Activity: 1554

Merit: 1222

brb keeping up with the Kardashians

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I think that's a new record!

Mushoz

hero member

Activity: 686

Merit: 500

Bitbuy

Sorry if this has been asked before, but at what temperatures are your cards running and how are you keeping them cool? Are you running them in a case? And if so, what case are you using?

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

Quote from: buttons252 on January 25, 2012, 10:39:08 PM

Quote from: -ck on January 25, 2012, 08:59:21 PM

That's fantastic thanks so much Grin

I committed a little more 79x0 specific code and built a windows binary. Again, no idea if it works, nor if it performs, but here is a windows build:
http://ck.kolivas.org/apps/cgminer/temp/cgminer.exe

Just drop it into a 2.1.2 directory, replacing the existing exe.

with this new cgminer.exe at first it said my 7970 failed to start, but once in cgminer i enabled it and it started hashing
my 7970 is getting 384mh/sec 925mhz .9V
my 5870 is getting 349mh/sec 850mhz
338watts at wall

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I just noticed my 7970 is showing A:0 R:0 HW:53 doesnt look like its accepting any shares?? Using diablominer now.

Thanks. I guess it's still horribly broken then.

buttons252

full member

Activity: 406

Merit: 104

Quote from: -ck on January 25, 2012, 08:59:21 PM

That's fantastic thanks so much Grin

I committed a little more 79x0 specific code and built a windows binary. Again, no idea if it works, nor if it performs, but here is a windows build:
http://ck.kolivas.org/apps/cgminer/temp/cgminer.exe

Just drop it into a 2.1.2 directory, replacing the existing exe.

with this new cgminer.exe at first it said my 7970 failed to start, but once in cgminer i enabled it and it started hashing
my 7970 is getting 384mh/sec 925mhz .9V
my 5870 is getting 349mh/sec 850mhz
338watts at wall

with diablo miner im getting 880mh/sec from same cards same speeds
but 388watts at wall

I just noticed my 7970 is showing A:0 R:0 HW:53 doesnt look like its accepting any shares?? Using diablominer now.

Roadhog2k5

full member

Activity: 131

Merit: 100

Got waterblocks for my 7970's on the way. I will post power usage with the cards under water too.

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

That's fantastic thanks so much Grin

I committed a little more 79x0 specific code and built a windows binary. Again, no idea if it works, nor if it performs, but here is a windows build:
http://ck.kolivas.org/apps/cgminer/temp/cgminer.exe

Just drop it into a 2.1.2 directory, replacing the existing exe.

jjiimm_64

legendary

Activity: 1876

Merit: 1000

Quote from: -ck on January 25, 2012, 07:54:06 AM

I'll try and find access and time to get a windows binary tomorrow.

thank you ck.

btw, we are halfway there on the donations for a 7970. and I did get a sapphire

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

I'll try and find access and time to get a windows binary tomorrow.

Roadhog2k5

full member

Activity: 131

Merit: 100

Yeah, a compiled windows would be nice to test.

jjiimm_64

legendary

Activity: 1876

Merit: 1000

Quote from: -ck on January 24, 2012, 07:25:29 AM

Well, I think I've gotten the current cgminer git tree to support 79xx cards, but I have no one to test them. I certainly am not expecting any kind of magic performance out of the box. Anyone not afraid to try a git build care to give it a go? At this stage I'd at least like it to actually work rather than produce garbage which the current stable release does.

ck:
I only have the 7970's on windows, and I have yet to compile your source. any chance on a beta windoz binary for me to test?

Jim

Topic: 3x7970 Mining Results. - page 3. (Read 61647 times)