Post
Topic
Board Mining support
Re: Bitmain AntMiner U1 Tips & Tricks
by
anw
on 28/01/2014, 02:32:14 UTC
hey,

I have an antminer which is running anormaly slow.
[...]
This antminer has been tested with different hubs (dlink, 49-ports...), alone, but it never reached more than 0,1Gh/s.

The 21 other units are working very well, so I guess the item is faulty  Huh
Screws are tight... and it's not getting hot at all ... Any idea?

Two ideas:
1) you are running the miner for a short period - wait at least some hours
2) that is the hash rate the pool sees - with zero shares it is quite natural the hash rate is bad and dropping!!
Please, don't run the miners for 1 minutes and complain of slowness... I see AMU 0 running at 2.10 and the other two at 1.98!!!

1) I had it run for one day, no luck. bfgminer is reporting correct (5s avg/all time avg) but "effective avg" is < 0.1ghs and it produces very low shares.
And running it on cgminer I'm getting those results:
Code:
[P]ool management [S]ettings [D]isplay options [Q]uit
 ANT  0:                | 133.3M/65.73Mh/s | A:  36 R:  0 HW: 16 WU: 0.6/m
 ANT  1:                | 1.574G/1.530Gh/s | A:1296 R:128 HW: 51 WU:20.4/m
 ANT  2:                | 1.646G/1.733Gh/s | A:1400 R:  0 HW: 54 WU:23.2/m
 ANT  3:                | 1.596G/1.837Gh/s | A:1400 R:  0 HW: 59 WU:24.6/m

2) Yes, even after running it for hours it doesn't produce more shares. I have 27 other AMU running fine, that's why I wonder what happens with this one...

Measure different voltages on the testpoints.
I'd like to know how to do that... I have a multimeter but have no clue what should I measure... I'm more in software than hardware ehe Grin