Antminer S1 or S3 Power Supply in UK

jbmac1967

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Quote from: allcoinminer on August 04, 2014, 02:27:14 PM

Quote from: jbmac1967 on July 31, 2014, 11:49:24 AM

After looking at the 12v rail and doing the calculation

What is the minimum power needed to run an s3

Ideally you only need 340Watts in +12V rail if S3 is running at stock clock.
340Watts in +12V rail means 340/12= 28.33A. This is in theory.
But when you run a load for 24hours every day and in practical considerations this 28A in 12V is not sufficient.
The PSU sizing may be done by making the rated load to 125%.
So, the antminer consumption should be considered as 340*1.25 = 425Watts.
So select a good branded power supply were their +12V single rails is giving at least 425Watts or 35A.

Exactly what i was after

allcoinminer

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Quote from: jbmac1967 on July 31, 2014, 11:49:24 AM

After looking at the 12v rail and doing the calculation

What is the minimum power needed to run an s3

Ideally you only need 340Watts in +12V rail if S3 is running at stock clock.
340Watts in +12V rail means 340/12= 28.33A. This is in theory.
But when you run a load for 24hours every day and in practical considerations this 28A in 12V is not sufficient.
The PSU sizing may be done by making the rated load to 125%.
So, the antminer consumption should be considered as 340*1.25 = 425Watts.
So select a good branded power supply were their +12V single rails is giving at least 425Watts or 35A.

jbmac1967

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Activity: 73

Merit: 10

What sort of power is needed after using the 12V rail calculation

jbmac1967

member

Activity: 73

Merit: 10

After looking at the 12v rail and doing the calculation

What is the minimum power needed to run an s3

jbmac1967

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Activity: 73

Merit: 10

Thanks atomar

So just connect a PSU into each "set" of PCI-E slots on the antminer

Atomar

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S3 does NOT require 4 PCI-E. 2 are OK unless you OC' it

jbmac1967

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Also seen it is advised to connect 4xPCI-E slots to the S3, but most of the PSU i have seen only have 2 PCI-E

Tired searching but there is just SO many pages

Atomar

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You can find good Charts here: https://bitcointalksearch.org/topic/guide-dogies-comprehensive-power-supply-analysis-486121

I just picked up a Corsair CX600M for my S1. On Monday I will use it for the new S3 ...

jbmac1967

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Thanks, so using that formula. What is the minimum watt on the 12v line should be used

philipma1957

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Quote from: jbmac1967 on July 31, 2014, 06:19:03 AM

What is it that determines if the PSU is suitable. Is it the overal wattage,

look at the 12volt rail

Limited Edition GOLD fan version of the Alpine PSU

Features

SLI ready psu with 4 x Sata
Silent 120mm fan with low noise technology <20dBA
Packaged in designer retail box
Quiet fan with thermal control
Black coated casing
24 pin; 4 Pin (12V) (Sleeved) ; 2 x 6 pin PCI-e / SLI ready; 4 x Sata; 3 x 4 pin; 1 x FDD
Cable length 45cm
Meets Intel v2.03 enhanced +12V
230V with rear on/off power down button
Over-voltage and current protection +3.3V;+5V;+12V
100% Burn in and hipot tested; short circuit protection
EMI Filter built in
CE/ FCC/ UL approved
ROHS Compliant
+3.3V 22A; +5V 32A; +12V 34A; -12V 0.5A; +5VSB 2.0A

34 x 12 = 408 watts . At best

I would not use this psu.

jbmac1967

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What is it that determines if the PSU is suitable. Is it the overal wattage,

thehairymob

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Yes, it should power one but you are always best to go for a brand name psu. With a brand name you usually find better components inside as well as better coverage on the warranty.

jbmac1967

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Activity: 73

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Would this cheap PSU power one S1 or S3?
http://www.dabs.com/products/best-value-600w-ps05-alpine-gold-fan-psu-sli---4-x-sata-7JTP.html?refs=55420000&src=3

Topic: Antminer S1 or S3 Power Supply in UK (Read 2923 times)