Topic: ANTMINER S5+ is available to order, 7.722TH/S 0.445J/GH - page 10. (Read 40038 times)

Quote from: yochdog on August 14, 2015, 04:28:27 PM

Quote from: Epoch on August 19, 2015, 08:09:30 PM

You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).

Do all PCI ports need to be powered? Or will it run with 2 on each board?

2 is fine, still only about 165W per PCI-E.

Are you certain that using 2 is fine? The product description page says all three are required. It may be that each PCIe plug powers a specific set of chips; the 3 PCIe connectors may not share a common power bus at all as in, say, the S3 design. Without knowing the actual S5+ design, or having an actual unit to look at, saying "2 is fine" is only speculation at this point unless something more is known than what bitmain has disclosed so far.

Bitmain could confirm this here, but they aren't posting much these days. If anyone already has a unit, they could also confirm whether using 2 out of the 3 connectors works and post here.

What Bitmain customer Service told us was we have to use all 3 connectors for each board, As my understanding if each board need at least 382W(3436/9), in average each connector should be bear [email protected] , and if it works using only 2 connectors instead that will be [email protected] for each connector , it is high risk to heat up or burn your cables if they are not good enough.

This still doesn't answer the question of whether all 3 are *required* by design, or can 2 be used if the cables can handle the increased current?

BTW the power requirements aren't as high as you mention: 3436W quoted by bitmaintech is at the wall, using a 93% efficient PSU. So the DC power to the S5+ would only be 3436*0.93 or 3196 watts, or 355W per board. *If* the design allowed the use of 2 connectors per board, this would put 178W per connector (14.8A). This isn't bad, considering S3+ units can easily be powered with 2 PCIe cables and those use around 355W as well.

please see test here. https://www.youtube.com/watch?v=pu6qtsuw8-4

phantitox

sr. member

Activity: 385

Merit: 250

so... x27 6pin pcie cables per miner.... im planning to use 3 hp 1200w power supply per miner... but.. 9 cables per power supply .. Huh

this seems hard to do... anyone knows where to purchase those 6 pin pcie cables awg 16.. ?

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: itop_james on August 19, 2015, 07:41:13 PM

Quote from: yochdog on August 14, 2015, 04:28:27 PM

Quote from: itop_james on August 19, 2015, 07:41:13 PM

You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).

Do all PCI ports need to be powered? Or will it run with 2 on each board?

2 is fine, still only about 165W per PCI-E.

Are you certain that using 2 is fine? The product description page says all three are required. It may be that each PCIe plug powers a specific set of chips; the 3 PCIe connectors may not share a common power bus at all as in, say, the S3 design. Without knowing the actual S5+ design, or having an actual unit to look at, saying "2 is fine" is only speculation at this point unless something more is known than what bitmain has disclosed so far.

Bitmain could confirm this here, but they aren't posting much these days. If anyone already has a unit, they could also confirm whether using 2 out of the 3 connectors works and post here.

What Bitmain customer Service told us was we have to use all 3 connectors for each board, As my understanding if each board need at least 382W(3436/9), in average each connector should be bear [email protected] , and if it works using only 2 connectors instead that will be [email protected] for each connector , it is high risk to heat up or burn your cables if they are not good enough.

This still doesn't answer the question of whether all 3 are *required* by design, or can 2 be used if the cables can handle the increased current?

BTW the power requirements aren't as high as you mention: 3436W quoted by bitmaintech is at the wall, using a 93% efficient PSU. So the DC power to the S5+ would only be 3436*0.93 or 3196 watts, or 355W per board. *If* the design allowed the use of 2 connectors per board, this would put 178W per connector (14.8A). This isn't bad, considering S3+ units can easily be powered with 2 PCIe cables and those use around 355W as well.

They make a big deal about using 3 per board, so I would not try to personally. They actually ship a piece of paper with some general instructions, and an email with it to. And in all of them it made sure you use 3 per board.

So under pcie specs should it run if high quality psu with nice cables... yes. But they make sure to tell you only run with 3 in each. If you do 2 i'm sure it violates warranty.

Epoch

legendary

Activity: 922

Merit: 1003

Quote from: yochdog on August 14, 2015, 04:28:27 PM

Quote from: Tupsu on August 19, 2015, 10:47:23 AM

You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).

Do all PCI ports need to be powered? Or will it run with 2 on each board?

2 is fine, still only about 165W per PCI-E.

Are you certain that using 2 is fine? The product description page says all three are required. It may be that each PCIe plug powers a specific set of chips; the 3 PCIe connectors may not share a common power bus at all as in, say, the S3 design. Without knowing the actual S5+ design, or having an actual unit to look at, saying "2 is fine" is only speculation at this point unless something more is known than what bitmain has disclosed so far.

Bitmain could confirm this here, but they aren't posting much these days. If anyone already has a unit, they could also confirm whether using 2 out of the 3 connectors works and post here.

What Bitmain customer Service told us was we have to use all 3 connectors for each board, As my understanding if each board need at least 382W(3436/9), in average each connector should be bear [email protected] , and if it works using only 2 connectors instead that will be [email protected] for each connector , it is high risk to heat up or burn your cables if they are not good enough.

This still doesn't answer the question of whether all 3 are *required* by design, or can 2 be used if the cables can handle the increased current?

BTW the power requirements aren't as high as you mention: 3436W quoted by bitmaintech is at the wall, using a 93% efficient PSU. So the DC power to the S5+ would only be 3436*0.93 or 3196 watts, or 355W per board. *If* the design allowed the use of 2 connectors per board, this would put 178W per connector (14.8A). This isn't bad, considering S3+ units can easily be powered with 2 PCIe cables and those use around 355W as well.

cniht

newbie

Activity: 45

Merit: 0

Quote from: edonkey on August 19, 2015, 10:01:18 AM

.........
Further, we can look at this from a historic perspective. Has there ever been a mining product from Bitmain in the past that only had a single batch? Even the U3 had 2 batches, and it probably was a niche item.

Yes.
Antminer S3++
and Antminer L1
https://www.bitmaintech.com/productDetail.htm?pid=00020140830074550960Um75pnzg06E3

I think that we are still seeing S5+ batches, but only used miners, and not before a couple of months.

I thought Bitmain killed their entire Scrypt Miner ASIC project along with KnC. Weren't able to pull it off, especially when some of the script coin people were warning they were going to intentionally try to FUBAR things for those units should they start shipping them with slight changes. Not saying there aren't some small scale ASIC in capable of script mining, just they were going to intentionally make the script more resistant if major manufacturers got in the game. Seems they didn't like the thought of all the centralization occurring. (Not like it isn't happening anyway)

yslyung

legendary

Activity: 1500

Merit: 1002

Mine Mine Mine

regardless of "x" amt of batches, s7,8,9,X,11 & so on ... end of the day it WILL always be :

TOO EXPENSIVE !
-almost no chance of ROI *unless FREE or SUPER LOW elec rates*
even with that if i'm not mistaken it'll take a minimum of 4-5 months with FREE elec. excluding psu+cable+taxes+0 downtime+100% luck+PERFECT scenario
-prices will always change along with btc price
-miner issues with S&H, HW, FW etc

if you the buyer DO NOT have FREE or super low elec. rates, imVERYho FORGET about it ! DO NOT BUY. buying STOPS so does the KILLING !

most people till now really surprises me that they DO NOT:

-take into account of diff jumps or reduces bla bla bla but always put it at WORSE case scenario
-also use a lower prediction of BTC prices for ROI calculations please
-add in shipping ! or any taxes if applicable
-psu, cables, fans, etc . . .

just ma couple of sats. $ is yours, decision is yours. atm things does look -ve

itop_james

member

Activity: 68

Merit: 11

Quote from: yochdog on August 14, 2015, 04:28:27 PM

You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).

Do all PCI ports need to be powered? Or will it run with 2 on each board?

2 is fine, still only about 165W per PCI-E.

Are you certain that using 2 is fine? The product description page says all three are required. It may be that each PCIe plug powers a specific set of chips; the 3 PCIe connectors may not share a common power bus at all as in, say, the S3 design. Without knowing the actual S5+ design, or having an actual unit to look at, saying "2 is fine" is only speculation at this point unless something more is known than what bitmain has disclosed so far.

Bitmain could confirm this here, but they aren't posting much these days. If anyone already has a unit, they could also confirm whether using 2 out of the 3 connectors works and post here.

What Bitmain customer Service told us was we have to use all 3 connectors for each board, As my understanding if each board need at least 382W(3436/9), in average each connector should be bear [email protected] , and if it works using only 2 connectors instead that will be [email protected] for each connector , it is high risk to heat up or burn your cables if they are not good enough.

Epoch

legendary

Activity: 922

Merit: 1003

Quote from: yochdog on August 14, 2015, 04:28:27 PM