Owners of A4 General Discussion and Help

tradewiz wrote:

CritterDog wrote:Hi tradewiz,
How do I you see the temperature? On my software the temperature box is blank. Also what are your rejects looking like. Thanks


PS Oh wait I just found temperature..LOL Here is what I am running right now I was running 810. I am going to go down to 805 for a bit

STATS ID Elapse TEMP(AVG) TEMP(SOLO)
0 BA20 7h 37m 13s 2 45.00 45
0 1 BA21 7h 37m 13s 3 44.00 44
0 2 BA22 7h 37m 13s 4 46.00 46
0 3 BA23 7h 37m 13s 5 44.00 44

I wonder if the temperature is running high because the fan is pulling air instead of pushing it through the miner

Hi Critterdog, those temps dont look that crazy. One of the units I have seem to have some temp issue, but one should be able to push them quite a bit higher than 45c. Maybe reduce the voltage slightly.
I have now been running with those settings I wrote about earlier for about 4.5 hours. So far it looks very good, much more stable and they are not "falling like flies". Would need some more time to confirm though. Will update the group later tonight.

CritterDog wrote:

tradewiz wrote:

CritterDog wrote:Hi tradewiz,
How do I you see the temperature? On my software the temperature box is blank. Also what are your rejects looking like. Thanks


PS Oh wait I just found temperature..LOL Here is what I am running right now I was running 810. I am going to go down to 805 for a bit

STATS ID Elapse TEMP(AVG) TEMP(SOLO)
0 BA20 7h 37m 13s 2 45.00 45
0 1 BA21 7h 37m 13s 3 44.00 44
0 2 BA22 7h 37m 13s 4 46.00 46
0 3 BA23 7h 37m 13s 5 44.00 44

I wonder if the temperature is running high because the fan is pulling air instead of pushing it through the miner

Hi Critterdog, those temps dont look that crazy. One of the units I have seem to have some temp issue, but one should be able to push them quite a bit higher than 45c. Maybe reduce the voltage slightly.
I have now been running with those settings I wrote about earlier for about 4.5 hours. So far it looks very good, much more stable and they are not "falling like flies". Would need some more time to confirm though. Will update the group later tonight.

Those temps were when I was set on 16384 h=50, v805.. Now I am at 8192 h=40 and after 1 hour 15 mins 800mv
I am at
0 BA20 1h 15m 28s 2 52.00 52
0 1 BA21 1h 15m 28s 3 51.00 51
0 2 BA22 1h 15m 28s 4 53.00 53
0 3 BA23 1h 15m 28s 5 50.00 50

I am going to try and get the temps down a bit.. On a good note running at 8192 my restart is down to .47 and it will get below a second set on 16384 but anything higher the restarts stay above 1 sec..

tradewiz wrote:After running now for a couple of days most machines seems to "fall off". I am not sure what to do. Trying to reboot them now, I guess they will go back up.

tradewiz wrote:If you email me the details I will do that now.

Chris Sokolowski wrote:Thanks for the information that the hashrate drops on both pools. That info helps a lot because having a slight hashrate drop on Litecoinpool indicates that we aren't forgetting to do something that Litecoinpool does. It confirms that the problem is the different characteristics of difficulty and restarts on our pool compared to Litecoinpool.

You said that one of your hashing boards does not get any work. KnC Titans are very similar in that they take a long time to propogate work to all their chips. This behavior is the reason we originally introduced the work restart time. This leads me to believe that our work restart time calculations are underestimating the work restart times of A4s. I want to look at the shares the miner submitted. Was that miner the only miner on your account? If not, did you assign that worker a name?

We are testing with tradewiz a change on the development server to see if the problem is indeed a difficulty switching issue. We'll let you know as soon as we have results.