IBM DPS-4KW PSU (Dual DPS-2000BB) Breakout Boards and Packages!!!

[thesmokingman]

Not sure Kilo,  when I was testing via the EVGA which connects the S7 to my 120V outlet to my Wemo Insight, it was showing pulling 1540W at the wall.  I would assume the EVGA G2 1300W efficiency rating is similar to the IBM PSU or worst as the 2KW PSU is not Platinum.    So if I use 1540 x 90% which I doubt the IBM PSU is that efficient = 1386W x 3 =4158W.  Seems overloaded to me but I don't have any tools to measure wattage for my 240V line.

Also I think your math above may be off by 1 digit perhaps typo or close key, but 1290W at 93% efficiency from Bitmain info x 3 S7 is 3870W.  These PSU are no where near 93% and even if they can get 90% they're at 100% load.  I think people are saying these are somewhere in the high 80s range efficiency right?  That would make it way over.  I'm running them now and the garage is plenty cold so it's not an issue right now, but concern when spring / summer hits.

You are correct, I calculated at 1210 (oops), Finsky has corrected me below.  But to clear up, the PSU puts out 2000 watts and the efficiency has to do with the draw at the wall and not how many watts are put out on the 12 volt side.

@Finsky, do all of the revisions have the voltage trim pot on the inside or only the older revisions?  I want to order some more packages but do not necessarily need the trim on the breakout board since it is so easy to adjust on the inside.  thanks

Jabber confirmed me that up to Rev10 they have all the internal Pot.

HerbPean- Here is a link to some useful information I found in my searches to adjust trim pot for my REV1 DPS-2000BB. (From an RC Car forum) From the reading, REV9M and higher require modification before the trim pots on those PSUs can be modified.

http://www.rcgroups.com/forums/showpost.php?p=18117345&postcount=611

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[HerbPean]

Not sure Kilo,  when I was testing via the EVGA which connects the S7 to my 120V outlet to my Wemo Insight, it was showing pulling 1540W at the wall.  I would assume the EVGA G2 1300W efficiency rating is similar to the IBM PSU or worst as the 2KW PSU is not Platinum.    So if I use 1540 x 90% which I doubt the IBM PSU is that efficient = 1386W x 3 =4158W.  Seems overloaded to me but I don't have any tools to measure wattage for my 240V line.

Also I think your math above may be off by 1 digit perhaps typo or close key, but 1290W at 93% efficiency from Bitmain info x 3 S7 is 3870W.  These PSU are no where near 93% and even if they can get 90% they're at 100% load.  I think people are saying these are somewhere in the high 80s range efficiency right?  That would make it way over.  I'm running them now and the garage is plenty cold so it's not an issue right now, but concern when spring / summer hits.

You are correct, I calculated at 1210 (oops), Finsky has corrected me below.  But to clear up, the PSU puts out 2000 watts and the efficiency has to do with the draw at the wall and not how many watts are put out on the 12 volt side.

@Finsky, do all of the revisions have the voltage trim pot on the inside or only the older revisions?  I want to order some more packages but do not necessarily need the trim on the breakout board since it is so easy to adjust on the inside.  thanks

Jabber confirmed me that up to Rev10 they have all the internal Pot.

HerbPean- Here is a link to some useful information I found in my searches to adjust trim pot for my REV1 DPS-2000BB. (From an RC Car forum) From the reading, REV9M and higher require modification before the trim pots on those PSUs can be modified.

http://www.rcgroups.com/forums/showpost.php?p=18117345&postcount=611

They still have the two pots to adjust the Amp and Voltage. You can't just use jabber external control without doing the modification but you can still change the Voltage with the internal pot.

The one on the right is the voltage adjustment and the one to the left is the amperage adjustment (I do not mess with that one -

Took off 6 screws to get the top off, cut off that piece with some snips, and back together all in less than 10 minutes.

[Finksy]

I'm back and will be replying to PM's for the next 6 hours...

Thanks for the link to Kilo's mods.  That is a fantastic solution that doesn't require the early-rev PSU's, and saves me from soldering the damn SMD chips & pots! Very cool and a great solution.  Another clean way to do it would be to use a stepped drill bit until the adjust pot is accessible.

[kilo17]

I'm back and will be replying to PM's for the next 6 hours...

Thanks for the link to Kilo's mods.  That is a fantastic solution that doesn't require the early-rev PSU's, and saves me from soldering the damn SMD chips & pots! Very cool and a great solution.  Another clean way to do it would be to use a stepped drill bit until the adjust pot is accessible.

I did the drill thing on the 1200's and takes and extra 2 minutes 

[HerbPean]

I'm back and will be replying to PM's for the next 6 hours...

Thanks for the link to Kilo's mods.  That is a fantastic solution that doesn't require the early-rev PSU's, and saves me from soldering the damn SMD chips & pots! Very cool and a great solution.  Another clean way to do it would be to use a stepped drill bit until the adjust pot is accessible.

I did the drill thing on the 1200's and takes and extra 2 minutes  

I will do the same !

[Finksy]

Also, all PCIe cables and C19-C20 cables are back in stock (for now, lol. Ordering more now...)  I am working at obtaining some C19 to NEMA variations for a very reasonable price without too large a MOQ.  As soon as I can make it happen I will, PM me if you have preferences (NEMA 5-15P, 6-15P, 5-20P, 6-20P they are all built to handle the same amount of current, but have blades orientated differently to comply w/ code)

[nhando]

Finksy / J4bberwock's 4K bundle is the real deal folks.  So Sexy and So clean clean!  Super quiet and probably easily the best bang for the buck for powering per S7 / Avalon.   I was able to power 3 x S7 OC at 731M for 3 weeks and test it up to 90 degree heat, no issues.  Although I would never recommend OC any box unless you can maintain temperature control in the low 70s.  I have both the Voltage control and non voltage control versions.  I wouldn't recommend pushing voltage too high and it should always be done in a very cool environment or you could risk burning your boards.  Look at how clean the 4K bundle looks with the Ultra Kaze fan.  I can even put it on the side and let the fan push all the hot air toward my hot zones and let it vent out to the attic.  It works well having the fan push sideways or upward, see pictures.

[Finksy]

PSU's & Package prices reduced, cost gone down a bit.  May have a source for better-priced 24" PCIe cables which will bring costs down significantly.

[alobodys]

PSU's & Package prices reduced, cost gone down a bit.  May have a source for better-priced 24" PCIe cables which will bring costs down significantly.

Good evening Finksy,
I am interested in these package deals, are these the new prices or are they different?


"The "Double A (Antminer/Avalon)" Package - $195
Enough to power 2x Antminer S7's for as cheap as possible
 - 1x 2880W PSU
 - 1x Breakout board
 - 20x 24" PCIe cables
 - 1x C19-C20 Cable",

and also this deal,

"The "Triple A Package" - $220
Everything required but fans to power 3x Antminer S7's. EDIT: Newer batches (8+) of S7's draw approx. 1300W DC.  Will be running PSU's @ near 100% load, and will require significant cooling.  Reducing load would be recommended for longevity of PSU's.
 - 1x Standard 4K Breakout Board
 - 2x DPS-2000 PSU's
 - 30x 24" PCIe cables
 - 2x C19-C20 cables
For Voltage adjustment, Voltmeter & Early-Rev PSU's, add $20),

Are these available at this time? Please let me know if plugging them at the wall NEMA 5-20P is available and thank you.

alobodys

[Finksy]

Please be aware!!! There is someone trying to impersonate me: https://bitcointalk.org/index.php?action=trust;u=769932

Please leave neg-rep.  I will get a real price together for you later on this evening alo.

[kaltar]

Pm'ed sent for an order.

i also forgot to ask you if you found a source yet for fans

[Finksy]

A very frustrating and long-awaited dead end for the side panels.  Machinist backed out, I am now actively looking for a sheetmetal fabricator with laser-cutting or water cutting equipment.  PM me if you have any leads in North America.

[generalt]

I just ended up using a bunch of zip ties to strap the fan to the side of the two power supplies.  They shift and wiggle a bit, but as long as I don't touch them or move them around too much they're fine.

[kaltar]

I think Prelude had mentionned to PM him about it.

[Optimizer]

A very frustrating and long-awaited dead end for the side panels.  Machinist backed out, I am now actively looking for a sheetmetal fabricator with laser-cutting or water cutting equipment.  PM me if you have any leads in North America.

I may be able to help.  PM me if you have no one else.

-Optim

[kaltar]

order placed and payment sent

[Finksy]

Just ran out of stock of 24" PCIe cables, more on order.  Lead time probably 2 weeks.

[hawkfish007]

Any luck on the side plates? I need a few ASAP.

Thanks.

[eretron]

Hello,

I am interested in:

The "Triple A Package" - $220
Everything required but fans to power 3x Antminer S7's. EDIT: Newer batches (8+) of S7's draw approx. 1300W DC.  Will be running PSU's @ near 100% load, and will require significant cooling.  Reducing load would be recommended for longevity of PSU's.
 - 1x Standard 4K Breakout Board
 - 2x DPS-2000 PSU's
 - 30x 24" PCIe cables
 - 2x C19-C20 cables


How much are S&H to Serbia?

Thanks

[Finksy]

PM'd, you'd be best ordering through J4bberwock in the EU.  Shipping costs outside North America are just not very reasonable from here.

Side plate plans are with a new machinist (from BitcoinTalk) and I hope to get an update on them soon!