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Topic: Bitmain Antminer U2 (Read 26263 times)

hero member
Activity: 539
Merit: 500
July 18, 2014, 08:32:39 AM
Or im to stupid to anderstand

This remains to be seen.  English as a 2nd language at the minimum.

Are you on windows?  What version?  What mining software are you trying to use?
newbie
Activity: 10
Merit: 0
July 18, 2014, 07:43:41 AM
How do i finde the antminer
in the Computer ??

How do i know if driver are installed ??

If the miner softwher dont finde it and i cant find it under DEV

HOW do i Install driver for the AntMiner

Can anyone help me whit that
I serche and serch the fycking Web and come upp whit nothing
Or im to stupid to anderstand

Plz
Help
full member
Activity: 210
Merit: 100
May 19, 2014, 11:10:39 PM
Any way to clock past 2.2 with bfg?  I have two of these plugged in my desktop usb  ports running at 2.2 with 0 errors so I figure I can overclock it a bit more..... 

Also another yes here. I'm running 5 U2+ all settling in a between 2.26 & 2.29 using a clock speed 0B01. One thing I discovered in with my USB hub/Antminers is that using speeds of either 0x01 or 0x81 with x being a hexadecimal number to set the speed, that bfgminer would work with it.
the only question was would the Antminer deal with it or give HW errors. I actually tested all of mine 2 at a time just so I could find out the rock stars vs the grinders.

Also there are number of threads here and elsewhere that I've read that the USB hub can be an issue. It tends to be an issue with how much power is going to the hub and can it provide enough power to the miners plugged in. Most of the USB 2.0 hubs that come with power supplies don't provide enough juice for U2+ miners. Ironically, the Amazon branded 7 port USB 2.0 port hub has a 4 amp adapter which should be good for our Antminers.

Now my question...I'm about reuse my wife's old netbook (currently Win XP) and was thinking of putting linux or unix on it. Suggestions on OS geared towards to mining?

Windows XP will likely only find a few of the miners.  Any linux distro should work, but I don't know of a specific one.  You might consider just getting a PI and running MinePeon.
So far as hubs go, I'm running two Anker USB 3.0 13-port hubs for 10 miners (5 each).  It's running all of them at 2.4 with 0% errors.
newbie
Activity: 30
Merit: 0
May 18, 2014, 01:51:10 AM
Any way to clock past 2.2 with bfg?  I have two of these plugged in my desktop usb  ports running at 2.2 with 0 errors so I figure I can overclock it a bit more..... 

Also another yes here. I'm running 5 U2+ all settling in a between 2.26 & 2.29 using a clock speed 0B01. One thing I discovered in with my USB hub/Antminers is that using speeds of either 0x01 or 0x81 with x being a hexadecimal number to set the speed, that bfgminer would work with it.
the only question was would the Antminer deal with it or give HW errors. I actually tested all of mine 2 at a time just so I could find out the rock stars vs the grinders.

Also there are number of threads here and elsewhere that I've read that the USB hub can be an issue. It tends to be an issue with how much power is going to the hub and can it provide enough power to the miners plugged in. Most of the USB 2.0 hubs that come with power supplies don't provide enough juice for U2+ miners. Ironically, the Amazon branded 7 port USB 2.0 port hub has a 4 amp adapter which should be good for our Antminers.

Now my question...I'm about reuse my wife's old netbook (currently Win XP) and was thinking of putting linux or unix on it. Suggestions on OS geared towards to mining?
legendary
Activity: 1064
Merit: 1001
April 25, 2014, 04:20:11 PM
Yes, I posted about this a couple pages back: https://bitcointalksearch.org/topic/m.6095762
Whats Multiminer and how about with CGMiner ?

Even if it's the same lined posted, I would have no idea how to use it since I don't recall a way to enter commands unless it goes in the config file in one way or another.

FWIW, here's my CGMiner config file.

Code:
{
"pools" : [
{
"url" : "stratum+tcp://stratum.btcguild.com:3333",
"user" : "MoreBloodWine_Laptop",
"pass" : "128"
},
{
"url" : "stratum+tcp://us1.ghash.io:3333",
"user" : "MoreBloodWine.Laptop",
"pass" : "128"
},
{
"url" : "stratum+tcp://mint.bitminter.com:3333",
"user" : "MoreBloodWine_Laptop",
"pass" : "128"
}
]
,
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
sr. member
Activity: 336
Merit: 250
April 25, 2014, 01:26:46 PM
I missed that, thanks!  Both my u2+ in my desktop running 2.4 since early morning with no errors =-)
full member
Activity: 210
Merit: 100
April 25, 2014, 08:24:06 AM
Any way to clock past 2.2 with bfg?  I have two of these plugged in my desktop usb  ports running at 2.2 with 0 errors so I figure I can overclock it a bit more..... 

Yes, I posted about this a couple pages back: https://bitcointalksearch.org/topic/m.6095762
legendary
Activity: 1064
Merit: 1001
April 25, 2014, 03:15:39 AM
Any way to clock past 2.2 with bfg?  I have two of these plugged in my desktop usb  ports running at 2.2 with 0 errors so I figure I can overclock it a bit more..... 
Not sure but speaking of OC'ing.

I'm running CGminer on a windows laptop running the exe in a minimized cmd window. Unlike linux where commands can be given etc., how might one go about trying to OC woth my setup ?

Not looking to tweak it to 2.2 or more like the quote which will more than likely burn the ASIC's out in no time. I just want to try and get a steady 2.0 from the current 1.58/9 average.
sr. member
Activity: 336
Merit: 250
April 25, 2014, 03:07:52 AM
Any way to clock past 2.2 with bfg?  I have two of these plugged in my desktop usb  ports running at 2.2 with 0 errors so I figure I can overclock it a bit more..... 
legendary
Activity: 966
Merit: 1003
April 11, 2014, 01:39:36 AM
 Its an ooohhhhllldd link I had socked away in a dark corner I have nooo idea if the path is still valid for the Vista OS. You could also try FILE GURU they have links to recovery media but look carefully before you click they have adtraffic sponsored tiles that just take you to key word search engines.
sr. member
Activity: 266
Merit: 250
April 11, 2014, 01:38:59 AM
This looks nice, very cheap and low power
legendary
Activity: 1064
Merit: 1001
April 11, 2014, 01:32:56 AM
When you format the hard drive it asks if you want it to wipe the drive entirely clean. The Looooong method, or just format the large partition. The recovery partition would probably be only 120 MB in size. Basically.
  Even trying to run two identical CD-ROM's is impossible with XP and I don't know if that was resolved with Vista or 7.
    Unless Silabs tool lets you assign a unique serial number to each device and XP recognizes it as different devices you may have to walk towards the bright light and submit XP or your second U2. Cry
In regards to ilabs, I tried two different tools and none would populate the device list lol.

Not submiting anything yet but it would be nice to get this damn exe link to work...
legendary
Activity: 966
Merit: 1003
April 11, 2014, 01:29:12 AM
When you format the hard drive it asks if you want it to wipe the drive entirely clean. The Looooong method, or just format the large partition. The recovery partition would probably be only 120 MB in size. Basically.
  Even trying to run two identical CD-ROM's is impossible with XP and I don't know if that was resolved with Vista or 7.
    Unless Silabs tool lets you assign a unique serial number to each device and XP recognizes it as different devices you may have to walk towards the bright light and submit XP or your second U2. Cry
legendary
Activity: 1064
Merit: 1001
April 11, 2014, 01:07:29 AM


Most Toshiba laptops with come with the factory software recovery image stored in a special hidden partition on the hard drive of the laptop. The factory software recovery image allows the user to recover the laptop to its factory fresh condition as when it was new.
This partition may also be referred to as the Partitioned Recovery Method or Free Recovery option.

 That statement is Cut-n-paste from Toshiba Support.
   It might be worth looking into for you. It says some where about going to page 62? User Guide and Manual. For instructions. I don't know if you wiped this out already but it might still be there.
I tried looking but couldnt find it so if it's hidden it's hidden well. When I installed XP I formatted the HDD so I don't know i that would have wiped the partition as well or just the main C drive.

FWIW though, the partition wouldnt suit current needs as it would lose everything on the drive right now. So at present the best option to save everything would be to hopefully get a working link for the exe download and then just "upgrade" everything thus preserving current contents.
legendary
Activity: 966
Merit: 1003
April 11, 2014, 01:04:12 AM


Most Toshiba laptops with come with the factory software recovery image stored in a special hidden partition on the hard drive of the laptop. The factory software recovery image allows the user to recover the laptop to its factory fresh condition as when it was new.
This partition may also be referred to as the Partitioned Recovery Method or Free Recovery option.

 That statement is Cut-n-paste from Toshiba Support.
   It might be worth looking into for you. It says some where about going to page 62? User Guide and Manual. For instructions. I don't know if you wiped this out already but it might still be there.
legendary
Activity: 1064
Merit: 1001
April 11, 2014, 12:34:16 AM
What brand/model is the Laptop?
Toshiba Satellite L305D-S5895
legendary
Activity: 966
Merit: 1003
April 11, 2014, 12:21:10 AM
What brand/model is the Laptop?
legendary
Activity: 1064
Merit: 1001
April 11, 2014, 12:11:14 AM
I skipped Vista, went from XP to 7 Pro-64 bit. Now you may consider that going to Vista may buy you a small amount of better security overall since XP support is over. Your going to need to upgrade eventually. Do it RIGHT NOW, or take a little more time and figure out if you are ready to upgrade, ie. back up your hard drive and make sure you have this or that.
 Is this the absolute answer to the USB policy..... I'm not sure, do you have a powered/or unpowered hub available to test first. It may be that separating the devices to... one in the laptop port and the other loaded on an interface USB device could trick XP into allowing both to work.
No hubs to test, and even if Vista does sole he current problem at hand it doesn't matter since the EXE file isn't being found... ATM all I was able to download are the two wim files.
legendary
Activity: 966
Merit: 1003
April 10, 2014, 11:33:13 PM
I skipped Vista, went from XP to 7 Pro-64 bit. Now you may consider that going to Vista may buy you a small amount of better security overall since XP support is over. Your going to need to upgrade eventually. Do it RIGHT NOW, or take a little more time and figure out if you are ready to upgrade, ie. back up your hard drive and make sure you have this or that.
 Is this the absolute answer to the USB policy..... I'm not sure, do you have a powered/or unpowered hub available to test first. It may be that separating the devices to... one in the laptop port and the other loaded on an interface USB device could trick XP into allowing both to work.
legendary
Activity: 1064
Merit: 1001
April 10, 2014, 10:48:24 PM
Actually, before I get to that point of no return.

I should ask this, will Vista fix the problem at hand or is it just Win 7 and any linux disro like ck was talkin about ?
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