Lenovo 7X18 User manual

ThinkSystem SR850
Maintenance Manual
Machine Types: 7X18 and 7X19

Note
Before using this information and the roduct it su orts, be sure to read and understand the safety
information and the safety instructions, which are available at:htt ://thinksystem.lenovofiles.com/hel /to ic/
safety_documentation/ df_files.html
In addition, be sure that you are familiar with the terms and conditions of the Lenovo warranty for your server,
which can be found at:
htt ://datacentersu ort.lenovo.com/warrantylooku
Twenty-ninth Edition (November 2022)
© Copyright enovo 2017, 2022.
IMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.

Contents
Contents . . . . . . . . . . . . . . . . . i
Safety . . . . . . . . . . . . . . . . . . iii
Safety ins ection checklist . . . . . . . . . . . iv
Chapter 1. Introduction . . . . . . . . . 1
S ecifications . . . . . . . . . . . . . . . . 1
Particulate contamination . . . . . . . . . . 5
Firmware u dates . . . . . . . . . . . . . . . 6
Tech Ti s . . . . . . . . . . . . . . . . . 10
Security advisories . . . . . . . . . . . . . 10
Power on the server . . . . . . . . . . . . . 10
Power off the server . . . . . . . . . . . . . 11
Chapter 2. Server components . . . . 13
Front view . . . . . . . . . . . . . . . . . 13
Front o erator anel . . . . . . . . . . . 16
Front o erator anel with LCD dis lay . . . . 16
Rear view . . . . . . . . . . . . . . . . . 21
System-board connectors. . . . . . . . . . . 25
Switches, jum ers, and buttons . . . . . . . . 26
System-board LEDs . . . . . . . . . . . . . 27
O tional rocessor and memory ex ansion tray . . 28
PCIe riser-cards. . . . . . . . . . . . . . . 31
2.5-inch drive back lanes . . . . . . . . . . . 32
RAID ada ters . . . . . . . . . . . . . . . 33
Internal cable routing. . . . . . . . . . . . . 34
Cable routing for 2.5-inch drives . . . . . . 34
Parts list. . . . . . . . . . . . . . . . . . 49
Power cords . . . . . . . . . . . . . . 53
Chapter 3. Hardware replacement
procedures . . . . . . . . . . . . . . . 55
Installation Guidelines . . . . . . . . . . . . 55
System reliability guidelines . . . . . . . . 56
Working inside the server with the ower on . . 57
Handling static-sensitive devices . . . . . . 57
2.5-inch hot-swa drive and drive back lane
re lacement . . . . . . . . . . . . . . . . 58
Remove a drive back lane. . . . . . . . . 58
Install a drive back lane. . . . . . . . . . 59
Remove a 2.5-inch hot-swa drive . . . . . 59
Install a 2.5-inch hot-swa drive . . . . . . 60
CMOS battery (CR2032) re lacement . . . . . . 61
Remove the CMOS battery (CR2032) . . . . 61
Install the CMOS battery (CR2032) . . . . . 64
Fan and fan cage re lacement . . . . . . . . . 65
Remove the fan cage assembly . . . . . . . 65
Install the fan cage assembly . . . . . . . . 67
Remove a hot-swa fan . . . . . . . . . . 68
Install a hot-swa fan . . . . . . . . . . . 69
Front VGA assembly re lacement . . . . . . . 70
Remove the front VGA assembly . . . . . . 71
Install the front VGA assembly . . . . . . . 73
LOM ada ter re lacement . . . . . . . . . . 75
Remove the LOM ada ter . . . . . . . . . 75
Install the LOM ada ter . . . . . . . . . . 77
M.2 drive and back lane re lacement . . . . . . 78
How to adjust the osition of the retainer on
the M.2 back lane . . . . . . . . . . . . 78
Remove the M.2 back lane . . . . . . . . 79
Install the M.2 back lane . . . . . . . . . 80
Remove an M.2 drive from the M.2
back lane . . . . . . . . . . . . . . . 82
Install an M.2 drive in the M.2 back lane . . . 82
Memory module re lacement . . . . . . . . . 84
Remove a memory module . . . . . . . . 84
Install a memory module . . . . . . . . . 86
O erator anel tray assembly and front o erator
anel re lacement. . . . . . . . . . . . . . 88
Remove the o erator anel tray assembly. . . 89
Install the o erator anel tray assembly. . . . 90
Remove the front o erator anel . . . . . . 92
Install the front o erator anel . . . . . . . 93
PCIe riser-card assembly and ada ter
re lacement . . . . . . . . . . . . . . . . 93
Remove the PCIe riser-card assembly . . . . 93
Install the PCIe riser-card assembly . . . . . 96
Remove an ada ter . . . . . . . . . . . 98
Install an ada ter . . . . . . . . . . . . 99
Power su ly unit re lacement . . . . . . . . . 101
Remove a hot-swa ower su ly unit . . . . 101
Install a hot-swa ower su ly unit . . . . . 105
Processor and heat sink re lacement . . . . . . 110
Remove a rocessor and heat sink . . . . . 110
Install a rocessor and heat sink . . . . . . 114
Processor and memory ex ansion tray
re lacement . . . . . . . . . . . . . . . . 119
Remove the rocessor and memory
ex ansion tray . . . . . . . . . . . . . 120
Install the rocessor and memory ex ansion
tray . . . . . . . . . . . . . . . . . . 122
Security bezel re lacement . . . . . . . . . . 124
Remove the security bezel . . . . . . . . . 124
© Co yright Lenovo 2017, 2022 i

Install the security bezel . . . . . . . . . . 125
System board air baffle and the ower inter oser
re lacement . . . . . . . . . . . . . . . . 126
Remove the system board air baffle and the
ower inter oser . . . . . . . . . . . . 126
Install the system board air baffle and the
ower inter oser . . . . . . . . . . . . 128
System board re lacement . . . . . . . . . . 130
Remove the system board . . . . . . . . . 130
Install the system board . . . . . . . . . . 132
U date the machine ty e and serial
number . . . . . . . . . . . . . . . . 134
Enable TPM/TCM . . . . . . . . . . . . 136
Enable UEFI Secure Boot . . . . . . . . . 139
TCM/TPM ada ter re lacement . . . . . . . . 140
Remove the TCM/TPM ada ter (for Chinese
Mainland only) . . . . . . . . . . . . . 140
Install the TCM/TPM ada ter (for Chinese
Mainland only) . . . . . . . . . . . . . 142
To cover re lacement . . . . . . . . . . . . 144
Remove the to cover . . . . . . . . . . 145
Install the to cover . . . . . . . . . . . 146
Com lete the arts re lacement . . . . . . . . 147
Chapter 4. Problem
determination . . . . . . . . . . . . . 149
Event logs . . . . . . . . . . . . . . . . . 149
Light ath diagnostics . . . . . . . . . . . . 150
Power su ly LEDs . . . . . . . . . . . 151
System-board LEDs . . . . . . . . . . . 154
General roblem determination rocedures . . . . 155
Resolving sus ected ower roblems . . . . 155
Resolving sus ected Ethernet controller
roblems . . . . . . . . . . . . . . . 156
Troubleshooting by sym tom . . . . . . . . . 157
Hard disk drive roblems . . . . . . . . . 157
Fan roblems . . . . . . . . . . . . . . 159
Intermittent roblems. . . . . . . . . . . 159
Keyboard, mouse, KVM switch or USB-device
roblems . . . . . . . . . . . . . . . 160
Memory roblems . . . . . . . . . . . . 161
Monitor and video roblems . . . . . . . . 163
Network roblems . . . . . . . . . . . . 165
Observable roblems. . . . . . . . . . . 165
O tional-device roblems . . . . . . . . . 168
Power on and ower off roblems . . . . . . 169
Processor roblems . . . . . . . . . . . 171
Serial-device roblems . . . . . . . . . . 171
Software roblems. . . . . . . . . . . . 172
Appendix A. Hardware
disassembling for recycle . . . . . . . 173
Disassemble the system board for recycle . . . . 173
Disassemble the rocessor and memory
ex ansion tray for recycle . . . . . . . . . . . 174
Disassemble the server for chassis recycle . . . . 175
Appendix B. Getting help and
technical assistance . . . . . . . . . . 177
Before you call . . . . . . . . . . . . . . . 177
Collecting service data . . . . . . . . . . . . 178
Contacting Su ort . . . . . . . . . . . . . 179
Appendix C. Notices. . . . . . . . . . 181
Trademarks . . . . . . . . . . . . . . . . 182
Im ortant notes . . . . . . . . . . . . . . . 182
Telecommunication regulatory statement. . . . . 182
Electronic emission notices . . . . . . . . . . 183
Taiwan Region BSMI RoHS declaration. . . . 183
Taiwan Region im ort and ex ort contact
information . . . . . . . . . . . . . . . . 184
Index . . . . . . . . . . . . . . . . . . 185
ii ThinkSystem SR850 Maintenance Manual

Safety
Before installing this roduct, read the Safety Information.
Antes de instalar este roduto, leia as Informações de Segurança.
Læs sikkerhedsforskrifterne, før du installerer dette rodukt.
Lees voordat u dit roduct installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce roduit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo rodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette roduktet.
Antes de instalar este roduto, leia as Informações sobre Segurança.
© Co yright Lenovo 2017, 2022 iii

Antes de instalar este roducto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här rodukten.
Safety inspection checklist
Use the information in this section to identify otentially unsafe conditions with your server. As each machine
was designed and built, required safety items were installed to rotect users and service technicians from
injury.
Notes:
1. The roduct is not suitable for use at visual dis lay work laces according to §2 of the Work lace
Regulations.
2. The set-u of the server is made in the server room only.
CAUTION:
This equipment must be installed or serviced by trained personnel, as defined by the NEC, IEC 62368-
1 & IEC 60950-1, the standard for Safety of Electronic Equipment within the Field of Audio/Video,
Information Technology and Communication Technology. enovo assumes you are qualified in the
servicing of equipment and trained in recognizing hazards energy levels in products. Access to the
equipment is by the use of a tool, lock and key, or other means of security, and is controlled by the
authority responsible for the location.
Important: Electrical grounding of the server is required for o erator safety and correct system function.
Pro er grounding of the electrical outlet can be verified by a certified electrician.
Use the following checklist to verify that there are no otentially unsafe conditions:
1. Make sure that the ower is off and the ower cord is disconnected.
2. Check the ower cord.
• Make sure that the third-wire ground connector is in good condition. Use a meter to measure third-
wire ground continuity for 0.1 ohm or less between the external ground in and the frame ground.
• Make sure that the ower cord is the correct ty e.
To view the ower cords that are available for the server:
a. Go to:
iv ThinkSystem SR850 Maintenance Manual

htt ://dcsc.lenovo.com/#/
b. Click Preconfigured Model or Configure to order.
c. Enter the machine ty e and model for your server to dis lay the configurator age.
d. Click Power ➙ Power Cables to see all line cords.
• Make sure that the insulation is not frayed or worn.
3. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo
alterations.
4. Check inside the server for any obvious unsafe conditions, such as metal filings, contamination, water or
other liquid, or signs of fire or smoke damage.
5. Check for worn, frayed, or inched cables.
6. Make sure that the ower-su ly cover fasteners (screws or rivets) have not been removed or tam ered
with.
© Co yright Lenovo 2017, 2022 v

vi ThinkSystem SR850 Maintenance Manual

Chapter 1. Introduction
The ThinkSystem SR850 is a 2U rack server designed for high-volume network transaction rocessing. This
high- erformance, multi-core server is ideally suited for networking environments that require su erior
rocessor erformance, in ut/out ut (I/O) flexibility, and high manageability.
Figure 1. ThinkSystem SR850
The server comes with a limited warranty. For details about the warranty, see: htt s://su ort.lenovo.com/us/
en/solutions/ht503310
For details about your s ecific warranty, see: htt ://datacentersu ort.lenovo.com/warrantylooku
Specifications
The following information is a summary of the features and s ecifications of the server. De ending on the
model, some features might not be available, or some s ecifications might not a ly.
Table 1. Specifications, Type 7 18 and 7 19
Specification Description
Dimension 2U server
• Height: 86.5 mm (3.4 inches)
• Width:
– With rack handles: 482 mm (19.0 inches)
– Without rack handles: 444.6 mm (17.5 inches)
• De th: 763.7 mm (30.1 inches)
Note: The de th is measured with rack handles installed, but without the security bezel
installed.
Weight (de ending on the
configuration)
27.0 kg (59.6 lb) in maximum.
© Co yright Lenovo 2017, 2022 1

Table 1. Specifications, Type 7 18 and 7 19 (continued)
Processor (de ending on
model)
Su orts multi-core Intel Xeon rocessors, with integrated memory controller and Intel
Ultra Path Interconnect (UPI) architecture.
• Two rocessor sockets (ex andable u to four) with minimal requirement of two
installed on the system board.
• Designed for LGA 3647 sockets
• Scalable u to 28 cores
• Su orts Intel Extended Memory 32/64 Technology (EM32/64T)
Memory See “Memory module installation order” in Setup Guide for detailed information about
memory configuration and setu .
• Minimum: 16 GB
• Maximum:
– RDIMM: 1.5 TB
– LRDIMM: 3 TB
– 3DS-RDIMM: 6 TB
– DC Persistent Memory (DCPMM): 12 TB in Memory Mode
• Memory module ty es:
– Double-data-rate 4 (TruDDR4) error correcting code (ECC) 2666/2933 MT/s
registered DIMM (RDIMM) or load reduced DIMM (LRDIMM)
– DC Persistent Memory (DCPMM)
• Ca acity (de ending on the model):
– 8 GB, 16 GB, 32 GB, and 64 GB RDIMM
– 64 GB LRDIMM
– 64 GB and 128 GB 3DS-RDIMM
– 128 GB, 256 GB, and 512 GB DCPMM
Note: DCPMM can be mixed with DRAM DIMMs with ca acity of more than 16
GB. See for more information.
• Slots: 24 two-way interleaved slots (ex andable to 48)
Note: List of su orted memory module is different for 1st generation (Skylake) and
2nd generation (Cascade Lake) Intel Xeon rocessors. Make sure to install com atible
memory modules to avoid system error. For a list of su orted DIMMs, see: htt s://
static.lenovo.com/us/en/server roven/index.shtml.
Drive ex ansion Sixteen 2.5-inch drive bays:
• Eight 2.5-inch hot-swa SATA/SAS drive bays (bay 0-3, 8-11)
• Eight 2.5-inch hot-swa SATA/SAS/NVMe drive bays (bay 4-7, 12-15)
2ThinkSystem SR850 Maintenance Manual

Table 1. Specifications, Type 7 18 and 7 19 (continued)
Ex ansion slots Eleven ex ansion slots:
• Slot 1: PCI Ex ress 3.0 x16 (su orts PCIe switch card)
• Slot 2: PCI Ex ress 3.0 x8 (su orts RAID ada ters for SATA/SAS drives)
• Slot 3 - 5: PCI Ex ress 3.0 for PCIe riser-card with the following slots available
de ending on the riser-card installed:
– x8/x8/x8 PCIe full-height riser assembly rovides:
– Slot 3: PCI Ex ress 3.0 x8
– Slot 4: PCI Ex ress 3.0 x8
– Slot 5: PCI Ex ress 3.0 x8
– x8/x8/x8ML2 PCIe full-height riser assembly rovides:
– Slot 3: PCI Ex ress 3.0 x8
– Slot 4: PCI Ex ress 3.0 x8
– Slot 5: Customized slot for x8 ML2 ada ter
– x8/x16ML2 PCIe full-height riser assembly rovides:
– Slot 3: PCI Ex ress 3.0 x8
– Slot 4: Not available
– Slot 5: Customized slot for x16 ML2 ada ter
• Slot 6: Customized slot for dual M.2 back lane that su orts M.2 drives in three
different hysical sizes:
– 42 mm (2242)
– 60 mm (2260)
– 80 mm (2280)
• Slot 7: Customized slot for LOM ada ter
• Slot 8: PCI Ex ress 3.0 x8
• Slot 9: PCI Ex ress 3.0 x8
• Slot 10: PCI Ex ress 3.0 x8 (su orts RAID ada ters for SATA/SAS drives)
• Slot 11: PCI Ex ress 3.0 x16 (su orts PCIe switch card)
Integrated functions • Lenovo XClarity Controller (XCC), which rovides service rocessor control and
monitoring functions, video controller, and remote keyboard, video, mouse, and
remote drive ca abilities.
• One system-management RJ-45 connector on the rear to connect to a systems-
management network. This connector is dedicated to the Lenovo XClarity Controller
functions and runs at 1 GB s eed.
• Light- ath diagnostics
• Four universal serial bus (USB) orts:
– Two on the front of the server
– One USB 2.0 with Lenovo XClarity Controller management
– One USB 2.0 or 3.0 (de ending on the model)
– Two USB 3.0 on the rear of the server
• One serial ort
Network This server su orts 1GbE and 10 GbE LOM ada ters with the following requirements:
• 1GbE LOM ada ter: maximal bandwidth of network environment is 1GB.
• 10GbE LOM ada ter: minimal bandwidth of network environment is 1GB.
RAID ada ter(de ending
on model)
The following o tions with su ort for RAID levels 0, 1, and 10 are available for this
server:
• ThinkSystem RAID 530-8i PCIe 12 GB Ada ter
• ThinkSystem RAID 730-8i 1 GB Cache PCIe 12 GB Ada ter
• ThinkSystem RAID 730-8i 2 GB Cache PCIe 12 GB Ada ter
• ThinkSystem RAID 930-8i 2 GB Flash PCIe 12 GB Ada ter
• ThinkSystem RAID 930-16i 4 GB Flash PCIe 12 GB Ada ter
• ThinkSystem RAID 930-8e 4 GB Flash PCIe 12 GB Ada ter
Fans Six (60 mm x 38 mm) internal system fans (N+1 redundancy)
Cha ter 1.Introduction 3

Table 1. Specifications, Type 7 18 and 7 19 (continued)
Electrical in ut This server comes with three ty es of ower su ly units:
• 750-watt latinum ower su ly
– In ut ower 115V or 220V ac
• 1100-watt latinum ower su ly
– In ut ower 115V or 220V ac
• 1600-watt latinum ower su ly
– In ut ower 220V ac
Two ower su lies rovide N+1 redundancy su ort.
CAUTION:
1. 240 V dc input (input range: 180-300 V dc) is ON Y supported in Chinese
Mainland.
2. Power supplies with 240 V dc are not hot-swappable. To remove the power
cord, ensure you have turned off the server or disconnected the dc power
sources at the breaker panel.
3. In order for the ThinkSystem products to operate error free in both a DC or AC
electrical environment, a TN-S earthing system which complies to 60364-1 IEC
2005 standard has to be present or installed.
Minimal configuration for
debugging
• Two rocessors in rocessor socket 1 and 2
• Two DIMMs in slot 8 and 20
• One ower su ly
• One drive with RAID ada ter and back lane (If OS is needed for debugging)
• Six system fans (fan 1 to fan 6)
Acoustical noise emissions • Sound ower, idling
– 5.2 bels, minimum
– 5.8 bels, ty ical
– 6.4 bels, maximum
• Sound ower, o erating
– 5.8 bels, minimum
– 6.8 bels, ty ical
– 7.0 bels, maximum
Heat out ut A roximate heat out ut:
• Minimum configuration: 447 BTU, 131 W (in BTU er hour and watts)
• Maximum configuration: 5265 BTU, 1543 W (in BTU er hour and watts)
4ThinkSystem SR850 Maintenance Manual

Table 1. Specifications, Type 7 18 and 7 19 (continued)
Environment ThinkSystem SR850 com lies with ASHRAE Class A2 s ecifications. De ending on the
hardware configuration, some models com ly with ASHRAE Class A3 and Class A4
s ecifications. System erformance may be im acted when o erating tem erature is
outside ASHRAE A2 s ecification.
• Air tem erature:
– O erating
– ASHRAE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient
tem erature decreases by 1°C for every 300 m (984 ft) increase in altitude
above 900 m (2,953 ft).
– ASHRAE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient
tem erature decreases by 1°C for every 175 m (574 ft) increase in altitude
above 900 m (2,953 ft).
– ASHRAE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient
tem erature decreases by 1°C for every 125 m (410 ft) increase in altitude
above 900 m (2,953 ft).
– Server off: 5°C to 45°C (41°F to 113°F)
– Shi ment/storage: -40°C to 60°C (-40°F to 140°F)
• Maximum altitude: 3,050 m (10,000 ft)
• Relative Humidity (non-condensing):
– O erating
– ASHRAE Class A2: 8% to 80%; maximum dew oint: 21°C (70°F)
– ASHRAE Class A3: 8% to 85%; maximum dew oint: 24°C (75°F)
– ASHRAE Class A4: 8% to 90%; maximum dew oint: 24°C (75°F)
– Shi ment/storage: 8% to 90%
• Particulate contamination
Attention: Airborne articulates and reactive gases acting alone or in combination
with other environmental factors such as humidity or tem erature might ose a risk to
the server. For information about the limits for articulates and gases, see
“Particulate contamination” on age 5.
O erating systems
Su orted and certified o erating systems:
• Microsoft Windows Server
• VMware ESXi
• Red Hat Enter rise Linux
• SUSE Linux Enter rise Server
References:
• Com lete list of available o erating systems: htt s://lenovo ress.com/osig.
• OS de loyment instructions: See “De loy the o erating system” in Setup Guide..
Note: To maintain com onent reliability, system erformance might vary at ambient tem erature higher than
35°C while all the fans are functioning. With one fan failing, system erformance might vary at ambient
tem erature higher than 27°C.
Particulate contamination
Attention: Airborne articulates (including metal flakes or articles) and reactive gases acting alone or in
combination with other environmental factors such as humidity or tem erature might ose a risk to the
device that is described in this document.
Risks that are osed by the resence of excessive articulate levels or concentrations of harmful gases
include damage that might cause the device to malfunction or cease functioning altogether. This
s ecification sets forth limits for articulates and gases that are intended to avoid such damage. The limits
must not be viewed or used as definitive limits, because numerous other factors, such as tem erature or
Cha ter 1.Introduction 5

moisture content of the air, can influence the im act of articulates or environmental corrosives and gaseous
contaminant transfer. In the absence of s ecific limits that are set forth in this document, you must
im lement ractices that maintain articulate and gas levels that are consistent with the rotection of human
health and safety. If Lenovo determines that the levels of articulates or gases in your environment have
caused damage to the device, Lenovo may condition rovision of re air or re lacement of devices or arts
on im lementation of a ro riate remedial measures to mitigate such environmental contamination.
Im lementation of such remedial measures is a customer res onsibility.
Table 2. Limits for particulates and gases
Contaminant imits
Reactive gases Severity level G1 as er ANSI/ISA 71.04-19851:
• The co er reactivity level shall be less than 200 Angstroms er month (Å/month ≈ 0.0035 μg/
cm2-hour weight gain).2
• The silver reactivity level shall be less than 200 Angstroms er month (Å/month ≈ 0.0035 μg/
cm2-hour weight gain).3
• The reactive monitoring of gaseous corrosivity must be conducted a roximately 5 cm (2 in.) in
front of the rack on the air inlet side at one-quarter and three-quarter frame height off the floor
or where the air velocity is much higher.
Airborne
articulates Data centers must meet the cleanliness level of ISO 14644-1 class 8.
For data centers without airside economizer, the ISO 14644-1 class 8 cleanliness might be met by
choosing one of the following filtration methods:
• The room air might be continuously filtered with MERV 8 filters.
• Air entering a data center might be filtered with MERV 11 or referably MERV 13 filters.
For data centers with airside economizers, the choice of filters to achieve ISO class 8 cleanliness
de ends on the s ecific conditions resent at that data center.
• The deliquescent relative humidity of the articulate contamination should be more than 60%
RH.4
• Data centers must be free of zinc whiskers.5
1 ANSI/ISA-71.04-1985. Environmental conditions for process measurement and control systems: Airborne
contaminants. Instrument Society of America, Research Triangle Park, North Carolina, U.S.A.
2 The derivation of the equivalence between the rate of co er corrosion growth in the thickness of the corrosion
roduct in Å/month and the rate of weight gain assumes that Cu2S and Cu2O grow in equal ro ortions.
3 The derivation of the equivalence between the rate of silver corrosion growth in the thickness of the corrosion
roduct in Å/month and the rate of weight gain assumes that Ag2S is the only corrosion roduct.
4 The deliquescent relative humidity of articulate contamination is the relative humidity at which the dust absorbs
enough water to become wet and romote ionic conduction.
5 Surface debris is randomly collected from 10 areas of the data center on a 1.5 cm diameter disk of sticky
electrically conductive ta e on a metal stub. If examination of the sticky ta e in a scanning electron microsco e
reveals no zinc whiskers, the data center is considered free of zinc whiskers.
Firmware updates
Several o tions are available to u date the firmware for the server.
You can use the tools listed here to u date the most current firmware for your server and the devices that are
installed in the server.
• Best ractices related to u dating firmware is available at the following site:
6ThinkSystem SR850 Maintenance Manual

– htt ://lenovo ress.com/LP0656
• The latest firmware can be found at the following site:
– htt ://datacentersu ort.lenovo.com/ roducts/servers/system-x/system-x3850-x6/6241/downloads
• You can subscribe to roduct notification to stay u to date on firmware u dates:
– htt s://datacentersu ort.lenovo.com/tw/en/solutions/ht509500
UpdateXpress System Packs (UXSPs)
Lenovo ty ically releases firmware in bundles called U dateX ress System Packs (UXSPs). To ensure that all
of the firmware u dates are com atible, you should u date all firmware at the same time. If you are u dating
firmware for both the Lenovo XClarity Controller and UEFI, u date the firmware for Lenovo XClarity Controller
first.
Update method terminology
• In-band update. The installation or u date is erformed using a tool or a lication within an o erating
system that is executing on the server’s core CPU.
• Out-of-band update. The installation or u date is erformed by the Lenovo XClarity Controller collecting
the u date and then directing the u date to the target subsystem or device. Out-of-band u dates have no
de endency on an o erating system executing on the core CPU. However, most out-of-band o erations
do require the server to be in the S0 (Working) ower state.
• On-Target update. The installation or u date is initiated from an installed o erating system executing on
the target server itself.
• Off-Target update. The installation or u date is initiated from a com uting device interacting directly with
the server’s Lenovo XClarity Controller.
• UpdateXpress System Packs (UXSPs). UXSPs are bundled u dates designed and tested to rovide the
interde endent level of functionality, erformance, and com atibility. UXSPs are server machine-ty e
s ecific and are built (with firmware and device driver u dates) to su ort s ecific Windows Server, Red
Hat Enter rise Linux (RHEL) and SUSE Linux Enter rise Server (SLES) o erating system distributions.
Machine-ty e-s ecific firmware-only UXSPs are also available.
Firmware updating tools
See the following table to determine the best Lenovo tool to use for installing and setting u the firmware:
Tool Update
Methods
Supported
Core
System
Firmware
Updates
I/O Devices
Firmware
Updates
Graphical
user
interface
Command
line
interface
Supports
UXSPs
enovo XClarity
Provisioning Manager
( XPM)
In-band2
On-Target
√ √
enovo XClarity
Controller
(XCC)
Out-of-band
Off-Target
√Selected I/O
devices
√
enovo XClarity
Essentials OneC I
(OneC I)
In-band
Out-of-band
On-Target
Off-Target
√All I/O
devices
√ √
Cha ter 1.Introduction 7

Tool Update
Methods
Supported
Core
System
Firmware
Updates
I/O Devices
Firmware
Updates
Graphical
user
interface
Command
line
interface
Supports
UXSPs
enovo XClarity
Essentials
UpdateXpress
( XCE)
In-band
Out-of-band
On-Target
Off-Target
√All I/O
devices
√ √
enovo XClarity
Essentials Bootable
Media Creator
(BoMC)
In-band
Out-of-band
Off-Target
√All I/O
devices
√
(BoMC
a lication)
√
(BoMC
a lication)
√
enovo XClarity
Administrator
( XCA)
In-band1
Out-of-
band2
Off-Target
√All I/O
devices
√ √
enovo XClarity
Integrator ( XCI) for
VMware vCenter
Out-of-band
Off-Target
√Selected I/O
devices
√
enovo XClarity
Integrator ( XCI) for
Microsoft Windows
Admin Center
In-band
Out-of-band
On-Target
Off-Target
√All I/O
devices
√ √
enovo XClarity
Integrator ( XCI) for
Microsoft System
Center Configuration
Manager
In-band
On-Target
√All I/O
devices
√ √
Notes:
1. For I/O firmware u dates.
2. For BMC and UEFI firmware u dates.
• enovo XClarity Provisioning Manager
From Lenovo XClarity Provisioning Manager, you can u date the Lenovo XClarity Controller firmware, the
UEFI firmware, and the Lenovo XClarity Provisioning Manager software.
Note: By default, the Lenovo XClarity Provisioning Manager Gra hical User Interface is dis layed when
you start the server and ress the key s ecified in the on-screen instructions. If you have changed that
default to be the text-based system setu , you can bring u the Gra hical User Interface from the text-
based system setu interface.
For additional information about using Lenovo XClarity Provisioning Manager to u date firmware, see:
8ThinkSystem SR850 Maintenance Manual

“Firmware U date” section in the LXPM documentation com atible with your server at htt s://
sysmgt.lenovofiles.com/hel /to ic/lx m_frontend/lx m_ roduct_ age.html
Important: Lenovo XClarity Provisioning Manager (LXPM) su orted version varies by roduct. All
versions of Lenovo XClarity Provisioning Manager are referred to as Lenovo XClarity Provisioning Manager
and LXPM in this document, unless s ecified otherwise. To see the LXPM version su orted by your
server, go to htt s://sysmgt.lenovofiles.com/hel /to ic/lx m_frontend/lx m_ roduct_ age.html.
• enovo XClarity Controller
If you need to install a s ecific u date, you can use the Lenovo XClarity Controller interface for a s ecific
server.
Notes:
– To erform an in-band u date through Windows or Linux, the o erating system driver must be installed
and the Ethernet-over-USB (sometimes called LAN over USB) interface must be enabled.
For additional information about configuring Ethernet over USB, see:
“Configuring Ethernet over USB” section in the XCC documentation version com atible with your
server at htt s://sysmgt.lenovofiles.com/hel /to ic/lxcc_frontend/lxcc_overview.html
– If you u date firmware through the Lenovo XClarity Controller, make sure that you have downloaded
and installed the latest device drivers for the o erating system that is running on the server.
For additional information about using Lenovo XClarity Controller to u date firmware, see:
“U dating Server Firmware” section in the XCC documentation com atible with your server at htt s://
sysmgt.lenovofiles.com/hel /to ic/lxcc_frontend/lxcc_overview.html
Important: Lenovo XClarity Controller (XCC) su orted version varies by roduct. All versions of Lenovo
XClarity Controller are referred to as Lenovo XClarity Controller and XCC in this document, unless
s ecified otherwise. To see the XCC version su orted by your server, go to htt s://
sysmgt.lenovofiles.com/hel /to ic/lxcc_frontend/lxcc_overview.html.
• enovo XClarity Essentials OneC I
Lenovo XClarity Essentials OneCLI is a collection of command line a lications that can be used to
manage Lenovo servers. Its u date a lication can be used to u date firmware and device drivers for
your servers. The u date can be erformed within the host o erating system of the server (in-band) or
remotely through the BMC of the server (out-of-band).
For additional information about using Lenovo XClarity Essentials OneCLI to u date firmware, see:
htt ://sysmgt.lenovofiles.com/hel /to ic/toolsctr_cli_lenovo/onecli_c_u date.html
• enovo XClarity Essentials UpdateXpress
Lenovo XClarity Essentials U dateX ress rovides most of OneCLI u date functions through a gra hical
user interface (GUI). It can be used to acquire and de loy U dateX ress System Pack (UXSP) u date
ackages and individual u dates. U dateX ress System Packs contain firmware and device driver
u dates for Microsoft Windows and for Linux.
You can obtain Lenovo XClarity Essentials U dateX ress from the following location:
htt s://datacentersu ort.lenovo.com/solutions/lnvo-x ress
• enovo XClarity Essentials Bootable Media Creator
You can use Lenovo XClarity Essentials Bootable Media Creator to create bootable media that is suitable
for firmware u dates, VPD u dates, inventory and FFDC collection, advanced system configuration, FoD
Keys management, secure erase, RAID configuration, and diagnostics on su orted servers.
You can obtain Lenovo XClarity Essentials BoMC from the following location:
Cha ter 1.Introduction 9

htt s://datacentersu ort.lenovo.com/solutions/lnvo-bomc
• enovo XClarity Administrator
If you are managing multi le servers using the Lenovo XClarity Administrator, you can u date firmware for
all managed servers through that interface. Firmware management is sim lified by assigning firmware-
com liance olicies to managed end oints. When you create and assign a com liance olicy to managed
end oints, Lenovo XClarity Administrator monitors changes to the inventory for those end oints and flags
any end oints that are out of com liance.
For additional information about using Lenovo XClarity Administrator to u date firmware, see:
htt ://sysmgt.lenovofiles.com/hel /to ic/com.lenovo.lxca.doc/u date_fw.html
• enovo XClarity Integrator offerings
Lenovo XClarity Integrator offerings can integrate management features of Lenovo XClarity Administrator
and your server with software used in a certain de loyment infrastructure, such as VMware vCenter,
Microsoft Admin Center, or Microsoft System Center.
For additional information about using Lenovo XClarity Integrator to u date firmware, see:
htt s://sysmgt.lenovofiles.com/hel /to ic/lxci/lxci_ roduct_ age.html
Tech Tips
Lenovo continually u dates the su ort website with the latest ti s and techniques that you can use to solve
issues that your server might encounter. These Tech Ti s (also called retain ti s or service bulletins) rovide
rocedures to work around issues or solve roblems related to the o eration of your server.
To find the Tech Ti s available for your server:
1. Go to htt ://datacentersu ort.lenovo.com and navigate to the su ort age for your server.
2. Click on How To’s from the navigation ane.
3. Click Article Type ➙ Solution from the dro -down menu.
Follow the on-screen instructions to choose the category for the roblem that you are having.
Security advisories
Lenovo is committed to develo ing roducts and services that adhere to the highest security standards in
order to rotect our customers and their data. When otential vulnerabilities are re orted, it is the
res onsibility of the Lenovo Product Security Incident Res onse Team (PSIRT) to investigate and rovide
information to our customers so they may ut mitigation lans in lace as we work toward roviding
solutions.
The list of current advisories is available at the following site:
htt s://datacentersu ort.lenovo.com/ roduct_security/home
Power on the server
After the server erforms a short self-test ( ower status LED flashes quickly) when connected to in ut ower,
it enters a standby state ( ower status LED flashes once er second).
The server can be turned on ( ower LED on) in any of the following ways:
• You can ress the ower button.
• The server can restart automatically after a ower interru tion.
10 ThinkSystem SR850 Maintenance Manual

• The server can res ond to remote ower-on requests sent to the Lenovo XClarity Controller.
For information about owering off the server, see “Power off the server” on age 11.
Power off the server
The server remains in a standby state when it is connected to a ower source, allowing the Lenovo XClarity
Controller to res ond to remote ower-on requests. To remove all ower from the server ( ower status LED
off), you must disconnect all ower cables.
To lace the server in a standby state ( ower status LED flashes once er second):
Note: The Lenovo XClarity Controller can lace the server in a standby state as an automatic res onse to a
critical system failure.
• Start an orderly shutdown using the o erating system (if su orted by your o erating system).
• Press the ower button to start an orderly shutdown (if su orted by your o erating system).
• Press and hold the ower button for more than 4 seconds to force a shutdown.
When in a standby state, the server can res ond to remote ower-on requests sent to the Lenovo XClarity
Controller. For information about owering on the server, see “Power on the server” on age 10.
Cha ter 1.Introduction 11

12 ThinkSystem SR850 Maintenance Manual