IBM 2880W PSU/Breakout Boards - *NEW* Package deals for T9/S9 & A7

[ZeroKool]

Great Mod and fantastic Power supply.
Here is how I have mine deployed.
First Rig 3 Antminer C1's, Second Rig 8 S3's, and the third rig is powering 2 S2's + 2 S3's.
Loud Yes but I'm working on a fix for that.
Recycle-Reuse-Repurpose and mine away!

[Finksy]

Thanks Zero

All PM's should have been replied to now.  Back in the swing of things, orders shipping out today.

[edonkey]

The original post indicates that these require 240 volts. But the label indicates 200 - 240v.

So these will work on 208 volts, right? That's a pretty common data center voltage option.

[padrino]

The original post indicates that these require 240 volts. But the label indicates 200 - 240v.

So these will work on 208 volts, right? That's a pretty common data center voltage option.

Yes they will work fine, I have run a pile of them like that..

[supercomputer987]

Finksy,
I PM'd you for an order.

[edonkey]

Can someone tell me the physical dimensions of this power supply?

Edit: Finksy answered me via PM. The approximate physical dimensions with board attached are ~23" x 10" x 3".

Edit: Also, does it really weigh 45 pounds?
Answering my own question, no, it's only 15 pounds. I just missed that in the original post. In his PM, Finksy said they're approximately 14 pounds.

I've made a few attempts to search for this info, but most of the hits are people selling them.

Thanks in advance.

[Sweminer777]

can i purchase 1 from sweden?

[Finksy]

can i purchase 1 from sweden?

Contact J4bberwock, he's in EU and can sell to Sweden:  https://bitcointalk.org/index.php?action=profile;u=206446

Can someone tell me the physical dimensions of this power supply?

Edit: Finksy answered me via PM. The approximate physical dimensions with board attached are ~23" x 10" x 3".

Edit: Also, does it really weigh 45 pounds?
Answering my own question, no, it's only 15 pounds. I just missed that in the original post. In his PM, Finksy said they're approximately 14 pounds.

I've made a few attempts to search for this info, but most of the hits are people selling them.

Thanks in advance.

Just to update, the actual dimensions are 19"x 8" x 2.5" (17" length w/out board attached), and weigh around 5kg w/ fan packs (11Lbs). I was a little over-zealous with my estimations that night :/

[kaltar]

Hey Finsky

Do you still have some PSU and board in stock. ?

IF so, PM me a Quote for
1 PSU
1 Breakout Board
24 x 36" inch wires
1 c19 Cable

You should still have my coordonates from my previous orders


Kaltar

[edonkey]

I'm trying to figure out how I would deploy these in my rack, hopefully reusing some of the shelves.

Is it ok to stack two of these PSUs? Seems like that should be fine if the cases don't get very warm.

Which end is the hot end and which is the cold? If these were originally plugged into server cases with the fans on the front, then maybe the fans pull cold air in rather than exhaust warm air out.

[padrino]

I'm trying to figure out how I would deploy these in my rack, hopefully reusing some of the shelves.

Is it ok to stack two of these PSUs? Seems like that should be fine if the cases don't get very warm.

Which end is the hot end and which is the cold? If these were originally plugged into server cases with the fans on the front, then maybe the fans pull cold air in rather than exhaust warm air out.

I've run them stacked but stopped since the hot end was getting a bit too hot for my liking due to one side being restricted.

The cold end is the end with the fan pack.

[edonkey]

I'm trying to figure out how I would deploy these in my rack, hopefully reusing some of the shelves.

Is it ok to stack two of these PSUs? Seems like that should be fine if the cases don't get very warm.

Which end is the hot end and which is the cold? If these were originally plugged into server cases with the fans on the front, then maybe the fans pull cold air in rather than exhaust warm air out.

I've run them stacked but stopped since the hot end was getting a bit too hot for my liking due to one side being restricted.

The cold end is the end with the fan pack.

Thanks for the info. It helps me plan. I don't have the PSUs in hand yet.

When you says that the hot end was too hot due to restriction, was that an air flow problem your particular installation? Or maybe you're referring to the breakout board restricting the exhaust?

In my case these would be at a data center, so the input air will be pretty cold (about 21 degrees C). So maybe I'll be OK stacking them. I can double check with an infrared thermometer.

[Finksy]

In my experience running 2 stacked PSU's was fine, so long as the hot end (break-out board side) isn't restricted on the bottom.  I.E. if you are running on a solid flat shelf/rack, the breakout board over-extends the edge to limit exhaust restriction.  Also, these PSU's come with a very good thermal shut-off, which I have had some PSU's hit on a nearly daily basis at certain times in the summer with lack of ventilation/AC. They come back online every time without a problem (50+ times), so running them hot IME is not a problem, they shut off before any major damage is typically done.  How hot you want to let the breakout boards get (in a multiple PSU-stacked configuration) on the other hand is another question, since the exhaust air can get to 100+ degrees.

Kaltar, I am currently out of stock on boards, and am in the process of working with J4bberwock to shift some of the board production here to Canada to save on time, VAT and shipping expenses.  I'm looking at about a 2-3 week down-time, but when I am setup with the materials here on hand, I should be able to reduce the cost of the boards as well as keep more stock.  I will keep this thread updated!

[edonkey]

In my experience running 2 stacked PSU's was fine, so long as the hot end (break-out board side) isn't restricted on the bottom.  I.E. if you are running on a solid flat shelf/rack, the breakout board over-extends the edge to limit exhaust restriction.  Also, these PSU's come with a very good thermal shut-off, which I have had some PSU's hit on a nearly daily basis at certain times in the summer with lack of ventilation/AC. They come back online every time without a problem (50+ times), so running them hot IME is not a problem, they shut off before any major damage is typically done.  How hot you want to let the breakout boards get (in a multiple PSU-stacked configuration) on the other hand is another question, since the exhaust air can get to 100+ degrees.

That is great practical info! Thanks for the additional details.

In my case, I'm planning on reusing a beefy partial shelf that held a RAID array that we no longer use. It can handle at least 30 pounds, and is only about 14" deep, so two stacked 2880 PSUs will comfortably hang over the edge with the breakout board side in mid air without obstruction.

Sounds like this will work great. Thanks again for the useful details.

[HerbPean]

I want 1 Breaking board + 20 cables (standard version).

Let me know when you have some in stock.

[metalcrypto]

Hi Finsky,

Can I please order:
2x PSU
2x Board
32x 24" standard 16 AWG cables

Thank you.

[Finksy]

UPDATE:

Finally, I have received most of the components and started soldering and assembling boards.  I am still missing many of the nylon spacers, but once they arrive I will have boards ready for shipment.  I have gone back through my PM's to notify anyone, if I missed anyone or anyone else is interested in a quote please PM me. I will be accepting orders, and they will ship out in the order they are paid for. I'll be producing around 40 per week, so it will still take some time to fill all the orders.  I hope to have all orders shipped out before the S7's ship.  Thank you everyone for your patience.

[jaaudio]

Finksy, I'd like to order the 2880W breakout boards.  I've tried to PM but since I'm a nube, features are blocked.  How do I proceed?

-JAAUDIO

[Finksy]

All my orders are handled by PM.  I will send you one with some information.

Still waiting on the board spacers to finish assembly, I think they hired someone to swim them across the ocean 

[CrypR]

Any luck receiving the spacers?  The S7's started shipping today.