How do I reduce hardware errors with my ASIC USB miners?

[NullVoxPopuli]

See my console below, it is showing a pretty good hash rate (in GH/s, rather than MH/s)

On coinex, it says I'm getting from 400 to 800MH/s... but cgminer says I'm getting 4.6 GH/s. I've tried multiple pools, and the speed discrepancy appears to be the same for every pool.

Code:

 cgminer version 3.6.3 - Started: [2013-10-25 17:08:01]
--------------------------------------------------------------------------------
 (5s):5.624G (avg):4.601Gh/s | A:17894  R:41  HW:37944  WU:6.6/m
 ST: 17  SS: 4  NB: 2590  LW: 288286  GF: 199  RF: 0
 Connected to stratum.coinex.pw diff 4 with stratum as user <me>
 Block: 60ed838e3275dcb4...  Diff:856  Started: [14:57:35]  Best share: 4.82K
--------------------------------------------------------------------------------
 [P]ool management [S]ettings [D]isplay options [Q]uit
 AMU  0:                 | 336.0M/332.9Mh/s | A:    0 R: 0 HW:  361 WU:0.0/m
 AMU  1:                 | 336.0M/333.3Mh/s | A:    0 R: 0 HW:    0 WU:0.0/m
 AMU  2:                 | 335.7M/334.3Mh/s | A:12552 R:29 HW:  174 WU:4.6/m
 AMU  3:                 | 336.9M/303.5Mh/s | A:    0 R: 0 HW: 4309 WU:0.0/m
 AMU  4:                 | 341.1M/331.2Mh/s | A:    0 R: 0 HW: 1631 WU:0.0/m
 AMU  5:                 | 336.0M/345.7Mh/s | A:    0 R: 0 HW: 3232 WU:0.0/m
 AMU  6:                 | 336.0M/332.6Mh/s | A:    0 R: 0 HW:  103 WU:0.0/m
 AMU  7:                 | 336.0M/333.3Mh/s | A:    4 R: 0 HW:    2 WU:0.0/m
 AMU  8:                 | 343.1M/309.5Mh/s | A:  188 R: 0 HW:10568 WU:0.1/m
 AMU  9:                 | 331.3M/318.4Mh/s | A:  220 R: 0 HW:10278 WU:0.1/m
 AMU 10:                 | 408.0M/332.1Mh/s | A:    0 R: 0 HW:  810 WU:0.0/m
 AMU 11:                 | 336.0M/333.5Mh/s | A:   72 R: 0 HW:   36 WU:0.0/m
 AMU 12:                 | 329.3M/328.8Mh/s | A: 4858 R:12 HW: 6243 WU:1.8/m
 AMU 13:                 | 336.0M/334.1Mh/s | A:    0 R: 0 HW:  198 WU:0.0/m
--------------------------------------------------------------------------------

what do I do?

[1715480628]

1715480628

[1715480628]

1715480628

[pontiacg5]

You are using a really cheap underpowered hub more than likely, your miners are not getting enough power and not submitting any shares at all.

Get a better USB hub, there's a thread out there listing known good ones. Either that or just buy a dlink dub-h7.

[NullVoxPopuli]

.

You are using a really cheap underpowered hub more than likely, your miners are not getting enough power and not submitting any shares at all.

Get a better USB hub, there's a thread out there listing known good ones. Either that or just buy a dlink dub-h7.

This is the hub I'm using: http://www.amazon.com/gp/product/B0051PGX2I/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

It has external power.

What about a hub makes it good or not?

[pontiacg5]

I have that exact hub, it only has a 2A power supply. Each block eruptor uses .5A, so that hub can only theoretically run 4 miners.

It's a steaming pile of crap though and won't even run two miners.

You need a new USB hub. Search USB hub for miners on this forum and I guarantee you will find the thread with lists of good hubs.