HP ZBook 15u G5 User Manual

Items Procedures
5. If external video is OK, update BIOS, software, and drivers (4. Update BIOS and drivers
on page 90) and perform soft reset (9. Soft reset (Default Settings) on page 99) if
needed. Go to next step to verify display.
Verify display
●
When booting to Windows, determine whether image appears on display screen (via
Windows Screen Solutions or Windows logo + P for display switcher).
●
If there is video on display, disconnect external display device, open the computer lid
and restart.
The sections below are intended for authorized service providers/technicians.
1. Verify Power Good lights are on to be sure that system board power is functional.
2. Reseat display cable connection on system board.
3. Reseat display cable connection on display panel side.
4. Examine and reseat major components, such as hard drive, memory.
5. Test with minimum conguration (11. Test with minimum conguration on page 100)
by removing hard drive to isolate operating system issues and testing video in F10
Setup.
6. If video is present, restart and retest the computer.
7. If video is present but bad, go to Display on page 123 section.
8. If issue persists (no video), test with external video.
9. If issue persists, test or replace a conrmed working display.
10. If issue persists, replace discrete graphics card.
11. If issue persists, replace system board due to defective video function.
Tips and tricks Swipe a metal piece (screwdriver) over wireless/mute buttons to act as if closing lid to force
video output to external display device. See the “External component identication –
Display” section for location of the magnetic sensor.
Blinking lights
Items Procedures
Symptoms
Lights blink on keyboard caps
lock/num lock keys
Possible causes
Blinking lights on startup usually indicate a problem with basic functionality of a critical
component (processor, BIOS, graphics cards, memory, etc.) due to loose connection,
defective parts, or recently added parts.
Troubleshooting steps
1. Check for any blink patterns. Count the number of blinks in a sequence, followed by a
pause for a few seconds.
2. See Status, Blinking Lights, and Error Message (7. Status lights, blinking light codes,
troubleshooting lights, and POST error messages on page 95) for corrective actions.
112 Chapter 8 Troubleshooting guide

HP ZBook 15u G5 Specifications

General

Form factor	Clamshell
Product type	Mobile workstation
Product color	Gray
Country of origin	China
Panel type	UWVA
Touchscreen	-
LED backlight	Yes
Display diagonal	15.6 \
Native aspect ratio	16:9
Memory slots	2x SO-DIMM
Memory clock speed	2400 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR4-SDRAM
Maximum internal memory	32 GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
Storage media	SSD
Total storage capacity	512 GB
Compatible memory cards	SD, SDHC, SDXC
Number of SSDs installed	1
Number of built-in speakers	2
HP segment	Business
HP speaker type	HP Dual Speakers
Front camera HD type	HD
HDMI version	1.4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Pointing device	Touchpad
AC adapter power	- W
On-board graphics card ID	0x5917
On-board graphics card model	Intel® UHD Graphics 620
On-board graphics card family	Intel® UHD Graphics
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	300 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1150 MHz
Battery capacity	56 Wh
Number of battery cells	3
Bus type	OPI
Stepping	Y0
Tjunction	100 °C
Processor cache	8 MB
Processor cores	4
System bus rate	4 GT/s
Processor family	Intel® Core™ i7
Processor socket	BGA 1356
Processor threads	8
Processor codename	Kaby Lake R
Configurable TDP-up	25 W
Processor frequency	1.9 GHz
Configurable TDP-down	10 W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	4.2 GHz
Processor operating modes	64-bit
PCI Express configurations	1x2+2x1, 1x4, 2x2, 4x1
Thermal Design Power (TDP)	15 W
Configurable TDP-up frequency	2.1 GHz
Configurable TDP-down frequency	0.8 GHz
Maximum number of PCI Express lanes	12
Processor code	SR3L8
Processor ARK ID	124968
Processor package size	42 x 24 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	251 mm
Width	370.8 mm
Height	18.6 mm
Weight	1770 g