Lenovo NeXtScale n1200 Installation and maintenance instructions

Lenovo NeXtScale n1200 Enclosure
Installation and Service Guide
Machine Type: 5456

Note
Before using this infor ation and the product it supports, read the general infor ation in Appendix B
“Getting help and technical assistance” on page 123, Appendix C “Notices” on page 127, the Warranty
Information docu ent, and the Safety Information and Environmental Notices and User Guide docu ents on
the IBM Documentation CD.
Sixth Edition (April 2017)
© Copyright enovo 2017.
IMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925

Contents
Safety . . . . . . . . . . . . . . . . . . iii
Safety state ents . . . . . . . . . . . . . . . iv
Chapter 1. The NeXtScale n1200
Enclosure Type 5456 . . . . . . . . . . . 1
The Docu entation CD. . . . . . . . . . . . . 3
Hardware and software require ents . . . . . 3
The Docu entation Browser . . . . . . . . . 3
Related docu entation . . . . . . . . . . . . . 4
Brocade docu entation . . . . . . . . . . . . 5
Notices and state ents in this docu ent . . . . . . 5
Features and specifications . . . . . . . . . . . 6
Major chassis co ponents . . . . . . . . . . . 9
Front view . . . . . . . . . . . . . . . . 9
Rear view . . . . . . . . . . . . . . . 10
Chapter 2. Error messages . . . . . . 17
Chapter 3. Parts listing, NeXtScale
n1200 Enclosure Type 5456 . . . . . . 19
Replaceable server co ponents . . . . . . . . 19
Structural parts . . . . . . . . . . . . . 21
Power cords . . . . . . . . . . . . . . . . 22
Chapter 4. Removing and replacing
components . . . . . . . . . . . . . . 25
Installation guidelines . . . . . . . . . . . . 25
Syste reliability guidelines . . . . . . . . 26
Handling static-sensitive devices . . . . . . 27
Returning a device or co ponent . . . . . . 27
Re oving and replacing structural parts . . . . . 27
Re oving the shipping bracket . . . . . . . 27
Replacing the shipping bracket . . . . . . . 28
Re oving and replacing Tier 1 CRUs . . . . . . 29
Re oving a 1-bay co pute node . . . . . . 30
Replacing a 1-bay co pute node . . . . . . 30
Re oving a fan odule . . . . . . . . . . 31
Replacing a fan odule . . . . . . . . . . 32
Re oving the fan power control . . . . . . 33
Replacing an fan power control . . . . . . . 34
Re oving the battery fro the fan power
control . . . . . . . . . . . . . . . . 35
Replacing the battery in the fan power
control . . . . . . . . . . . . . . . . 37
Re oving the USB flash drive . . . . . . . 39
Installing the USB flash drive . . . . . . . . 39
Re oving a hot-swap DC power supply . . . 40
Replacing a hot-swap DC power supply . . . 43
Re oving an AC power supply . . . . . . . 48
Replacing an AC power supply . . . . . . . 49
Re oving and replacing FRUs . . . . . . . . . 57
Re oving the chassis idplane. . . . . . . 57
Replacing the chassis idplane. . . . . . . 60
Chapter 5. Using the web
interface . . . . . . . . . . . . . . . . 65
Starting the web interface . . . . . . . . . . . 65
Resetting the FPC to anufacturing defaults . . . 65
Chapter 6. Web interface options . . . 67
Su ary options . . . . . . . . . . . . . . 67
Power options . . . . . . . . . . . . . . . 68
Cooling options . . . . . . . . . . . . . . . 71
Syste infor ation options . . . . . . . . . . 73
Events log options. . . . . . . . . . . . . . 74
Configuration options . . . . . . . . . . . . 75
Appendix A. Fan power control (FPC)
error codes. . . . . . . . . . . . . . . 85
List of fan power control (FPC) error codes . . . . 86
Appendix B. Getting help and
technical assistance . . . . . . . . . . 123
Before you call . . . . . . . . . . . . . . . 123
Using the docu entation . . . . . . . . . . . 124
Getting help and infor ation fro the World Wide
Web . . . . . . . . . . . . . . . . . . . 124
How to send DSA data to Lenovo . . . . . . . . 124
Creating a personalized support web page . . . . 124
Software service and support . . . . . . . . . 124
Hardware service and support . . . . . . . . . 125
Taiwan product service . . . . . . . . . . . . 125
Appendix C. Notices. . . . . . . . . . 127
Trade arks . . . . . . . . . . . . . . . . 127
I portant notes . . . . . . . . . . . . . . . 128
Recycling infor ation . . . . . . . . . . . . 128
Particulate conta ination . . . . . . . . . . . 129
Teleco unication regulatory state ent . . . . . 130
Electronic e ission notices . . . . . . . . . . 130
Federal Co unications Co ission (FCC)
state ent . . . . . . . . . . . . . . . 130
Industry Canada Class A e ission co pliance
state ent . . . . . . . . . . . . . . . 130
© Copyright Lenovo 2017 i

Avis de confor ité à la régle entation d'Industrie
Canada . . . . . . . . . . . . . . . . 130
Australia and New Zealand Class A
state ent . . . . . . . . . . . . . . . 130
European Union EMC Directive confor ance
state ent . . . . . . . . . . . . . . . 130
Ger any Class A state ent . . . . . . . . 131
Japanese electro agnetic co patibility
state ents . . . . . . . . . . . . . . . 132
Korea Co unications Co ission (KCC)
state ent . . . . . . . . . . . . . . . 132
Russia Electro agnetic Interference (EMI)
Class A state ent . . . . . . . . . . . . 133
People's Republic of China Class A electronic
e ission state ent . . . . . . . . . . . 133
Taiwan Class A co pliance state ent . . . . 133
Taiwan BSMI RoHS declaration . . . . . . . 134
Appendix D. German Ordinance for
Work gloss statement . . . . . . . . . 135
Index . . . . . . . . . . . . . . . . . . 137
ii Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

Safety
Before installing this product, read the Safety Infor ation.
Antes de instalar este produto, leia as Infor ações de Segurança.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tä än tuotteen, lue turvaohjeet kohdasta Safety Infor ation.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Pri a di installare questo prodotto, leggere le Infor azioni sulla Sicurezza.
Les sikkerhetsinfor asjonen (Safety Infor ation) før du installerer dette produktet.
Antes de instalar este produto, leia as Infor ações sobre Segurança.
© Copyright Lenovo 2017 iii

Antes de instalar este producto, lea la infor ación de seguridad.
Läs säkerhetsinfor ationen innan du installerar den här produkten.
Safety statements
These state ents provide the caution and danger infor ation that is used in this docu entation.
Important: Each caution and danger state ent in this docu entation is labeled with a nu ber. This nu ber
is used to cross reference an English-language caution or danger state ent with translated versions of the
caution or danger state ent in the Safety Information docu ent.
For exa ple, if a caution state ent is labeled Statement 1, translations for that caution state ent are in the
Safety Information docu ent under Statement 1.
Be sure to read all caution and danger state ents in this docu entation before you perfor the procedures.
Read any additional safety infor ation that co es with your syste or optional device before you install the
device.
Statement 1
iv Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded electrical outlet.
• Connect to properly wired outlets any equipment that will be attached to this product.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached power cords, telecommunications systems, networks, and modems
before you open the device covers, unless instructed otherwise in the installation and
configuration procedures.
• Connect and disconnect cables as described in the following table when installing, moving, or
opening covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, re ove power cords fro outlet.
3. Re ove signal cables fro connectors.
4. Re ove all cables fro devices.
Statement 2
CAUTION:
When replacing the lithium battery, use only Part Number 33F8354 or an equivalent type battery
recommended by the manufacturer. If your system has a module containing a lithium battery, replace
it only with the same module type made by the same manufacturer. The battery contains lithium and
can explode if not properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Statement 3
CAUTION:
© Copyright Lenovo 2017 v

When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following.
aser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
Statement 4
CAUTION: Use safe practices when lifting.
≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)
Statement 5
vi Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
1
2
Statement 6
CAUTION:
If you install a strain-relief bracket option over the end of the power cord that is connected to the
device, you must connect the other end of the power cord to an easily accessible power source.
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with one
of these parts, contact a service technician.
Statement 12
CAUTION:
The following label indicates a hot surface nearby.
© Copyright Lenovo 2017 vii

Statement 26
CAUTION:
Do not place any object on top of rack-mounted devices.
Statement 27
CAUTION:
Hazardous moving parts are nearby.
Statement 31
viii Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded power source.
• Connect to properly wired power sources any equipment that will be attached to this product.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached ac power cords, dc power sources, network connections,
telecommunications systems, and serial cables before you open the device covers, unless you
are instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when you install, move, or
open covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn OFF all power sources and equip ent that is to
be attached to this product.
2. Attach signal cables to the product.
3. Attach power cords to the product.
• For ac syste s, use appliance inlets.
• For dc syste s, ensure correct polarity of -48 V dc
connections: RTN is + and -48 V dc is -. Earth
ground should use a two-hole lug for safety.
4. Attach signal cables to other devices.
5. Connect power cords to their sources.
6. Turn ON all the power sources.
1. Turn OFF all power sources and equip ent that is to
be attached to this product.
• For ac syste s, re ove all power cords fro the
chassis power receptacles or interrupt power at
the ac power distribution unit.
• For dc syste s, disconnect dc power sources at
the breaker panel or by turning off the power
source. Then, re ove the dc cables.
2. Re ove the signal cables fro the connectors.
3. Re ove all cables fro the devices.
Statement 34
CAUTION:
To reduce the risk of electric shock or energy hazards:
• This equipment must be installed by trained service personnel in a restricted-access location, as
defined by the NEC and IEC 60950-1, First Edition, The Standard for Safety of Information
Technology Equipment.
• Connect the equipment to a properly grounded safety extra low voltage (SE V) source. A SE V
source is a secondary circuit that is designed so that normal and single fault conditions do not
cause the voltages to exceed a safe level (60 V direct current).
• Incorporate a readily available approved and rated disconnect device in the field wiring.
• See the specifications in the product documentation for the required circuit-breaker rating for
branch circuit overcurrent protection.
© Copyright Lenovo 2017 ix

• Use copper wire conductors only. See the specifications in the product documentation for the
required wire size.
• See the specifications in the product documentation for the required torque values for the wiring-
terminal screws.
Statement 36:
CAUTION:
Always install the slide retention screw.
Rack Safety Information, Statement 2
DANGER
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet.
• Always install servers and optional devices starting from the bottom of the rack cabinet.
• Always install the heaviest devices in the bottom of the rack cabinet.
xLenovo NeXtScale n1200 Enclosure Installation and Service Guide

Chapter 1. The NeXtScale n1200 Enclosure Type 5456
The NeXtScale n1200 Enclosure Type 5456 chassis is a 6U next-generation server platfor with integrated
fan power control. It is a co pact, high-density, high-perfor ance, rack- ounted, scalable server platfor
syste .
The NeXtScale n1200 Enclosure Type 5456 chassis has twelve node bays. A 1-bay co pute node occupies
one node bay in the chassis. A 2-bay storage tray or GPU tray occupies two node bays in the chassis. The
nodes share co on resources, such as power and cooling in the chassis.
The NeXtScale n1200 Enclosure can support the following co ponents:
• Up to twelve 1-bay co pute nodes.
• Up to six power supplies.
• Ten fan odules.
• One fan power control.
The chassis syste provides the following features:
• Compute node expansion capabilities
You can install up to twelve 1-bay co pute nodes in the chassis. So e co pute nodes have connectors
for additional optional devices that you can use to add capabilities to the co pute nodes.
• High-availability design
The following co ponents in the chassis enable continued operation if one of the co ponents fails:
– Power supplies
The power supplies support a single power do ain that provides power to all of the chassis
co ponents. If a power supply fails, the other power supplies can continue to provide power. The PSU
Redundancy ode that you have applied for the chassis deter ines the result of a power-supply
failure.
– Fan modules
The fan odules provide cooling to all of the chassis co ponents and the power supplies have their
own fans to provide the cooling.
– Fan power control
The fan power control enables the Integrated Manage ent Module to onitor the fans and control fan
speed.
• Chassis midplane
The chassis idplane provides the following features:
– Power distribution to all nodes and odules
The idplane provides hot-swap connectors for the following co ponents:
– Twelve 1-bay co pute nodes
– Six power supplies
– Ten fan odules
– Fan power control
Record infor ation about the NeXtScale n1200 Enclosure in the following table. You will need this
infor ation for future reference.
© Copyright Lenovo 2017 1

Product name Machine Type (s) Model number Serial number
NeXtScale n1200
Enclosure
5456
The serial nu ber and odel nu ber are on the top, front, and rear of the chassis. The following illustration
shows the location of the label on the front of the chassis.
Figure 1. T e location of t e serial number and model number
If the chassis co es with an RFID tag, it is attached to the upper-left corner of the bezel. The following
illustration shows the location of the RFID tag on the front of the chassis.
2Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

Figure 2. T e location of t e C assis RFID tag
The Documentation CD
The Documentation CD contains docu entation for the server in Portable Docu ent For at (PDF) and
includes the Docu entation Browser to help you find infor ation quickly.
Hardware and software requirements
The hardware and software require ents of the Documentation CD.
The Documentation CD requires the following ini u hardware and software:
• Microsoft Windows or Red Hat Linux
• 100 MHz icroprocessor
• 32 MB of RAM
• Adobe Acrobat Reader 3.0 (or later) or xpdf, which co es with Linux operating syste s
The Documentation Browser
Use the Docu entation Browser to browse the contents of the CD, read brief descriptions of the docu ents,
and view docu ents, using Adobe Acrobat Reader or xpdf.
The Docu entation Browser auto atically detects the regional settings in use in your server and displays the
docu ents in the language for that region (if available). If a docu ent is not available in the language for that
region, the English-language version is displayed. Use one of the following procedures to start the
Docu entation Browser:
Chapter 1.The NeXtScale n1200 Enclosure Type 5456 3

• If Autostart is enabled, insert the CD into the CD or DVD drive. The Docu entation Browser starts
auto atically.
• If Autostart is disabled or is not enabled for all users, use one of the following procedures:
– If you are using a Windows operating syste , insert the CD into the CD or DVD drive and click Start ➙
Run. In the Open field, type:
e:\win32.bat
where e is the drive letter of the CD or DVD drive, and click OK.
– If you are using Red Hat Linux, insert the CD into the CD or DVD drive; then, run the following
co and fro the /mnt/cdrom directory:
sh runlinux.sh
Select the server fro the Product enu. The Available Topics list displays all the docu ents for the
server. So e docu ents ight be in folders. A plus sign (+) indicates each folder or docu ent that has
additional docu ents under it. Click the plus sign to display the additional docu ents.
When you select a docu ent, a description of the docu ent is displayed under Topic Description. To select
ore than one docu ent, press and hold the Ctrl key while you select the docu ents. Click View Book to
view the selected docu ent or docu ents in Acrobat Reader or xpdf. If you selected ore than one
docu ent, all the selected docu ents are opened in Acrobat Reader or xpdf.
To search all the docu ents, type a word or word string in the Search field and click Search. The
docu ents in which the word or word string appears are listed in order of the ost occurrences. Click a
docu ent to view it, and press Crtl+F to use the Acrobat search function, or press Alt+F to use the xpdf
search function within the docu ent.
Click Help for detailed infor ation about using the Docu entation Browser.
Related documentation
This Installation and Service Guide contains general infor ation about the NeXtScale n1200 Enclosure Type
5456 chassis including infor ation to help you solve proble s yourself and instructions for re oving and
installing co ponents, and it contains infor ation for service technicians.
The following docu entation is also available:
• Warranty Information
This docu ent is in printed for at and co es with the server. It contains warranty ter s and a pointer to
the State ent of Li ited Warranty on the website.
• Important Notices
This docu ent is in printed for at and co es with the server. It contains infor ation about the safety,
environ ental, and electronic e ission notices for your product.
• Environmental Notices and User Guide
This docu ent is in PDF for at on the Documentation CD. It contains translated environ ental notices.
• License Agreement for Mac ine Code
This docu ent is in PDF on the Documentation CD. It provides translated versions of the License
Agreement for Mac ine Code for your product.
• Licenses and Attributions Document
This docu ent is in PDF on the Documentation CD. It provides the open source notices.
• Safety Information
4Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

This docu ent is in PDF on the Documentation CD. It contains translated caution and danger state ents.
Each caution and danger state ent that appears in the docu entation has a nu ber that you can use to
locate the corresponding state ent in your language in the Safety Information docu ent.
• Rack Installation Instructions
This printed docu ent contains instructions for installing the server in a rack.
Depending on the server odel, additional docu entation ight be included on the Documentation CD.
The ToolsCenter for Syste x and BladeCenter is an online infor ation center that contains infor ation
about tools for updating, anaging, and deploying fir ware, device drivers, and operating syste s. The
ToolsCenter for Syste x and BladeCenter is at https://support.lenovo.co /us/en/ docu ents/LNVO-
CENTER.
The server ight have features that are not described in the docu entation that you received with the server.
The docu entation ight be updated occasionally to include infor ation about those features, or technical
updates ight be available to provide additional infor ation that is not included in the server docu entation.
These updates are available fro the website. To check for updates, go to http://www.lenovo.co /support.
Brocade documentation
Use this infor ation to identify and locate related Brocade docu entation.
The following section introduces Brocade docu ents that you ight find useful for the installation and
ad inistration.
• EN4023 User Guide
– Network OS Layer 2 Switc ing Configuration Guide - http://www.brocade.co /content/ht l/en/
configuration-guide/nos-601a-l2guide/
– Network OS Command Reference Guide - http://www.brocade.co /content/ht l/en/co and-
reference-guide/nos-601a-co andref/index.ht l
– Network OS Message Reference - http://www.brocade.co /content/ht l/en/ essage-reference-
guides/nos-601a- essageref/wwhelp/ wwhi pl/js/ht l/wwhelp.ht
• FC5022 User Guide
– Fabric OS Administrator's Guide - http://www.brocade.co /content/ht l/en/ad inistration-guide/fos-
740-ad inguide/
– Fabric OS Command Reference - http://www.brocade.co /content/ht l/en/co and-reference-
guide/fos-741-co andref/wwhelp/ wwhi pl/js/ht l/wwhelp.ht
– Fabric OS Message Reference - http://www.brocade.co /content/ht l/en/ essage-reference-guides/
FOS_740_MESSAGES/wwhelp/ wwhi pl/js/ht l/wwhelp.ht #href=Title.1.2.ht l
– Access Gateway Administrator's Guide - http://www.brocade.co /content/ht l/en/ad inistration-
guide/fos-740-accessgateway/index.ht l
Notices and statements in this document
The caution and danger state ents in this docu ent are also in the ultilingual Safety Information
docu ent, which is on the Documentation CD. Each state ent is nu bered for reference to the
corresponding state ent in your language in the Safety Information docu ent.
The following notices and state ents are used in this docu ent:
• Note: These notices provide i portant tips, guidance, or advice.
Chapter 1.The NeXtScale n1200 Enclosure Type 5456 5

• Important: These notices provide infor ation or advice that ight help you avoid inconvenient or
proble situations.
• Attention: These notices indicate potential da age to progra s, devices, or data. An attention notice is
placed just before the instruction or situation in which da age ight occur.
• Caution: These state ents indicate situations that can be potentially hazardous to you. A caution
state ent is placed just before the description of a potentially hazardous procedure step or situation.
• Danger: These state ents indicate situations that can be potentially lethal or extre ely hazardous to you.
A danger state ent is placed just before the description of a potentially lethal or extre ely hazardous
procedure step or situation.
Features and specifications
Use this infor ation for an overview of the chassis features and specifications.
The following infor ation is a su ary of the features and specifications of the chassis. Depending on the
odel, so e features ight not be available, or so e specifications ight not apply.
Node bays (on front):
The chassis has twelve node bays.
Module bays (on rear):
• Six hot-swap power-supply bays
• Ten hot-swap fan bays
Cooling:
Supports ten hot-swap fan odules.
Upgradeable microcode:
Microcode is upgradeable when fixes or features are added.
• Co pute node fir wares
• FPC fir ware
Power supplies:
• Supports six hot-swap AC and DC power supplies
– 900-watt AC
– 1300-watt AC platinu
– -48V 900-watt DC
Notes:
• Power supplies in the chassis ust be with the sa e input voltage range, power rating, and
certification category.
• 1300-watt power supplies support high-line Vin (AC 200V – 240V) only.
Electrical input:
• Sine-wave input (50/60 Hz) required
• Input voltage low range:
– Mini u : 100 V AC
– Maxi u : 127 V AC
• Input voltage high range:
6Lenovo NeXtScale n1200 Enclosure Installation and Service Guide

– Mini u : 200 V AC
– Maxi u : 240 V AC
• Input kilovolt-a peres (kVA), approxi ately:
– Mini u : 0.14 kVA
– Maxi u : 1.19 kVA
Security features:
• Login password for re ote connection
• Secure Sockets Layer (SSL) security for re ote anage ent access
• Trusted and signed fir ware
Predictive Failure Analysis (PFA) alerts:
• Fan odules
• Co pute-node dependent features
• Power supply odules
Size (6U):
• Height: 263.3 (10.37 in.)
• Depth: 914.5 (36 in.)
• Width: 447 (17.6 in.)
• Weight:
– Fully configured (stand-alone): approxi ately 112 kg (247 lb)
– E pty chassis (with idplant, FPC, and cables): approxi ately 28 kg (62 lb)
Approximate heat output::
Approxi ate heat output:
• Mini u configuration: 1365 Btu per hour (400 watts)
• Maxi u configuration: 24,565 Btu per hour (7,200 watts)
Declared sound power level:
• 7.5 bels
Chassis airflow:
Full chassis configuration with all nodes, fan power control, power supplies, and fan odules installed.
• Mini u - 158 CFM (at the idle state)
• No inal - 213 CFM (at the acoustic fan speed)
• Maxi u - 614 CFM (at the fan full speed)
Environment:
The NeXtScale n1200 Enclosure co plies with ASHRAE class A3 specifications.
• Power on 1:
– Te perature: 5°C - 40°C (41°F - 104°F) 3
– Hu idity, non-condensing: -12°C dew point (10.4°F) and 8% - 85% relative hu idity 5,6
– Maxi u dew point: 24°C (75°F)
– Maxi u altitude: 3048 (10,000 ft)
– Maxi u rate of te perature change: 5°C/hr (41°F/hr ) 4
Chapter 1.The NeXtScale n1200 Enclosure Type 5456 7

• Power off 2:
– Te perature: 5°C to 45°C (41°F - 113°F)
– Relative hu idity: 8% - 85%
– Maxi u dew point: 27°C (80.6°F)
• Storage (non-operating):
– Te perature: 1°C to 60°C (33.8°F - 140°F)
– Altitude: 3050 (10,006 ft)
– Relative hu idity: 5% - 80%
– Maxi u dew point: 29°C (84.2°F)
• Ship ent (non-operating) 7:
– Te perature: -40°C to 60°C (-40°F - 140°F)
– Altitude: 10,700 (35,105 ft)
– Relative hu idity: 5% - 100%
– Maxi u dew point: 29°C (84.2°F) 8
Notes:
1. Chassis is powered on.
2. Chassis is re oved fro original shipping container and is installed but not in use, for exa ple, during
repair, aintenance, or upgrade.
3. A3 - Derate axi u allowable te perature 1°C/175 above 950 .
4. 5°C/hr for data centers e ploying tape drives and 20°C/hr for data centers e ploying disk drives.
5. The ini u hu idity level for class A3 is the higher ( ore oisture) of the -12 °C dew point and the
8% relative hu idity. These intersect at approxi ately 25°C. Below this intersection (~25C) the dew
point (-12 °C) represents the ini u oisture level, while above it relative hu idity (8%) is the
ini u .
6. Moisture levels lower than 0.5°C DP, but not lower -10 °C DP or 8% relative hu idity, can be accepted if
appropriate control easures are i ple ented to li it the generation of static electricity on personnel
and equip ent in the data center. All personnel and obile furnishings and equip ent ust be
connected to ground via an appropriate static control syste . The following ite s are considered the
ini u require ents:
a. Conductive aterials (conductive flooring, conductive footwear on all personnel that go into the
datacenter, all obile furnishings and equip ent will be ade of conductive or static dissipative
aterials).
b. During aintenance on any hardware, a properly functioning wrist strap ust be used by any
personnel who contacts IT equip ent.
7. The equip ent accli ation period is 1 hour per 20 °C of te perature change fro the shipping
environ ent to the operating environ ent.
8. Condensation is acceptable, but not rain.
9. Power consu ption and heat output vary depending on the nu ber and type of optional features
installed and the power- anage ent optional features in use.
10. The noise e ission level stated is the declared (upper li it) sound power level, in bels, for a rando
sa ple of achines. All easure ents are ade in accordance with ISO 7779 and reported in
confor ance with ISO 9296. Actual sound-pressure levels in a given location ight exceed the average
values stated because of roo reflections and other nearby noise sources. The noise e ission level
stated in the declared (upper li it) sound-power level, in bels, for a rando sa ple of syste .
8Lenovo NeXtScale n1200 Enclosure Installation and Service Guide