ASROCK 1012LW-C2750 User manual

Version 1.0
Published December 2013
Copyright©2013 ASRockRack Inc. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRockRack Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished
for informational use only and subject to change without notice, and should
not be constructed as a commitment by ASRockRack. ASRockRack assumes no
responsibility for any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRockRack does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRockRack, its directors, ocers, employees, or agents be liable
for any indirect, special, incidental, or consequential damages (including damages
for loss of prots, loss of business, loss of data, interruption of business and the
like), even if ASRockRack has been advised of the possibility of such damages
arising from any defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRockRack’s Website: www.ASRockRack.com

Setting up the Server in a Restricted Access Location
• Access can only be gained by service persons or by users who have been instructed
about the reasons for the restrictions applied to the location and about any precautions
that shall be taken.
• Access is through the use of a tool or lock and key, or other means of security, and is
controlled by the authority responsible for the location.
• Leave enough clearance (25 inches in the front and 30 inches in the back of the rack) to
allow the front door to be opened completely and to allow for sucient airow.
• is product is for installation merely in a Restricted Access Location.
• is product is not suitable for use with visual display work place devices according to §2
of the the German Ordinance for Work with Visual Display Units.
Replaceable Batteries
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS

Important Safety Instructions
Pay close attention to the following safety instructions before performing any of
the operation. Basic safety precautions should be followed to protect yourself from
harm and the product from damage:
• Operation of the product should be carried out by suitably trained, qualied, and
certied personnel only to avoid risk of injury from electrical shock or energy hazard.
• Disconnect the power cord from the wall outlet when installing or removing main
system components, such as the motherboard and power supply unit.
• Place the system on a stable and at surface.
• Use extreme caution when working with high-voltage components.
• When handling parts, use a grounded wrist strap designed to prevent static discharge.
• Keep the area around the system clean and clutter-free.
• Keep all components and printed circuit boards (PCBs) in their antistatic bags when
not in use.
• Handle a board by its edges only; do not touch its components, peripheral chips,
memory modules or contacts.

Contact Information
If you need to contact ASRockRack or want to know more about ASRockRack,
you’re welcome to visit ASRockRack’s website at www.ASRockRack.com; or you
may contact your dealer for further information.
ASRockRack Incorporation
6F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,
Taipei City 112, Taiwan (R.O.C.)

Contents
Chapter 1 Introduction 1
1.1 Shipping Box Contents 1
1.2 Specications 2
Chapter 2 Server System Overview 3
2.1 System Components 3
2.2 Cable Connections 4
2.3 System Front Panel 6
2.4 System Rear Panel 6
2.5 Front Control Panel Buttons and LEDs 7
Chapter 3 Hardware Installation and Maintenance 9
3.1 Server Top Cover 10
3.2 Hard Drive 12
3.3 Power Supply 17
3.4 Add-on Card 18
3.5 System Fan 19
3.6 Backplane 20
3.7 Server Board 21
3.8 Chassis Cables 22
Chapter 4 Backplane Specications 26
Appendix A Installing the Server in a Rack 30

1 PB
English
Chapter 1 Introduction
ank you for purchasing 1U12L Series, a reliable barebone system produced
under ASRockRack’s consistently stringent quality control. It delivers excellent
performance with robust design conforming to ASRockRack’s commitment to
quality and endurance.
1.1 Shipping Box Contents
• 1U12L Series Barebone (1U form factor)
• System Board
• Power Supply Unit (pre-installed)
• System Fans x 5 (pre-installed)
• HDD Backplanes x 3 (pre-installed)
• Front Panel Board x1 (pre-installed)
• Chassis Cables*
• Screws x 74
• User Manual
• Quick Installation Guide
* Type and quantity may vary depending on the server board that comes with your system.
Because the hardware specications might be updated, the content of this documentation
will be subject to change without notice. In case any modications of this documentation
occur, the updated version will be available on ASRockRack’s website without further
notice. If you require technical support related to this product, please visit our website for
specic information about the model you are using.
ASRockRack’s Website: www.ASRockRack.com
e illustrations shown in this manual are examples only, the actual system may dier
slightly .
If any items are missing or appear damaged, contact your authorized dealer.

2 PB
English
1.2 Specications
1U12L Series
System Physical Status
Form Factor 1U Rackmount
Dimension
(D x W x H)
31.9" x 16.9" x 1.7" (810 X 430 X 43.5 mm)
Support MB Size Extend Mini ITX
Front Panel
Buttons • Power On/Standby button
• UID button*
• System reset button
• NMI button*
LEDs • Power LED
• Identication LED*
• Hard drive activity LED*
• 2x Network activity LEDs*
I/O Ports 2 x USB 2.0 ports
Drive Bay
Internal • 12 x 3.5" SATA HDDs (6Gb/s)
• 2 x 2.5" SATA HDDs (6Gb/s)*
System Cooling
Fan 6 x 40*56mm system fans
Power Supply
Capacity 1U, Single
Output Watts 250 W Bronze/ 450 W Gold*
*Please be noted that the functions are supported depending on the type of the server board.

3 PB
English
Chapter 2 Server System Overview
is chapter provides diagrams showing the location of important components of
the server system.
2.1 System Components
Power Supply Unit
12 x 3.5” HDD Carriers
2 x 2.5” HDD Carriers
5 x System Fans
Front Controls and Indicators
Top Cover
Server Board

4 PB
English
2.2 Cable Connections
1
2
5 6 78 9
34
11 12 13 14
16 17 18 19
21 22 23 24
10
15
20
25

5 PB
English
No. From To Cable*
12.5" HDD 1 SB / PSU Power supply cable
22.5" HDD 2 SB / PSU Power supply cable
3Server Board (SB)
4Power Supply Unit (PSU) SB / BP1~3 Power supply cables
5System Fan 5 SB Fan cable
6System Fan 4 SB Fan cable
7System Fan 3 SB Fan cable
8System Fan 2 SB Fan cable
9System Fan 1 SB Fan cable
10 HDD Backplane 1 (BP1) SB
PSU
MiniSAS to SATA cable 1
Power supply cables
11 3.5" HDD 0 BP1 N/A
12 3.5" HDD 1 BP1 N/A
13 3.5" HDD 2 BP1 N/A
14 3.5" HDD 3 BP1 N/A
15 HDD Backplane 2 (BP2) SB
PSU
MiniSAS to SATA cable 2
Power supply cables
16 3.5" HDD 4 BP2 N/A
17 3.5" HDD 5 BP2 N/A
18 3.5" HDD 6 BP2 N/A
19 3.5" HDD 7 BP2 N/A
20 HDD Backplane 3 (BP3) SB
PSU
MiniSAS to SATA cable 3
Power supply cables
21 3.5" HDD 8 BP3 N/A
22 3.5" HDD 9 BP3 N/A
23 3.5" HDD 10 BP3 N/A
24 3.5" HDD 11 BP3 N/A
25 Front Panel Board (FPB) SB Front panel cable
USB cable
*Only supplied cables are mentioned in this table.
Conenctions and cable routing may dier depending on various server boards. Please refer
to the Quick Installation Guide to know the exact headers or cables to be connected on the
server board you purchase. For more detailed information about server board components,
refer to the manual that comes with your server board.

6 PB
English
2.3 System Front Panel
12
No. Description
1 2 x USB 2.0 Ports
2 Control Panel Buttons and LEDs
2.4 System Rear Panel
1234
No. Description
1 Power Supply Unit
2 I/O Shield (depends on the specication of the server board)
3Rear Vent
4 1 x PCI Express Slot (for the riser card)

7 PB
English
2.5 Front Control Panel Buttons and LEDs
Front Control Panel
NMI RST L1 L2 UID
12
6
5
34
No. Description
1 NMI (Nonmaskable Interrupt) Button*
2 System Reset Button
3 LAN1, LAN2 Activity LED*
4 HDD Status LED*
5 UID Button and LED*
6 Power Button and LED
*Please be noted that the functions are supported depending on the type of the server board.
NMI (Nonmaskable Interrupt) Button
Press the NMI button with a paper clip or pin to generate a nonmaskable interrupt and to
put the server in a halt state for examination.
System Reset Button
When the system is completely unresponsive, press the system reset button to reboot the
server without shutting it o and initialize the system.
UID Button
Press the UID button to toggle the front panel UID LED and the baseboard UID LED on
and o. You are able to locate the server you’re working on from behind a rack of servers.
Power Button
Press the power switch button to toggle the system power on and standby/sleep modes.
To remove all power from the system completely, disconnect the power cord from the
server.

8 PB
English
Status LED Denitions
Power LED
Status Description
Green Power on
Blinking Green Standby(Sleep) mode
O Power o
UID LED
Status Description
Blue System identication is active.
O System identication is disabled.
HDD Status LED
Status Description
Green HDD access
O HDD idle
LAN1, LAN2 LED
Status Description
Green Link between system and network or no access
Blinking Green Network access

9 PB
English
Chapter 3 Hardware Installation and
Maintenance
is chapter helps you assemble the chassis and install components.
Before You Begin
Before you work with the server, pay close attention to the “Important Safety Instructions”
at the beginning of this manual.
1. Make sure the server is powered o.
Power down the server if it is still running.
(1) Press the Power button to power o the server from full-power mode to standby-
power (sleep) mode. e Power LED at the front turns from solid green to blinking
green.
(2) Disconnect the power cord rst from the AC outlet and then from the server.
e power LED turns o.
2. Ensure you have a clean and stable working environment. Avoid dust and dirt because
contaminants may cause malfunctions.
3. Ground yourself properly before touching any system component. A discharge of static
electricity may damage components. Wear a grounded wrist strap if available.
Installing Procedures
e followings are prerequisite to be installed.
• 3.5" or 2.5" HDD(s)
• Power Supply (Pre-installed)
• Server Board (Pre-installed)
• Fans (Pre-installed)
• HDD Backplanes (Pre-installed)
An add-on card is optional to be installed when you have a riser board intalled on your
server board.
e server is not completely powered down when you press the Power button on the front
panel. e Power button lets the server toggle between Power On and Standby (Sleep)
modes. Some internal circuitry remain active in the Standby mode. To remove all power
from the system completely, be sure to disconnect the power cord from the server.
1. Some components are already pre-installed. Simply properly connect the relavant cables
before or aer installation. See the Quick Installation Guide for more details.
2. Refer to the user manual of the server board you use for instructions on how to install
server board components.

10 PB
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3.1 Server Top Cover
Removing the Server Top Cover
1
1
1
1
1
1
2
3
1. Remove the six screws that secure the top cover to the chassis.
2. Push the top cover toward the rear of the chassis to remove the cover from the locked
position.
3. Li up and remove the top cover.
1. Before removing the top cover, power o the server and unplug the power cord.
2. e system must be operated with the chassis top cover installed to ensure proper cooling.

11 PB
English
Installing the Server Top Cover
3
3
3
3
3
3
2
1
1. Lower the top cover on the chassis, making sure the side latches align with the cutouts.
2. Slide the top cover toward the front.
3. Secure the top cover with the six screws.

12 PB
English
3.2 Hard Drive
3.2.1 Installing a Hard Disk Drive into 3.5" Hard Drive Carrier
is system allows the routing of cables behind the HDD base plate and carriers. Be sure to
connect all required cables rst before installing any of the 3.5” HDDs. Meanwhile, please
well organize your cables and be careful with your cable routing. You can refer to the Quick
Installation Guide for more information.
Removing a 3.5” Hard Drive Carrier from the Chassis
1. Release the thumb screw that secures the hard drive carrier to the base plate.
2. Li up and remove the carrier from the base plate.
1
2
Base Plate
3.5” HDD Carrier

13 PB
English
Installing a 3.5” Hard Drive to the Hard Drive Carrier
1. Place the 3.5" HDD into the carrier with the printed circuit board side facing down.
Carefully align the mounting holes in the hard drive and the carrier.
2. Secure the hard drive using the four screws.
3. Place the hard drive carrier on the base plate with the thumb screw facing the front of the
chassis.
4. Align the keyhole openings on the base with the locating pins on the bottom of the
hard drive carrier. Pull the hard drive carrier toward the rear of the chassis until the
carrier clips.
5. Tighten the thumb screw on the carrier to secure the hard drive carrier to the base
plate.
12
3
5
4

14 PB
English
Removing a Hard Disk Drive Base Plate from the Chassis
Organize your cables and place them under the hard drive base plates before installing 3.5"
HDDs.
1. Remove the screws that secure the hard drive base plate.
1
1
1
1