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Maxcoin tips for highest performance - Page 2

post #11 of 27
Quote:
Originally Posted by xref View Post

oh ok, though you are talking each card, well, I see that you use --thread-concurrency 32765, you can remove this part, you will never need it with sha3 keccak, maybe its the reason for the high temp
try running it after that at 1100 core clock without adding any extra volts, you might actually be able to reduce the voltage at 1100core clock
put your fans at 70% 24/7, myself getting 87temp max, and by the way, its 290x, its ment to run at 95c without a problem

if I get rid of --thread-concurrency then i need to go down to -I 14 vs 15 otherwise it does not seem to work. The speed remains the same though, so I will see if it effects the temp.

I know they say they are rated to run at 94c, but they can't possibly mean at that temp for weeks on end...

My first r290x was a gigabyte windforce 290x and it was a beautiful looking card but died after 5 - 8 hours of being new. I just don't want that to happen again. I'm not going 1mhz over the stock 1030 it came clocked at.

I was happy with 1 MSI 290x gamer, but it turns out that my decision to add the 2nd MSI gamer for crossfire was probably a mistake. http://forums.anandtech.com/showthread.php?t=2364119

Initially i thought something must be wrong with my newest MSI gamer, so i swapped them but it turns out that whichever card is topmost just can't cool down.

I have compensated somewhat by dremeling out a place for a 200mm fan directly over the topmost card and to hack 2 120mm fans in the top of my case blowing up to even airflow. Does help a lot as my case is spacious but outdated using 80mm fan technology.

I'm not sure if the temps are any different, with -I 14 my GPU1 is at 850mhz 70% fan 86c.

My 200mm fan really helps though, if i took the side off my case i'd be at 94c 750mhz 100% fan within a minute smile.gif
post #12 of 27
when I tried to mine with maxcoin ( 2 x 290 non x), one of my gpu is getting sick / dead on cgminer. how do fix it?

1100/625
Encoder PC
(12 items)
 
3D movies
(9 items)
 
HTPC/Gaming PC
(11 items)
 
CPUMotherboardGraphicsRAM
4770k asus grphton  4550 4GB (2x2GB) Adata Gaming  
Hard DriveCoolingCoolingOS
1x 750GB, WD 640GB, 4x 1TB ( 3x Seagate 1TB & 1... EK Supreme HF (acteal/nickel) Phobya NB Eloop fans  Windows 7 
PowerCaseOtherOther
antec BP 550w SM8 ST30 240 UT60 
MotherboardGraphicsRAMHard Drive
ASUS M5A99X EVO AM3+  3450 gskill DDR3-1600 Western Digital  
Hard DriveCoolingCoolingOS
Western Digital  Corsair H50 corsair SP120 Windows 7 
Case
Caselab M8 
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Encoder PC
(12 items)
 
3D movies
(9 items)
 
HTPC/Gaming PC
(11 items)
 
CPUMotherboardGraphicsRAM
4770k asus grphton  4550 4GB (2x2GB) Adata Gaming  
Hard DriveCoolingCoolingOS
1x 750GB, WD 640GB, 4x 1TB ( 3x Seagate 1TB & 1... EK Supreme HF (acteal/nickel) Phobya NB Eloop fans  Windows 7 
PowerCaseOtherOther
antec BP 550w SM8 ST30 240 UT60 
MotherboardGraphicsRAMHard Drive
ASUS M5A99X EVO AM3+  3450 gskill DDR3-1600 Western Digital  
Hard DriveCoolingCoolingOS
Western Digital  Corsair H50 corsair SP120 Windows 7 
Case
Caselab M8 
  hide details  
Reply
post #13 of 27
Quote:
Originally Posted by rickyman0319 View Post

when I tried to mine with maxcoin ( 2 x 290 non x), one of my gpu is getting sick / dead on cgminer. how do fix it?

1100/625

you have crossfireX disabled, correct?
post #14 of 27
Thread Starter 
Quote:
Originally Posted by bbond007 View Post

if I get rid of --thread-concurrency then i need to go down to -I 14 vs 15 otherwise it does not seem to work. The speed remains the same though, so I will see if it effects the temp.

I know they say they are rated to run at 94c, but they can't possibly mean at that temp for weeks on end...

My first r290x was a gigabyte windforce 290x and it was a beautiful looking card but died after 5 - 8 hours of being new. I just don't want that to happen again. I'm not going 1mhz over the stock 1030 it came clocked at.

I was happy with 1 MSI 290x gamer, but it turns out that my decision to add the 2nd MSI gamer for crossfire was probably a mistake. http://forums.anandtech.com/showthread.php?t=2364119

Initially i thought something must be wrong with my newest MSI gamer, so i swapped them but it turns out that whichever card is topmost just can't cool down.

I have compensated somewhat by dremeling out a place for a 200mm fan directly over the topmost card and to hack 2 120mm fans in the top of my case blowing up to even airflow. Does help a lot as my case is spacious but outdated using 80mm fan technology.

I'm not sure if the temps are any different, with -I 14 my GPU1 is at 850mhz 70% fan 86c.

My 200mm fan really helps though, if i took the side off my case i'd be at 94c 750mhz 100% fan within a minute smile.gif

yea i get know whats happening with your cards, i got the same problem with my first mining rig

the problem is with this kind of heatsinks is its release most of the air inside your case, the cover do not force it to push the air outside.

but when i went for reference cooler vacuum like ones, its totally covered and designed in a way that it push most of the air from the back side out your case, the hot air wont go to the top cards at all.
Edited by xref - 3/8/14 at 10:47pm
post #15 of 27
Thread Starter 
Quote:
Originally Posted by rickyman0319 View Post

when I tried to mine with maxcoin ( 2 x 290 non x), one of my gpu is getting sick / dead on cgminer. how do fix it?

1100/625

did your driver crash at some point? sometime after a driver crash you need to restart your pc to have your card not show as sick/dead.
post #16 of 27
Quote:
Originally Posted by xref View Post

i got 15x R9 290 devided into several rigs

all of them running at 460MH/s except 2 running at 455MH/s

my setting as following
using this CGminer http://maxdl.1gh.com/cgminer-windows.zip?nocache=0.7417075347620994

my bat file
cgminer.exe --keccak --no-submit-stale -o stratum+tcp://maxpool.1gh.com:17333 -u username -p password -I 14

on After burner

everything default except Core clock and memory

Core clock: 1100 - 1120
Memory: 625
Fan speed: 70%
Temps: 74 - 80c

hope this fix it for you, please share the results, you can also try changing vector from 1 to 2

EDIT: its a must to delete your keccak ~ .bin file after making changes to your bat file.
EDIT: dont go over -I 14, its will lower your hashing from 455mh to 0.5mh
Thanks for you setting.I run the same with my 290 tri-x now.
But in my place 290's price is double of 270x which I can get 240m/s with it.And 290 power consumption is nearly double of 270x.Can you dig out more power from 290?
post #17 of 27
Quote:
Originally Posted by xref View Post

yea i get know whats happening with your cards, i got the same problem with my first mining rig

the problem is with this kind of heatsinks is its release most of the air inside your case, the cover do not force it to push the air outside.

but when i went for reference cooler vacuum like ones, its totally covered and designed in a way that it push most of the air from the back side out your case, the hot air wont go to the top cards at all.

I'm pretty sure the heat is getting drawn out the top of the case with the 2 120mm fans I put in the top of the case.

I think the problem is that the fans on the MSI gamer just need several inches in front of them without obstruction to work effectively. I agree that the reference design would be better. I just decided to go with MSI because I have 2 GTX 760si Twin Frozr in my AMD FX rig and they never throttle.

Anyway, what I ended up doing is flashing both cards with the ATI reference BIOS which allowed me to lower the target temp in CCC lower. This had the unwanted side-effect of limiting my fan speeds to 60%.

I was able to then use MSI afterburner to alter the fan curve, or manually set fans higher but the issue with that is Afterburner has to be loaded for that to work properly. If i close afterburner the fans go back to 60%.

The interesting thing I found that is running the fans over 60% seems less effect on cooling than it does on noise level. at 60% they are quiet. My 200MM fan actually seems to be doing a lot of the work.

Anyway, I do safer with this because when I leave I also turn the AC from 77 to 80f. this is how i'm looking now:
Warning: Spoiler! (Click to show)
post #18 of 27
Thread Starter 
Quote:
Originally Posted by axishero View Post

Thanks for you setting.I run the same with my 290 tri-x now.
But in my place 290's price is double of 270x which I can get 240m/s with it.And 290 power consumption is nearly double of 270x.Can you dig out more power from 290?

I get flickering when I run it at 1150mhz which its grant me 475, at 1200mh I get driver crash which clearly indicate I need more voltage for 1200mhz which its something I want to avoide
you can ignore the flickering and run it at 1150-1175mhz, for me I was afraid to lose my card.,
Quote:
Originally Posted by bbond007 View Post

I'm pretty sure the heat is getting drawn out the top of the case with the 2 120mm fans I put in the top of the case.

I think the problem is that the fans on the MSI gamer just need several inches in front of them without obstruction to work effectively. I agree that the reference design would be better. I just decided to go with MSI because I have 2 GTX 760si Twin Frozr in my AMD FX rig and they never throttle.

Anyway, what I ended up doing is flashing both cards with the ATI reference BIOS which allowed me to lower the target temp in CCC lower. This had the unwanted side-effect of limiting my fan speeds to 60%.

I was able to then use MSI afterburner to alter the fan curve, or manually set fans higher but the issue with that is Afterburner has to be loaded for that to work properly. If i close afterburner the fans go back to 60%.

The interesting thing I found that is running the fans over 60% seems less effect on cooling than it does on noise level. at 60% they are quiet. My 200MM fan actually seems to be doing a lot of the work.

Anyway, I do safer with this because when I leave I also turn the AC from 77 to 80f. this is how i'm looking now:
Warning: Spoiler! (Click to show)

would flipping the top fans make things better? to get rid of the hot air inside the case much faster?, its not like I expect things can get better
my first rig which its got dual fan coolers on its gpus, I had to downclock all the gpus, and put a box fan 500mm right on front of it as well, nothing did make me able to run it at default clocks redface.gif
the only option is to get 3 dead cards with vacuum like cooler so I install their coolers on mines, maybe I can find some on ebay for 10$.
post #19 of 27
SUCCESS!

OK, after some more experimenting, I flashed the ASUS ROM.

With that I noticed cooler temps immediately. I'm not sure why....

The fan profile was still kind of slow so I loaded MSI afterburner beta because Asus Tweak utility would only allow me to use one card....

I slid the voltage to -94 and made a new fan profile.

the top card still is throttling between 960 and 1000mhz to stay at 87c but the bottom card no longer throttles one bit and stays at 81c!

post #20 of 27
Thread Starter 
Quote:
Originally Posted by bbond007 View Post

SUCCESS!

OK, after some more experimenting, I flashed the ASUS ROM.

With that I noticed cooler temps immediately. I'm not sure why....

The fan profile was still kind of slow so I loaded MSI afterburner beta because Asus Tweak utility would only allow me to use one card....

I slid the voltage to -94 and made a new fan profile.

the top card still is throttling between 960 and 1000mhz to stay at 87c but the bottom card no longer throttles one bit and stays at 81c!


amazing !!
this is really cool, my 290 MSi refrence don't have compatible memory to change it to 290x, so I didn't want to risk it by flashing it.
maybe in the future they find something fit for my cards to play with for more hashing power.
currently looking for a cpu water cooling kit to install it on my 280x which I truly hate its cooling power, this might gonna help me to even clock the hell out of it biggrin.gif
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