What are the other 2 hubs?

How many do you have total?

https://docs.google.com/file/d/0Bw1XF4HYW9I6QXFCd1F1cWRqU1E/edit?usp=sharing
https://docs.google.com/file/d/0Bw1XF4HYW9I6Qjg1YWM3Zjd0TUk/edit?usp=sharing

Update*  After about 15 minutes all the Erupters LEDs went solid and not response from LCD input  

Played around with moving fan position, got it read upto 13, but hash rate was still only 3.2-3.3 rate ( 10x Erupters).  It then crapped out after a little over a minute. 

The following is my USB tree:

/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/3p, 480M
        |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=smsc95xx, 4                   80M
        |__ Port 2: Dev 4, If 0, Class=Vendor Specific Class, Driver=rtl8192cu,                    480M
        |__ Port 3: Dev 5, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 1: Dev 6, If 0, Class=Vendor Specific Class, Driver=usbfs,                    12M
            |__ Port 2: Dev 7, If 0, Class=Vendor Specific Class, Driver=usbfs,                    12M
            |__ Port 3: Dev 8, If 0, Class=Vendor Specific Class, Driver=usbfs,                    12M
            |__ Port 4: Dev 9, If 0, Class=Hub, Driver=hub/4p, 480M
                |__ Port 1: Dev 10, If 0, Class=Vendor Specific Class, Driver=us                   bfs, 12M
                |__ Port 2: Dev 11, If 0, Class=Vendor Specific Class, Driver=us                   bfs, 12M
                |__ Port 3: Dev 12, If 0, Class=Hub, Driver=hub/4p, 480M
                    |__ Port 2: Dev 14, If 0, Class=Vendor Specific Class, Drive                   r=usbfs, 12M
                    |__ Port 3: Dev 15, If 0, Class=Vendor Specific Class, Drive                   r=usbfs, 12M
                |__ Port 4: Dev 13, If 0, Class=Hub, Driver=hub/4p, 480M
                    |__ Port 1: Dev 17, If 0, Class=Vendor Specific Class, Drive                   r=usbfs, 12M
                    |__ Port 2: Dev 18, If 0, Class=Vendor Specific Class, Drive                   r=usbfs, 12M
                    |__ Port 3: Dev 19, If 0, Class=Vendor Specific Class, Drive                   r=usbfs, 12M
                    |__ Port 4: Dev 20, If 0, Class=Hub, Driver=hub/4p, 480M
                        |__ Port 1: Dev 22, If 0, Class=Vendor Specific Class, D                   river=cp210x, 12M

I chose them based on this thread https://bt.irlbtc.com/view/253749.0

_________Device_Name_________|   ___Ports Total___|   ___Ports Usable___|   __Power from AC__|   ___Price USD___|   __Price Usable Port__|   
7-port Hub from MCM                                7                                7                          5V @ 3.5A                   13.99                        1.99

I was duplicating this setup but smaller.

https://bt.irlbtc.com/view/253749.msg2996430#msg2996430

Same results with only 4 Erupters, stop hashing after a few minutes then later locks up completely.

minepeon@minepeon ~ $ sudo ntpd -s
minepeon@minepeon ~ $ systemctl stop cgminer.service
Failed to issue method call: Access denied


attempted and received the following results.

Figured out my clock issue thanks to the Minpeon thread.  I've been mining for just about 10 hours and a little over 2% error.   Not horrible for my first time mining.  Thanks to the gratification of BTCguild, I've already pulling in .01 BTC.  Granted diff will rise but I'd be happy to bring in .15-.20 my first week.

I've mentioned this a couple of times on different threads.  The core reason is that the RPi doesn't have a real-time clock.  So, every time you power up the RPi, it resets its date to Jan. 1, 1970.  After a few minutes of running, there's a background process in Minepeon that updates the date/time to the current date and time.  However, in that interval, cgminer has kicked off.  So cgminer thinks that it started on Jan. 1, 1970, and has been running continuously for over 43 years.  It's also the reason your average hash rate drops to near zero - it's not your hash rate divided by the runtime over the last few minutes/hours, it's that hash rate over the last 43 years.  So yeah, it will drop.

This link might help you and others if you want to add a RTC:

http://learn.adafruit.com/adding-a-real-time-clock-to-raspberry-pi/overview


I cannot remember the exact commands I punched into via SSH to get my minepeon from displaying 1970, but it did involve adding extra ntp (example: 1.au.pool.ntp.org or similar) addresses into ntp.conf.