Latest posts of: mattpker

Quote from: nebiki on July 07, 2011, 01:23:06 PM

70% fan at 61°C? i'd consider lowering the fanspeed. helps the durability of the fan as well as your ears.

70% is the final percent from quiet and loud. At 71% it gets loud. I like to keep the temps down as much as possible as I live in Arizona and my motherboard tends to run hot because of the cards. Need to start water cooling as I already have 8 fans in my case lol.

MSI 6950 2GB with unlocked shadders.

Getting 395Mhash/s with the newest GUIminer (http://forum.bitcoin.org/index.php?board=42.0) and the preview 11.7 ATI Drivers (http://developer.amd.com/Downloads/110619a-121104E.zip).

With ATI Tray Tools (http://downloads.guru3d.com/download.php?det=733):

Core: 895
Memory: 300
Volt: 1100
Fan: 70%
Mining Flags: -v -w128

With the memory at 300 I get a significant drop in core temp, both my cards run around 59 - 61 degrees Celsius.

How come my ATI Tray Tools can set unsupported clocks but this cannot? You also need to make is so it sets the fan speed on startup. Another great benefit is if it changed the clocks back to default if the application is exited. Unfortunately, I am going to have to continue to use ATI Tray Tools for my overclocking until these issues are resolved.

http://forums.amd.com/forum/messageview.cfm?catid=390&threadid=128404&enterthread=y has been updated by AMD.

"This affects windows only. I know we have root caused the issue and we should have a fix in one of the next few catalyst releases." ~MicahVillmow

Hopefully we will see this resolved soon

Wow this really worked!!

2 6950's both:

380 -> 395 Mhash/s

Thank you so much!!

I make between 1.2 and 1.5 BTC a day with 1,000 Mhash/s.

I can't get above 900Mhz and 1.100 volts on my 6950's (unlocked shaders) at 380 Mhash/s. I guess I did not get these good cards like you guys got that can be overclocked a lot.

Do you have GPU-Z running or anything like that? Whenever I have GPU-Z running or the "video" settings page in CCC my 6950's crash. Try closing all applications and make sure no flash is playing in a web browser. More details on this can be found here:

http://forum.bitcoin.org/index.php?topic=4669.0

and

http://forums.amd.com/forum/messageview.cfm?catid=390&threadid=128404&enterthread=y

Each GPU/CPU/Computer needs a separate worker/miner.

The only thing I have found to help is setting the affinity. Until the drivers are fixed this is the only option or running Linux. I am using Phoenix Rising now because it allows you to set the affinity on start up to a random core.

Just switched from deepbit.net to btcguild.com. I am loving it so far! The only thing I am missing is the bitcoins made in the last 24 hours. I don't think it would be to hard for you guys to implement that. Other than that it is awesome. Thanks and keep up the good work!!

Sounds like you are missing the poclbm kernel in the kernels directory located where your phoenix.exe file is.

I'm curious to see how this effects the market.

That is a lot because I can't get my core clock above 950Mhz. When I have both cards in the machine it is even more unstable and I cant get them above 900Mhz without crashing.

I will look for this when I get home. Thanks for the info!

I can't get the on-board video to work if I have a video card plugged in. Did you have to change something in the BIOS?

Wow, that is some decent speeds without the unlock. As you can see here you are around what the unlocked ones are doing:

https://en.bitcoin.it/wiki/Mining_hardware_comparison

My two 6950's are unlocked and do about 370 Mhash/s each with a small overclock. I am not overclocking them to much yet as it is my main computer and the drivers are currently unstable.

Is that 355 Mhash/s each or together?

I have the same issue with two unlocked MSI 6950's and that same powersupply. I think it has to do with what is related in these two forums:

http://forum.bitcoin.org/index.php?topic=4669.0

and

http://forums.amd.com/forum/messageview.cfm?catid=390&threadid=128404&enterthread=y

Looks like we need to wait for driver updates to resolve the issue. When you do your overclock, make sure GPU-Z is not running. I have found that this and other applications cause the freeze you are describing.