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Topic: BITMAIN AntMiner APW3-12-1600 PSU Series - page 14. (Read 36649 times)

legendary
Activity: 1358
Merit: 1003
Designer - Developer
So, does this mean that you will only provide support for people using Bitmain(Tm) power supplies for future miners?
Or is this just me being paranoid?
Extremely paranoid Tongue As long as you're not using a 300x 12V rail PSU made by SUPERHIBIGPOWERWOWLED corporation, I'll help out where I can.

Holy shit.. Be careful with these things guys... I'd advise everyone to be careful as hell if you are buying these and make sure you inspect them inside and out.
It has short circuit protection, as it worked in this case. I'm not sure what the point of that drilled hole was, but it will get fixed.

Regardless of short circuit protection or not that's pretty shit workmanship not to mention quality control if they are letting garbage like that past.
I've owned Bitmain devices in the past (I think you help me set them up actually Dogie) and found them to be of decent quality..
Seemingly not the case with these power supplies though.. :/
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
No, I stand by what I said. It'd be fun to see someone hook one of these up to a Neptune thinking "oh, 1600W is plenty" and see the jackets on the 18AWG wires wilt off within a few seconds before the whole thing starts burning. The PSU itself might survive but not the cabling. It's a terrible idea (I can't in good conscience ever recommend anyone run Neptunes) but if someone does it I'd like to see video.

Be much less fun if it had 16AWG wires. 150W on 18AWG is probaby okay. 8-pin PCIe for GPUs are probably mostly 18AWG and those are rated for 150W by the standard, which means they're probably capable of more, and 8-pin PCIe only has three power leads.

But remember that there are two 8 pin PCI-Es per cable rail = 'rated for 300W' on 18AWG. We're running a single PCI-E per cable rail on this PSU.
full member
Activity: 120
Merit: 100
These power supplies are great but it highlights the need for bitmain, and other miner manufacturers, to continue to produce miners without power supplies. I'm sure we are getting a bottom price or close to from Bitmain. But we can still do so much better with recycled server equipment. Here are some numbers:

Bitmain PWS: 1600w $155 or .096875usd per watt

2880w IBM Server PWS:
$40 for power supply
$60 for breakout board
---
$100 or .034722usd per watt, and, you get better efficiency, these are actually rated titanium 80plus level so >96% eff at 50% load. Better fans, 3 of them for redundancy when one burns out. You also get to choose the gauge of wire for your pcie and it is not hardwired but modular. You also get to support the smaller bitcoin guy with the breakout boards.

I'm sure bitmain is not charging us 3x their actual cost. And I'm sure IBM paid a lot more than $40 to manufacture those 2880w power supplies.
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
No, I stand by what I said. It'd be fun to see someone hook one of these up to a Neptune thinking "oh, 1600W is plenty" and see the jackets on the 18AWG wires wilt off within a few seconds before the whole thing starts burning. The PSU itself might survive but not the cabling. It's a terrible idea (I can't in good conscience ever recommend anyone run Neptunes) but if someone does it I'd like to see video.

Be much less fun if it had 16AWG wires. 150W on 18AWG is probaby okay. 8-pin PCIe for GPUs are probably mostly 18AWG and those are rated for 150W by the standard, which means they're probably capable of more, and 8-pin PCIe only has three power leads.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
So, does this mean that you will only provide support for people using Bitmain(Tm) power supplies for future miners?
Or is this just me being paranoid?
Extremely paranoid Tongue As long as you're not using a 300x 12V rail PSU made by SUPERHIBIGPOWERWOWLED corporation, I'll help out where I can.

Holy shit.. Be careful with these things guys... I'd advise everyone to be careful as hell if you are buying these and make sure you inspect them inside and out.
It has short circuit protection, as it worked in this case. I'm not sure what the point of that drilled hole was, but it will get fixed.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
Its 18AWG.

not good but thanks for an honest answer.

if I buy this with 2 s-5's  I will be pushing the wires at freq 375 and higher.

Why would it be? S6 @ 375 is no more than 600W pre PSU = 150W per cable strand = perfectly fine on 18AWG. On tubes we were doing 250-300W per cable strand on 18AWG which was the sensible limit.


18AWG? Gross. Though 1600W at 12 cables is only about 4A per wire... That'd be good enough for most things. I'd like to see one of these hooked up to some Neptune cubes and watch the entire setup burst into flames though.
Fixed Cheesy


By the numbers this is a nice-lookin' PSU. I hope Dogie's right about the fan not sounding terrible, because every 1U fan I've listened to (for example DPS800, DPS1200 and all SP rackables) are super annoying. It'd be nice to have user-defined cabling too.
That's what I expected to, thought I'd have to stress test it during the first day then turn it off but nope, I actually can't hear the fan in my setup. While I can't tachometer it (blades are too small for a marker dot), it does look pretty low RPM. Maybe we can have different cabled versions in the future.
newbie
Activity: 43
Merit: 0
So, does this mean that you will only provide support for people using Bitmain(Tm) power supplies for future miners?
Or is this just me being paranoid?
legendary
Activity: 1358
Merit: 1003
Designer - Developer
Holy shit.. Be careful with these things guys..

Look at those pictures above.. Looks like bitmain is selling house burners if you ask me.
I'd advise everyone to be careful as hell if you are buying these and make sure you inspect them inside and out.

I'm disgusted that shit like that even made it through their QA testing... Step up your game bitmain before you kill someone.
hero member
Activity: 672
Merit: 500
sorry bitmain but at that price used server class delta psus is better option
and please show me a delta server with a breakout board for 12 pcie connectors they said 12 pairs in the copy but I think they mean 12 connectors
actually you don't need breakout boards for them i solder wires directly to psu pins it only requres time and 100W soldering iron
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
PCI-E cables 16AWG or 18AWG?
Good question, I'll try and find out. The spade connector version used 10AWG.

Its 18AWG.

18AWG? Gross. Though 1600W at 12 cables is only about 4A per wire... That'd be good enough for most things. I'd like to see one of these hooked up to some Neptune cubes and watch the entire setup burst into flames though.

Also, Phil, how does my DPS-2000BB breakout board and PSU stack up to your criteria? The efficiency might not be quite as good, but the board holds 12 cables natively (I've run 16 without issue, pushing two Prismas per PSU) and a kit costs less than $155. We don't 1-year the PSU (90 days typical for used equipment) but lifetime on the board and cables.

By the numbers this is a nice-lookin' PSU. I hope Dogie's right about the fan not sounding terrible, because every 1U fan I've listened to (for example DPS800, DPS1200 and all SP rackables) are super annoying. It'd be nice to have user-defined cabling too.
legendary
Activity: 1428
Merit: 1000
https://www.bitworks.io
PCI-E cables 16AWG or 18AWG?
Good question, I'll try and find out. The spade connector version used 10AWG.

Its 18AWG.

In that case it would seem appropriate to provide a maximum amperage per connection in the specs and make it clear, it could be dangerous for your customers if not..
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
PCI-E cables 16AWG or 18AWG?
Good question, I'll try and find out. The spade connector version used 10AWG.

Its 18AWG.

not good but thanks for an honest answer.

if I buy this with 2 s-5's  I will be pushing the wires at freq 375 and higher.

btw 1 of these psu's and 2 s-5s is 911 usd with shipping

1 s4+ is 1071 usd with shipping
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
PCI-E cables 16AWG or 18AWG?
Good question, I'll try and find out. The spade connector version used 10AWG.

Its 18AWG.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
sorry bitmain but at that price used server class delta psus is better option

and please show me a delta server with a breakout board for 12 pcie connectors they said 12 pairs in the copy but I think they mean 12 connectors


.that does 1600 watts at 92% efficency

with a 1 year warranty  .

cost 155 usd.

My issues are not with price .

Quality control based on the post above yours .

and does it do 92% at 1500-1600 watts?

does it do 93.8% at 1200 watts?

last question is are the wires 16 gauge? 

I could see someone running 2 s-5's and this psu have issues if the wires are 18 gauge.
hero member
Activity: 672
Merit: 500
sorry bitmain but at that price used server class delta psus is better option
legendary
Activity: 1218
Merit: 1003
Good job, Bitmain! Is it an allusion to your new not yet announced 1U miner?  Wink

No, its the same PSU in the S4+, which is 3U.


First of all, sorry for the large pictures..  Grin

Alright, opened it up and I am a bit shocked about build quality...

Spare (sharp) aluminium parts lyhing around in middle of the cables...



So I did some messuring, definately an issue with the PSU. I opened it up and and it was clear why it's not working...




I mean, really!?

Fixed the cable, no it's working... Actually things like that can be dangerous...

https://bitcointalk.org/index.php?topic=1035657.80
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
PCI-E cables 16AWG or 18AWG?
Good question, I'll try and find out. The spade connector version used 10AWG.


Noise? and at what fan speed?
I couldn't notice the fan noise even during a 45C ambient test, unsure on the RPM but its not quick.


Fan speed variable or fixed?
This unit can 100% load @ 50C and 80% load at 60C so I would have thought it was variable to hit those higher numbers.


Who is the original manufacturer?
I doubt they'll say who the OEM is.


S4+ sales must be terrible if your resorting to this.  Maybe you should lower the S4+ price and we would buy them. 
It was always the plan to sell the PSUs.
legendary
Activity: 1260
Merit: 1009
S4+ sales must be terrible if your resorting to this.  Maybe you should lower the S4+ price and we would buy them. 
sr. member
Activity: 326
Merit: 250
PCI-E cables 16AWG or 18AWG?
Noise? and at what fan speed?
Fan speed variable or fixed?
Who is the original manufacturer?
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
Good job, Bitmain! Is it an allusion to your new not yet announced 1U miner?  Wink

No, its the same PSU in the S4+, which is 3U.
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