Technobit HEX4M - 400GH BlackArrow based miner reviewed

[lenny_]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking, at stock speed (as advertised)? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add this device to my small chart, showing efficiency of various ASIC miners. Thank you!

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[2GOOD]

Would it be possible to run 25 hex4m boards from a single netbook/laptop/pc, of course with the necessary usb hubs?

I think it should work, maybe 6 host USBs each with one 4 port hub = 24 devices, I'm not sure about nested hubs.

....

Would you be able to take a detail macro shot  of the voltage regulators. I'm curious what Marto has used since it looks like some Infineon FETs. Just wanted to check it out

So pics if you can or chip package number if you can't?

I'll try to take one later.

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking, at stock speed (as advertised)? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add this device to my small chart, showing efficiency of various ASIC miners. Thank you!

All the info you need is in the OP.

TL;DR
400 GH/s
470W @wall
423W device consumption
FSP Aurum S 600W Gold PSU 90%

[Cortex7]

@2GOOD, thanks for posting this great review!

[HardwareReviewer]

Great review

[Cortex7]

Cons:

• No thermal sensor

@Marto wrote that the temp sensor hardware is in place but it needs extra firmware code to get the temps out (to cg-miner I presume?)

Out of my 48 coolers, some of the bases look a little suspect and will probably need lapping a little, knowing the die temp would be super handy for thermal debug.

[2GOOD]

Nice review.

Have you tested it undervolted to 0.6V?

Wondering if it can go anywhere near 0.5w/gh at the wall like BA claims.

Thank You

I tried 700Mhz at 0.70v it was hashing with ~260GH and some HW errors, but can't recall the consumption, if you give some settings I'll be glad to test the undervolt capabilities.

Not sure what the clock freq should be at 0.6v. Maybe try ~500MHz?

Some Undervolt tests

[btmtb]

Some Undervolt tests

Awesome, most interesting graph yet 2GOOD. 760/740 @ 303G looks like an interesting sweet spot in uses where power draw is a major consideration. It is a shame to waste the potential GH's, but considering I've got a couple of these coming I think I'll use this as a starting point.

[ravin]

Awesome!!! Added to the Mining hardware comparison sheet.
https://docs.google.com/spreadsheets/d/1Gtj8ts3zEUZPwSBZQnYZwi__zGfg-0SKVIdH_17GqYw/

[Cortex7]

Brilliant underclock data and presentation. 

[jimmothy]

Brilliant underclock data and presentation. 

+1 thanks 2GOOD

0.72 w/gh is pretty good but still a bit disappointing that it's not 0.5 w/gh at the wall like BA claims. (not surprisingly)

[ducmami]

price in euro is hard to compare

[eestimees]

Anybody knows when is the shipment if buying now? website still says 15th Aug...

[Cortex7]

Anybody knows when is the shipment if buying now? website still says 15th Aug...

Nobody knows for certain, I was in the blackarrow groupbuy (batch#1), Order for HEX4M boards accepted and paid ~20th July, still awaiting delivery.

[eestimees]

Anybody knows when is the shipment if buying now? website still says 15th Aug...

Nobody knows for certain, I was in the blackarrow groupbuy (batch#1), Order for HEX4M boards accepted and paid ~20th July, still awaiting delivery.

ok.. I just found that to be the good platform to build a heater for my parents (watercooled)

[btmtb]

The way things are going Marto might actually end up cornering the market with his Hex4M, I'm thinking that the Prospero's might be banned from import into the EU once the RAPEX system catches wind of the latest goings-on with the self combustion and erratic/over-spec power draws.

[2GOOD]

http://sven-goessling.de/11/09/2014/400-ghs-hex4m-ba-minion-technobit-miner/

[marto74]

New version http://technobit.eu/0_3_9.rar
!! Recomended for Minion based hex4M

[Bicknellski]

Technobit  Up to 10 week delays in shipment of some customers Minion Group Buy Units.

The hurt / delays continue for some customers of Technobit who have paid substantial amounts for miners over 10 weeks ago.

I agree with scrappy here, Batch 1 should of been sent out by now. reading the thread its totally unprofessional sending out small orders first.
i see some people waiting 10 weeks now for there order to be shipped out and nothing. Seems people with large orders are getting shafted.

I think compensation is due MARTO!!!!

People have been patient with you since you had a problem with the boards, but this now seems to be resolved.
So what exactly is going on??

i do not what to take legal action as BFL are facing and now KNC miner, marto.
You really havent provided any updates to people with large orders on the forum at all.

Please provide a clear update on what is going on and when everyone's orders are going to be fulfilled and compensation package.
with have been patient, but you have taken are patience for granted now.

There is seriously something wrong with this thread. Folks Martin has yet to deliver batch one yet we have 3 confirmed cases of him shipping batch 2. He says "small orders" Fuck that shit. Mine may have been large and paid in fiat. I have as of to date received 6 of 50, and Marto has promised 6 shipping dates and only sent once!

 Guys, enough of the bullshit.

 I paid in fiat for a flat conversion, have been lied to about shipping, and seen batch 2 orders go out before mine. Check the thread, I was in page 2 and traded in 2 x3's and paid in fiat. I know I am not alone here as I have spoke to many of you in pm's. Enough with the BS, bring it.

scrappy do, dam so shipments are just trickling out. i would of thought at least batch 1 would of been completed by now

I haven't received a single one of my 88 boards. My chips have been at technobit since July 17th.

Marto any news when batch 2 will be shipped, its been over a month now since you received my chips. ive emailed you on your site, 2 weeks ago and no reply.
would like to know whats happening with those.

you going to be offering any compensation for late deliveries now. awaiting 25 boards   and counting

 No offense Guyver, but he hasn't even shipped batch one out. Hopefully he will not ship out anymore batch 2 like the mistake made last week. I just got my first partial shipment today 6 of 50. I know its been over a month for you and I hate it, but it has been over 10 weeks for some of us.

[loshia]

Hello led boy how are you today
Did you hired a young gifted boys to write a bot for you?
You are pathetic ...

[Bicknellski]

https://bitcointalk.org/Themes/custom1/images/post/thumbdown.gif to Technobit... they need to REFUND or COMPENSATE those customers. Trying to spam your way out of compensating people is not going to work this time Loshia.