HP Z8 G4 Manual

Maintenance and Service Guide
HP Z8 G4 Workstation

© Copyright 2017 HP Development Company,
L.P.
Product notice
AMD is a trademark of Advanced Micro Devices,
Inc. Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel, Core, and Celeron are trademarks of Intel
Corporation in the U.S. and other countries.
Microsoft and Windows are either registered
trademarks or trademarks of Microsoft
Corporation in the United States and/or other
countries. SD Logo is a trademark of
its proprietor.
This guide describes features that are common
to most models. Some features may not be
available on your computer.
Not all features are available in all editions of
Windows 10. This computer may require
upgraded and/or separately purchased
hardware, drivers and/or software to take full
advantage of Windows 10 functionality. See
http://www.microsoft.com for details.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed as
constituting an additional warranty. HP shall not
be liable for technical or editorial errors or
omissions contained herein.
The information contained herein is subject to
change without notice. The only warranties for
HP products and services are set forth in
the express warranty statements accompanying
such products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable for
technical or editorial errors or omissions
contained herein.
Second Edition: November 2017
First Edition: October 2017
Document Part Number: 932087-002
Software terms
By installing, copying, downloading, or otherwise
using any software product preinstalled on this
computer, you agree to be bound by the terms
of the HP End User License Agreement (EULA). If
you do not accept these license terms, your sole
remedy is to return the entire unused product
(hardware and software) within 14 days for a full
refund subject to the refund policy of your seller.

About This Book
WARNING! Text set o in this manner indicates that failure to follow directions could result in bodily harm or
loss of life.
CAUTION: Text set o in this manner indicates that failure to follow directions could result in damage to
equipment or loss of information.
NOTE: Text set o in this manner provides important supplemental information.
iii

iv About This Book

Table of contents
1 Product features ....................................................................................................................................................................................... 1
Standard conguration features ............................................................................................................................................ 1
Front panel components ......................................................................................................................................................... 2
Left-side components ............................................................................................................................................................. 4
Rear panel components .......................................................................................................................................................... 5
2 Illustrated parts catalog ........................................................................................................................................................................... 6
Serial number location ............................................................................................................................................................. 6
Computer major components ................................................................................................................................................ 6
3 Routine care, SATA drive guidelines, and disassembly preparation ............................................................................................... 10
Electrostatic discharge information .................................................................................................................................... 10
Generating static ............................................................................................................................................... 10
Preventing electrostatic damage to equipment ........................................................................................... 11
Personal grounding methods and equipment .............................................................................................. 11
Grounding the work area .................................................................................................................................. 11
Recommended materials and equipment ..................................................................................................... 12
Operating guidelines .............................................................................................................................................................. 12
Routine care ............................................................................................................................................................................ 13
General cleaning safety precautions .............................................................................................................. 13
Cleaning the computer case ............................................................................................................................ 13
Cleaning the keyboard ...................................................................................................................................... 13
Cleaning the monitor ........................................................................................................................................ 14
Service considerations .......................................................................................................................................................... 14
Tools and software requirements .................................................................................................................. 14
Screws ................................................................................................................................................................. 14
Cables and connectors ..................................................................................................................................... 15
Hard Drives ......................................................................................................................................................... 15
Lithium coin cell battery ................................................................................................................................... 15
SATA hard drives ..................................................................................................................................................................... 16
SMART ATA drives ................................................................................................................................................................... 16
4 Removal and replacement procedures .............................................................................................................................................. 17
Preparation for disassembly ................................................................................................................................................ 17
Top cover ................................................................................................................................................................................. 18
Front bezel .............................................................................................................................................................................. 19
v

Right panel .............................................................................................................................................................................. 20
Power supply .......................................................................................................................................................................... 21
Access panel ........................................................................................................................................................................... 22
Storage device ........................................................................................................................................................................ 23
Interior covers ......................................................................................................................................................................... 24
Rear fan ................................................................................................................................................................................... 25
Optical drive ............................................................................................................................................................................ 26
Internal PCIe bracket ............................................................................................................................................................. 27
Memory fan ............................................................................................................................................................................. 28
I/O assembly ........................................................................................................................................................................... 29
Front card guide and fans ..................................................................................................................................................... 31
System board .......................................................................................................................................................................... 32
Heat sink .................................................................................................................................................................................. 34
Processor ................................................................................................................................................................................. 35
5 Computer Setup (F10) Utility ................................................................................................................................................................ 37
Computer Setup (F10) Utilities ............................................................................................................................................ 37
Using Computer Setup (F10) Utilities ............................................................................................................. 38
Computer Setup–Main ...................................................................................................................................... 39
Computer Setup—Security .............................................................................................................................. 41
Computer Setup—Advanced ........................................................................................................................... 43
Recovering the Conguration Settings ............................................................................................................................... 47
6 Troubleshooting without diagnostics ................................................................................................................................................. 48
Safety and comfort ................................................................................................................................................................ 48
Before you call for technical support .................................................................................................................................. 48
Helpful hints ............................................................................................................................................................................ 49
Solving general problems ..................................................................................................................................................... 50
Solving power problems ....................................................................................................................................................... 53
Solving hard drive problems ................................................................................................................................................ 53
Solving media card reader problems .................................................................................................................................. 55
Solving display problems ...................................................................................................................................................... 57
Solving audio problems ........................................................................................................................................................ 60
Solving printer problems ...................................................................................................................................................... 62
Solving keyboard and mouse problems ............................................................................................................................. 64
Solving hardware installation problems ............................................................................................................................. 65
Solving network problems .................................................................................................................................................... 66
Solving memory problems ................................................................................................................................................... 68
Solving USB ash drive problems ........................................................................................................................................ 70
Solving front panel component problems ......................................................................................................................... 70
Solving Internet access problems ....................................................................................................................................... 71
vi

Solving software problems .................................................................................................................................................. 72
7 POST error messages and diagnostic front panel LEDs and audible codes ................................................................................. 73
POST numeric codes and text messages ........................................................................................................................... 73
Interpreting system validation diagnostic front panel LEDs and audible codes .......................................................... 78
8 Password security and resetting CMOS .............................................................................................................................................. 80
Resetting CMOS and/or the password jumper .................................................................................................................. 81
Changing a Setup or Power-on password ......................................................................................................................... 83
Deleting a Setup or Power-on password ........................................................................................................................... 83
9 Using HP PC Hardware Diagnostics (UEFI) .......................................................................................................................................... 84
Using HP PC Hardware Diagnostics Windows ................................................................................................................... 84
Downloading HP PC Hardware Diagnostics Windows ................................................................................. 85
Downloading the latest HP PC Hardware Diagnostics Windows version ............................. 85
Downloading HP Hardware Diagnostics Windows by product name or number
(select products only) ................................................................................................................... 85
Installing HP PC Hardware Diagnostics Windows ......................................................................................... 85
Using HP PC Hardware Diagnostics UEFI ....................................................................................................... 86
Starting HP PC Hardware Diagnostics UEFI .............................................................................. 86
Downloading HP PC Hardware Diagnostics UEFI to a USB device ......................................... 86
Downloading the latest HP PC Hardware Diagnostics UEFI version ................ 87
Downloading HP PC Hardware Diagnostics UEFI by product name or
number (select products only) ............................................................................... 87
Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ................................. 87
Downloading Remote HP PC Hardware Diagnostics UEFI ...................................................... 87
Downloading the latest Remote HP PC Hardware Diagnostics UEFI
version ....................................................................................................................... 87
Downloading Remote HP PC Hardware Diagnostics UEFI by product
name or number ...................................................................................................... 87
Customizing Remote HP PC Hardware Diagnostics UEFI settings ........................................ 88
10 System backup and recovery ............................................................................................................................................................. 89
Backing up, restoring, and recovering in Windows 10 ..................................................................................................... 89
Creating recovery media and backups ........................................................................................................... 89
Creating HP Recovery media (select products only) ............................................................... 89
Using Windows tools ......................................................................................................................................... 90
Restore and recovery ........................................................................................................................................ 91
Recovering using HP Recovery Manager ................................................................................... 91
What you need to know before you get started ................................................. 91
Using the HP Recovery partition (select products only) .................................... 92
vii

Using HP Recovery media to recover .................................................................... 92
Changing the computer boot order ....................................................................... 93
Removing the HP Recovery partition (select products only) ............................ 93
Appendix A Battery replacement ............................................................................................................................................................ 94
Appendix B Statement of memory volatility ......................................................................................................................................... 97
Current BIOS steps ................................................................................................................................................................. 97
Nonvolatile memory usage .................................................................................................................................................. 99
Questions and answers ...................................................................................................................................................... 101
Using HP Sure Start (select models only) ........................................................................................................................ 102
Appendix C Specications ...................................................................................................................................................................... 103
Appendix D Linux technical notes ......................................................................................................................................................... 105
System RAM .......................................................................................................................................................................... 105
Audio ...................................................................................................................................................................................... 106
Network cards ...................................................................................................................................................................... 106
Hyper-Threading Technology ............................................................................................................................................ 106
NVIDIA Graphics Workstations ........................................................................................................................................... 107
Index ........................................................................................................................................................................................................... 108
viii

1 Product features
Standard conguration features
Features may vary depending on the model.
Standard conguration features 1

Front panel components
NOTE: Refer to the illustration that most closely matches your computer. The computer model in the following
image features the premium front input/output module.
Item Icon Component
(1) Power button
(2) Drive light
(3) Audio-out (headphone)/Audio-in (microphone) combo jack
(4) USB 3.x SuperSpeed port with HP Sleep and Charge
(5) USB 3.x SuperSpeed port
(6) USB Type-C ports (2)
(7) Memory card reader
(8) Optical drive
NOTE: Refer to the illustration that most closely matches your computer. The computer model in the following
image features the standard front input/output module.
2 Chapter 1 Product features

Item Icon Component
(1) Power button
(2) Drive light
(3) Audio-out (headphone)/Audio-in (microphone) combo jack
(4) USB 3.x SuperSpeed port with HP Sleep and Charge
(5) USB 3.x SuperSpeed ports (3)
(6) Memory card reader
(7) Optical drive
Front panel components 3

Left-side components
Item Component
(1) Access panel handle
(2) Access panel lock
4 Chapter 1 Product features

Rear panel components
Item Icon Component Item Icon Component
(1) Power button
On: The computer is on.
Blinking white: The hard drive is being
accessed.
(8) PS/2 keyboard jack
(2) Security cable slot (9) PS/2 mouse jack
(3) Power connector (10) Audio-in (microphone) jack
(4) Serial port (11) Audio-out (headphone)
(5) USB 3.x SuperSpeed ports (6) (12) Ethernet ports (2; select products only)
(6) RJ-45 (network) jack (13) PCIe slots (7)
(7) RJ-45 (network) jack (AMT enabled)
Rear panel components 5

2 Illustrated parts catalog
Serial number location
Each computer has a unique serial number and a product ID number that are located on the exterior of
the computer. Keep these numbers available for use when contacting support for assistance. [issue — email
sent regarding serial number location]
Computer major components
Description
System boards (includes replacement thermal material):
Equipped with the Windows 10 operating system
Equipped with a non-Windows operating system
Processors (featuring Intel® vPro™ technology):
Intel® Xeon™ Platinum 8180 2.50-GHz (Turbo Boost 3.80-GHz) processor (38.50-MB cache, 28 cores, 205-W TDP)
Intel Xeon Platinum 8160 2.10-GHz (Turbo Boost 3.70-GHz) processor (33.00-MB cache, 24 cores, 150-W TDP)
Intel Xeon Gold 6154 3.00-GHz (Turbo Boost 3.70-GHz) processor (24.75-MB cache, 18 cores, 200-W TDP)
Intel Xeon Gold 6152 2.10-GHz (Turbo Boost 3.70-GHz) processor (30.25-MB cache, 22 cores, 140-W TDP)
Intel Xeon Gold 6148 2.40-GHz (Turbo Boost 3.70-GHz) processor (27.50-MB cache, 20 cores, 150-W TDP)
Intel Xeon Gold 6142 2.60-GHz (Turbo Boost 3.70-GHz) processor (22.00-MB cache, 16 cores, 150-W TDP)
Intel Xeon Gold 6140 2.30-GHz (Turbo Boost 3.70-GHz) processor (24.75-MB cache, 18 cores, 140-W TDP)
Intel Xeon Gold 6136 3.00-GHz (Turbo Boost 3.70-GHz) processor (24.75-MB cache, 12 cores, 150-W TDP)
Intel Xeon Gold 6134 3.20-GHz (Turbo Boost 3.70-GHz) processor (24.75-MB cache, 8 cores, 130-W TDP)
6 Chapter 2 Illustrated parts catalog

Description
Intel Xeon Gold 6132 2.60-GHz (Turbo Boost 3.70-GHz) processor (19.25-MB cache, 14 cores, 140-W TDP)
Intel Xeon Gold 6130 2.10-GHz (Turbo Boost 3.70-GHz) processor (22.00-MB cache, 16 cores, 125-W TDP)
Intel Xeon Gold 6128 3.40-GHz (Turbo Boost 3.70-GHz) processor (19.25-MB cache, 6 cores, 115-W TDP)
Intel Xeon Gold 5122 3.60-GHz (Turbo Boost 3.70-GHz) processor (16.50-MB cache, 4 cores, 105-W TDP)
Intel Xeon Gold 5120 2.20-GHz (Turbo Boost 3.20-GHz) processor (19.25-MB cache, 14 cores, 105-W TDP)
Intel Xeon Gold 5118 2.30-GHz (Turbo Boost 3.20-GHz) processor (16.50-MB cache, 12 cores, 105-W TDP)
Intel Xeon Silver 4116 2.10-GHz (Turbo Boost 3.00-GHz) processor (16.50-MB cache, 12 cores, 85-W TDP)
Intel Xeon Silver 4114 2.20-GHz (Turbo Boost 3.00-GHz) processor (13.75-MB cache, 10 cores, 85-W TDP)
Intel Xeon Silver 4112 2.60-GHz (Turbo Boost 3.00-GHz) processor (8.25-MB cache, 4 cores, 85-W TDP)
Intel Xeon Silver 4108 1.80-GHz (Turbo Boost 3.00-GHz) processor (11.00-MB cache, 8 cores, 85-W TDP)
Intel Xeon Bronze 3106 1.70-GHz processor (11.00-MB cache, 8 cores, 85-W TDP)
Intel Xeon Bronze 3104 1.70-GHz processor (8.25-MB cache, 6 cores, 85-W TDP)
I/O assembly:
Premium (includes audio-out [headphone]/audio-in [microphone] combo jack [with cable], drive light, memory card reader [select
products only], power button [with cable], USB 3.x SuperSpeed port with HP Sleep and Charge, USB 3.x SuperSpeed port, USB Type-C
ports [2], and speaker [with cable])
Entry-level (includes audio-out [headphone]/audio-in [microphone] combo jack [with cable], drive light, memory card reader [select
products only], power button [with cable], USB 3.x SuperSpeed port with HP Sleep and Charge, USB 3.x SuperSpeed ports [3], and speaker
[with cable])
Networking:
10-GBE Network Module Kit
Intel PRO/1000 single port GBE
Intel 1350 1-GBE PCIeG2×4 2p network interface card (NIC)
X550 10-GBE PCIeG3×4 2p NIC
X710 10-GB PCIeG3×8 2p NIC
Hard drive:
4-TB, 7200-rpm, SATA, 6-Gb/s
2-TB, 7200-rpm, SATA, 6-Gb/s
1-TB, 7200-rpm, SATA 3, 6-Gb/s
500-GB, 7200-rpm, SATA 3, 6-Gb/s
500-GB, 7200-rpm, small form factor (SFF) with self-encryption (SED)
300-GB, 7200-rpm, SFF, 15K SAS 12G
Memory (dual in-line memory module [DIMM]):
64-GB, PC4-2666V-L, 2-GB×4 CL19
32-GB, PC4-2666V-R, 2-GB×4 CL19
16-GB, PC4-2666V-R, 2-GB×4 CL19
Computer major components 7

Description
8-GB, PC4-2666V-R, 1-GB×8 CL19
HP Solid-state drives for workstations:
2-TB, SATA solid-state drive
1-TB, SATA solid-state drive
512-GB, SATA SED OPAL2 solid-state drive
512-GB, SATA solid-state drive
480-GB, SATA Enterprise solid-state drive
256-GB, SATA SED OPAL2 solid-state drive
256-GB, SATA solid-state drive
240-GB, SATA Enterprise solid-state drive
HP PCIe solid state drives for workstations:
HP Z Turbo Drive 1-TB MLC Z8G4 solid-state drive
HP Z Turbo Drive 512-GB MLC Z8G4 solid-state drive
HP Z Turbo Drive 256-GB MLC Z8G4 solid-state drive
HP Z Turbo Drive 1-TB TLC Z8G4 solid-state drive
HP Z Turbo Drive 512-GB TLC Z8G4 solid-state drive
HP Z Turbo Drive 256-GB TLC Z8G4 solid-state drive
HP Z Turbo Drive 512-GB Z8G4 SED solid-state drive
HP Z Turbo Drive 512-GB Z8G4 SED solid-state drive
PCIe Solid State Drive Kits (includes Dual M.2 solid-state drive and carrier) for workstations:
HP Z Turbo Drive 1-TB MLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 512-GB MLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 256-GB MLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 1-TB TLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 512-GB TLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 256-GB TLC Z8G4 Solid-State Drive Kit
HP Z Turbo Drive 512-GB Z8G4 SED Solid-State Drive Kit
HP Z Turbo Drive 512-GB Z8G4 SED Solid-State Drive Kit
HP Z Turbo Drive Quad Pro solid state drives for workstations:
HP Z Turbo Drive Quad Pro 2×1-TB PCIe solid-state drive
HP Z Turbo Drive Quad Pro 2×512-GB PCIe solid-state drive
HP Z Turbo Drive Quad Pro 2×256-GB PCIe solid-state drive
HP Z Turbo Drive Quad Pro 1-TB solid-state drive
HP Z Turbo Drive Quad Pro 512-GB solid-state drive
8 Chapter 2 Illustrated parts catalog

Description
HP Z Turbo Drive Quad Pro 256-GB solid-state drive
Graphics cards:
FirePro W2100 2GB graphics card
NVIDIA Quadro P6000 24GB graphics card
NVIDIA Quadro P5000 16GB graphics card
NVIDIA Quadro P4000 8GB graphics card
NVIDIA Quadro P2000 5GB graphics card
NVIDIA Quadro P1000 4GB graphics card
NVIDIA Quadro P600 2GB graphics card
NVIDIA Quadro P400 2GB graphics card
Radeon Pro WX 7100 8GB graphics card
Radeon Pro WX 3100 4GB graphics card
Computer major components 9

3 Routine care, SATA drive guidelines, and
disassembly preparation
This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.
CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system
board. The power cord must be disconnected from the power source before opening the computer to prevent
system board or component damage.
Electrostatic discharge information
A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive devices
or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to
electrostatic discharge (ESD) may not appear to be aected at all and can work perfectly throughout a normal
cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its
life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains
enough power to alter device parameters or melt silicon junctions.
Generating static
The following table shows how humidity aects the electrostatic voltage levels generated by dierent activities.
A product can be degraded by 700 volts.
●Dierent activities generate dierent amounts of static electricity.
●Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs from plastic tube
7,500 V
3,000 V
400 V
400 V
15,000 V
5,000 V
800 V
700 V
35,000 V
12,000 V
6,000 V
2,000 V
Removing DIPs from vinyl tray
Removing DIPs from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
2,000 V
3,500 V
7,000 V
5,000 V
4,000 V
5,000 V
20,000 V
11,000 V
11,500 V
14,500 V
26,500 V
21,000 V
10 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Preventing electrostatic damage to equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of
sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric
components and accessories.
●To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
●Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers
or packaging.
●Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
●Place items on a grounded surface before removing them from their containers.
●Always be properly grounded when touching a sensitive component or assembly.
●Avoid contact with pins, leads, or circuitry.
●Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.
Personal grounding methods and equipment
Use the following equipment to prevent static electricity damage to equipment:
●Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To
provide proper ground, a strap must be worn snugly against bare skin. The ground cord must be connected
to the banana plug connector on the grounding mat or workstation and t snugly into it.
●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most
types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with a
maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Grounding the work area
To prevent static damage at the work area, observe the following precautions:
●Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to
the work surface and use properly grounded tools and equipment.
●Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●Handle electrostatic-sensitive components, parts, and assemblies by the case or PCB laminate. Handle
them only at static-free work areas.
●Turn o power and input signals before inserting and removing connectors or test equipment.
●Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
●Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
●Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
Electrostatic discharge information 11

Recommended materials and equipment
The following grounding equipment is recommended to prevent electrostatic damage:
●Antistatic tape
●Antistatic smocks, aprons, or sleeve protectors
●Conductive bins and other assembly or soldering aids
●Conductive foam
●Conductive tabletop workstations with ground cords of one-megohm +/- 10% resistance
●Static-dissipative table or oor mats with hard ties to ground
●Field service kits
●Static awareness labels
●Wrist straps and footwear straps providing one-megohm +/- 10% resistance
●Material handling packages
●Conductive plastic bags
●Conductive plastic tubes
●Conductive tote boxes
●Opaque shielding bags
●Transparent metallized shielding bags
●Transparent shielding tubes
Operating guidelines
To prevent overheating and to help prolong the life of the computer:
●Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
●Operate the computer on a sturdy, level surface. Leave a 10.2 cm (4-inch) clearance on all vented sides of
the computer and above the monitor to permit the required airow.
●Never restrict the airow into the computer by blocking any vents or air intakes. Do not place the keyboard,
with the keyboard feet down, directly against the front of the desktop unit as this also restricts airow.
●Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign matter can
block the vents and limit the airow. Be sure to unplug the computer before cleaning the air vents.
●Never operate the computer with the cover or side panel removed.
●Do not stack computers on top of each other or place computers so near each other that they are subject
to each other’s re-circulated or preheated air.
●If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be
provided on the enclosure, and the same operating guidelines listed above will still apply.
●Keep liquids away from the computer and keyboard.
●Never cover the ventilation slots on the monitor with any type of material.
●Install or enable power management functions of the operating system or other software, including
sleep states.
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation