Dell Precision 7520 User Manual

Working on your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise
noted, each procedure included in this document assumes that the following conditions exist:
• You have read the safety information that shipped with your computer.
• A component can be replaced or, if purchased separately, installed by performing the removal procedure in the reverse order.
WARNING: Disconnect all power sources before opening the computer cover or panels. After you nish working inside the
computer, replace all covers, panels, and screws before connecting to the power source.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional
safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance
CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an
unpainted metal surface that is grounded to ground yourself before you touch the computer to perform any disassembly tasks.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its
edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have
connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the
cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a
cable, ensure that both connectors are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear dierently than shown in this document.
Turning o your — Windows
CAUTION
: To avoid losing data, save and close all open les and exit all open programs before you turn o your computer .
1
Click or tap .
2 Click or tap and then click or tap Shut down.
NOTE
: Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not
automatically turn o when you shut down your operating system, press and hold the power button for about 6 seconds to
turn them o.
Before working inside your computer
1 Ensure that your work surface is at and clean to prevent the computer cover from being scratched.
2 Turn o your computer.
3 If the computer is connected to a docking device (docked), undock it.
1
Working on your computer 7

Dell Precision 7520 Specifications

General

Form factor	Clamshell
Product type	Mobile workstation
Product color	Black
Memory slots	4x SO-DIMM
Internal memory	8 GB
Memory clock speed	2400 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR4-SDRAM
Maximum internal memory	64 GB
Memory layout (slots x size)	1 x 8 GB
3D	No
AC adapter included	Yes
HDD speed	7200 RPM
HDD interface	SATA III
Storage media	HDD
Total storage capacity	500 GB
Compatible memory cards	SD, SDHC, SDXC
Number of HDDs installed	1
Display surface	Matt
Display diagonal	15.6 \
Native aspect ratio	16:9
On-board graphics card ID	0x591B
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 630
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1000 MHz
Audio system	MaxxAudio Pro
Speakers manufacturer	Waves
Wi-Fi standards	Wi-Fi 5 (802.11ac)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
ExpressCard slot	-
Charging port type	DC-in jack
USB 2.0 ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
Pointing device	Touchpad
Operating system architecture	64-bit
Battery capacity	72 Wh
Number of battery cells	6
AC adapter power	180 W
AC adapter frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	9.23 A
AC adapter output voltage	19.5 V
Operating shock	140 G
Operating altitude	-15.2 - 3048 m
Non-operating shock	163 G
Operating vibration	0.66 G
Non-operating altitude	-15.2 - 10668 m
Non-operating vibration	1.3 G
Storage temperature (T-T)	-40 - 65 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Bus type	DMI3
Tjunction	100 °C
Processor cache	6 MB
Processor model	i5-7300HQ
System bus rate	8 GT/s
Processor family	Intel® Core™ i5
Processor series	Intel Core i5-700 Desktop Series
Processor codename	Kaby Lake
Processor frequency	2.5 GHz
Configurable TDP-down	35 W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.5 GHz
PCI Express configurations	1x16, 1x8+2x4, 2x8
Thermal Design Power (TDP)	45 W
Maximum number of PCI Express lanes	16
Processor ARK ID	97456
Processor package size	42 x 28 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Identity Protection Technology version	1.00
Intel Stable Image Platform Program (SIPP) version	0.00
Motherboard chipset	Intel® CM238
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth	261 mm
Width	378 mm
Weight	2800 g
Height (rear)	33 mm
Height (front)	27.76 mm