Post
Topic
Board Mining (Altcoins)
Re: Swedish ASIC miner company kncminer.com
by
Phoenix1969
on 03/11/2013, 16:20:18 UTC
any jupiter owners running .98 notice that the hashrate is highest when you do a poweroff cycle and reboot, it will hit 565-575gh/s at the pool and then after running for a while the pool listed hash rate will get progressively lower, i dip at 490gh/s

any idea why this is?



This is exactly what happens to mine, maybe even lower, 470, 460... no idea why  Huh
did you ever try 70-75C? after enablecores, on 0.98?

24 hours later.. my 3 sats are 850 at the pool on 12 hour average!
that's 283 each, which is exactly what they show on cgminer!

what are your temp readings? how are your fans/case set up? im thinking of following you, doing enable core, and rebooting and then putting case on upside down to raise the temps a bit and see if i still get a down slide in hashes over time with higher temps.


at the moment, all 6 boards(3 sats) are between 69-73C, no case fans whatsoever, heatsink fans only. cases off, stacked, with cardboard partially blocking the fans airflow into the heatsink, like this...

All running 0.98 with enablecores over top
this is for night-time basically, because it gets downright chilly in here.
During the day, I can remove the cardboard, and they stay around 70
Ive tried several times to leave them off... but if they drop below those
temps by more than about 5 degrees, I see a drop in my rates, and can
see one one miner loose about 6 cores, and another loose two...
then they take forever to come back, like 6-8 hours!
I have one miner that is super-rock solid, one a tad finicky,
and one super-sensitive finicky, don't breathe near me kind
Also, It may just be my imagination, but they seem to work better
while its raining outside(high humidity)

thanks for sharing, phoenix!
i can confirm that after putting my case on entirely and raising the temp by about 8-9 degrees my hashrate has remain steady back in the 550-570gh/s on btcguild pool readings.
 
You're mighty welcome...
and Yeah... I do notice the "Dwindledown" overnight....
That's the final thing I'd like to "nip in the butt" hope they are working on it...
I too find myself re-booting about every morning & eve to retain those peaks...