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Showing 20 of 131 results by Roadhog2k5
Yes you can... Just put a load on the cards when changing the clocks.
Show me a way to do this automatically please. People who mine want as much automation as possible.
It doesn't matter what your idle usage is.. you're mining bitcoins.. the card shouldn't be idle.
It does matter if you're going to matter card consumption by delta.... as I've stated time and again.
cgminer.... Plus you said it wasn't possible anyways. Just saying it is possible.
You have something wrong if your card is drawing 40 watts idle. They should be <15 watts idle with the screen on and they drop to <5 watts idle with the screen off.
That's with ULPS on. Multi-card miners can't run with ULPS on and still overclock the cards.
Yes you can... Just put a load on the cards when changing the clocks.
Measuring delta doesnt measure the MH/W of the card accurately either. If you measure idle power and then add to delta, that would give you the true power in order to figure out the card MH/W. The idle power of these cards aren't exactly negligible compared to the load power. Mine sucks up ~40 watts idle.
You have something wrong if your card is drawing 40 watts idle. They should be <15 watts idle with the screen on and they drop to <5 watts idle with the screen off.
worked, thank you
anyway to get the mem voltage lower than 1500
No, lowering the memory voltage is pointless. You will only save 1 watt tops.
How did you get your memclock < 710? Did you bios flash?
No, Just used MSI Afterburner.
I don't think it works anymore, I changed to mode=2, moved the slider all the way down to 340, saved, closed, reopened and the slider was still all the way down to 340
Close it and delete the 3 .cfg files that start with VEN at this location. \MSI Afterburner\Profiles\
When you start it again and it asks you to reboot just hit no.
Notice how none of those cover the edges of the cpu. Now pretend that CPU is a bare die. If you can't see the problem with a bare die not being covered completely you shouldn't be messing with your heatsinks. For a bare die the best method is to paste it in an X from corner to corner of the die with more than enough paste than you will need so you will know 100% of the die will be covered.
What you are seeing is true. I lost about 42watts per 7970 while switching to water cooling.
You can see my results here: https://bitcointalk.org/index.php?topic=57410.msg683755#msg683755
You can see my results here: https://bitcointalk.org/index.php?topic=57410.msg683755#msg683755
Yeah but he's talking about 50W per card. Do the stock fans really consume that much power? I have a full size box fan that doesn't even use that much.
yep
What you are seeing is true. I lost about 42watts per 7970 while switching to water cooling.
You can see my results here: https://bitcointalk.org/index.php?topic=57410.msg683755#msg683755
You can see my results here: https://bitcointalk.org/index.php?topic=57410.msg683755#msg683755
Re: DiabloMiner GPU Miner (LP, BFI_INT, async nw, multipool, 79xx GCN)
is it super duper faster yet?
How did you get your memclock < 710? Did you bios flash?
No, Just used MSI Afterburner.
I found HWinfo was pretty much in line with my calculated figures.
https://bitcointalk.org/index.php?topic=57410.0
@Roadhog2k5, you might be onto something here. Let me research this, then we can talk about the reward.
Do you mind specifying which case/pressure puller you got?
Do you mind specifying which case/pressure puller you got?
The case is an ATCS 840. It comes with the little fan box you see. I don't see why you couldn't make a test box out of some cardboard and tape.
For the fan I just had a 120x38mm fan laying around that I used in it. You probably want a 120mm fan that is about 2500 - 3000rpms.
Or something like this. http://www.sidewindercomputers.com/de12trblhisp.html
OR... http://www.sidewindercomputers.com/de12tfexhisp.html If you don't care about noise. Both fans will be loud however.
The last fan would be best on a fan controller so you can find a nice balance between temps and noise. It is also capable of the highest static pressure, which you want.
The power savings is substantial, but it's certainly not 40 watts per card (unless you were running the cards very hot on air in the first place). My water cooled 7970 machine saves about 27 watts (DC) per card (at 36-37c). Keep in mind that some of the apparent power savings is simply from not having fans on the cards though. Some of this power to remove the heat gets consumed by the pump and radiator fans.
They were running about 85c on air. So pretty warm. Went to about 40c on water. The fans do count as power savings in my case too. I already had the cpu watercooled and just add my gpu's to the same loop. No extra pumps, fans or anything.
That's pretty slick for guys running cased rigs. Never really thought about pulling air through the heatsinks but that'll work great for cards that don't also vent to the case(mostly reference cards).
Yeah it worked fantastic. I just taped off some areas so it would seal better.
Hello,
I have 4 x 7970. They constantly overheat causing my PC to shut down.
I have previously tried to cool them with a stand-alone fan blowing through a copper coil filled with water.
This way is not so efficient. PC still shuts down.
I am putting up bounty [1BTC] for the best idea on cooling.
Maybe there is someone out there who's got it figured out.
Thanks for participating.
I have 4 x 7970. They constantly overheat causing my PC to shut down.
I have previously tried to cool them with a stand-alone fan blowing through a copper coil filled with water.
This way is not so efficient. PC still shuts down.
I am putting up bounty [1BTC] for the best idea on cooling.
Maybe there is someone out there who's got it figured out.
Thanks for participating.
Simple. Get a high cfm/high static pressure fan, and mount it on the back of the case. The fan on the 7970 is designed poorly it seems like.
My case comes with a fan box that goes on the back for the gpus. I used it with my 7970's on air and it caused a massive temperature drop for them. The fans on the cards barely went off idle while mining they were running that cool. You should be able to build something similar.
