Update Large review of Finksy/J4bbrwock server psus compared to ATXpsu-photos up - page 5.

Prelude

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Quote from: generalt on January 26, 2016, 11:04:01 PM

I have a question about the 4k dual PSU setup. I was wondering if the fan or fans ever fail for any reason, is there some sort of thermal shutdown for the DPS-2000BB?

Yes, they have thermal protection along with all other possible protections. No need to worry.

generalt

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I have a question about the 4k dual PSU setup. I was wondering if the fan or fans ever fail for any reason, is there some sort of thermal shutdown for the DPS-2000BB?

generalt

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Quote from: philipma1957 on January 21, 2016, 12:01:28 AM

@ generalalt the kilo17 big fan mod was not quite good enough for me. The 2880's would overheat running two avalon6s

I ordered some 90 mm fans from superbiiz bgears b-blaster going to demo it if it allow me to run the 2880 at 90% loads

Looking forward to that review as well. 2 90mm fans sound like a better fit for me as well since I only have 2 2880.

Wow sucks about burning out that board too. Sorry to hear that.

philipma1957

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Quote from: philipma1957 on January 21, 2016, 09:40:29 AM

Some new info on the avalon6 .. I burnt a board due to high voltage.

I suggest that your psu does not supply over 12.5 and when it is read on the gui 12.2 or under.

Quote from: philipma1957 on January 21, 2016, 09:05:09 AM

I based my 12.73 input setting on this info.

Do not input at this level!!

Quote from: philipma1957 on January 21, 2016, 08:52:17 AM

but my dual 2000/4000 240 volt

with 3 volt settings

11.8

12.1

12.6

has just burnt a board at the 12.6 setting.

I did not see magic smoke but I smelt it.

You can see that the temps read 33 31 75 the 31 should be a 73 or 75

So do not go to 12.6 volts

http://www.blockc.co/collections/bitcoin-miners-shop-avalon-blockc-co/products/avalon6-bitcoin-miner

note this page link above price is 10 for 11900 and volts are now at 11.8 to 12.2 so they had 2 different numbers for safe volts

https://en.bitcoin.it/wiki/Avalon6

2015-11-24
Version 601511-f4f59c70
Update Core test check rules
Update Input voltage check rules (Input voltage should not >= 12.8V) > I was under this number 12.73
Fix result when run test scripts

kilo17

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Quote from: philipma1957 on January 21, 2016, 12:01:28 AM

Quote from: thesmokingman on January 20, 2016, 09:10:19 PM

Quote from: philipma1957 on January 19, 2016, 09:38:31 AM

The dual 2000/4000 with the three voltage settings say 11.8. 12. 2 12.8

Are really good pretty quiet they do 4 avalon6s at medium volts. Setting .

Once I clean up the den and garage I will be running 3 at high volts .

phillipma1957 - what revision 2000 PSUs do you have? I have duals from REV1-4 that I'm going to be testing and want to compare the outputs for each REV. Running a dual pair of REV1 and at the highest setting I'm only getting 12.33 on the display. I may just need to tweak the pot as J4bber mentioned on the first page of your thread.

rev 7 ,8

@ generalalt the kilo17 big fan mod was not quite good enough for me. The 2880's would overheat running two avalon6s

I ordered some 90 mm fans from superbiiz bgears b-blaster going to demo it if it allow me to run the 2880 at 90% loads

I had the same problem this weekend. I have 2 sets of 90mm fans I am going to try.

philipma1957

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Quote from: thesmokingman on January 20, 2016, 09:10:19 PM

Quote from: philipma1957 on January 19, 2016, 09:38:31 AM

The dual 2000/4000 with the three voltage settings say 11.8. 12. 2 12.8

Are really good pretty quiet they do 4 avalon6s at medium volts. Setting .

Once I clean up the den and garage I will be running 3 at high volts .

phillipma1957 - what revision 2000 PSUs do you have? I have duals from REV1-4 that I'm going to be testing and want to compare the outputs for each REV. Running a dual pair of REV1 and at the highest setting I'm only getting 12.33 on the display. I may just need to tweak the pot as J4bber mentioned on the first page of your thread.

rev 7 ,8

@ generalalt the kilo17 big fan mod was not quite good enough for me. The 2880's would overheat running two avalon6s

I ordered some 90 mm fans from superbiiz bgears b-blaster going to demo it if it allow me to run the 2880 at 90% loads

thesmokingman

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Quote from: philipma1957 on January 19, 2016, 09:38:31 AM

The dual 2000/4000 with the three voltage settings say 11.8. 12. 2 12.8

Are really good pretty quiet they do 4 avalon6s at medium volts. Setting .

Once I clean up the den and garage I will be running 3 at high volts .

phillipma1957 - what revision 2000 PSUs do you have? I have duals from REV1-4 that I'm going to be testing and want to compare the outputs for each REV. Running a dual pair of REV1 and at the highest setting I'm only getting 12.33 on the display. I may just need to tweak the pot as J4bber mentioned on the first page of your thread.

generalt

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Quote from: kilo17 on January 19, 2016, 09:50:58 PM

Which 2000bb are early and which are the later revisions. What I really want to know is if all the revisions have the pot under the hood to adjust the voltage...thanks

See J4bberwock's post about it here https://bitcointalksearch.org/topic/m.13061344

kilo17

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Which 2000bb are early and which are the later revisions. What I really want to know is if all the revisions have the pot under the hood to adjust the voltage...thanks

generalt

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Quote from: nhando on January 19, 2016, 09:12:03 PM

GeneralT - You just need to check back often for new supply. I bought the last 16 IBM 2KW PSU for $20-35 shipped. The higher price was for the lower rev versions I'm chasing.

P.S I've ordered over 200 cables from Holybitcoins and Finksy along with 8 breakout boards. I must say the Quality Finksy / J4bberwock does is extraordinary. I'm still powering things up now but so far I've connected over 50% of the component and have yet to find 1 bad cable or port. Very Very happy with the quality of the product. My EVGA G2 1300W right now are just on standby, the IBM 2KW PSU are pretty nice.

LOL now I know why all the ebay prices are inflated! I had my eye on a listing that was selling them for $30 each. Now I know where they went. My own fault for waiting but I'm keeping my eye out on ebay for a new batch. Hopefully they pop up soon. I'm currently using the Finsky/J4bberwock 2880 breakout board and PCIe cables. They've worked flawless for me so far as well. The only bad thing is the extremely loud fans on the 2880's.

nhando

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Quote from: generalt on January 19, 2016, 08:01:15 AM

Phil,
Very nice to come out ahead! As usual I missed the boat on the DPS-2000 on ebay. It seems the prices have shot up so I'm assuming a lot of them were bought up and supply is low now.

dmwardjr,
Nice setup!

GeneralT - You just need to check back often for new supply. I bought the last 16 IBM 2KW PSU for $20-35 shipped. The higher price was for the lower rev versions I'm chasing.

P.S I've ordered over 200 cables from Holybitcoins and Finksy along with 8 breakout boards. I must say the Quality Finksy / J4bberwock does is extraordinary. I'm still powering things up now but so far I've connected over 50% of the component and have yet to find 1 bad cable or port. Very Very happy with the quality of the product. My EVGA G2 1300W right now are just on standby, the IBM 2KW PSU are pretty nice.

philipma1957

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'The right to privacy matters'

Quote from: generalt on January 19, 2016, 08:01:15 AM

Phil,
Very nice to come out ahead! As usual I missed the boat on the DPS-2000 on ebay. It seems the prices have shot up so I'm assuming a lot of them were bought up and supply is low now.

dmwardjr,
Nice setup!

The dual 2000/4000 with the three voltage settings say 11.8. 12. 2 12.8

Are really good pretty quiet they do 4 avalon6s at medium volts. Setting .

Once I clean up the den and garage I will be running 3 at high volts .

generalt

legendary

Activity: 1096

Merit: 1021

Phil,
Very nice to come out ahead! As usual I missed the boat on the DPS-2000 on ebay. It seems the prices have shot up so I'm assuming a lot of them were bought up and supply is low now.

dmwardjr,
Nice setup!

Prelude

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Quote from: philipma1957 on January 18, 2016, 10:31:26 PM

Do you know that the dual boards work with it?

Yes, they do work. J4bber even confirmed that they'd have no difficulty whatsoever handling 5000w of power, they're over built.

Quote from: J4bberwock on December 07, 2015, 05:22:20 PM

Quote from: Prelude on December 07, 2015, 05:03:45 PM

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

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Quote from: generalt on January 18, 2016, 09:52:23 PM

Quote from: philipma1957 on January 18, 2016, 09:26:02 PM

I am looking for a link to the dps2500 I would be willing to test it here.

http://www.ebay.com/itm/IBM-BladeCenter-DPS-2500BB-2320W-Power-Supply-Unit-39Y7400-39Y7405-/172011963911?

this seems to be it .

Wow how much have you spend on power supplies so far testing them? Thanks for doing this. Also if you love the 2500's and feel like dumping the 2000's let me know. Cheesy

my out of pocket to run this thread

From finksy/j4bberwock

I was sent 1x 30 pin board for dual 2000/4000
I was sent 1x 20 pin board for ibm 2880 maybe it is 24 pin
I was sent 1 ibm 2880
I was sent 20 15awg pcie cables
I was sent 20 16awg pcie cables

All at no cost.

My purchases 3 ibm 2980 total of 310 = 150 + 80 + 80 and I turned on people to the good ebay price on this.
Two dps 2000 psu's total of 50
Two scythe fans total of 35
two nuctua fans total of 50
two 180mm silverstone fans total of 60
A few power cables total of 30
A few power plugs total of 20
A rack total of 20

Grand total 575

While that seems like a lot I returned an Evga 1600T2
and a Seasonc platinum 1200

They were close to 700 at amazon for the two of them

So I am 125 ahead and I can run over 6900 watts vs 2800 watts.

When I get the rest of the boards I can run 2880 + 2980 +2980 = 8840

GRAND TOTAL OF 15820 WATTS.

I am supposed to go partners with another forum member on a 60k solar array.
He does the solar I add the rest.

Quote from: Prelude on January 18, 2016, 10:15:04 PM

Hi Phil,

That's the one. I have one too many DPS2500BB and I was looking to get rid of it. I'd happily sell it to you instead of listing it. I'll beat that price on eBay by a bit, and you get a known good PSU. I ran it loaded at 2200W DC for a week and a half to stress test it when I received it. Could have it shipped out to you as soon as tomorrow. Let me know.

Do you know that the dual boards work with it?

Prelude

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Quote from: philipma1957 on January 18, 2016, 09:26:02 PM

Quote from: Prelude on January 14, 2016, 01:32:31 PM

Quote from: Finksy on January 14, 2016, 01:26:59 PM

Quote from: Prelude on January 14, 2016, 12:33:27 PM

Quote from: philipma1957 on January 14, 2016, 08:51:19 AM

Quote from: kilo17 on January 14, 2016, 02:35:21 AM

4000 watts and 3 S7's should run fine- you have plenty of headroom

I am stable running 3 avalon6 on a single 2880, I suspect I will run into those issues without proper cooling. Shocked

I ran 17 amps x 240 volts = 4080 volts for 3 ½ days

2 scythe fans cooled the dual psu zero issues

i was doing 2 avalon6's and one s-7

4080w x 0.89 = 3631w DC, so you were still under the 4000w spec.

I've run 2 DPS2000 for about a week pulling 4500w DC from them and they didn't even blink. They are super tanks, massively overbuilt. The fact that you can adjust the OCP protection up to 196A via a trim pot should give you an idea.. These guys were overbuilt and under speced to 2000w in order to get higher efficiency I believe. When you're running at 100% 2000w capacity, it's likely that you're only actually using ~80% or so of the PSU's capacity.

Great to know, thank you!

No problem! 2 of these along with your dual breakout board is probably the best way to power miners today IMO. Could even make it a 5000w setup with your board using DPS2500 instead, and get slightly better efficiency to boot.

I am looking for a link to the dps2500 I would be willing to test it here.

http://www.ebay.com/itm/IBM-BladeCenter-DPS-2500BB-2320W-Power-Supply-Unit-39Y7400-39Y7405-/172011963911?

this seems to be it .

Hi Phil,

That's the one. I have one too many DPS2500BB and I was looking to get rid of it. I'd happily sell it to you instead of listing it. I'll beat that price on eBay by a bit, and you get a known good PSU. I ran it loaded at 2200W DC for a week and a half to stress test it when I received it. Could have it shipped out to you as soon as tomorrow. Let me know.

generalt

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Quote from: philipma1957 on January 18, 2016, 09:26:02 PM

I am looking for a link to the dps2500 I would be willing to test it here.

http://www.ebay.com/itm/IBM-BladeCenter-DPS-2500BB-2320W-Power-Supply-Unit-39Y7400-39Y7405-/172011963911?

this seems to be it .

Wow how much have you spend on power supplies so far testing them? Thanks for doing this. Also if you love the 2500's and feel like dumping the 2000's let me know. Cheesy

philipma1957

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'The right to privacy matters'

Quote from: Prelude on January 14, 2016, 01:32:31 PM

Quote from: Finksy on January 14, 2016, 01:26:59 PM

Quote from: Prelude on January 14, 2016, 12:33:27 PM

Quote from: philipma1957 on January 14, 2016, 08:51:19 AM

Quote from: kilo17 on January 14, 2016, 02:35:21 AM

4000 watts and 3 S7's should run fine- you have plenty of headroom

I am stable running 3 avalon6 on a single 2880, I suspect I will run into those issues without proper cooling. Shocked

I ran 17 amps x 240 volts = 4080 volts for 3 ½ days

2 scythe fans cooled the dual psu zero issues

i was doing 2 avalon6's and one s-7

4080w x 0.89 = 3631w DC, so you were still under the 4000w spec.

I've run 2 DPS2000 for about a week pulling 4500w DC from them and they didn't even blink. They are super tanks, massively overbuilt. The fact that you can adjust the OCP protection up to 196A via a trim pot should give you an idea.. These guys were overbuilt and under speced to 2000w in order to get higher efficiency I believe. When you're running at 100% 2000w capacity, it's likely that you're only actually using ~80% or so of the PSU's capacity.

Great to know, thank you!

No problem! 2 of these along with your dual breakout board is probably the best way to power miners today IMO. Could even make it a 5000w setup with your board using DPS2500 instead, and get slightly better efficiency to boot.

I am looking for a link to the dps2500 I would be willing to test it here.

http://www.ebay.com/itm/IBM-BladeCenter-DPS-2500BB-2320W-Power-Supply-Unit-39Y7400-39Y7405-/172011963911?

this seems to be it .

nhando

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Very surprised that my 3 x S7 running at 731M and 12V (usually 5.5AMP) and 1 Avalon running at 12.5V (Normally 5 Amp at 12V) is consuming close to 25AMP vs 21.5 to 22AMP per my AP7911 PDU AMP output reading. I'm starting to wonder if it's worth the extra power consumption.

kilo17

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Quote from: nhando on January 16, 2016, 02:42:04 PM

That looks like the Houston highway map. So basically above 75 is not ideal based on the info above. I will keep that in mind.

About 75 is ideal Wink

Topic: Update Large review of Finksy/J4bbrwock server psus compared to ATXpsu-photos up - page 5. (Read 20923 times)