'Code' ends @ the wall plug.

You're saying that the wires that came with the PSUs designed for 110VAC will be too dangerous?
I think you missed electricity 101.
The size of wire needed depends on current not voltage.
The insulation on the wire must also be apropriate for the voltage.
They will be carrying 1/2 the current @ 220VAC that they would be @ 110VAC.
I doubt you will find 110 VAC wire that is not also properly 'insulated' for 220VAC.
Listen to the known pro with a license on the line (your electrician).


YMMV

Same level of safety if correct plugs are properly installed.
Having your electrician change the ends is no more dangerous than having the same guy install the outlets.
Plugs that have screw terminals for the wires are better than molded plugs if you consider they can be reused/repaired.
I'd go with whatever gets the miner hashing soonest, that is also safe, unless there is a huge price difference.


YMMV

Use what you can get your hands on quickly.
Just keep in mind that modular is not 'better' if you have the choice.
The EVGA looks like it will work.
If I had an unpowered 3.5T @ home I would use whatever I could have installed in 2 hours!
Each possible day delay you could spend $50 more and come out even considering that is close to what you could mine in a day.
It is a VERY subjective decision involving YOUR budget and shipping time etc.

I use two (IBM) DPS-2000BB 2kWatt PSU per Neptune. (220VAC)
They are only USD $50.00 each with free shipping.
Add breakoutboards, fan, and cables and it's about $130 per 2kW.
I started with homemade connectors on the PSUs.
https://i.imgur.com/epKz23R.jpg

Some consider a 4kW rail too big for safe home use.
It _IS_ a valid concern if miner are near flamables.


YMMV

If you get ATX PC PSU's you might consider NOT getting modular ones.
The extra connectors is just another possible point of failure.
(this would prolly require more smaller ones, as big ones are often modular)


YMMV

Two 80mm thick, triple 140 radiators. (Alphacool)
https://i.imgur.com/itLOTSL.jpg
(not great radiators, too few fins per inch, overpriced also)
I plan to replace with used truck radiator, whatever fits the fan size.

The bottle is to block air from the middle.
There is much missing in the pic, I don't have open sides.
What is pictured is just as it looked right after I got it and got all PCBs water cooled.
Everything has and will change again soon, major rebuild time approaches.

The PCBs will flip around with all hoses in the center.
I will eliminate as many 90 degree connectors as possible. (a weak point prone to leaks)
New power wires and heat sinks for the VRMs.
I have PCBs for the PSU connectors they did not exist yet when pics were taken.
-> https://bitcointalk.org/index.php?topic=637595.0
Still deciding on a case for it,
I'm contemplating a wood cabnet with glass doors.
Or copper pipe and glass for a steampunkish look.
The air flow and air filters design is still fluid also.
I'm looking for a large cool lookin squirrel cage fan to incorporate.
(like what you find in small forced air furnace)

One of the fun things is planning the modding pit stops to be fast as possible.

If I'm lucky I'll get it to look complete once and get pics before changing something.
If I am very very lucky what works well can also look cool.


YMMV

yes, rev 1.0 of my prototyping rats nest.
https://i.imgur.com/9T8lRc2.jpg

YMMV

Thats what I did on day 1.
https://i.imgur.com/3pVt5ae.jpg
I tested them first on the PCIe then voided warranty.

BTW 2 x 12AWG in each direction still gets warm.
Will replace 2x12AWG with 3x12AWG next maint pitstop.
My plan is to use 2 x 12/3 extension cords for the wire.
(50% more copper plus better flexability)


YMMV


EDIT
I use two DPS-2000BB per Neptune @ USD $50.00 each.
(4kW available but only runnin @ 50% of rated output for better efficiency)
https://i.imgur.com/epKz23R.jpg

Bummer, (regarding tax and customs fees)

I had assumed incorrectly from your statement that it was in the US already.

YMMV

To date I have not heard of a US customer needing to pay anything extra.

It seems like you are basing expectations on foreign customs/tax laws.

I hope you are pleasantly suprised re:shipping and taxes.
2 Sat. and 1 Nep here, in US, I never paid extra @ the door for package.

Thx for sharing the order and shipping info.


YMMV

BTC is capitalism in it's purest form.

I find it humorous that folks expect the reward without the risk.

I also find it humorous that some feel obligated to TELL others how they SHOULD act.
That is the domain of religion and/or collectivism not capitalism.

Playing the capitalist game by religious rules may not be too wise.

YMMV

The numbers from KnC about KnC miners power consumption are verified many times by users.
You can call it lies but it is fact.

Are KnC lying about Spoon numbers?


YMMV
tolip

@ full power one PSU pulls about 8.6A (@ 238VAC)
2 PSU for same load is same AC load of 8.6A.

It is not how many PSU's attached to AC, it is the load on PSU's that is important.

EX: 4 2kW PSU for a 4kW 'load' would be OK as each PSU would be @ 50% of output power.

YMMV

All I did was tell Searing he did not need to replace his PSU because he has Y's coming...

and the sharp sticks appear poking one another.
One big happy fambly

IMneverHO
EVERYONE SHOULD LOOK @ THEIR CABLES to 'KNOW' what AWG is used.
Things change and not all are created equal, even with same model #.
Blanket statements about models, brands, AWG etc. should be verified if possible.

The whole consumer modular PSU issue sux!
I already owned my LAST(never again) modular PCIe PSU for a miner long before the Nep shipped.
It is a SAFETY issue not limited to use with any brand of miner.

2kW server PSU delivered to door USD $50
Breakout board for 2kW PSU USD $60
(DIY folks can use $15 connector and solder wires direct)
16AWG PCIe cables ~$5 each.
Power cable for PSU USD $10
You also need a fan to cool the PSU $20

I use 4kW(2 2kW PSU) per Nep for 92% PSU efficiency.
I can run a nep on 1 PSU if I need to. <<--not recommended

The DPS-2000BB from ebay (watch out for shipping costs!)
The breakout board from sidehack/Gekkoscience.
PCIe cables from sidehack or CABLEZ.

The preorder period is over, he is assembling and shipping
https://bitcointalk.org/index.php?topic=637595.0

The only downside is the 2kW PSU are 220VAC.
For an extra ~$100 you could MAKE 220VAC @ home in the USA with two 110VAC outlets.
(The biggest cost is 12/3 extension cords you may already have)
Many 120VAC folks already use extension cords, same as DIY 220VAC.

There are also 750W server PSU solution bundles available.
4 @ 750 for a nep gives you one spare in a pinch.

IMneverHO
it is the better solution also @ lower total cost!

If your 'Plan A' does not include a 'Plan B' (spares when possible) it is a flawed Plan A.
Unless you just mine as a hobby...............

YMMV

LOL, do not get buried in the wreckage of your future.

If you HAVE the Y adapters and use 2 18AWG PCIe cables you will be OK.
This also helps overcome a limitation with the 1200i 'rails'.

If you inspect your cables you may find,
the cables with 2 PCIe ends have 16AWG to the first PCIe,
and 18AWG to the second.
If you have such cables, only use the first 16AWG connector.

If you do NOT have Y adapters use 16AWG minimum PCIe cables.
2 PCIe @ 16AWG to Y adapters is even better.

YMMV

I notice you have 2 cubes pulling 390 each @ wall assume controller rides for free.
Your 3 cubes pull ~415 each no freeloader controller.
390 x 3 would be 1170 W.
If you moved one of the 3 over you could determine if it is,
A individual PSU efficiency issue,
a PSU near max is much lower efficiency on both or,
a hungry cube.

YMMV

Thank you for the reference.

From my admittedly biased position I'd say the average Nep is 3.4T  at a squink below 2kW.
Completely stock PARTS and tuned gets ya to 3.5T @ 2kW.
3.55-3.58T is doable with some added airflow, same 2kW @ wall BTW.
(the gains are lower errors not faster clocks)

To accurately compare would require seperating 110VAC from 220VAC PSU.
Also need to take into account PSU efficiency and it's % loading.

Ideally all units tested on same PSU.
Next would be all units mesured under 'hopefully' similar conditions.
Next would be at least reporting the conditions during measurement.

The reality is we don't have the luxury.
The boxes are or should be too busy hashing to stop for ideal testing.

I have no idea what 'average' is but I have better numbers.
I am also under the impression from posted 'Advanced' pages that my numbers are not ununual.

Repeating, I know I have a biased opinion so take this post as just that, OPINION.
I'd say 3.4 @ 2kw is very common for typical customers.
My numbers for reference,
https://bitcointalk.org/index.php?topic=170332.msg8053504#msg8053504

Please note, I don't think your collection is biased, just that my opinion must be as I own one.

Very well done long term effort!!!
I appreciate your contribution.
Thank you for your time.

YMMV

I'd guess your VAC is really 231 @ miner not 220.
You neglected to show ASIC total Watts in pic.
Still good numbers, 3.42T is best possible @ 475.

AND/OR

The current clamps have a % accuracy in their specs.
Worst case is low end and 15A is low end for a typical 200-600A clamp.
Unless you have calibrated yours and know,
go with worst case and add that % to total for safety.

The VRM's have an accuracy spec also.
+ or -  2.5A per VRM @ 1.0 VDC output
(spec is @0-40A, no claim made for 50A conditions on 40A part)
http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146435&Lang=EN&HighestFree=Y
Bottom of page 7.

So ALL numbers from miner are just ballpark.

If it were linear, 475MHz is 5% below 500MHz.
285W is 5% below 300W, you are (x)W higher ~290.
That is the price for hot VRMs IMneverHO!
Unless the ASIC is more 'efficient' @ 500 than 475.
Stranger things HAVE happened but not often.

Just like the LM75 issue, not perfect status reporting but they run!

YMMV

Total is 2000 Watt @ wall.
(238VAC x 8.4A)
3.55 TH/s.

If by "brick" you mean 'cube' divide each number by 5.
400W @ wall
700GH/s
~1.75 GH/s per Watt
or
~0.57 Watt per GH/s


If you are interested in the 20nm ASIC itself, subtract 25% from Watt @ wall
300W @ ASIC
700GH/s
~2.33 GH/s per Watt
or
~0.43 W per GH/s

YMMV

The Cables way is SAFER also.
This applies to any consumer PSU with PCIe connected to KnC 2014 miner.

YMMV

Another slightly updated list of handy Neptune commands.
They do not change anything on miner.


I keep a file on miner for reference and  cut/paste commands.
Re-running a command is just a matter of finding it with the up arrow.
The sed stuff is crude and sub-optimal but 'almost' not cryptic.
Linear method applied, shortcuts exist but complexity can rise fast when you mix and match.

Different Tangent...
I got the Altera JTAG clone thingy today.
It's time for me to put up or shut up re: JTAG
Smaller Freq steps in useful range will totally depend on max "Fvco" on the ASIC.
http://www.altera.com/support/devices/pll_clock/basics/pll-basics.html
We know the input is 25MHz so it is a matter of how many bits adjustment available for "M".

EDIT. deleted incorrect confusing statement regarding step size.

I also have my alternate 'flexible' JTAG thingy ironed out.
I may use that to sniff the ribbon cable traffic instead of storage scope if it is fast enough.
Time to gut the Hoopiter and scavenge a controller. (sniffle)
I spent the interim searching for ways to reduce power consumption and reduce HW%.
Nuthin concrete but still have unexplored ideas up me sleeve.

So far cooling the VRM is the best result worth noting.
Volt adjustment can add just a tad too.


YMMV


P.S.
Way way way off topic but possibly humorous to some.
Life decided I needed a break from my routine.
My cat came home in middle of night with a face full of skunk spray.
Direct hit to the mouth and eyes.
I managed to irrigate her eyes/face for a few minutes without a single scratch or bite.
When bathed with just eye safe flea shampoo the stink only lasted a day.
Makes me wonder if it was a cheapo alternative used by a human.
I have handled refined mercaptin and a small drop lasts for weeks.
(In a laboratory setting, I would never inflict it on any living thing)
Either way I hope my cat paid attention in class because a lesson was paid for and delivered.
Not sure what my lesson was but I know there is one because I paid a small price too.
It probably has to do with radiator placement by screen door.
Does my Neptune attract critters?
Just an hour ago I discovered a neighbor cat wanting in.
Yee Haa! Life has surprises enough for everyone!
I wonder what the "skunk's" version of the story is.