Bladecenter H 2880W Breakout Boards. Selling from stock, limited time discount

[MCHouston]

I'm trying to buy the breakout board, but I don't know where. Please help

Contact Finksy or J4bberwock.

[philipma1957]

Finksy does USA and Canada

J4bberwock does Europe

[Finksy]

The larger fan is a ~4A delta, so I didn't bother trying to connect through the PCB, I fed power directly from a PCIe plug.  With these fans at 100%, it is not much quieter than the stock 3 fans, and again never got around to getting the PWM from the board working.  Maybe J4bberwock can chime in, I know he was working on something himself as well.  In my experience, these PSU's are not good for someone looking for a quiet solution, it is just too much heat to be dissipated in a small case volume, you would need to run less Wattage on these to get away with a quiet fan solution, and that pretty much defeats the purpose of these PSU's to begin with.

Yeah this is what i am afraid of, i am on a closed enviroment, the ambient is about 38celsios up to 40 when the machiens been up for like 3-4 days whit no rest.

I might consider to run dps 2000bb maybe ?.

Prices are about the same of them two psu's but i am looking for the better effience.

I was thinking to maybe cut open the entire top and put 4x 120mm fans at 7 volts , could this take care of the bussines ?


I need to run about 2400 watts, sp20 and C1 , and one coming s3.

Temperature does not seem to be a particularly large factor for these PSU's, they have very effective thermal shut offs before damage appears to take place.  I've had a couple running for nearly a year in a similar ~300 sq ft environment that is almost completely closed off with minimal exhaust for heat.  In the summer months, they would hit thermal shut off sometimes once a day.  In the morning when I get back I power cycle them and they come back on every time.  It's certainly not recommended, but my experience has been that they are very tough when it comes to heat (this is using stock fans)

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans, there shouldn't be a significant difference between models (only the frames for airflow).  Meaning, if you could get away with 4 quiet fans on a DPS2000BB, I can't see why you couldn't get away with the same wattage using the same fans on a IBM 2880W.  And inversely, if those 4 quiet fans can't keep the IBM 2880W cool at 2000W, I don't see how they would fare any better with the DPS 2000BB. That is my opinion anyways.

Noise on the other hand, I am not entirely sure if it will be suitable for you, as I don't know what your expectations are.

[Sweminer777]

The larger fan is a ~4A delta, so I didn't bother trying to connect through the PCB, I fed power directly from a PCIe plug.  With these fans at 100%, it is not much quieter than the stock 3 fans, and again never got around to getting the PWM from the board working.  Maybe J4bberwock can chime in, I know he was working on something himself as well.  In my experience, these PSU's are not good for someone looking for a quiet solution, it is just too much heat to be dissipated in a small case volume, you would need to run less Wattage on these to get away with a quiet fan solution, and that pretty much defeats the purpose of these PSU's to begin with.

Yeah this is what i am afraid of, i am on a closed enviroment, the ambient is about 38celsios up to 40 when the machiens been up for like 3-4 days whit no rest.

I might consider to run dps 2000bb maybe ?.

Prices are about the same of them two psu's but i am looking for the better effience.

I was thinking to maybe cut open the entire top and put 4x 120mm fans at 7 volts , could this take care of the bussines ?


I need to run about 2400 watts, sp20 and C1 , and one coming s3.

Temperature does not seem to be a particularly large factor for these PSU's, they have very effective thermal shut offs before damage appears to take place.  I've had a couple running for nearly a year in a similar ~300 sq ft environment that is almost completely closed off with minimal exhaust for heat.  In the summer months, they would hit thermal shut off sometimes once a day.  In the morning when I get back I power cycle them and they come back on every time.  It's certainly not recommended, but my experience has been that they are very tough when it comes to heat (this is using stock fans)

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans, there shouldn't be a significant difference between models (only the frames for airflow).  Meaning, if you could get away with 4 quiet fans on a DPS2000BB, I can't see why you couldn't get away with the same wattage using the same fans on a IBM 2880W.  And inversely, if those 4 quiet fans can't keep the IBM 2880W cool at 2000W, I don't see how they would fare any better with the DPS 2000BB. That is my opinion anyways.

Noise on the other hand, I am not entirely sure if it will be suitable for you, as I don't know what your expectations are.

Yeah i understand, 2x 80fans is supposed to be silent on the 2000bb, but it is fanless at stock, so as u say i am guessing that 3x on a 2880w should not be a problem, maybe just put a 220mm fan on the top blowing into the case?.

[J4bberwock]

The larger fan is a ~4A delta, so I didn't bother trying to connect through the PCB, I fed power directly from a PCIe plug.  With these fans at 100%, it is not much quieter than the stock 3 fans, and again never got around to getting the PWM from the board working.  Maybe J4bberwock can chime in, I know he was working on something himself as well.  In my experience, these PSU's are not good for someone looking for a quiet solution, it is just too much heat to be dissipated in a small case volume, you would need to run less Wattage on these to get away with a quiet fan solution, and that pretty much defeats the purpose of these PSU's to begin with.

Yeah this is what i am afraid of, i am on a closed enviroment, the ambient is about 38celsios up to 40 when the machiens been up for like 3-4 days whit no rest.

I might consider to run dps 2000bb maybe ?.

Prices are about the same of them two psu's but i am looking for the better effience.

I was thinking to maybe cut open the entire top and put 4x 120mm fans at 7 volts , could this take care of the bussines ?


I need to run about 2400 watts, sp20 and C1 , and one coming s3.

Temperature does not seem to be a particularly large factor for these PSU's, they have very effective thermal shut offs before damage appears to take place.  I've had a couple running for nearly a year in a similar ~300 sq ft environment that is almost completely closed off with minimal exhaust for heat.  In the summer months, they would hit thermal shut off sometimes once a day.  In the morning when I get back I power cycle them and they come back on every time.  It's certainly not recommended, but my experience has been that they are very tough when it comes to heat (this is using stock fans)

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans, there shouldn't be a significant difference between models (only the frames for airflow).  Meaning, if you could get away with 4 quiet fans on a DPS2000BB, I can't see why you couldn't get away with the same wattage using the same fans on a IBM 2880W.  And inversely, if those 4 quiet fans can't keep the IBM 2880W cool at 2000W, I don't see how they would fare any better with the DPS 2000BB. That is my opinion anyways.

Noise on the other hand, I am not entirely sure if it will be suitable for you, as I don't know what your expectations are.

Yeah i understand, 2x 80fans is supposed to be silent on the 2000bb, but it is fanless at stock, so as u say i am guessing that 3x on a 2880w should not be a problem, maybe just put a 220mm fan on the top blowing into the case?.

The DPS2000 BB isn't fanless, the fans are inside the server.
If you don't add fans, it'll switch to overtemperature protection after a few minutes of use.

Regarding the bladecenter H, my best results with fans on top like on Finksy's picture gave something close to stock S3 noise level.

[QuintLeo]

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans

 On a power supply, you're only dissipating the heat caused by lost efficiency, NOT the total capasity of the PS.

 If your 2000 watt PS is 90% efficient, it's only needing to dissipate 200 watts (the "lost" 10%).

[Sweminer777]

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans

 On a power supply, you're only dissipating the heat caused by lost efficiency, NOT the total capasity of the PS.

 If your 2000 watt PS is 90% efficient, it's only needing to dissipate 200 watts (the "lost" 10%).

Yeah exactly and i might be loosing 300w on my psus at 80% efficiency.

So it will be 100w heat less, i think that 60c from 1x psu is better than having heat from 2x 60c.

So i will have the room a bit cooler then.


I think that putting  220m fan on the top and lower the exhaust RPM it migth be even good by just having 1 exhaust runing

[Finksy]

At the end of the day a PSU is a PSU, in that if you are trying to dissipate 2000W of heat with 4 fans

 On a power supply, you're only dissipating the heat caused by lost efficiency, NOT the total capacity of the PS.

 If your 2000 watt PS is 90% efficient, it's only needing to dissipate 200 watts (the "lost" 10%).

I am aware, thank you. I was over-simplifying and referring to 2000W's PSU worth of heat, not the full 2000W of heat (the fact that the PSU doesn't put out even a fraction of the heat that the miners it runs make this very self-evident).  

Larger PSU's = more heat than smaller PSU's, and the difference in heat output between different efficiency levels of the same wattage server PSU's is not going to be all that significant in the framework of choosing fans.  Meaning -as the point of my post was- if you are running 1800W of power through a DPS-2000BB or 1800W of power through the IBM 2880W, if a fan solution works for one it is very likely going to work for the other.

[HerbPean]

Sent you a PM for one.

[Blockhunter]

How long do we need to make the male to male 6pin wires to spoil up a s5+?
To hook up one of these boards?
Thanks in advance.

[notlist3d]

How long do we need to make the male to male 6pin wires to spoil up a s5+?
To hook up one of these boards?
Thanks in advance.

It really would depend on positioning.  It has 3 modules with it.  If you start at one side and go to the last module and go to the 3rd hashing board on it, that is a decent length.

But with watt's are you just going to first 2 modules (6 hashing units within them) and controller unit?   This would be 7 PCI-e cables on that.

[Blockhunter]

How long do we need to make the male to male 6pin wires to spoil up a s5+?
To hook up one of these boards?
Thanks in advance.

It really would depend on positioning.  It has 3 modules with it.  If you start at one side and go to the last module and go to the 3rd hashing board on it, that is a decent length.

But with watt's are you just going to first 2 modules (6 hashing units within them) and controller unit?   This would be 7 PCI-e cables on that.

so I would like to be able to put a 2880 PSU with breakout boards on each side of the S5+ and power should be good enough to spool this thing. I was looking to find it efficiency or Db levels change. Also I want to be ready for the s😄7's
So total 10 male to male PCI-e 6pins total length 24"? 3 for each modules (3)=9+ controller

[notlist3d]

How long do we need to make the male to male 6pin wires to spoil up a s5+?
To hook up one of these boards?
Thanks in advance.

It really would depend on positioning.  It has 3 modules with it.  If you start at one side and go to the last module and go to the 3rd hashing board on it, that is a decent length.

But with watt's are you just going to first 2 modules (6 hashing units within them) and controller unit?   This would be 7 PCI-e cables on that.

so I would like to be able to put a 2880 PSU with breakout boards on each side of the S5+ and power should be good enough to spool this thing. I was looking to find it efficiency or Db levels change. Also I want to be ready for the s😄7's
So total 10 male to male PCI-e 6pins total length 24"? 3 for each modules (3)=9+ controller

Two of these is really a over kill though.  One of these to power 2 modules and one controller.  And I would use a smaller one to power last module.  But I would agree one on each side off miner if you are able to do it in your setup.

Tomorrow is a little busy not sure if I can get out there with something to measure or not.   I can tell you if you can find length of bitmain PSU it worked fine.   I used 3 of them.  Have 2 on one side and one on the other. So that is another way to get measurements that might be quicker.

[Blockhunter]

How long do we need to make the male to male 6pin wires to spoil up a s5+?
To hook up one of these boards?
Thanks in advance.

It really would depend on positioning.  It has 3 modules with it.  If you start at one side and go to the last module and go to the 3rd hashing board on it, that is a decent length.

But with watt's are you just going to first 2 modules (6 hashing units within them) and controller unit?   This would be 7 PCI-e cables on that.

so I would like to be able to put a 2880 PSU with breakout boards on each side of the S5+ and power should be good enough to spool this thing. I was looking to find it efficiency or Db levels change. Also I want to be ready for the s😄7's
So total 10 male to male PCI-e 6pins total length 24"? 3 for each modules (3)=9+ controller

Two of these is really a over kill though.  One of these to power 2 modules and one controller.  And I would use a smaller one to power last module.  But I would agree one on each side off miner if you are able to do it in your setup.

Tomorrow is a little busy not sure if I can get out there with something to measure or not.   I can tell you if you can find length of bitmain PSU it worked fine.   I used 3 of them.  Have 2 on one side and one on the other. So that is another way to get measurements that might be quicker.

thanks I really appreciate it.

[dmwardjr]

There is no image for this but the datasheet (linked from that page and also here seems to fit the connector (see extracted image from datasheet) - MOQ 264 unit @ 4.39186 = 1,159.45 GBP (expected 20/02/2015 as of today)

I liked this data sheet and wanted to make sure it remains.  So, I quoted it.

By the way, does anyone have a specification sheet on efficiency for the IBM 2880?

[dmwardjr]

Here are some pics of how we made the harness. My buddy owns a cable manufacturing company and even using $120,000 of equipment, the time and effort was not worth it. I only made these because of the delivery time to get J4bberwock boards for the first 52 Antminer S5's. I highly recommend not even consider doing harnesses and just buy the boards.

The equipment we used  to do this project was an auto feed wire cutting and stripping machine that did all the 10 gauge black and reds. Then we used  an automatic stripping machine to get .6" on the pre-made PCIE wires we got from klondike_bar. An ultrasonic welder was use to join the wires. Had to use a 150 watt soldering iron to join the welded pads to the power supply.

There is also a shot of the power meter when the room was hot and the fans were at max, it was drawing 3785 watts.

https://i.imgur.com/CFaH9p7l.jpg
https://i.imgur.com/dF4tHgdl.jpg
https://i.imgur.com/hYmu76ol.jpg
https://i.imgur.com/p5snliql.jpg

Soab,

What did you end up doing for a power switch, if anything?

I believe I prefer the breakout board.

[gregxploit]

If anyone from the initial group buy in North America has any problems with any of their boards, I would be happy to have replacements sent out immediately on behalf of J4bberwock.  Send me and J4bberwock a PM if you have any defects at all and we'll get you sorted out.

I live in the USA but I bought mine straight from J4bberwock.  I bought 8 of them and 4 of them turn on the PSU but do not turn on the fan.  I'm going to tear away the white glue stuff and make the following solder connections myself...

https://i.imgur.com/qiFVfJB.jpg

If this voids any type of warranty on them doing it myself, please let me know.  I've made thousands of solder connections.  I know what I'm doing.  For example, I engineered, designed and built these training boards to teach telephone technicians how to use their meter to identify and locate troubles.  The training boards have 192 solder connections each and the master board that connects them all together has well over 200 solder connections.  The entire setup has 6 training boards, one master board, 3 bride tap boards and one power supply.  I've made 6 sets up these training boards.  Each set has a total of 11 cases.  So, a total of 66 cases.

Picture of one of six training boards below.  Each board has the same resistance as 19,700 feet of 24 AWG wire and each board has the same capacitance as 19,700 feet of Air Core Cable [Not Jelly Core].  1,700 feet of the 19,700 feet is actual real wire.  I needed real wire for when I teach them how to use a Time Domain Reflectometer (TDR).

https://i.imgur.com/9EWBojf.jpg

Picture of 3 of the 6 training boards, power supply, 3 bridge tap boards and one master board.

https://i.imgur.com/asSxe8l.jpg

This is a picture of a class I taught in Leesburg, Florida.  I did a total of 22 classes in Leesburg with 12 technicians in each 4-Day class.  You see the 6 training boards connected to the black master board in this picture.  The power supply and 3 bridge tap boards are underneath the table.  I teach them how to use their JDSU HST 3000 to identify and locate troubles over a 4-Day period.  I wish I had them 2 weeks but I'm forced to teach them what I can in a 4-Day period.

https://i.imgur.com/8Ay71uQ.jpg

You managed to turn the fancoolers without break board?

I can indicate that I tap pin to light source 2880

[ShrykeZ]

Any chance you could check your PMs J4bberwock, really interested in purchasing the breakout boards.

[Mr.paul]

Hi j4bberwock .. do you have 2880w psu with board ?
and can be shipping to malaysia?

[toptek]

I'm trying to buy the breakout board, but I don't know where. Please help

if you can't catch then try this site if you live in the US !!!


he sells the same boards , some you may have to ask for, he may not have listed.

http://holybitcoin.com/