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1  Bitcoin / Hardware / Re: [Antminer S1 open for sale again] The last round before the Chinese New Year on: January 22, 2014, 02:51:06 AM
I now when you click system
Then backup/flash firmware
Generate achieve under download backup
You can create a full archive tar file
Inside there is the asic file inside etc/config
I wonder if you use a text editor on that, and change to 400 instead of 350
And upload that backup back to the miner
Wouldn't that be the same as editing the asic file with winscp?

2  Bitcoin / Hardware / Re: [Antminer S1 open for sale again] The last round before the Chinese New Year on: January 21, 2014, 02:02:15 AM

PSU is good. LEPA G1200 
Xed chips are on system board.

I understand where you are seeing your xs
I own 3 of them with a 4th on the way
Try powering them off, wait 30 seconds, and power them on again
If that doesn't work, and the xs stay in the same exact spot
Try to only power the main blade, that has the small circuit boards plugged into it
And see if the xs remain in the same exact spot

Randomly when I reboot them I see some random xs
If I keep clicking miner status, the xs to away as the unit heats up
If you read the setup link, it did say the unit sometimes shows xs but there is nothing wrong
Of no matter what you do (after you only power one blade) the x is always there
In the same exact spot, THEN you might have a problem
3  Bitcoin / Hardware / Re: [Antminer S1 open for sale again] The last round before the Chinese New Year on: January 20, 2014, 09:16:40 PM
ordered 1 S1s on 1/15/2014, second on 1/18/2014.
both arrived today.
one has 1 Xed chip.  second has 2 Xed chips.

neither is reaching 180.  emailed bitmain. waiting for a response.

Most of he time you get xs is when they are not getting enough power
So make sure your power supplies are good
Just to test try powering the main blade only, that's the one with the small circuit board where the network cable goes in
Of you full os, then it's probably a power issue

An x doesn't mean the chip is bad
I've gotten a lot of xs on various different chips
Most times the hashing is steady around 180
Even though a few chips have xs
reboots don't fix it, Unplug it from power for 30 seconds and power it up again
Also if you cool them too much you get xs
Ideally 47-48c is perfect
4  Bitcoin / Group buys / Re: COLOSED [GROUP BUY6] Happy New Year Giveaway Bitmain Antminer S1 180GH 3 BTC on: January 20, 2014, 03:03:40 AM
Thanks for the info. I run that fan on my 5gh miner. Really quiet. But it's only  70cfm. I'll be returning those once they come in. Just ordered two more factory fans too put on the back.  You are exiting the hot air out the second  fan?  Wouldn't the hot air just rise if both fans were blowing in?  Just curious cause I'm about to do this setup like you have. Also if i overclock both can I run one 1200 watt PSU for both miners.
Well the stock fan sucks air in, the back one blows air out

5  Bitcoin / Group buys / Re: COLOSED [GROUP BUY6] Happy New Year Giveaway Bitmain Antminer S1 180GH 3 BTC on: January 20, 2014, 12:54:56 AM
If you are planning to overclock DO NOT replace the stock fan unless you are getting another fan with the same CFM

The stock fan pushes 130 cfm
Anything less and you run the risk of overheating or damaging the unit

I added the same exact model as the stock fan, the back blowing air out
They are about $7-8 on eBay

Just search for "4715KL-04W-B56"
6  Bitcoin / Group buys / Re: PRE-SHIP AGAIN! SOLD OUT [GROUP BUY 5] 3.15 BTC Bitmain Antminer 180GH 300 Units on: January 11, 2014, 09:52:18 PM
Has anyone every tried running this thing with 2 PSU's?

I am
I'm running each blade with an HP DL380 G4 server power supply, which can put out 42amps on the 12v line
I had 4 of the power supplies, soi figured why not Smiley
I'm running one run of 12 gauge wire from the power supply to each blade
12 gauge is roughly the same as 3 runs of 16 gauge

I'm a big fan of server power supplies
These babies are designed to be run 24/7 for years


I have heard some people run both PSU's to a power bar and then switch the power bar on so everything fires up at the same time.

Have you had any of these kinds of issues?

Nope
I just always power on the second blade first, then the first blade that has the control board

I am buying a power distribution panel that can turn on and off individual outlets from a web page,
 and can measure power usage
This way if the antminers ever act up, I can reboot them remotely Smiley
And I want to know how much power they are using.
I know server power supplies are usually very efficient, and can run at 90-100% load for a very long time
7  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 11, 2014, 03:42:52 AM
I just added a second fan to each unit today
The exact same brand and model as the OEM fan that comes in the front
But I don't see rpm for the second fan
Has anyone seen an rpm reading for the second fan?
8  Bitcoin / Group buys / Re: PRE-SHIP AGAIN! SOLD OUT [GROUP BUY 5] 3.15 BTC Bitmain Antminer 180GH 300 Units on: January 11, 2014, 03:15:49 AM
Has anyone every tried running this thing with 2 PSU's?

I am
I'm running each blade with an HP DL380 G4 server power supply, which can put out 42amps on the 12v line
I had 4 of the power supplies, soi figured why not Smiley
I'm running one run of 12 gauge wire from the power supply to each blade
12 gauge is roughly the same as 3 runs of 16 gauge

I'm a big fan of server power supplies
These babies are designed to be run 24/7 for years
9  Other / CPU/GPU Bitcoin mining hardware / Re: Noise fans from Avalons, any ideas of cooling and bringing the noise down on: January 10, 2014, 02:21:17 AM
Are they 80mm fans?
I know with PC fans, the larger you get, the more cfm the fan generates, at lower speed
So if they use 80mm fan
Maybe you can get 140mm fans
Try to google the model of the OEM fans, and find out what cfm they put out
Then try to find a larger fan that has similar cfm
The other benefit of larger fan that runs slower is it draws less amps
So there is a power benefit there too
Another thing to test, is with pieces of cardboard
To try to direct the most airflow straight through the heat sinks
So you want to put a piece of cardboard on either side of the fan, and direct all the air through the heat sink
Keep it for a few minutes and monitor the temp on the software
If it goes down you can use the transparent sheets they use for overhead projectors instead
Because I don't recommend using cardboard that's flammable Smiley
10  Bitcoin / Group buys / Re: [GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s - In Stock BTC 2.4 on: January 08, 2014, 12:08:11 PM
Does it only need 12 volt power from the power supply?
Because I'd rather use server power supplies, I have some HP ones that can put out 100amps on the 12v line
I know the bitmain antminer only taps the 12v line, no 3.3v or 5v needed
I'm assuming it only takes the motherboard connector for convenience and to switch on the power supplies
11  Bitcoin / Group buys / Re: [GROUP BUY #1] AVALON GEN2 – 220GH/S – LIMITED BATCH 74 of 100 units - 2.25BTC on: January 08, 2014, 12:00:52 PM
Does it only need 12 volt power from the power supply?
Because I'd rather use server power supplies, I have some HP ones that can put out 100amps on the 12v line
I know the bitmain antminer only taps the 12v line, no 3.3v or 5v needed
12  Bitcoin / Group buys / Re: PRE-SHIP AGAIN! SOLD OUT [GROUP BUY 5] 3.15 BTC Bitmain Antminer 180GH 300 Units on: January 07, 2014, 03:15:17 AM

Maybe there's another thread somewhere for this but has anyone discussed that even with so much power of our Antminer S1, it's looking very doubtful that we're gonna get our ROI of 3.15BTC?  [I'm not complaining at all; as I suspected it from the start before I bought it  Smiley ]


I just want to focus the discussion on ROI wrt Antminer S1.  What are your plans/contingencies?


I'm basing my numbers from playing around with the S1 since last night (about 13 hours worth of data); so not really significant sample size.

Many thanks to sushi and Bitmain for such a FAST shipping and so easy setup (literally 5 minutes; of course I was timid and took my time so maybe 15 minutes setup).  I had everything ready; table, power supply, dd-wrt router brdiged via wifi to my main router (same one I'm using for my "downed" Litecoin miner).

Both of mine have been up about 40 hours, and I've already made 0.25 bitcoins
So not bad at all
And that was including some downtime, when I was figuring out about the power supplies and to get rid of some x's that were showing up, right now, both units have full oooo's

Just a thought when it doesn't become profitable to mine bitcoins
Why not switch to another sha-256 currency?

Oh and UPS sucks
Never had a good experience with them
FedEx is much, much better


  • 1.  Mine other sha-256 altcoins (and exchange for btc or ltc at cryptsy)
    2.  Sell the Antminer when it can only produce .2btc/day or after 30 days (whichever comes first)
    3.  Buy another miner from sushi if price goes to 2btc within 10 days like $ cost average on stocks except with btc (effective price for 1 Antminer would be ~2.6btc)

I was thinking same as you if btc mining gets too difficult to mine altcoins and exchange for btc.  This is exactly what I was doing just before my ltc miner crashed.  I was mining fastcoins and exchanging for ltc, because ltc mining did not produce as much when ltc difficulty shot up.

You were in a very lucky pool there!  Care to share? Smiley   I got .039 for the first 13 hours, then switched to another pool and got .036 for the next 14 hours.  I'm back with the first pool.

I'v also OC'ed to 400Mhz last night and getting about 202GH/s (average for the past 9 hours).  Cooling is important.  I got a couple of xx's in the first few minutes after OC and when I put the Antminer closer to the big fan (i got from walmart), the x's turned to o's.  Stable right now but California weather has been sunny so I'm waiting to see what happens during the day.

Thanks for your thoughts and inputs.


I first tried eligius, but it sucks
Don't like the concept of a payment queue, where they get to keep my btc for 6 days till they pay me
So I switched to slushs pool
Much better,and because you can login, you can see more accurately what each worker is doing
I have a separate worker setup for each antminer so I can see if there are any problems
I'm about 0.13 bitcoins a day
Which is right about where I should be Smiley
13  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 05, 2014, 02:34:30 PM
@kmarel, how many ants do you have and what does a Ant suck from the wall with this powersupp?

I have 2 units
How do I measure how much it's using at the wall?

http://www.amazon.com/P3-International-P4400-Electricity-Monitor/dp/B00009MDBU/


That's pretty cool
But I have 4 power supplies powering the 2 S1 units, so I don't really feel like buying 4 of them Smiley

Is it ok if I get one, and just measure each of the 4 power supplies one at a time?
14  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 05, 2014, 02:32:08 PM

Also ordered 2 extra fans for my 2 antminers, same exact fan as the original one
overall it's a very good machine


Yes I think it's a pretty good machine too.

If you do not mind, do you have a link for where you ordered those fans from? I'd like to get a fan for the other end of mine, to get a push pull config.

Are our fans 120mm by 25 mm thick?

Thank you in advance.



The fans are 120mm by 38mm
These are heavy duty fans, the specs say 130CFM, that's a lot!

Here is a link for eBay with the fans
http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_nkw=4715KL-04W-B56&_sop=15
15  Bitcoin / Group buys / Re: PRE-SHIP AGAIN! SOLD OUT [GROUP BUY 5] 3.15 BTC Bitmain Antminer 180GH 300 Units on: January 05, 2014, 02:19:20 PM

Maybe there's another thread somewhere for this but has anyone discussed that even with so much power of our Antminer S1, it's looking very doubtful that we're gonna get our ROI of 3.15BTC?  [I'm not complaining at all; as I suspected it from the start before I bought it  Smiley ]


I just want to focus the discussion on ROI wrt Antminer S1.  What are your plans/contingencies?


I'm basing my numbers from playing around with the S1 since last night (about 13 hours worth of data); so not really significant sample size.

Many thanks to sushi and Bitmain for such a FAST shipping and so easy setup (literally 5 minutes; of course I was timid and took my time so maybe 15 minutes setup).  I had everything ready; table, power supply, dd-wrt router brdiged via wifi to my main router (same one I'm using for my "downed" Litecoin miner).

Both of mine have been up about 40 hours, and I've already made 0.25 bitcoins
So not bad at all
And that was including some downtime, when I was figuring out about the power supplies and to get rid of some x's that were showing up, right now, both units have full oooo's

Just a thought when it doesn't become profitable to mine bitcoins
Why not switch to another sha-256 currency?

Oh and UPS sucks
Never had a good experience with them
FedEx is much, much better
16  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 05, 2014, 03:17:38 AM
@kmarel, how many ants do you have and what does a Ant suck from the wall with this powersupp?

I have 2 units
How do I measure how much it's using at the wall?
17  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 05, 2014, 01:05:10 AM
Stop wasting time with these sissy desktop power supplies Smiley
They are higher quality, and cheaper too

I'm using the power supply of the HP DL380 G4
It actually puts out 47 amps at 12 volt, so enough to power the 2 blades
To power it on look for the  12 pins in the middle that look like this
:::
:::
Connect the bottom left pin
With the middle 2 on the third column on the right

If facing the connector
Left 2 large connectors are ground, right 2 are 12v
So you can use one ground and one positive per blade

I know these power supplies as I used a lot of these servers at work
And my servers have been up for the past 9 years, 24/7 so it can certainly handle the load Smiley

Her is a link for them on eBay
http://www.ebay.com/itm/HP-338022-001-575W-Power-Supplies-DPS-600PB-321632-001-367238-001-Lot-of-2-/360815991110?pt=US_Server_Power_Supplies&hash=item54024f1946
18  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: January 05, 2014, 12:53:24 AM
I'm using an HP server power supply capable of 42 amps on the 12 volt line per blade, so 4 total
And I'm using one 12 gauge wire for 12v and one for geound, which is roughly equal to 3x 16 gauge wires
Wire doesn't heat up and makes it much easier to install the miner
Also ordered 2 extra fans for my 2 antminers, same exact fan as the original one
overall it's a very good machine
I freaked out when I saw a lot of x's in the ASIC status
But a few power downs, wait 30 seconds and powering on fixed that
Right now both units show full oooooooo on that screen

The stuck at etc/config/cgminer issue is the unit not being able to connect to an NTP server
I could not connect to any of the 4 that come pre configured
I used time-a.nist.gov and that worked
I'm in the east coast (DC) so not sure if this is also good for the west coast guys
But just google NTP server and a whole bunch of servers
Try to pick the closest one
19  Bitcoin / Mining speculation / Re: I want to buy the newest mining generation on: January 02, 2014, 02:06:44 AM
5 bitmain antminers is close to 1000gh/s for 15 bitcoins
And you will have that in a week to 10 days, depending on your location
It's not a pre-order, it ships jan 6th
Search for group buy 6
I ordered 2 and they are our for delivery tomorrow Smiley
20  Bitcoin / Hardware / Re: [Setup & Troubleshoot] Bitmain AntMiner S1 180GH/S miner on: December 31, 2013, 02:20:48 AM


of the 300W, how much 12V? you need about 16-20A of 12V per blade if not overclocked, and 20-24A per blade if overclocked

Scratch that Smiley
Just found a bunch of hp server power supplies
82.3 amps on 12 volt line Smiley
So one power supply per antminer s1 system

Interesting thing about the specs
At 110v the 12v line only puts out 70A, while drawing 10 amps from the wall socket
But at 220v it puts out 82.3 amps, and drawing 6.7amos from wall socket

Good thing I have both options in the server room Smiley

FYI the power supply is model DPS-800GBA
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