Hello, I am getting only 140 ~ 150  GH/s  for the standard setting:

option 'freq_value'     '4d81'  #350M
option 'chip_freq'      '350'
option 'timeout'        '40'

I tried a few other setting mentioned here but does not help.
How do I trouble shoot this and get the hash rate up?
I updated the firmware, should I also update the cgminer ? I yes, how do I do this. I can't find instructions.

For pre-order, I means the company does not have the miner in production. Instead they start to sale when the miner is in concept or design or testing phase.

For Jingtian miner, you pay the money and then the company buy the chip, materials and put it in the factory and doing some testing. That is my guess. Or they could estimate the demand and keep producing the miner and this way you pay the money and then the miner is shipped in a few business days. Not sure how they will handle the shipping to the US right now.

Hashceasar84:

As I have told you in PMs, my intuition is that you are a good guy, with sufficient experience to operate these miners, and you have an order receipt so that is something too.  Presumably, you should have your miners any day now and put to rest the "scam" allegations.

I would love to buy more shares in this GB, but what is stopping me is the possibility that this GB turns out to be a flameout.  I have already been scammed more than once (twice if you count Black Arrow as a scam, which I do at this point).  If you consider for a moment that companies with employees (Butterfly Labs, Black Arrow, etc.) can be scammers, then it is not a far stretch to see how someone like yourself, who starts out with good intentions, might end up flaming out.

I have urged you in PMs to do a few simple things that would put everyone's mind at ease.  These do NOT require escrow of money, which I know is something you are not comfortable doing.  Without rehashing the escrow discussion, I think you should consider taking the following steps which will certainly put my mind at ease.  All of these steps are merely to VERIFY that you are who you say you are, and that you have the orders you said you had in your name, and that you have planned for the future. 

(1) Contact a TRUSTED member of this forum and ask them if they will verify you.  Any "hero" member who has multiple positive trust reputation points and no negatives, is probably a good choice.  I suggest SebastianJu as I have dealt with him personally, but there are many others.  You can also look at the list of members who do escrows - NOT as escrow holders but just as a list of trusted members you can contact.  You can probably find someone who is Italian which will eliminate the language barrier.

(2) Provide whatever information that TRUSTED member requests for verification.  He or she will probably ask to see your passport or government ID, utility bill (to verify your address), and the order from Cointerra.  They may ask to be on a call with you to Cointerra to verify the order and order date.

(3) As the trusted member to post in this forum including what they were able to verify and how. 

(4) I think you could provide more details on how you are planning to handle the power requirements of the two miners, and the network access.  Each miner will need its own circuit most likley. So have you run independent circuits to a room already?  Are you doing that yourself if its not done already?  How many amps do you have on your panel?  Simple questions for an electrician to answer but it will tell everyone you have thought this out.  Similar questions for network access.  What kind of internet connection do you have (DSL, Cable)?  How are you planning to bring the internet access to the same room as the miners (hard wire cat6?  wireless?)?  Do you have a good firewall with stateful inspection and DDOS prevention (to prevent DDOS and other attacks that have plagued some miners?)

How Incan manual put max speed at fan at s1

Welcome to new difficulty 3.15 bilion

But 8000$ is too much....

+1 make this a sticky

Hehe you trying to be sneaky and stealth mine on somebody else's property?  Be warned that is considered theft in most countries unless you have consent.

If you're not stealing, an easier option would be to undervolt the card (if possible) and it should put out a lot less heat since power is determined by the sqaure of the voltage as opposed to linearly with the clock speed.  A drop of 0.1v or 0.2v on the core will put out a lot less heat and then u don't need to spin the fan hard, you just mine about 80-85% of max speed.

hi all
if anyone needs a coupon code for 0.2btc PM me, i guess it's a transferable ID.
i'll send the code first to a member with let's say activity > 50 for a small tip if it works.

code expires on February 20. Shame they don't have anything in stock yet.

 

Might be worth getting 1 since you have a .2 coupon. 1.25 isn't too bad

Update on website


The good news is that with a 2 week delay and no price drop I don't need to hammer the website at 3pm to try and get an order in.