Cisco UCS B250 M1 Manual

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Cisco UCS B250 Extended Memory Blade Server
Installation and Service Note
Last Revised: August 22, 2011
The UCS B250 blade server (shown in Figure 1) is available in both M1 and M2 versions. This document
applies equally to both versions. The Cisco UCS B250 is a full-width blade with 48 DIMM slots for up
to 384 GB of memory; it supports two adapters. You may install up to four UCS B250 Blade Servers to
a UCS chassis.
Figure 1 UCS B250 Extended Memory Blade Server
1Hard drive bay 1 8Power button and LED
2Hard drive bay 2 9Network link status LED
3Left ejector captive screw 10 Blade health LED
4Left blade ejector handle 11 Console connector
5Asset tab 1
1. Each server has a blank plastic tag that pulls out of the front panel, provided so you can add your
own asset tracking label without interfering with the intended air flow.
12 Reset button access
6Right blade ejector handle 13 Beaconing LED and button
7Right ejector captive screw

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LEDs
The LED indicators (see Table 1) indicate whether the blade server is in active or standby mode, the
status of the network link, the overall health of the blade server, and whether the server is set to give a
flashing blue beaconing indication.
The removable hard disks also have LEDs indicating hard disk access activity and hard disk health.
Buttons
The Reset button is just inside the chassis and must be pressed using the tip of a paper clip or a similar
item. Hold the button down for five seconds and then release it to restart the server if other methods of
restarting are not working.
The beaconing function for an individual server may be turned on or off by pressing the combination
button and LED. See Table 1 for details. Beaconing will be reflected in the UCS Manager interface and
can also be turned off and on from there.
The power button and LED allows you to manually take a server temporarily out of service but leave it
in a state where it can be restarted quickly, or to bring it back into service. If the desired power state for
a service profile associated with a blade server or an integrated rack-mount server is set to "off", using
the power button or Cisco UCS Manager to reset the server will cause the desired power state of the
server to become out of sync with the actual power state and the server may unexpected shutdown at a
later time. To safely reboot a server from a power-down state, use the Boot Server action in Cisco UCS
Manager.
Table 1 Blade Server LEDs
LED Color Description
Power Off Power off
Green Normal operation
Amber Standby
Link Off None of the network links are up
Green At least one network link is up
Health Off Power off
Green Normal operation
Amber Minor error
Blinking
Amber
Critical error
Beaconing Off Beaconing not enabled.
Blinking
blue 1 Hz
Beaconing to locate a selected blade—If the LED is not
blinking, the blade is not selected. You can initiate
beaconing in UCS Manager or with the button.
Activity
(Disk Drive)
Off Inactive.
Green Outstanding I/O to disk drive
Health
(Disk Drive)
Off No fault
Amber Some fault

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Connectors
A console port is provided to give a direct connection to a blade server to allow operating system
installation and other management tasks to be done directly rather than remotely. The port uses the KVM
dongle device included in the chassis accessory kit.
The KVM cable (N20-BKVM, shown in Figure 2) provides a connection into a Cisco UCS blade server;
it has a a DB9 serial connector, a VGA connector for a monitor, and dual USB ports for a keyboard and
mouse. With this cable you can create a direct connection to the operating system and the BIOS running
on a blade server.
Figure 2 KVM Cable for Blade Servers
Conventions
This document uses the following conventions for notes, cautions, and safety warnings.
Notes and Cautions contain important information that you should know.
Note Means reader take note. Notes contain helpful suggestions or references to material that are not covered
in the publication.
Caution Means reader be careful. You are capable of doing something that might result in equipment damage or
loss of data.
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, can
cause physical injuries. A warning symbol precedes each warning statement.
1Connector to blade server slot 3VGA connection for a monitor
2DB9 serial connector 42-port USB connector for a mouse and keyboard

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Warning IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this
device.
Statement 1071
SAVE THESE INSTRUCTIONS
Waarschuwing
BELANGRIJKE VEILIGHEIDSINSTRUCTIES
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan
veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij
elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard
praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de
waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt
raadplegen.
BEWAAR DEZE INSTRUCTIES
Varoitus
TÄRKEITÄ TURVALLISUUSOHJEITA
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin
käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu
onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen
mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien
lausuntonumeroiden avulla.
SÄILYTÄ NÄMÄ OHJEET
Attention
IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant
entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez
conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures
couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des
avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil,
référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS
Warnung
WICHTIGE SICHERHEITSHINWEISE
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen
kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und
den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder
Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten
Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.

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Avvertenza
IMPORTANTI ISTRUZIONI SULLA SICUREZZA
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle
persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli
relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti.
Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le
traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
Advarsel
VIKTIGE SIKKERHETSINSTRUKSJONER
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du
begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med
elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten
av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne
enheten.
TA VARE PÅ DISSE INSTRUKSJONENE
Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de
lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos
perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de
prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para
localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES
¡Advertencia!
INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los
procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el
número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña
a este dispositivo.
GUARDE ESTAS INSTRUCCIONES
Varning!
VIKTIGA SÄKERHETSANVISNINGAR
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada.
Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och
känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av
varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna
anordning.
SPARA DESSA ANVISNINGAR

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Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões
corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os
circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o
número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de
segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
Advarsel
VIGTIGE SIKKERHEDSANVISNINGER
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for
legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de
involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til
undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de
oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER

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Cisco UCS B250 Extended Memory Blade Server Installation and Service Note
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Installing and Removing a Blade Server Hard Drive
Installing and Removing a Blade Server Hard Drive
There are up to 2 front-accessible, hot-swappable, 2.5-inch drives per blade. An LSI 1064E RAID
controller is embedded in the motherboard (it is not separately replaceable) and it supports RAID 0 and
1. You can remove blade server hard drives without removing the blade server from the chassis. All other
component replacement for a blade server requires removing the blade from the chassis. Unused hard
drive bays should always be covered with cover plates (N20-BBLKD) to assure proper cooling and
ventilation. The chassis is omitted from illustrations here to simplify the drawing.
Caution To prevent ESD damage, wear grounding wrist straps during these procedures and handle modules by
the carrier edges only.
Note Seagate SATA disks and Intel or Samsung SATA SSDs are not supported in UCS Manager release 1.2(1)
and cannot be used with servers using UCS Manager release 1.2(1).
Replacing an HDD or SSD with a drive of the same size, model, and manufacturer generally causes few
problems with UCS Manager. If the drive being replaced was part of a RAID array we recommend using
a newly ordered drive of identical size, model, and manufacturer to replace the failed drive. Cisco
recommends following industry standard practice of using drives of the same capacity when creating
RAID volumes. If drives of different capacities are used, the usable portion of the smallest drive will be
used on all drives that make up the RAID volume. Before upgrading or adding an HDD to a running
system, check the service profile in UCS Manager and make sure the new hardware configuration will
be within the parameters allowed by the service profile.
Hard disk and RAID troubleshooting information is in the “Troubleshooting Server Hardware” chapter
of the Cisco UCS Troubleshooting Guide.

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Installing and Removing a Blade Server Hard Drive
Table 2 shows the drives supported in this blade server.
Removing a Blade Server Hard Drive
To remove a hard drive from a blade server, follow these steps:
Step 1 Push the button to release the ejector, and then pull the hard drive from its slot.
Step 2 Place the hard drive on an antistatic mat or antistatic foam if you are not immediately reinstalling it in
another blade server.
Step 3 Install a blank faceplate (N20-BBLKD) to keep dust out of the blade server if the slot will remain empty.
Table 2 Supported Hard Disk Drives (HDD)
Product ID Description
A03-D073GC2 73 GB 6Gb SAS transfer rate1, 15K RPM HDD/hot plug/drive sled mounted
1. The built-in 1064E RAID controller runs at 1.5Gb Link Speed instead of 3Gb with 6Gb Local Disks when running UCS 1.4(2) and earlier software
releases.
A03-D146GA2 146 GB 6Gb SAS transfer rate1, 10K RPM SFF HDD/hot plug/drive sled mounted
A03-D146GC2 146 GB 6Gb SAS transfer rate1, 10K RPM SFF HDD/hot plug/drive sled mounted
A03-D300GA2 300 GB, 6Gb SAS transfer rate1, 15K RPM HDD/hot plug/drive sled mounted
A03-D100SSD 100 GB SATA SSD HDD/hot plug/drive sled mounted (no longer sold)
A03-D600GA2 600 GB, 6Gb SAS transfer rate1, 10K RPM HDD/hot plug/drive sled mounted
A03-D500GC3 500GB 6Gb SATA 7.2K RPM SFF hot plug/drive sled mounted
UCS-SSD100GI1F104 100 GB Low-Height 7mm SATA SSD hot plug/drive sled mounted
A03-D1TBSATA 1 TB SATA 7.2K RPM SFF HDD /hot plug/drive sled mounted
UCS-HDD300GI2F105 300GB 6Gb SAS 15K RPM SFF HDD/hot plug/drive sled mounted2
2. This drive requires UCS capability catalog version 1.0.50.T or 2.0.1nT or later.
UCS-HDD900GI2F106 900GB 6Gb SAS 10K RPM SFF HDD/hot plug/drive sled mounted3
3. This drive requires UCS capability catalog version 1.0.54.T or 2.0.1pT or later.

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Installing and Removing a Blade Server Hard Drive
Figure 3 shows the removal and installation of a hard drive within a blade server.
Figure 3 Installing and Removing a Hard Drive in a Blade Server
Installing a Blade Server Hard Drive
To install a blade server hard drive in either type of blade server, follow these steps:
Step 1 Place the hard drive lever into the open position by pushing the release button (see Figure 3).
Step 2 Gently slide the hard drive into the opening in the blade server until it seats into place.
Step 3 Push the hard drive lever into the closed position.

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Removing and Installing a UCS B250 Extended Memory Blade Server
With the B-250 blade server, the displayed ESX and Linux OS HDD Boot Device Order is the reverse
of the BIOS HDD Boot Order. To rectify this, review both the disks (and drive labels as applicable),
during installations of ESX and Linux versions and choose the correct disk for installation.
You can use UCS Manager to format and configure RAID services. refer to the UCS Manager
configuration guide for your software release for details on RAID configuration.
If you need to move a RAID cluster, refer to the Moving a RAID Cluster section of the “Troubleshooting
Server Hardware” chapter of the Cisco UCS Troubleshooting Guide.
Removing and Installing a UCS B250 Extended Memory Blade
Server
Before performing any internal operation on a blade server, you must remove it from the chassis. To
prevent ESD damage, wear grounding wrist straps during these procedures and handle modules by the
carrier edges only.
Shutting Down and Powering Off A Blade Server
The server can run in two power modes:
•Main power mode—Power is supplied to all server components and any operating system on your
hard drives can run.
•Standby power mode—Power is supplied only to the service processor and the cooling fans and it
is safe to power off the server from this mode.
After establishing a connection to the blade server’s operating system, you can directly shut down the
blade server using the operating system.
You can invoke a graceful shutdown or an emergency shutdown (hard shutdown) by using either of the
following methods:
•Use the UCS Manager. See either the Cisco UCS Manager GUI Configuration Guide or the Cisco
UCS Manager CLI Configuration Guide.
•Use the Power button on the server front panel. To use the Power button, follow these steps:
Step 1 Check the color of the Power Status LED.
•Green indicates that the server is in main power mode and must be shut down before it can be safely
powered off. Go to Step 2.
•Amber indicates that the server is already in standby mode and can be safely powered off. Go to
Step 3.
Step 2 Invoke either a graceful shutdown or a hard shutdown:
Caution To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown
of the operating system.
•Graceful shutdown—Press and release the Power button. The operating system will perform a
graceful shutdown and the server goes to standby mode, which is indicated by an amber Power
Status LED.

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Removing and Installing a UCS B250 Extended Memory Blade Server
•Emergency shutdown—Press and hold the Power button for 4 seconds to force the main power off
and immediately enter standby mode.
Step 3 If you are shutting down all blade servers in a chassis, you should now disconnect the power cords from
the chassis to completely power off the servers. If you are only shutting down one server, you can skip
unplugging the chassis and move to removing the server.
Removing a Cisco UCS B250 Extended Memory Blade Server
Using UCS Manager, decommission the server using UCS Manager before physically removing the
server. To remove a Extended Memory blade server from the chassis, follow these steps:
Step 1 Completely loosen the captive screws on the front of the blade.
Step 2 Remove the blade from the chassis by pulling the ejector levers on the blade until it unseats the extended
memory blade server.
Step 3 Slide the blade part of the way out of the chassis, and place your other hand under the blade to support
its weight.
Step 4 Once removed, place the blade on an antistatic mat or antistatic foam if you are not immediately
reinstalling it into another slot.
Step 5 If the slot is to remain empty, reinstall the slot divider (N20-CDIVV) and install two blank faceplates
(N20-CBLKB1) to assure proper ventilation and cooling.
Installing a Cisco UCS B250 Extended Memory Blade Server
Extended memory blade servers reside within the upper slots of the chassis. To install an Extended
memory blade server, follow these steps:
Step 1 If necessary, remove the slot divider (N20-CDIVV) from the chassis. To do this, follow these steps:
a. Simultaneously pull up on the left side catch and push down on the right side catch as shown in
callout 1 of Figure 4.
b. Pull the slot divider out of the chassis as shown in callout 2 of Figure 4. Keep the slot divider in case
it is needed at another time.
To reinstall the slot divider, align it with the dimples in the slot top and bottom and slide it back in
until it clicks into place.

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Removing and Installing a UCS B250 Extended Memory Blade Server
Figure 4 Removing a Chassis Partition
Step 2 Grasp the front of the Extended Memory blade server and place your other hand under the blade to
support it. See Figure 5.
Figure 5 Positioning an Extended Memory Blade Server in the Chassis
Step 3 Open the ejector levers in the front of the extended memory blade server.
Step 4 Gently slide the blade into the opening until you cannot push it any farther.
Step 5 Press the ejector levers so that they catch the edge of the chassis and press the extended memory blade
server all the way in.

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Removing an Extended Memory Blade Server Cover
Step 6 Tighten the captive screw on the front of the blade to no more than 3 in-lbs. Tightening with bare fingers
only is unlikely to lead to stripped or damaged captive screws.
Step 7 Power on the server. UCS Manager will automatically re acknowledge, reassociate, and recommission
the server, provided any hardware changes are allowed by the service profile.
Removing an Extended Memory Blade Server Cover
To open an extended memory blade server, follow these steps:
Step 1 Press and hold the button down as shown in Figure 6
Step 2 While holding the back end of the cover, pull the cover up and back.
Figure 6 Opening an Extended Memory Blade Server
Installing and Removing the B250 M2 Air Baffle
The air baffle available with the M2 servers may need to be installed in M1 servers. You will need a #1
Phillips Screw Driver and a 1/4” Nut Driver to install the baffle. To install the baffle:
Step 1 Remove the top cover from the enclosure of UCS B250 Blade Server.
Step 2 Using the screwdriver, remove the pan head screws securing the motherboard to the tray where the
standoffs are shown in Figure 7.
Step 3 Using the nut driver, replace the pan head screws with the standoffs that are provided through the field
upgrade kit (N20-BBFLB=).
Note If a Cisco UCS B250 M1 server with a single processor is installed in a chassis next to a Cisco UCS
B440 or B230 server, the Cisco UCS B440 or B230 may throttle down due to insufficient available
cooling. To avoid this, you will need to order or place an RMA for the Cisco UCS B250 M1 internal air
baffle N20-BBFLB=. This baffle is only required when co-installed Cisco UCS B250 M1 servers are

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Installing and Removing the B250 M2 Air Baffle
configured with a single CPU. Cisco UCS B250 M1 servers shipped beginning July 2010 and all Cisco
UCS B250 M2 servers are automatically shipped with a baffle pre-installed. Installation requires no tools
and is shown in Figure 7. The baffle provides needed back pressure that allows the fans and heat sinks
to work together optimally.
Figure 7 Air Baffle (N20-BBFLB) Installation
Step 4 Carefully place the air baffle (provided through the field upgrade kit) so that two alignment holes will
align with and are engaged with the top of the standoffs.
Step 5 Replace the top cover onto the enclosure of the UCS B250 Blade Server.

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Installing and Removing the B250 M2 Air Baffle
Internal Components
Figure 8 calls out the various components within the extended memory blade server.
Figure 8 Inside View of a Extended Memory Blade Server
Diagnostics Button and LEDs
At blade start-up, POST diagnostics test the CPUs, DIMMs, HDDs and adapter cards, and any failure
notifications are sent to UCSM. You can view these notification in the System Error Log or in the output
of the show tech-support command. If errors are found, an amber diagnostic LED will also light up next
to the failed component. During run time, the blade BIOS, component drivers, and OS all monitor for
hardware faults and will light up the amber diagnostic LED for a component if an uncorrectable error or
correctable errors (such as a host ECC error) over the allowed threshold occur.
1Hard drive bays 4DIMM slots
2CMOS Battery 5Adapter card slot 0
3CPU and heat sink 6Adapter card slot 1

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Working Inside the Extended Memory Blade Server
LED states are saved, and if you remove the blade from the chassis the LED values will persist for up to
10 minutes. Pressing the LED diagnostics button on the motherboard will cause the LEDs that currently
show a component fault to light for up to 30 seconds for easier component identification. LED fault
values are reset when the blade is reinserted into the chassis and booted, and the process begins from its
start.
If DIMM insertion errors are detected, they may cause the blade discovery to fail and errors will be
reported in the server POST information, viewable using the UCS Manager GUI or CLI. UCS blade
servers require specific rules to be followed when populating DIMMs in a blade server, and the rules
depend on the blade server model. Refer to the documentation for a specific blade server for those rules.
HDD status LEDs are on the front face of the HDD. Faults on the CPU, DIMMs, or adapter cards will
also cause the server health LED to light solid Amber for minor error conditions or blinking Amber for
critical error conditions.
Working Inside the Extended Memory Blade Server
This section describes how to perform the following tasks within a extended memory blade server. All
of these procedures require you to first remove the server from the chassis, and then remove the cover.
•Installing a Motherboard CMOS Battery, page 18
•Installing a CPU or Heat Sink, page 21
•Installing Memory, page 22
•Removing or Installing an Adapter Card, page 30
Installing a Motherboard CMOS Battery
This blade uses the following Cisco component:
Warning There is danger of explosion if the battery is replaced incorrectly. Replace the battery only with the
same or equivalent type recommended by the manufacturer. Dispose of used batteries according to
the manufacturer’s instructions.
Statement 1015
To install or replace a motherboard complementary metal-oxide semiconductor (CMOS) battery, follow
these steps:
Step 1 Remove a motherboard CMOS battery:
a. Set the blade power to standby, remove it from the chassis, and remove the top cover as described
in the “Working Inside the Extended Memory Blade Server” section on page 18.
b. Press the battery socket retaining clip toward the chassis wall (see Figure 9).
c. Lift the battery from the socket. Use needle-nose pliers to grasp the battery if there is not enough
clearance for your fingers.
Supported Components Part Number
CR2032 battery N20-MBLIBATT

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Working Inside the Extended Memory Blade Server
Step 2 Install a motherboard CMOS battery:
a. Press the battery socket retaining clip toward the chassis wall.
b. Insert the new battery into the socket with the battery’s positive (+) marking toward the chassis wall.
Ensure that the retaining clip clicks over the top of the battery.
c. Replace the top cover.
d. Replace the server in the chassis, and then power on the server by pressing the Power button.
Figure 9 Removing and Replacing a Motherboard CMOS Battery
CMOS battery replacement will not have any impact on UCS Manager.
Removing a CPU or Heat Sink
You can order your blade server with two CPUs, or upgrade later to a second CPU. Both CPUs must be
of the same type, and memory in slots intended for the second CPU will not be recognized if the second
CPU is not present (see Memory Arrangement, page 26). You may need to use these procedures to move
a CPU from one server to another, or to replace a faulty CPU.
Table 3 and Table 4 show the available CPU options:
Table 3 CPU Options, M1 Models
Product ID Power Draw (W) Clock Speed DDR3 Cache
Low
Voltage
N20-X00001 / Xeon X5570 95 W 2.93 GHz 1333 18 MB N
N20-X00002 / Xeon E5540 80 W 2.53 GHz 1066 8 MB N

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20
Cisco UCS B250 Extended Memory Blade Server Installation and Service Note
OL-22474-03
Working Inside the Extended Memory Blade Server
Note The default in the M2 BIOS is low voltage mode, which has the CPU running at 1.35V @ 1066 MHz,
while Performance mode uses 1.5V @ 1333 MHz. You will need to change the BIOS settings to access
Performance mode.
To remove a CPU or heat sink, follow these steps:
Step 1 Unscrew the four captive screws securing the heat sink to the motherboard. See Figure 10, callout 1.
N20-X00003 / Xeon E5520 80 W 2.26 GHz 1066 8 MB N
N20-X00004 / Xeon L5520 60 W 2.26 GHz 1066 8 MB N
N20-X00006 / Xeon X5550 95 W 2.66 GHz 1333 18 MB N
N20-X00009 / Xeon E5504 80 W 2.00 GHz 800 8 MB N
1. While the CPU and DIMMs in an M1 server might in some cases seem to support 1333 DDR, the optimal setting
due to BIOS concerns is 1066.
Table 4 CPU Options, M2 Models
Product ID Power Draw (W) Clock Speed DDR3 Cache
Low Voltage
Mode
N20-X00001 / Xeon X5570 95 W 2.93 GHz 1333 1
1. While the CPU and DIMMs in an M1 server might in some cases seem to support 1333 DDR, the optimal setting due to BIOS
concerns is 1066.
8 MB N
N20-X00002 / Xeon E5540 80 W 2.53 GHz 1066 8 MB N
N20-X00003 / Xeon E5520 80 W 2.26 GHz 1066 8 MB N
N20-X00004 / Xeon L5520 60 W 2.26 GHz 1066 8 MB N
N20-X00006 / Xeon X5550 95 W 2.66 GHz 1333 18 MB N
N20-X00009 / Xeon E5504 80 W 2.00 GHz 800 8 MB N
A01-X0100 / Xeon X5680 130 W 3.33 GHz 1333 12 MB Y
A01-X0102 / Xeon X5670 95 W 2.93 GHz 1333 12 MB Y
A01-X0105 / Xeon X5650 95 W 2.66 GHz 1333 12 MB Y
A01-X0106 / Xeon L5640 60 W 2.26 GHz 1333 12 MB Y
A01-X0109 / Xeon E5640 80 W 2.66 GHz 1066 2
2. If the CPU and DIMM speeds do not match, the system will run at the slower of the two speeds.
12 MB Y
A01-X0111 / Xeon E5620 80 W 2.40 GHz 1066 212 MB Y
A01-X0115 / Xeon X5690 130 W 3.46 GHz 1333 12 MB Y
A01-X0117 / Xeon X5675 95W 3.06 GHz 1333 12 MB Y
A01-X0120 / Xeon E5649 80W 2.53 GHz 1333 12 MB Y
Table 3 CPU Options, M1 Models (continued)
Product ID Power Draw (W) Clock Speed DDR3 Cache
Low
Voltage