StarTech.com ATXPW500PRO2 User manual

Professional ATX Power
Supply
Professional 500W/550W
ATX12V 2.01, EPS Computer
Power Supply
with PCI Express and SATA
ATXPW500PRO2
ATXPW550PRO2
Instruction Manual

FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.•
Increase the separation between the equipment and receiver.•
Connect the equipment into an outlet on a circuit different from that to which the receiver•
is connected.
Consult the dealer or an experienced radio/TV technician for help.•
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only
and do not represent an endorsement of a product or service by StarTech.com, or an
endorsement of the product(s) to which this manual applies by the third-party company
in question. Regardless of any direct acknowledgement elsewhere in the body of
this document, StarTech.com hereby acknowledges that all trademarks, registered
trademarks, service marks, and other protected names and/or symbols contained in this
manual and related documents are the property of their respective holders.

i
Table of Contents
Introduction.................................................................. 1
Packaging Contents ..................................................................................1
System Requirements...............................................................................1
Installation.................................................................... 2
Hardware Installation.................................................................................2
Specifications............................................................... 4
ATXPW500PRO2 Power Output ...............................................................4
ATXPW550PRO2 Power Output ...............................................................5
Connectors................................................................................................5
Technical Support........................................................ 6
Warranty Information................................................... 6

1
Introduction
The StarTech.com ATX12V/EPS12V series of professional power supplies
provide support for both Intel and AMD based CPU designs as well as PCI
Express and SATA devices. With two PCI Express power connectors, even
some higher end graphics cards are supported. Compliant with ATX12V
2.01 and EPS12V 2.92 revision standards, and dual 12V power rails ensures
broad compatibility with a 20/24 pin motherboard connection. Also featuring
an 80mm or 120mm dual ball-bearing fan and Quad+1 protection against
short-circuit, over-power, over-voltage and no-load situations ensures stable
power delivery.
Packaging Contents
1 x ATX Power Supply•
1 x Power Cord•
1 x Instruction Manual•
System Requirements
ATX compliant motherboard•
ATX compliant computer case that fits a full sized power supply•

2
Installation
WARNING! Computer parts can be severely damaged by static electricity.
Be sure that you are properly grounded before opening your computer case.
StarTech.com recommends that you wear an anti-static strap when installing
any computer component. If an anti-static strap is unavailable, discharge
yourself of any static electricity build-up by touching a large grounded metal
surface (such as the computer case) for several seconds.
Installation of a power supply requires some mechanical skill and requires
that you open your computer case to disconnect and reconnect wires. If you
are unfamiliar with this kind of work, consider bringing your computer and
new StarTech.com power supply to your local computer store for help.
Hardware Installation
Turn your computer off and any peripherals connected to the computer (i.e.1.
printers, external hard drives, etc.).
If the power supply has a power switch on it, set it to the “0” position.2.
Unplug the power cable from the rear of the power supply on the back of
the computer and disconnect all other peripheral cables.
Remove the cover from the computer case. Refer to documentation for3.
your computer system for details.
Disconnect all of the power connectors from the motherboard and4.
peripheral devices (i.e. hard drives, CD/DVD drives, etc). Make sure to take
note of each connector and where they were plugged in. Ensure there are
no devices connected to the existing power supply.
Remove the existing power supply from the computer case. This is typically5.
done by removing four (4) mounting screws on the outside face of the
power supply. Refer to documentation for your computer system/case for
specifics.
Install and mount the new power supply by reversing the steps used to6.
remove the old power supply.

3
Connect the power connectors from the power supply to the motherboard7.
and peripheral devices that were disconnected previously. Note that
this power supply uses a 20+4 pin ATX connector, so it can be used on
motherboards with either a 20-pin or 24-pin connector. Simply detach the
extra 4-pin attachment for use on 20-pin motherboards.
NOTE: the detached 4-pin connector cannot be used in place of the 4-pin
ATX12V (P4) connector.
Make sure any loose or unused cables from the power supply are away8.
from fans and other moving parts.
Place the cover back onto the computer case.9.
Make sure the power switch on the power supply is set to “0”, then insert10.
the power cable into the socket on the power supply. If the old power cable
looks worn or damaged in any way, replace with the supplied power cable,
otherwise it is safe to reuse it.
Reconnect all other connectors/cables that were removed in Step 2. Set11.
the power switch on the power supply to “1”.

4
Specications
ATXPW500PRO2 ATXPW550PRO2
Standards ATX12V 2.01
EPS12v 2.92
Maximum Power
Output 500W 550W
Efficiency Rating 72% (typical load)
Fans 1 x 80mm 1 x 120mm
Input Power
100 ~ 120VAC, 10A
200 ~ 240VAC,5.5A
47 ~ 63Hz
100 ~ 120VAC, 12A
200 ~ 240VAC, 6A
47 ~ 63Hz
MTBF 100, 000
Operating
Temperature 0°C ~ 40°C (32°F ~ 104°F)
Storage Temperature -20°C ~ 80°C (-4°F ~ 176°F)
Humidity 10 ~ 90% RH
Dimensions (LxWxH) 140.0mm x 150.0mm x 86.0mm
Weight 1800g 1830g
ATXPW500PRO2 Power Output
DC
Output
+3.3V +5V +12V1 +12V2 -12V +5Vsb
30A 45A 18A 16A 1A 2.5A
Max
Power
275W 380W 12W 12.5W
475.5W

5
ATXPW550PRO2 Power Output
DC
Output
+3.3V +5V +12V1 +12V2 -12V +5Vsb
30A 50A 18A 18A 1A 2.5A
Max
Power
300W 420W 12W 12.5W
525.5W
Connectors
1xATX 20+4 pin 1x4+4 pin ATX12V
(8-pin EPS12V)
2x6-pin PCI Express 5x15-pin SATA (ATXPW500PRO2)
7x15-pin SATA (ATXPW550PRO2)
5x4-pin Molex Power (LP4) 2x4-pin Mini-Power (SP4)
*photos are for reference purposes
1 x 3-pin Fan (TX3)

6
Technical Support
StarTech.com’s lifetime technical support is an integral part of our
commitment to provide industry-leading solutions. If you ever need
help with your product, visit www.startech.com/support and access
our comprehensive selection of online tools, documentation, and
downloads.
Warranty Information
This product is backed by a three year warranty.
In addition, StarTech.com warrants its products against defects in
materials and workmanship for the periods noted, following the initial
date of purchase. During this period, the products may be returned
for repair, or replacement with equivalent products at our discretion.
The warranty covers parts and labor costs only. StarTech.com does
not warrant its products from defects or damages arising from misuse,
abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA
LLP (or their officers, directors, employees or agents) for any damages
(whether direct or indirect, special, punitive, incidental, consequential, or
otherwise), loss of profits, loss of business, or any pecuniary loss, arising
out of or related to the use of the product exceed the actual price paid
for the product. Some states do not allow the exclusion or limitation of
incidental or consequential damages. If such laws apply, the limitations
or exclusions contained in this statement may not apply to you.

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