Supermicro PWS-1K02A-1R User Manual

Supermicro Titanium Power Supply Solution

Summary

Supermicro Green Computing focuses on energy efficiency

at every level, from individual components to architecture
and deployment, helping customers reduce the costliest
capital and operating expenses throughout their data center
ecosystem. With the new 1600W Titanium Level Power Supply,
Supermicro now offers complete server and storage solutions

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with the industry’s highest efficiency rating of 96%
white paper demonstrates that a Supermicro server equipped
with redundant 1600W Titanium Level (96%+) power supplies
can save a data center customer up to $620 in total cost of
ownership(TCO) over a 4-year period.

Introduction

Large scale data centers hosting cloud applications
consume enormous amounts of energy, contributing to high
operational expenses (OpEx) with the need for expensive
cooling equipment to eliminate excess heat (CapEx). Together
this CupEx and OpEx comprise a large portion of the total cost
of ownership (TCO) for data center owners and Supermicro
customers. As energy costs increase, there is a need to shift
focus away from raw data center performance to optimizing
for energy efficiency while maintaining high service level
performance. According to a study by leading consulting

1

firm McKinsey
centers in 2010 was $11.5 billion and energy costs in a typical
data center double every five years. In order to mitigate
this effect, data center owners need to proactively adopt
measures to ensure that TCO does not dramatically increase
due to high energy and capital costs. The key challenge is
to find ways to lower the energy usage of data centers while
simultaneously ensuring that applications and data have
the resources required to enable timely execution. On the
server system technology front, highly efficient power supply
design provides one of the best, most cost effective means of
building a sustainable, high performance and energy efficient
data center with lowest TCO.

, the total estimated energy bill for data

. This

Figure 1 - Supermicro 1600W Power supply
Titanium Level Certied.

Supermicro’s Titanium Level Power Supplies

Supermicro is one of the earliest developers of Titanium Level
power supplies. The 1U Redundant 1600W power supply, PWS­1K68A-1R, is 96.2% efficient, meaning that for every watt use,
up to 96.2% of that watt is available to be used by the server
that it powers. Excellent power supply efficiency is maintained
over various workloads, not just the four points efficiency
measurements required. The efficiency curve of the 1600W
power supply, compared with Gold- and Platinum-rated, is
shown in Figure 2.

Figure 2 - Power Eciency for Gold/Platinum/Titanium Level PSU.

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Data Center Benets when Using Supermicro
Titanium Level Power Supplies

Supermicro Titanium Levelpower supplies easily pay for
thenselves, plus a substantial component of the server they
power, over that regular lifttime of server. The calculation in
Figure 3 demonstrates how, over a 4 year lifetime, a Titanium

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Level PWS-1K68A-1R
50% of 1600W utilization, compared with the Platinum Level
PWS-1K62P-1R

can save up to $620 in energy cost at

3

.

Supermicro Titanium Power Supply Solution

Figure 4 - Data Center Energy Savings at Various Utilization Rates.

Data Center Power Saving Calculation

(Assume server with 2 redundant 1600W power supply modules)

>> Assumes one work load -> 800W net power assumption
(50% of 1600W output power)
>> PWS-1K68A-1R (Titanium Certied PSU): 830.48W input power
(96.3% eciency @ 50% load)
>> PWS-1K62P-1R (Platinum Certied PSU):851.06W input power
(94.0% eciency @ 50% load)
>> Average power saving: 41.6W for 2x PSU
>> Assuming server runtime: 24hours/365.25days
>> Product lifetime: 4 years
>> National average energy cost: $0.1/KWh
>> Assuming Power Usage Eectiveness (PUE): 1.5

41.17W * 24hours * 365.25 days * 4 years * $0.1/1000W *1.5PUE = $216.54

Possible Energy Savings: $620 for 4 Yrs

Figure 3 - Data Center Power Saving Calculation Example.

Applying the same methodology to a different work load, we
can estimate data center energy savings per server. Figure 4
shows the savings when comparing Titanium to Platinum or

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Level power supplies. Maximum savings are achieved

Gold
with a 50% workload.

The Titanium Level power supplies underscore Supermicro’s
overall strategy to provide efficient solutions to the data center
infrastructures. When less energy is wasted within the server,
less energy is consumed in the overall cooling infrastructure.
Heat-loss prevention and minimal cooling are critical to the
goal of increasing the power efficiency and reducing the TCO
of a data center.

Supermicro SuperServer® Solutions with
Titanium Level Power Supplies

With the dimensions of 76mm(W) x 360mm(L) x 40mm(H),
the PWS-1K68A-1R 1600W power supply is compatible with
many existing Supermicro chassis and system products.
It will be integrated into Supermicro’s X10 product line,

TM

including FatTwin

, TwinProTM and power supply Ultra
products. With this highest efficiency, Supermicro’s server
systems will further outperform competitors’ server systems.

Figure 5 - Supermicro FatTwin™ and 2U Twin²®.

Other Supermicro Titanium Level power supplies:

1000W PWS-1K02A-1R (Dimension: 73.5W x 40H x 203L mm)

1000W PWS-1K03A-1R (Dimension: 76W x 40H x 360L mm)

Digital Power Control

Another new feature of the Supermicro PWS-1K68A-1R power
supply is a high-speed digital power controller with adaptive
switching, in place of conventional analog circuitry to generate
PWM control signals. With this new digital control, compensation
and output parameters can be dynamically configured to match
different load conditions resulting in increased efficiency across
a wider range of operation. It provides an additional 5-10%
efficiency gain at light loads, as well as faster transient response
to input AC line voltage fluctuations,

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