Gauging interest in a S5+ / 3xS7 specific power supply breakout board

[J4bberwock]

Is shipping to US included, or is it extra? I would like to buy 2 boards but wanted to be sure about shipping.

shipping is on top and not so cheap to US
maybe they will get available at the US distributor ?
mentioned here https://bitcointalk.org/index.php?topic=738527.0

actually it is not listed and the single version is also sold out:
http://holybitcoin.com/product/dps-2000bb-breakout-adapter-board/

Finksy will manufacture them for North America market starting in a few weeks. Same as he is already doing for the bladecenter 2880w boards.
Shipping from me for 2 boards to the US will be something like $35.

Holybitcoin will receive a batch of more standard boards including some single DPS-2000BB by the end of this week.

[fhh]

Yes I meant the revisions
Mixed 7 with 8s -> only the rev 7 had power draw: 2.5KW
The 8s was ideling @ 30 watt measured with Fritz! DECT200

2x 8s working perfect

[philipma1957]

hey what is power swing volt wise?

the avalon 6's could be a better fit with this the the s-7's   or are you only 12 volts and higher?

[J4bberwock]

hey what is power swing volt wise?

the avalon 6's could be a better fit with this the the s-7's   or are you only 12 volts and higher?

I've been quite busy at home for the past week, will update infos and pics soon.

Those particular PSUs are limited to 11.2v on the undervolt side, 13.5v on the overvolt side.
Revision S9 or lower will only need to adjust an internal trim pot before it's able to reach down 11.2v and go up 13.0v.
Without this adjustment, you'll only reach 11.6v and will be able to go up to 13.5v

Revisions S10 and higher will need one missing connection to be added on one board in the PSU.

[yslyung]

hey j4b,

2 of my 2000bb has only AC lights, no DC. before it was ok then now no more DC green LED light upfront. the breakout boards are working fine on other 2000bb's.

i can also hear a relay clicking sound.

any tips will be appreciated.

i need 1 2880W breakout board sent to me.

sorry not really related though but you are the guru of 2000bb + 2880W psu's & the breakout boards master !

pls do pm me when you are free.

[philipma1957]

are these correct psu's


http://www.ebay.com/itm/252144440397?

[fhh]

are these correct psu's


http://www.ebay.com/itm/252144440397?

yes
good price <- edit: seems to be normal for US

[Prelude]

Is your breakout board able to handle 5000w if DPS-2500BB are used instead of DPS-2000BB?

[J4bberwock]

are these correct psu's


http://www.ebay.com/itm/252144440397?

If you want to easily have the voltage adjust working, ask them if they can ship you revision number lower than S9M.

If they can't, you could use some zero ohm resistors to mod according to my pictures a few posts ago. I used pins salvaged from dead DPS2000 PSUs on mine.
Those resistors should do the job if the leg diameter isn't too big (looks ok on the picture, and some people used actual cut legs from resistors soldered together to replace the pins):
Ebay item 201428019892
Ebay item 121097959648

Just to be safe, I'd put them in some heat shrink tube in case the actual resistor body could touch another pin.

If you don't have an hot air station and a solder sucker, you can even carefully drill with a 0.7-0.8mm drill bit in the center of the solder pad that is missing the pin.

Total length of the pins is 42mm. I haven't been able to source them from regular sources like digikey/mouser...
Will try from my main connectors supplier.

[J4bberwock]

Is your breakout board able to handle 5000w if DPS-2500BB are used instead of DPS-2000BB?

The board have more than enough copper thickness and layers to handle 5kw.
But it seems external voltage adjust doesn't work on the 2500BB. I still need to try on the ones I have.

[philipma1957]

are these correct psu's


http://www.ebay.com/itm/252144440397?

If you want to easily have the voltage adjust working, ask them if they can ship you revision number lower than S9M.

If they can't, you could use some zero ohm resistors to mod according to my pictures a few posts ago. I used pins salvaged from dead DPS2000 PSUs on mine.
Those resistors should do the job if the leg diameter isn't too big (looks ok on the picture, and some people used actual cut legs from resistors soldered together to replace the pins):
Ebay item 201428019892
Ebay item 121097959648

Just to be safe, I'd put them in some heat shrink tube in case the actual resistor body could touch another pin.

If you don't have an hot air station and a solder sucker, you can even carefully drill with a 0.7-0.8mm drill bit in the center of the solder pad that is missing the pin.

Total length of the pins is 42mm. I haven't been able to source them from regular sources like digikey/mouser...
Will try from my main connectors supplier.

they read s7.

  I have your 2x board on hand  I will post assembly > when all pieces come on hand.

[dmwardjr]

J4bberwock,

Its been a while since I've read this forum.  What I'm about to ask may have already been asked:

Do you have anything in the works for something similar but with IBM 2880W PSU's?  It might be worth coming up with something to control the voltage on the 2880 and have a digital meter for it's output voltage.

I have a little over 20 x IBM 2880's at my disposal with your breakout boards.  I may invest in your setup for this present design in the future [Once all of my 2880's are in use].

[J4bberwock]

J4bberwock,

Its been a while since I've read this forum.  What I'm about to ask may have already been asked:

Do you have anything in the works for something similar but with IBM 2880W PSU's?  It might be worth coming up with something to control the voltage on the 2880 and have a digital meter for it's output voltage.

I have a little over 20 x IBM 2880's at my disposal with your breakout boards.  I may invest in your setup for this present design in the future [Once all of my 2880's are in use].

Hi, I've probed the 2880w PSU for voltage control pins, and it's not easy to move it from 12v. I still need to try one easy trick just in case it'd work.

The only practical way someone found until now is to use an arduino to reprogram on the fly the internal ROM of the PSU to allow different voltage outputs.

http://www.rcgroups.com/forums/showpost.php?p=30428005&postcount=2972

The same thing can probably be done to output lower voltages, but it's a bit overkill just to allow us to go from 11v to 13v

[dmwardjr]

J4bberwock,

Its been a while since I've read this forum.  What I'm about to ask may have already been asked:

Do you have anything in the works for something similar but with IBM 2880W PSU's?  It might be worth coming up with something to control the voltage on the 2880 and have a digital meter for it's output voltage.

I have a little over 20 x IBM 2880's at my disposal with your breakout boards.  I may invest in your setup for this present design in the future [Once all of my 2880's are in use].

Hi, I've probed the 2880w PSU for voltage control pins, and it's not easy to move it from 12v. I still need to try one easy trick just in case it'd work.

The only practical way someone found until now is to use an arduino to reprogram on the fly the internal ROM of the PSU to allow different voltage outputs.

http://www.rcgroups.com/forums/showpost.php?p=30428005&postcount=2972

The same thing can probably be done to output lower voltages, but it's a bit overkill just to allow us to go from 11v to 13v

Okay,

Thanks for the reply, Sir.

EDIT:  After reading the link, I must agree...  It's overkill.

[toptek]

Hey Dwardjr i have a few of J4bberworks break out boards best thng going right now i like how we can plug into PCEI plug to plug . . just bought one of his 2000 blade center boards, not this one, they are very nice. .

[dmwardjr]

Hey Dwardjr i have a few of J4bberworks break out boards best thng going right now i like how we can plug into PCEI plug to plug . . just bought one of his 2000 blade center boards, not this one, they are very nice. .

Agreed.

J4bberwocks HW is the shiznit!

[FlensGold]

Is there anyone powering 3 S7 with this? Which fan do you use / recommend for cooling the PSUs?

[Prelude]

Is there anyone powering 3 S7 with this? Which fan do you use / recommend for cooling the PSUs?

I am. My own contraption, but the same end result as j4bber's breakout board. His solution is just much more elegant. I'm using 2 Delta fans, approximately 150CFM each. Could get by with lesser fans, but I had these on hand so why not.

[dmwardjr]

Is there anyone powering 3 S7 with this? Which fan do you use / recommend for cooling the PSUs?

I am. My own contraption, but the same end result as j4bber's breakout board. His solution is just much more elegant. I'm using 2 Delta fans, approximately 150CFM each. Could get by with lesser fans, but I had these on hand so why not.

Sometimes, PDU's come into play.  For instance, my 30 amp PDU's have two 15 amp legs.  15 amps x 220 volts = 3,300 watts.  6,600 watts maximum with both 15 amp legs combined.

I'm presently using IBM 2880 PSU's to power 2 x S7's on each PSU.  1220 watts x 2 = 2440 watts.  I might use 2 x IBM 2880's and 1 x Corsair AX 860 on one 30 amp PDU to power 5 x S7's instead of using only 1 x IBM 2880 alone on each 15 amp leg of the 30 amp PDU.  However, more than likely, I will end up powering only 4 x S7's with 2 x IBM 2880's for each 30 amp PDU to remain well within the 75% allowed for each circuit.

I may probably go with this new setup J4bberwock has come up with once all of my IBM's are in use [22 x total IBM 2880's].  I would have the option to power 5 x S7's comfortably on one 30 amp PDU with 2 of these new setups of J4bberwock's [One for each 15 amp leg on the 30 amp switched PDU's].

[Prelude]

Is there anyone powering 3 S7 with this? Which fan do you use / recommend for cooling the PSUs?

I am. My own contraption, but the same end result as j4bber's breakout board. His solution is just much more elegant. I'm using 2 Delta fans, approximately 150CFM each. Could get by with lesser fans, but I had these on hand so why not.

Sometimes, PDU's come into play.  For instance, my 30 amp PDU's have two 15 amp legs.  15 amps x 220 volts = 3,300 watts.  6,600 watts maximum with both 15 amp legs combined.

I'm presently using IBM 2880 PSU's to power 2 x S7's on each PSU.  1220 watts x 2 = 2440 watts.  I might use 2 x IBM 2880's and 1 x Corsair AX 860 on one 30 amp PDU to power 5 x S7's instead of using only 1 x IBM 2880 alone on each 15 amp leg of the 30 amp PDU.  However, more than likely, I will end up powering only 4 x S7's with 2 x IBM 2880's for each 30 amp PDU to remain well within the 75% allowed for each circuit.

I may probably go with this new setup J4bberwock has come up with once all of my IBM's are in use [22 x total IBM 2880's].  I would have the option to power 5 x S7's comfortably on one 30 amp PDU with 2 of these new setups of J4bberwock's [One for each 15 amp leg on the 30 amp switched PDU's].

Man, I can't even imagine the noise 22 of those would make.

Why are you only getting 220V from your service? Should be 240V. Mention that when the engineer comes by, he'll send a team of linesmen to increase voltage on the transformer in the pole. They bumped mine up after I complained about having only 227V with my heavy load.