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1  Bitcoin / Hardware / WANTED: dead Cointerra Terraminer machines and parts on: July 14, 2014, 05:28:57 AM
Looking to buy dead machines for parts.  Drop me a note if you're looking to unload.
2  Bitcoin / Pools / Ghash still having issues? on: May 14, 2014, 02:25:59 AM
While my miners seem to connect, they also seem to be behaving oddly.  Curious if anyone has noticed whether or not the recent (for me just today) Ghash issues have been resolved?
3  Bitcoin / Hardware / Terraminer IV already has one dead board (CTA / core) on: April 15, 2014, 03:57:25 PM
Got mine (2 machines) last week and set them up over the weekend.  They ran fine for a couple of days.  Then as of last night, one of the boxes stopped showing CTA1 (each box has two boards with two ASICs each as I understand it).

I've tried everything with absolutely no luck.  The second CTA will simply not show up, neither on the web interface nor on the lights in front of the machine.  Only the "miner 2" light flashes.  So this machine is now hobbled to 1/2 speed.

- firmware downgrade back to 0.6.48
- factory reset
- reboot via web interface
- reboot through SSH
- reset button on front panel
- power stepping down
- letting the machine "cool down" overnight

No luck.  The second board has never been seen or heard from since it went down last night.  The machine is three days old.

The other machine is still running fine with both boards under the same exact conditions.

I see lots of posts on other forums with people having this problem, but with earlier batches.  My machine is an April (latest) batch.

EDIT:  I just called them and was told to send an email to support@cointerra.com.  They do not have phone-based tech support.

I'll post updates for anyone reading this and is considering purchase of one of their machines.
4  Other / CPU/GPU Bitcoin mining hardware / Problems joining two PSU's (old parts) is a 300w PSU enough for a 5770? on: August 25, 2011, 08:30:55 PM
Have some older spare parts around that I thought I could build into a machine.  Here are the basics:

Dell Optiplex 620 (older P4 based Dell)
ATI HD5770
built in Dell PSU (I think around 300w)
extra PSU (300w rated)

So I've got the two PSU's jumped together (green -> green and black -> black).  I've also tried this by simply jumping the 2nd PSU in standalone (always on) mode.

No dice either way.  I would have thought that a dedicated 300w PSU would be enough for a 5770, no?

Or am I missing something?  I would have thought that the machine would at least boot up to the system BIOS.

If I disconnect the 2nd PSU and boot up using the machine's built-in internal GPU (and PSU) then everything is fine, but of course that GPU won't do squat for BTC mining.

Comments / input appreciated.
5  Economy / Economics / 8/8/11 and the big "meh" on: August 08, 2011, 05:13:11 AM
1.  Tomorrow, the world will NOT end.

2.  S&P rated top financial institutions as AAA before they went bankrupt in 2008 (eg., S&P has no clue what they're talking about). 

3.  S&P executives may be prosecuted for their shady roles (see above) and have likely realized that the best defense is a good offense.

4.  The market doesn't care about S&P.  The market cares about economic data (eg., unemployment).

5.  The market will likely recover sooner than most think.

6.  What's bad for the stock market and global currencies might be good for bitcoins.
6  Bitcoin / Bitcoin Technical Support / 4hrs (now 24+) and still unconfirmed? on: August 03, 2011, 06:00:40 PM
"Got paid" from Deepbit this morning (10:00am EDT) and my bitcoin client is showing the transaction as still 0/unconfirmed.  It's now 2pm EDT.  I've never seen this before.  Similarly, nothing showing in block explorer.

My client has 24 connections and is currently on block 139476.

;-(
7  Bitcoin / Pools / Growing Mh/s discrepancy on deepbit, showing about 1Gh/s less than actual? on: August 03, 2011, 04:59:00 PM
My miners typically run at around 7.5 Gh/s these days.  For the past month, that's been pretty much in accord with what my account on the deepbit website reports.   It's maybe off by 100-300 Mh/s.

For the last couple of days, however, my account on deepbit consistently shows about 1 Gh/s less than what my machines are reporting (output from DiabloMiner).

Anyone else notice this?  It's both odd and annoying.  It's also affecting my daily BTC mining quota.
8  Other / CPU/GPU Bitcoin mining hardware / Ebay Resolution Center experiences? on: August 02, 2011, 04:21:19 PM
Like many of us, I've been buying lots of graphics cards on eBay lately.  All of them have been working fine, except one.  I contacted the seller and never got a reply (waited five days).  I also contacted eBay's Resolution Center who in their email to me said they'd get back to me in 72 hours, which have come and gone.

I've spoken to my credit card company (AMEX) and they claim they can handle it ... BUT ... their investigation will trump/cancel any other investigation by eBay or paypal.  So I figured I'd let eBay have a go at it.

Comments / input appreciated.  I think we all need to police the community for lame resellers who try to sell "working" items that are obviously defective.  In my case, the card locks up when loading the ATI drivers.

I actually had the above happen with a new card from NewEgg.  They replaced it in a week.  So I've seen it happen before.
9  Economy / Trading Discussion / Mt. Gox trades not being executed on: July 31, 2011, 02:56:09 PM
Been trying to sell my daily quota of BTCs.  Trades not going through, regardless of price.  Similarly, I see "---" for the current bid price on bitcoincharts for gox.

Something seems to be up.
10  Other / CPU/GPU Bitcoin mining hardware / 6870s locking up pretty regularly, anyone else? on: July 28, 2011, 06:29:10 PM
I have a bunch of machines, a mixture of 5770s, 5830s, 5870s, 6870s and 6950s.  Basically, I wanted to see first hand what these cards had to offer in terms of price, kw/h, and mh/s.

Two (out of five) of my 6870s lock up almost every day.  I have scripts running that keep their temps set to 72C max.  Similarly, they never run more than 97% of max core clock (970/1000) or mem cock (1212/1250). 

They seem perfectly happy running like this for hours and hours.  But for reasons I can't seem to pin down, they lock up.  I've taken to setting them to even lower params at night (peak temp of 69C and max clock of 90%.  That seems to work.  But I don't like leaving them set that low all day long.  They're not working to their fullest potential then.

Is there something up with the 6870s?  I'm not very happy with the cards to be honest.  I hate it when they freeze up and I can't get home to restart them.  The lockup is of such a nature that the entire machine locks up.  Can't ssh.  Cron doesn't reboot the machine either.

Upon manual restart, however, the cards are fine once again for hours and hours.

I guess I need to start dialing back to 96% down through to 90% and see where the happy "high" medium is.  But the odd things is, it's only two of my cards out of five.  The other three sit in adjacent locations on my server shelf.  So why do these two lock up so much and not the others.  The machines are also identical in every other way.

Either way, a big -1 for the 6870s here.
11  Economy / Services / [FOR SALE] Expert sysadmin to set up your bitcoin farm. The sky is the limit. on: July 26, 2011, 09:32:32 PM
Have a lot of money but don't know how to set up a bitcoin farm?

Have no money, but know people who do, and want to set up a bitcoin farm?

Any combination of the above, and want to set up a bitcoin farm?


Send me a note.  I have 24 machines currently running myself at around 8 Gh/s.  Can set up similar for you in just a few days (after parts arrive).  10 Gh/s to 1000 Gh/s ... it all depends on how much you want to spend and how much current your home or office space can handle.

All Linux.  All secure.  Rigs can be monitored via web page or mobile phone as well as reconfigured for custom power and temp settings.

I've been setting up Linux boxes and developing software for Linux since before Kernel 1.0.

12  Economy / Economics / Anyone tracking "real" BTC transactions? Is it even possible? on: July 26, 2011, 03:14:54 PM
I'm talking about BTC transfers for goods, not from mining pools to miners or miners directly by finding blocks.

I think that's what we need to start looking at.  Unless people start using it more to buy and sell goods & services ... BTC won't survive.
13  Other / CPU/GPU Bitcoin mining hardware / How to jump together two power supplies to run one motherboard? on: July 24, 2011, 04:14:39 PM
I've seen the cable on cablesaurus.  But I don't want to pay $25, especially since it just appears to be tapping two wires from the main mobo connector.

Which wires?  I can't tell from their picture.  I'd much rather spend $2 at Radio Shack on two wire lead taps and just roll my own.  I'd love to put all my 300w power supplies into service.
14  Alternate cryptocurrencies / Altcoin Discussion / 7Gh/s ... NMC or BTC ... or BTC pool hopping? on: July 24, 2011, 03:50:28 PM
Have read some of the threads regarding NMC mining > BTC mining.  Is that still true or did the difficulty factor skyrocket and end the party?

Have also read about BTC pool hopping.  Not clear on how that nets you any gain.  If you leave a pool you have fewer shares for the round and hence make less.  Is there a loophole in how shares are calculated that would let you benefit from having few shares in many pools = more than all your shares from one?
15  Other / CPU/GPU Bitcoin mining hardware / Ambient room temperature sensor (digital USB thermometer) suggestions? on: July 15, 2011, 04:10:26 PM
I'm looking for a digital thermometer that I can plug into my PC (preferrably USB) so that I can do things like:

if (room_temperature > 90F)
     set_miner_speeds (low)

else if (room_temperature > 85F)
     set_miner_speeds (med)

else
     set_miner_speeds (high)

I do this pretty much manually now, but I see no reason why it couldn't be automated.

EDIT:  One with an API that works under Linux too.
16  Bitcoin / Bitcoin Technical Support / Transaction made on 7/14 (am) still not showing up? on: July 15, 2011, 02:03:56 PM
I.  I sent 1 btc to my TradeHill account yesterday morning (7/14) and a) it's not showing at TH most likely because b) it's still showing 0/confirmed in my BTC client.

II.  I sent 3 btc to my MtGox account at the same time.  They're there.  They show 10 confirmations. 

Why did II happen and not I?
17  Other / CPU/GPU Bitcoin mining hardware / What temps do you keep your GPUs at? on: July 13, 2011, 03:20:27 PM
I had mine set to dial back once they hit 73C.  That figure was based largely on intuition.  I dialed back one more to 72C last night and for the first time in a week, none of my miners locked up overnight.  Everybody is running smooth and stable (knock on wood).

Just curious.  I also have my fan set up to run from 0 to 100% scaled from 48 to 80C.  So 72C means about 70% fan speed, give or take.

So mine run from around 65C to 72C, the latter being enforced by software.
18  Bitcoin / Pools / BTC Poolwatch down? on: July 13, 2011, 02:59:26 PM
Haven't been able to access the site since yesterday evening.

   http://www.btc-poolwatch.com/

It's a nice little way to compare mining stats on different pools.  That is, when it's up.  I've only been using it for a week or so.
19  Bitcoin / Mining support / Two useful perl scripts - part 2 (GPU clock) on: July 10, 2011, 04:12:10 PM
Been wanting to share these for a while.  My miners wouldn't be able to run at peak efficiency without them.  Hopefully they'll be of use to others as well.

2.  GPU clock speed script

Using the same basic main structure as Berhard's fmon.pl I put in perl regexp for plucking out GPU core and memory clocks so that the script can control peaks based on temperature.  One obvious improvement would be to alter the % change for mem and core to scale more appropriately.  I've only been running this script for about a week, so USE EXTRA CAUTION HERE.  And as always USE AT YOUR OWN RISK.  Farming out fan speed and GPU clock settings to another app can be very, very risky.

----- snip -----

#!/usr/bin/perl
# 2011 by Marvin Martian (mrmarvinmartian@gmail.com)
# Licensed under GNU GPL v2 or later

#use strict;

# those below default settings mean:
# set max core and mem peaks to 99% of max
# set temp max to 73
# etc...

my %options=qw(peakPCT 99 peakTMP 73 updateinterval 15 debug 0);


sub diag($)
{ print(@_,"\n") if $options{debug} }

sub mydie($)
{
    print (caller(),@_);
    exit 1;
}


sub gettemp()
{
    $_=`aticonfig --adapter=0 --od-gettemperature`;
    if(m/Sensor 0: Temperature - (\d+\.\d+) C/) {

    } else {mydie "bad temp read: $_"}
    return $1
}

sub fixRange()
{

   
    diag("-------------------------------------------------------");
    my $cmd = `aticonfig --odgc`;

    my @lineSplit = split(/\n/,$cmd);
    my $elt;
    foreach $elt (@lineSplit) {
   if ($elt =~ /^ *Current Clocks : *([^ ]*) *([^ ]*) */) {
       $cCCore = $1;
       $cCMem = $2;
   }
   if ($elt =~ /^ *Current Peak : *([^ ]*) *([^ ]*) */) {
       $cPCore = $1;
       $cPMem = $2;
   }
   if ($elt =~ /^ *Configurable Peak Range : *([^ ]*) *([^ ]*) */) {
       $coreRange = $1;
       $memRange = $2;
       if ($coreRange =~ /\[(\d*)-(\d*)\] */) {
      $coreL = $1;
      $coreH = $2;
       }
       if ($memRange =~ /\[(\d*)-(\d*)\] */) {
      $memL = $1;
      $memH = $2;
       }
       if ($options{debug}) {
      my $p = $options{peakPCT}/100;
      my $t=gettemp();
      diag("($t/$p) [ $cPCore ($coreL-$coreH)  $cPMem ($memL-$memH) ]");
#      diag("Current clock [ $cCCore  $cCMem ]");
       }
   }
    }

    my $p = $options{peakPCT}/100;
    my $pT = $options{peakTMP};
    my $t=gettemp();
    if ($t > $pT) {
   $nCP = $cPCore * $p;
   $nMP = $cPMem * $p;
   if ($nCP < $coreL) {
       $nCP = $coreL;
   }
   if ($nMP < $memL) {
       $nMP = $memL;
   }
   if (($nCP > $coreL) || ($nMP > $memL)) {
       diag("Temp ($t) above peak ($pT) setting to 99% of current peak");
       $cmd = "aticonfig --odsc=$nCP,$nMP";
       diag("Executing cmd:  $cmd");
       system($cmd);
   }
    }
    elsif ($t < ($pT - 1)) {
   $nCP = $cPCore * 1.01;
   $nMP = $cPMem * 1.01;
   $tCH = $coreH*$p;
   $tMH = $memH*$p;
   if ($nCP > $tCH) {
       $nCP = $tCH;
   }
   if ($nMP > $tMH) {
       $nMP = $tMH;
   }
   
   if (($nCP < $tCH) || ($nMP < $tMH)) {
       diag("Temp ($t) below peak-1 ($pT) setting to 101% of current peak ($cPCore,$cPMem)");
       $cmd = "aticonfig --odsc=$nCP,$nMP";
       diag("Executing cmd:  $cmd");
       system($cmd);
   }
    }
}


$SIG{INT}=$SIG{TERM}=sub{setfan($options{highfan}) ; exit 2;};

open(STDIN, "</dev/null");
if(!$options{debug}) {
    open(STDOUT, ">/dev/null");
    open(STDERR, ">/dev/null");
    if(fork()>0) {exit 0} # background
    if(fork()>0) {exit 0} # background
}

while(1) {
    fixRange();
    sleep $options{updateinterval};
}
20  Bitcoin / Mining support / Two useful perl scripts - part 1 (fan speed) on: July 10, 2011, 03:53:55 PM
Been wanting to share these for a while.  My miners wouldn't be able to run at peak efficiency without them.  Hopefully they'll be of use to others as well.

1.  Fan speed script

I was trying to find a link to this script (not mine) but can't anymore.  Since the header has all the author's info, and GPL2, I'll just post that here.  He did a nice job with it imho.  But as always, USE AT YOUR OWN RISK.  Farming out fan speed and GPU clock settings to another app can be very, very risky.

----- snip -----

#!/usr/bin/perl -w
# 2008 by Bernhard M. Wiedemann <bernhard lsmod.de>
# Licensed under GNU GPL v2 or later

use strict;

# those below default settings mean:
# spin fan at 100% at 80+ C
# spin fan at 8% at 48- C

my %options=qw(hightemp 80 lowtemp 48 highfan 100 lowfan 8 updateinterval 10 debug 0);


sub diag($)
{ print(@_,"\n") if $options{debug} }


sub setfan($)
{
    my($percent)=@_;
    system("aticonfig", "--pplib-cmd", "set fanspeed 0 $percent");
}

sub mydie($)
{
    setfan($options{highfan});
    print (caller(),@_);
    exit 1;
}


sub gettemp()
{
    $_=`aticonfig --adapter=0 --od-gettemperature`;
    if(m/Sensor 0: Temperature - (\d+\.\d+) C/) {

    } else {mydie "bad temp read: $_"}
    return $1
}

$SIG{INT}=$SIG{TERM}=sub{setfan($options{highfan}) ; exit 2;};

open(STDIN, "</dev/null");
if(!$options{debug}) {
    open(STDOUT, ">/dev/null");
    open(STDERR, ">/dev/null");
    if(fork()>0) {exit 0} # background
    if(fork()>0) {exit 0} # background
}

my $trange=$options{hightemp}-$options{lowtemp};
my $frange=$options{highfan}-$options{lowfan};
while(1) {
    my $t=gettemp();
    my $x=($t-$options{lowtemp})/$trange; # number between 0 and 1
    if($x<0) {$x=0}
    if($x>1) {$x=1}
    my $fan=int($x*$frange+$options{lowfan});
    diag "temp at $t";
    diag "setting fan to $fan";
    setfan($fan);
    sleep $options{updateinterval};
}
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