2000W Power Breakout Board (DPS2000BB to PC-Ie x12) - page 4.

Optimizer

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Quote from: E on June 24, 2016, 02:18:40 PM

208V vs 240V efficiency numbers aren't commonly published, but the difference is likely to be less than 0.5% or so.

For example, an unspecified HP PSU measured in 2007:

BTW I'm making my measurements with a calibrated Xitron 2503AH (http://www.xitrontech.com/products/general-purpose-power-analyzers/#2503ah) with an external 500A precision shunt for the DC current.
[/quote]

Nice. I am jealous! We may rely on your for accuracy.

Let me know what numbers you find.

@Philipma, be careful when testing to 2500. I have not tested these boards beyond 2kW for an extended period of time. It should be safe, but try not to exceed 130C anywhere on the board.

-Optim

E

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Quote from: Optimizer on June 24, 2016, 03:20:22 PM

Quote from: E on June 24, 2016, 02:18:40 PM

I wanted to add some DPS-2000BB efficiency numbers to this thread, as I've recently been measuring DC and AC draw on my S9 at various clock speeds.

Counting 12V cable losses, I'm seeing 88.3 to 88.7% efficiency everywhere from 800W up to 1400W DC. Ignoring cable losses the efficiency is 89.7 to 90%.

This is all at a 208V input voltage... efficiency should be higher with higher input voltage but I haven't been able to test that yet.

Higher input voltage, implies lower input current (Usually). If your losses are dominated by I^2 * R, then it will help.

208V vs 240V efficiency numbers aren't commonly published, but the difference is likely to be less than 0.5% or so.

For example, an unspecified HP PSU measured in 2007:

BTW I'm making my measurements with a calibrated Xitron 2503AH (http://www.xitrontech.com/products/general-purpose-power-analyzers/#2503ah) with an external 500A precision shunt for the DC current; the Xitron is good to better than 0.05% on the internal I/V measurements but the shunt is only spec'd to 0.1% so that dominates the error.

One cool thing you can observe with this is how current draw from a miner increases by 10s of watts as everything warms up to operating temperature. I'll try to get a video of that because it is pretty interesting to watch!

Optimizer

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Quote from: E on June 24, 2016, 02:18:40 PM

I wanted to add some DPS-2000BB efficiency numbers to this thread, as I've recently been measuring DC and AC draw on my S9 at various clock speeds.

Counting 12V cable losses, I'm seeing 88.3 to 88.7% efficiency everywhere from 800W up to 1400W DC. Ignoring cable losses the efficiency is 89.7 to 90%.

This is all at a 208V input voltage... efficiency should be higher with higher input voltage but I haven't been able to test that yet.

Higher input voltage, implies lower input current (Usually). If your losses are dominated by I^2 * R, then it will help.

Philipma,

Let me know how it goes. I don't have the best power analyzer set up. It would be good to know.

-Optim

philipma1957

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Quote from: E on June 24, 2016, 02:18:40 PM

I wanted to add some DPS-2000BB efficiency numbers to this thread, as I've recently been measuring DC and AC draw on my S9 at various clock speeds.

Counting 12V cable losses, I'm seeing 88.3 to 88.7% efficiency everywhere from 800W up to 1400W DC. Ignoring cable losses the efficiency is 89.7 to 90%.

This is all at a 208V input voltage... efficiency should be higher with higher input voltage but I haven't been able to test that yet.

so far I am getting good numbers with his board on the dps-1600 psu.

I am waiting for the second board and the dps-2500 psu

The goal will be to run them on my pdu that has an amp meter.

right now I am running his one board with the dps-1600 psu and running an evga 1600 p2 the two are driving a pair of s-9's batch 2 set to freq 600

the pdu reads 10 amps and bounces to 11 amps rarely which would mean 2400 to 2640 watts for about 25.0-26.0th
so far so good.

E

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Activity: 234

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I wanted to add some DPS-2000BB efficiency numbers to this thread, as I've recently been measuring DC and AC draw on my S9 at various clock speeds.

Counting 12V cable losses, I'm seeing 88.3 to 88.7% efficiency everywhere from 800W up to 1400W DC. Ignoring cable losses the efficiency is 89.7 to 90%.

This is all at a 208V input voltage... efficiency should be higher with higher input voltage but I haven't been able to test that yet.

philipma1957

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Quote from: Optimizer on June 23, 2016, 02:16:59 PM

See my reply! I am still here. Contract manufacturing has cost me quite a bit of time.

I will put up in a new post in the "For sale" thread shortly.

-Optim

thank you just got the email from you.

I will post detailed thread on this board vs the dual board from j4bberwock.

I have 1 of your boards the second one will allow for tests of the dps-1600 and the dps-2500 psus

http://www.esaitech.com/delta-electronics-dps-1600bb-1800-watts-power-supply.html

http://www.itcreations.com/view_product.asp?product_id=38186

along with the dps-2000 psu

Optimizer

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See my reply! I am still here. Contract manufacturing has cost me quite a bit of time.

I will put up in a new post in the "For sale" thread shortly.

-Optim

philipma1957

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dragged this up as i could use a 2000 watt breakout board and some pcie cables.

I have one of your 2000 watt boards and it works well.

I did send you an ibm 2880 osu and a breakout board on my dime.

I wondered if you could pm me a coupon to buy a 2000 watt board and 10 pcie six pin to six connectors.

I would then place an order for the gear. thanks phil

note: I emailed your website please reply.

philipma1957

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Quote from: Optimizer on April 19, 2016, 07:15:12 PM

Quote from: toptek on April 19, 2016, 03:58:45 PM

Quote from: eugesha on April 19, 2016, 05:02:15 AM

hi,
do you have any news about DPS-1200FB common slot breakout boards development ?

if he doesn't yet sidehack is starting sells for his version here https://bitcointalksearch.org/topic/dual-purpose-dps800dps1200-breakout-board-1442707

btw if i what read is true the idea and first boards came from side but i would buy both sides and Opt boards over any one else that sells them i have bought from both sellers and there stuff is good.

Hey you two,

I have been dug into a few contracts, but I have not forgotten. I have some functional 4k prototypes that I can now produce to whoever need. The DPS1200/800 boards are designed, but I am having issues sourcing connectors (10053363-200LF). As soon as I am able to readily source those parts or any variants I can push forward on producing these little guys.

I also have completed a design for the 2880 variants, but sourcing these connectors is also proving problematic (the 3 pin connector in right angle variants). As soon as I hear back from contacts in China I will let you know.

If anyone knows of a source or substitute I can tack on these boards, you would help streamline the production of these boards. Any help is appreciated.

I have just received a shipment of 1k PCI-e cables if you are interested. I saw that other vendors were running low so I stocked up.

PM me for details or if you have any questions. And always check the website for updates. They will be coming very soon.

www.controlteam.com - and E-mail [email protected] if you have any special requests since many of the buttons aren't up yet.

-Optim

I am hoping you do find something for the 2880 boards as I have three idle 2980 psus. That would fully allow me to run all my Avalon 6s at platinum level.

Side hack s Breakout board for the hp 1200 and 800 is pretty good I am doing a head to head test with it and a 1200 watt 250 usd gold psu.

I suppose I could use 1 double board 2000 = 4000 watt psu.

Optimizer

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Activity: 111

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Quote from: toptek on April 19, 2016, 03:58:45 PM

Quote from: eugesha on April 19, 2016, 05:02:15 AM

hi,
do you have any news about DPS-1200FB common slot breakout boards development ?

if he doesn't yet sidehack is starting sells for his version here https://bitcointalksearch.org/topic/dual-purpose-dps800dps1200-breakout-board-1442707

btw if i what read is true the idea and first boards came from side but i would buy both sides and Opt boards over any one else that sells them i have bought from both sellers and there stuff is good.

Hey you two,

I have been dug into a few contracts, but I have not forgotten. I have some functional 4k prototypes that I can now produce to whoever need. The DPS1200/800 boards are designed, but I am having issues sourcing connectors (10053363-200LF). As soon as I am able to readily source those parts or any variants I can push forward on producing these little guys.

I also have completed a design for the 2880 variants, but sourcing these connectors is also proving problematic (the 3 pin connector in right angle variants). As soon as I hear back from contacts in China I will let you know.

If anyone knows of a source or substitute I can tack on these boards, you would help streamline the production of these boards. Any help is appreciated.

I have just received a shipment of 1k PCI-e cables if you are interested. I saw that other vendors were running low so I stocked up.

PM me for details or if you have any questions. And always check the website for updates. They will be coming very soon.

www.price-technology.com - Go to Contact Us if you have any requests.

-Optim

toptek

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Quote from: eugesha on April 19, 2016, 05:02:15 AM

hi,
do you have any news about DPS-1200FB common slot breakout boards development ?

if he doesn't yet sidehack is starting sells for his version here https://bitcointalksearch.org/topic/dual-purpose-dps800dps1200-breakout-board-1442707

btw if i what read is true the idea and first boards came from side but i would buy both sides and Opt boards over any one else that sells them i have bought from both sellers and there stuff is good.

eugesha

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hi,
do you have any news about DPS-1200FB common slot breakout boards development ?

philipma1957

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'The right to privacy matters'

Optimizer

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philipma1957

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judypug1956

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Phil did you get better results with you y-cable idea?

philipma1957

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Quote from: Optimizer on March 23, 2016, 01:04:14 AM

Quote from: philipma1957 on March 22, 2016, 11:08:32 PM

Quote from: Optimizer on March 22, 2016, 10:43:49 PM

Quote from: philipma1957 on March 22, 2016, 10:30:29 PM

Quote from: sidehack on March 22, 2016, 09:24:32 PM

By the way, I just built your cables. Hopefully they do the trick, and should be in the mail tomorrow.

yeah I am going to use them and try to see what happens to the 2980 I am running.

I am also going to test one of these 2000w boards as someone was kind enough to send me one.

Interesting. I have a stock of 1k cable coming in from some partners in China. Was going to test the waters on the website/Amazon. I am doing 2 footers with 6 pinners on each end.

By the way, who sent you a board!? Silent knight I suppose.

-Optim

well I am stuck with the 2880/2980 gear

so they have 20 jacks so if I run 2 avalon 6's the y cable allows 16 jacks to go to 8 jacks. pulling 2200 watts ac.

so 2200/16 = 137.50 watts at each 2880/2980 breakout board jack used.

now it is 2200/8 = 275 watts at each 2880/2980 breakout board jack used.

got to be safer ½ the load on each jack.

if I did not have all the 2980 psu's and the boards switching would be easier. (about 700 usd)

but after testing the 2980's they are true platinum.

and the 2000 watt hps are not plat most likely they are silver.

I am passing on the donator question. But it will be nice to test your gear.

The offer stands if you want to play with the 2880 psu (same pinout as the 2980)

I'm interested, though you should be more concerned with the current at each pin. With the limitations in layout, I would not exceed 15A per PCI-e connector and even that is pushing it at the board to connector interfacing.

-Optim

I got your pm.
I am busy today,

but i am going to the solar array on thurs or friday I will pick up the 2880 and ship it with the break out board on sat.

Optimizer

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Activity: 111

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Quote from: philipma1957 on March 22, 2016, 11:08:32 PM

Quote from: Optimizer on March 22, 2016, 10:43:49 PM

Quote from: philipma1957 on March 22, 2016, 10:30:29 PM

Quote from: sidehack on March 22, 2016, 09:24:32 PM

By the way, I just built your cables. Hopefully they do the trick, and should be in the mail tomorrow.

yeah I am going to use them and try to see what happens to the 2980 I am running.

I am also going to test one of these 2000w boards as someone was kind enough to send me one.

Interesting. I have a stock of 1k cable coming in from some partners in China. Was going to test the waters on the website/Amazon. I am doing 2 footers with 6 pinners on each end.

By the way, who sent you a board!? Silent knight I suppose.

-Optim

well I am stuck with the 2880/2980 gear

so they have 20 jacks so if I run 2 avalon 6's the y cable allows 16 jacks to go to 8 jacks. pulling 2200 watts ac.

so 2200/16 = 137.50 watts at each 2880/2980 breakout board jack used.

now it is 2200/8 = 275 watts at each 2880/2980 breakout board jack used.

got to be safer ½ the load on each jack.

if I did not have all the 2980 psu's and the boards switching would be easier. (about 700 usd)

but after testing the 2980's they are true platinum.

and the 2000 watt hps are not plat most likely they are silver.

I am passing on the donator question. But it will be nice to test your gear.

The offer stands if you want to play with the 2880 psu (same pinout as the 2980)

I'm interested, though you should be more concerned with the current at each pin. With the limitations in layout, I would not exceed 15A per PCI-e connector and even that is pushing it at the board to connector interfacing.

-Optim

philipma1957

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Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: Optimizer on March 22, 2016, 10:43:49 PM

Quote from: philipma1957 on March 22, 2016, 10:30:29 PM

Quote from: sidehack on March 22, 2016, 09:24:32 PM

By the way, I just built your cables. Hopefully they do the trick, and should be in the mail tomorrow.

yeah I am going to use them and try to see what happens to the 2980 I am running.

I am also going to test one of these 2000w boards as someone was kind enough to send me one.

Interesting. I have a stock of 1k cable coming in from some partners in China. Was going to test the waters on the website/Amazon. I am doing 2 footers with 6 pinners on each end.

By the way, who sent you a board!? Silent knight I suppose.

-Optim

well I am stuck with the 2880/2980 gear

so they have 20 jacks so if I run 2 avalon 6's the y cable allows 16 jacks to go to 8 jacks. pulling 2200 watts ac.

so 2200/16 = 137.50 watts at each 2880/2980 breakout board jack used.

now it is 2200/8 = 275 watts at each 2880/2980 breakout board jack used.

got to be safer ½ the load on each jack.

if I did not have all the 2980 psu's and the boards switching would be easier. (about 700 usd)

but after testing the 2980's they are true platinum.

and the 2000 watt hps are not plat most likely they are silver.

I am passing on the donator question. But it will be nice to test your gear.

The offer stands if you want to play with the 2880 psu (same pinout as the 2980)

Optimizer

member

Activity: 111

Merit: 10

Quote from: philipma1957 on March 22, 2016, 10:30:29 PM

Quote from: sidehack on March 22, 2016, 09:24:32 PM

By the way, I just built your cables. Hopefully they do the trick, and should be in the mail tomorrow.

yeah I am going to use them and try to see what happens to the 2980 I am running.

I am also going to test one of these 2000w boards as someone was kind enough to send me one.

Interesting. I have a stock of 1k cable coming in from some partners in China. Was going to test the waters on the website/Amazon. I am doing 2 footers with 6 pinners on each end.

By the way, who sent you a board!? Silent knight I suppose.

-Optim

Topic: 2000W Power Breakout Board (DPS2000BB to PC-Ie x12) - page 4. (Read 13404 times)