dmwardjr
Legendary
Offline
Activity: 1302
Merit: 1318
Technical Analyst/Trader
|
|
January 07, 2016, 12:09:39 AM |
|
DAAAAAAAAAAMN.... LOL
Those are some big ass caps. LOL
got to go to a meeting I will post more tonight. Sure... Gotta do what you gotta do. Appreciate all you're doing...
|
|
|
|
nhando
|
|
January 07, 2016, 12:29:29 AM |
|
Haha, I want to LIVE.............When you have a chance, please also compare where the 2000W PSU stack up in the efficiency. I'm assuming it would be somewhere in the middle. Also can I trust my Wemo Insight? It's showing that the B8 S7 is pulling 1540W at the wall. That sounds way too high for such an efficient PSU like my EVGA G2 1300W.
|
Just "Mining" my own business.
|
|
|
Finksy
Legendary
Offline
Activity: 1022
Merit: 1003
|
|
January 07, 2016, 12:47:10 AM |
|
thanks for spacer I have been told to not double post as people perceive it as advertising my signature. sometimes I want a new post to show info more clearly.
Phil, Don't worry most of "these people's" barks are worse than their bite. We appreciate all the testing you are doing here, I am very anxious to see the 2980's numbers, sounds like prelude was right on the money so far. Also, did you by chance compare voltage by back-probing the loaded PCIe cables to see if there's any noticeable voltage drop vs the loose one? and if the avalon's gui for voltage is accurate? I've heard varying testimonies about it.
|
|
|
|
Finksy
Legendary
Offline
Activity: 1022
Merit: 1003
|
|
January 07, 2016, 12:51:09 AM |
|
Haha, I want to LIVE.............When you have a chance, please also compare where the 2000W PSU stack up in the efficiency. I'm assuming it would be somewhere in the middle. Also can I trust my Wemo Insight? It's showing that the B8 S7 is pulling 1540W at the wall. That sounds way too high for such an efficient PSU like my EVGA G2 1300W.
The B8 S7's pull around 1330W DC (rating of 1422W at the wall with 93% efficient PSU as per bitmain's specs) which is over 100% load on your EVGA 1300. This would make effective efficiency 86-87%%, which would be about right considering how high the load is on it.
|
|
|
|
generalt
Legendary
Offline
Activity: 1096
Merit: 1021
|
|
January 07, 2016, 01:53:05 AM |
|
Just my luck that I only have enough power to run two 2880 PSU and not three. I wonder if it's possible to use the 180mm fan with just two units stacked.
|
BTC: 1GENERALrtBAjEv2Ps5cmEW1FADnXh1bCZ
|
|
|
hawkfish007
|
|
January 07, 2016, 01:59:05 AM |
|
Just my luck that I only have enough power to run two 2880 PSU and not three. I wonder if it's possible to use the 180mm fan with just two units stacked.
Maybe 2 120 or 140 mm fan will work? I have 2 2980W PSUs coming on my way, I will be able to check. Good thing is 2980W has built in 3 pin header for fans so adding any fans would be easy.
|
|
|
|
generalt
Legendary
Offline
Activity: 1096
Merit: 1021
|
|
January 07, 2016, 02:08:30 AM |
|
Maybe 2 120 or 140 mm fan will work? I have 2 2980W PSUs coming on my way, I will be able to check. Good thing is 2980W has built in 3 pin header for fans so adding any fans would be easy.
Are those standard 3 pin headers? I hope the 2880s have them too. I'm not sure that the area is wide enough for two 120mm fans since kilo's 180mm seems to fit pretty well.
|
BTC: 1GENERALrtBAjEv2Ps5cmEW1FADnXh1bCZ
|
|
|
hawkfish007
|
|
January 07, 2016, 02:17:01 AM |
|
Maybe 2 120 or 140 mm fan will work? I have 2 2980W PSUs coming on my way, I will be able to check. Good thing is 2980W has built in 3 pin header for fans so adding any fans would be easy.
Are those standard 3 pin headers? I hope the 2880s have them too. I'm not sure that the area is wide enough for two 120mm fans since kilo's 180mm seems to fit pretty well. They seem like regular 3 pin header, check philip's pictures. I don't think 2880W has 3 pin header, but I may be wrong. All of my 2880W are at a hosting place. May be smaller than 2x 120 mm will work? If somebody can stack 2 PSUs and measure?
|
|
|
|
nhando
|
|
January 07, 2016, 02:34:42 AM |
|
Haha, I want to LIVE.............When you have a chance, please also compare where the 2000W PSU stack up in the efficiency. I'm assuming it would be somewhere in the middle. Also can I trust my Wemo Insight? It's showing that the B8 S7 is pulling 1540W at the wall. That sounds way too high for such an efficient PSU like my EVGA G2 1300W.
The B8 S7's pull around 1330W DC (rating of 1422W at the wall with 93% efficient PSU as per bitmain's specs) which is over 100% load on your EVGA 1300. This would make effective efficiency 86-87%%, which would be about right considering how high the load is on it. Thanks Finksy, guess no more using the EVGA going forward and just stick to my 2000W PSUs. Can't wait to get your new 4K boards!!!!!!!!!!!!!! Phillip - What should I expect at the walls w the 2K PSU for Batch 8 @standard Freq?
|
Just "Mining" my own business.
|
|
|
philipma1957 (OP)
Legendary
Offline
Activity: 4256
Merit: 8587
'The right to privacy matters'
|
|
January 07, 2016, 03:16:48 AM |
|
those headers for the fans are small four pin not three pin.
i am not ready to test the 2980 but the bottomline is it appears to be 100 watts better on a 2000 watt load.
say 2000 vs 2100. i am going to check watts tonight and tommorrow on the 2880 then do full
watts on the 2980 the fans are due on fri so i will post fans on sat or sun.
i found on my batch 2 s-7 that it liked the 12.2 volt setting on the 4000 watt psu
also it did well on the 2880 watter which about 12.2 volts.
i got freq 637 5150gh on a freq 575 unit.
i only have the two avalon sixes for testing.
the s-7 is at my buddies office.
|
|
|
|
VirosaGITS
Legendary
Offline
Activity: 1302
Merit: 1068
|
|
January 07, 2016, 03:18:08 AM |
|
Haha, I want to LIVE.............When you have a chance, please also compare where the 2000W PSU stack up in the efficiency. I'm assuming it would be somewhere in the middle. Also can I trust my Wemo Insight? It's showing that the B8 S7 is pulling 1540W at the wall. That sounds way too high for such an efficient PSU like my EVGA G2 1300W.
The B8 S7's pull around 1330W DC (rating of 1422W at the wall with 93% efficient PSU as per bitmain's specs) which is over 100% load on your EVGA 1300. This would make effective efficiency 86-87%%, which would be about right considering how high the load is on it. Thanks Finksy, guess no more using the EVGA going forward and just stick to my 2000W PSUs. Can't wait to get your new 4K boards!!!!!!!!!!!!!! Phillip - What should I expect at the walls w the 2K PSU for Batch 8 @standard Freq? It should be 99.46% load on a 1300w G2. The math is 1293W/0.88eff(@120v input)=1470W at the wall. Just a bit over the 12A/15A 80% limit. Not excellent but not bad either. Should be getting mine tomorrow to get some real world tests.
|
|
|
|
nhando
|
|
January 07, 2016, 03:22:55 AM |
|
Thanks......WEMO is showing 1540W.............. Not loving that number too much. Don't even like 1400W number. Definitely want better efficiency.
|
Just "Mining" my own business.
|
|
|
philipma1957 (OP)
Legendary
Offline
Activity: 4256
Merit: 8587
'The right to privacy matters'
|
|
January 07, 2016, 03:28:40 AM Last edit: January 07, 2016, 04:12:37 AM by philipma1957 |
|
2880 watt psu tests
30 min
amps 9.1 volts 241 dc 12.20 dc 12.10 dc 12.00 hash 6879 watts 2193 watts per gh 0.3188
1 hour
amps = 9.0 volts = 241 dc = 12.20 at the one un - used pcie cable dc = 12.10 at avalon 1 software reading dc = 12.00 at avalon 2 software reading hash = 6872 watts = 2169 watts per gh = 0.3156
2 hour
amps = 9.0 volts = 241 dc = 12.20 at the one un - used pcie cable dc = 12.10 at avalon 1 software reading dc = 12.00 at avalon 2 software reading hash = 6849 watts = 2169 watts per gh = 0.3166
7 hour
amps = 8.9 9.0 volts = 240 dc = 12.20 dc = 12.2 at avalon 1 dc = 11.9 at avalon 2 dc = 11.98 backprobe of both avalons were 11.97 and 11.98 watts = 2160 hash = 6830 watts per gh = 0.3162
I am done with 2880 watter
Next is 2980
30 Min
amps = 8.5 volts = 240 dc = 12.15--------empty pcie dc = 12.10 -------avalon 1 dc = 12. 00 ------ avalon 2 dc = ? backprobe is hard to do watts = 2040 this is a 120 watt improvement but dc is 12.15 vs 12.20 hash = 6780 this is slightly less due to lower volts watts per gh = 0.3008 this is better then any of the 2880, but by a little more like 4.9% not quite 6%
early test of the 2980 will do more in the morning.
A note on the 2880w pulling the fan pack is easy to do a note on the 2980w pulling the fan pack is hard to do.
second note the 2880w will allow you to do the kilo17 mod.
the 2880w is a special 4 pin with a jumper setup for each of the 3 fans the psu's will run with fans not attached.
the 2980w is a tiny four pin pwm you may not be able to run the 2980w with out the fan pack attached.
so all I am sure of is the 2980 stock runs 5% better then the 2880 stock. in the 30 minute test.
|
|
|
|
Finksy
Legendary
Offline
Activity: 1022
Merit: 1003
|
|
January 07, 2016, 04:10:11 AM |
|
It should be 99.46% load on a 1300w G2. The math is 1293W/0.88eff(@120v input)=1470W at the wall. Just a bit over the 12A/15A 80% limit. Not excellent but not bad either. Should be getting mine tomorrow to get some real world tests.
1293W isn't their DC power consumption though. As per bitmain's specs: Power Consumption: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp) 1293 x 1.1 = 1,422.3 W at the wall with 93% efficient PSU. . Back-tracking you get 1422.3W x 0.93 (taking out their rated PSU) =1322.74W DC, 101.75% load on a 1300W G2. They started adding the +10% for power consumption when they started offering the 135 chip S7's, that isn't the PSU efficiency being added. At least that's how I interpret it, I don't have anything post B6.
|
|
|
|
marvykkio
|
|
January 07, 2016, 10:00:22 AM |
|
You guys are too awesome, your detail reviews definitely helps others decide what is best for them (size, efficiency, noise level, etc). I just hooked up my next pair of IBM 2K PSU and of course I found out they are the newer Rev so I can't use them with the 4K board voltage controls (Only work with Rev 8 or lower per Finksy). Going to order a pair of older rev PSU from FINKSY to go with the new 4K board bundle. For this new pair of IBM 2K PSU, I simply just use the Scotch mounting tape Phillip recommended. http://www.amazon.com/gp/product/B00004Z498?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00 Although they feel weak to the touch, these things are strong as heck when you tape them to something. They're so strong that I didn't even bother to split out the other pair of PSU to find out the Rev #. I only use a small piece to attach the FAN together. Since they're at the bottom of the PSU, I didn't even need to use a mount, just place the PSU (taped together) on top and it's nice and steady on top. I love this SCOTCH TAPE! Make this solution clean, sexy and no obstruction to flow. Guess I wont be needing to buy any fan mounting kit with this Tape. Op, please quote my message so picture will show. http://imgur.com/a/MaTjR3m double side tape works if you have the older single breakout boards board and grilled shelf system this is nhando's twist on my mount these feeders who sells them? and how much they cost? here you go : he double side tape the two fans he uses the shelf as a grill and base lastly he gets good wire management this is 2 single 2000 watt breakout finksy j4bberwock boards
|
|
|
|
nhando
|
|
January 07, 2016, 02:06:26 PM |
|
|
Just "Mining" my own business.
|
|
|
philipma1957 (OP)
Legendary
Offline
Activity: 4256
Merit: 8587
'The right to privacy matters'
|
|
January 07, 2016, 05:41:59 PM Last edit: January 08, 2016, 01:53:16 AM by philipma1957 |
|
2880 watt psu tests
30 min
amps 9.1 volts 241 dc 12.20 dc 12.10 dc 12.00 hash 6879 watts 2193 watts per gh 0.3188
1 hour
amps = 9.0 volts = 241 dc = 12.20 at the one un - used pcie cable dc = 12.10 at avalon 1 software reading dc = 12.00 at avalon 2 software reading hash = 6872 watts = 2169 watts per gh = 0.3156
2 hour
amps = 9.0 volts = 241 dc = 12.20 at the one un - used pcie cable dc = 12.10 at avalon 1 software reading dc = 12.00 at avalon 2 software reading hash = 6849 watts = 2169 watts per gh = 0.3166
7 hour
amps = 8.9 9.0 volts = 240 dc = 12.20 dc = 12.2 at avalon 1 dc = 11.9 at avalon 2 dc = 11.98 backprobe of both avalons were 11.97 and 11.98 watts = 2160 hash = 6830 watts per gh = 0.3162
I am done with 2880 watter
Next is 2980
30 Min
amps = 8.5 volts = 240 dc = 12.15--------empty pcie dc = 12.10 -------avalon 1 dc = 12. 00 ------ avalon 2 dc = ? backprobe is hard to do watts = 2040 this is a 120 watt improvement but dc is 12.15 vs 12.20 hash = 6780 this is slightly less due to lower volts watts per gh = 0.3008 this is better then any of the 2880, but by a little more like 4.9% not quite 6%
14 hour results
amps = 8.5 volts = 240 dc = 12.15 -----empty pcie dc = 12.10 ----- avalon 1 dc = 11.90 ----- avalon 2 dc = 11.94 ------ backprobe of a pcie cable under load watts = 2040 ------ hash = 6798 ----- watts per gh = 0.30008
A note on the 2880w pulling the fan pack is easy to do a note on the 2980w pulling the fan pack is hard to do.
second note the 2880w will allow you to do the kilo17 mod.
the 2880w is a special 4 pin with a jumper setup for each of the 3 fans the psu's will run with fans not attached.
the 2980w is a tiny four pin pwm you may not be able to run the 2980w with out the fan pack attached.
I am sure o the 2980 stock runs 5% better then the 2880 stock. in the 30 minute test. and a longer overnight test.
I am going to do back probe at the avalon on dc done
then do the dual 2000/4000 tests next to do.
_______________________________________________________________________________ ___________ the dual 2000/net 4000 setup has 3 volts setting and some more tweaking with a small pot.
top volts setting 90 minutes
amps = 12 could be more my pdu does .0 until I reach 10 so if I go above 10 readings are really +- 240 watts volts = 240 dc = 12.84 dc = 12.7 dc = 12.5 dc = 12.2 backprobe numbers watts =2880 hash = 8000 watts per gh = 0.3597 I know the avalon chip burns more power when overclocked so this is not a helpful judge of the psu's eff
middle volts setting 90 minutes
amps = 9.6 volts = 240 dc = 12.22 dc = 12.3 avalon 1 dc = 12.0 avalon 2 dc = 12.01 backprobe numbers watts = 2304 hash = 7167 watt per gh = 0.3214 this is disappointing I need to check again as this puts the dual 2000/4000 net in last place at the close to 12.15-12.22 volt out
also this is 4000 watt capacity so 2300/4000 is closer to half load I would have thought I would do better.
now results at 12.15-12.22 volt settings
2880watter at 12.20 did .3188 watts a gh
2980watter at 12.15 did .30008 watts a gh
4000watter at 12.22 did .3214 watts a gh
the 4000 watt dual is vey quiet and is using only 15-18 watts for cooling
both the 2980 and the 2880 use the stock 3 fan pack of tiny loud deltas at 60 watts.
So I need to keep testing the 4000 watter to see if I have an error. I also nee to setup the 180mm cooling fan with the 2980 psu.
that will be for the weekend.
|
|
|
|
nhando
|
|
January 08, 2016, 03:01:03 PM |
|
the dual 2000/net 4000 setup has 3 volts setting and some more tweaking with a small pot.
volts = 240 dc = 12.84 dc = 12.7 dc = 12.5 dc = 12.2 backprobe numbers watts =2880 hash = 8000 watts per gh = 0.3597 I know the avalon chip burns more power when overclocked so this is not a helpful judge of the psu's eff
= Me LIKEY LIKEY...... I can't wait until my new 4K board on Monday to Just START my A6 to get it to 3.9-4TH. It's gimping along at 3.2 now. That's almost like getting 2 S3 for free with less power used.
|
Just "Mining" my own business.
|
|
|
philipma1957 (OP)
Legendary
Offline
Activity: 4256
Merit: 8587
'The right to privacy matters'
|
|
January 08, 2016, 04:50:38 PM |
|
the dual 2000/net 4000 setup has 3 volts setting and some more tweaking with a small pot.
volts = 240 dc = 12.84 dc = 12.7 dc = 12.5 dc = 12.2 backprobe numbers watts =2880 hash = 8000 watts per gh = 0.3597 I know the avalon chip burns more power when overclocked so this is not a helpful judge of the psu's eff
= Me LIKEY LIKEY...... I can't wait until my new 4K board on Monday to Just START my A6 to get it to 3.9-4TH. It's gimping along at 3.2 now. That's almost like getting 2 S3 for free with less power used.
the big kilo17 fans just got delivered I will be testing more. One thing more on the low under volt clock of the 4000 watt setup you can run the gear really quiet. and I am using 7.6 amps for 2 avalon6s so you can run 4 avalon6's easy with the dual 2000 at low speed
|
|
|
|
marvykkio
|
|
January 08, 2016, 07:41:57 PM |
|
where you buy these psu IBM? they are cheap?
|
|
|
|
|