Block Erupter Tube Sales Information Thread [Round4, Price at <1btc per TH/s]

[xhomerx10]

Is shipping from Europe,USA or from China?

CN

NO way buying from China. My customs will rape me. They need to open store in UK.

 OR you could move to the USA.  You might save enough taxes to buy a nice little house there too depending on the number of tubes you order.

[philipma1957]

how can we order ? only from that semi english/chinese site ?

are you in the usa? there is a usa seller or two.

[xhomerx10]

how can we order ? only from that semi english/chinese site ?

are you in the usa? there is a usa seller or two.

 Ma indoiesc ca este in Statele Unite.  Cred ca locuieste in Romania pentru ca este in legatura cu Forumul Bitcoin-Romania.

[Biffa]

Is shipping from Europe,USA or from China?

CN

NO way buying from China. My customs will rape me. They need to open store in UK.

.... You'll pay the VAT one way or another. If you buy from the UK, the price will start 20% higher. I'm not sure what magical unicorn scam network you think exists that you can buy from which will allow you not to pay the required taxes.

+! This, someone has to pay the VAT somewhere along the line, either the reseller or the importer.

[jdany]

Do NOT forget..  When these boards burn up, it will cost $100+ to ship back to Hong Kong from USA for RMA. This deal keeps getting better...

I think AM has a US reseller that handles RMA's

[helipotte]

I have a board with one burnt out (popped) chip.  Would Friedcat/Asicminer be willing to ship me bare chips to cover an RMA.  I can replace the

bad chip myself.  This would be much cheaper to ship I think.

[jdany]

AM can find a reseller to stock parts.
C.mon now.
That's silly to ship everything back to China.

[Rabinovitch]

Brief

A full device consists of:

4 hashing units
4 thermal pads (optional, on demand)
1 to 1/8 ethernet controller (multiple devices can share one controller)
1 cooling kit
1 fan


Contacts
Bitcointalk ID: phasebird
Email: sale@bitquan.com
Customer service: help@bitquan.com
Website: www.iasicminer.com

Ok, sorry if any: can I buy one (or two) such "full devices"? Is controller included in package or I should order it separately?

The website is in Chinese a half, how can I use it for ordering?..

[bitsalame]

Brief

A full device consists of:

4 hashing units
4 thermal pads (optional, on demand)
1 to 1/8 ethernet controller (multiple devices can share one controller)
1 cooling kit
1 fan


Contacts
Bitcointalk ID: phasebird
Email: sale@bitquan.com
Customer service: help@bitquan.com
Website: www.iasicminer.com

Ok, sorry if any: can I buy one (or two) such "full devices"? Is controller included in package or I should order it separately?

The website is in Chinese a half, how can I use it for ordering?..

For small orders you must buy through an authorized reseller.

[whonesta]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

[helipotte]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

How did you get an RMA?  I purchased through Canaryinthemines's GB and can't get a response from him.  Did you E-mail help@bitquan.com?

It has been 2 days and not a peep from anyone.

[bcollan]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

Gee, I can't see why you guys are having any thermal issues at stock clock speeds. My 3 have been running continuously at 2.4T in the quite warm (90F+) mining area of my basement. With 1 fan, though the handles are pointing outwards. I hate to mention this, I'm only trying to help, but you guys are peeling the plastic from both sides of the thermal pads before use??? 

I had to ask since my three have been amazingly reliable and robust so far...
The air coming out the center is as hot as a BIG blow dryer, and the chips are too hot to touch, so I'm wondering about longevity, but as long as they hash for six months I'm fine.

[xhomerx10]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

Gee, I can't see why you guys are having any thermal issues at stock clock speeds. My 3 have been running continuously at 2.4T in the quite warm (90F+) mining area of my basement. With 1 fan, though the handles are pointing outwards. I hate to mention this, I'm only trying to help, but you guys are peeling the plastic from both sides of the thermal pads before use???  

I had to ask since my three have been amazingly reliable and robust so far...
The air coming out the center is as hot as a BIG blow dryer, and the chips are too hot to touch, so I'm wondering about longevity, but as long as they hash for six months I'm fine.

 I remember a discussion about the fan arrangement and whether it should push or pull air through the tube.  I set mine up to push since I didn't want the fan and it's bearings to heat up because I thought that would cause flow issues.  I have had no problems with the stock fan in a push config at clock of 280 and my 2 tubes are getting 1.7 T more like 1.68 T.

[Finksy]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

Gee, I can't see why you guys are having any thermal issues at stock clock speeds. My 3 have been running continuously at 2.4T in the quite warm (90F+) mining area of my basement. With 1 fan, though the handles are pointing outwards. I hate to mention this, I'm only trying to help, but you guys are peeling the plastic from both sides of the thermal pads before use???  

I had to ask since my three have been amazingly reliable and robust so far...
The air coming out the center is as hot as a BIG blow dryer, and the chips are too hot to touch, so I'm wondering about longevity, but as long as they hash for six months I'm fine.

 I remember a discussion about the fan arrangement and whether it should push or pull air through the tube.  I set mine up to push since I didn't want the fan and it's bearings to heat up because I thought that would cause flow issues.  I have had no problems with the stock fan in a push config at clock of 280 and my 2 tubes are getting 1.7 T more like 1.68 T.

I've got 2 with fans arranged as pull, clocked @ 290 Mhz in a quite warm 32*C+ basement with a bunch of other miners.  Getting the same speed as you on average, going to try 280 see if I get any better.

[xhomerx10]

+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 

Gee, I can't see why you guys are having any thermal issues at stock clock speeds. My 3 have been running continuously at 2.4T in the quite warm (90F+) mining area of my basement. With 1 fan, though the handles are pointing outwards. I hate to mention this, I'm only trying to help, but you guys are peeling the plastic from both sides of the thermal pads before use???  

I had to ask since my three have been amazingly reliable and robust so far...
The air coming out the center is as hot as a BIG blow dryer, and the chips are too hot to touch, so I'm wondering about longevity, but as long as they hash for six months I'm fine.

 I remember a discussion about the fan arrangement and whether it should push or pull air through the tube.  I set mine up to push since I didn't want the fan and it's bearings to heat up because I thought that would cause flow issues.  I have had no problems with the stock fan in a push config at clock of 280 and my 2 tubes are getting 1.7 T more like 1.68 T.

I've got 2 with fans arranged as pull, clocked @ 290 Mhz in a quite warm 32*C+ basement with a bunch of other miners.  Getting the same speed as you on average, going to try 280 see if I get any better.

You're running in a lot warmer environment that I.
One of these in in my basement ~23C and one upstairs ~ 25C

[WBF1]

@ friedcat and rest of the team...

Have you given any thought to possibly selling upgrade kits when we move beyond the BE200?

What I mean is, shouldn't it be possible for the next generation of chips to design boards with the same form factor so we can all reuse our nice, tube-shaped heatsink?

Just an idea I had... I know it's something I'd be interested when/if my tubes are no longer profitable. Should save on manufacturing and shipping. And I guess it's eco-friendly too (reduce, reuse, recycle.... In this case, reuse!).

[klondike_bar]

@ friedcat and rest of the team...

Have you given any thought to possibly selling upgrade kits when we move beyond the BE200?

What I mean is, shouldn't it be possible for the next generation of chips to design boards with the same form factor so we can all reuse our nice, tube-shaped heatsink?

Just an idea I had... I know it's something I'd be interested when/if my tubes are no longer profitable. Should save on manufacturing and shipping. And I guess it's eco-friendly too (reduce, reuse, recycle.... In this case, reuse!).

of course its possible - look at how sales were done this time with each component being priced individually. Shouldnt be any rason not to build a compatible BE300 PCB

[jusu_plus]

I tried to find this out by searching the forum but didint.

What is the power supply requirements for one 800GH/s tube? is 85A enough (1000w, 80+ PSU), or do I need more and how much?

How bout overclocking, how sensible is the device to HW errors and temp?

[TheRealSteve]

What is the power supply requirements for one 800GH/s tube? is 85A enough (1000w, 80+ PSU), or do I need more and how much?

Spec
Hashrate: 200-215GH/s per hashing unit in normal mode, 800-850GH/s per full set.

Power consumption: ~0.9 J/GH board-wise. Gets higher along with
ambient temperature. On-wall power consumption relies on PSU efficiency.

0.9J/GH = 0.9W/GH/s
850GH/s * 0.9W/GH/s = 765W

However, Dogie recommends:

Power.Consumption

~900W, 1025W (OC)

See also [Guide] Dogie's Comprehensive HashRatio Tsunami Setup [HD] :: Powering for some PSU suggestions and powering details, and some tidbits about overclocking.
(you can also search this thread for 'overclock' to read just the posts that mention 'overclock' - just use the search field in the top right while browsing this thread)

[Blazed]

What is the power supply requirements for one 800GH/s tube? is 85A enough (1000w, 80+ PSU), or do I need more and how much?

Spec
Hashrate: 200-215GH/s per hashing unit in normal mode, 800-850GH/s per full set.

Power consumption: ~0.9 J/GH board-wise. Gets higher along with
ambient temperature. On-wall power consumption relies on PSU efficiency.

0.9J/GH = 0.9W/GH/s
850GH/s * 0.9W/GH/s = 765W

However, Dogie recommends:

Power.Consumption

~900W, 1025W (OC)

See also [Guide] Dogie's Comprehensive HashRatio Tsunami Setup [HD] :: Powering for some PSU suggestions and powering details, and some tidbits about overclocking.
(you can also search this thread for 'overclock' to read just the posts that mention 'overclock' - just use the search field in the top right while browsing this thread)

I would at least use 1000 watt for one of these (more like 1200 watt PSU). The "850GH/s * 0.9W/GH/s = 765W" is not real world usage... more like 900+ watts at the wall.