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Diagnostics error messages

Symptoms

●

Computer has power

●

POST error message displays

(Windows logo has not yet

appeared)

Possible causes

Diagnostic error messages indicate a problem. There may be a problem with the instruction

being sent from the BIOS to a hardware component (e.g., keyboard failures), or

incompatible hardware. Can usually be resolved by installing updated rmware for the

component.

Troubleshooting steps

1. See 7. Status lights, blinking light codes, troubleshooting lights, and POST error

messages on page 92 for corrective actions. An example of a POST error message is

shown below.

2. If there is power, you may be able to access BIOS. Reset BIOS to its default condition.

(9. Soft reset (Default Settings) on page 96)

3. Restore hardware to its original condition (i.e., bootable solid-state drive instead of

hard drive).

4. Reseat suspected components and verify connection.

5. Test suspected components using HP PC Hardware Diagnostics (UEFI) tool.

Note An Error Message means the system has nished BIOS hardware validation and is ready to

launch the Startup Menu. To access the Startup Menu for further options, press the Esc key

while restarting the computer.

Common issues and possible solutions 109

Questions and Answers:

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HP EliteBook 850 G4 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Silver
Country of origin	China
Bus type	OPI
Stepping	H0
Tjunction	100 °C
Processor cache	3 MB
Processor cores	2
Processor model	i5-7200U
System bus rate	4 GT/s
Processor family	Intel® Core™ i5
Processor socket	BGA 1356
Processor threads	4
Processor codename	Kaby Lake
Configurable TDP-up	25 W
Processor frequency	2.5 GHz
Processor cache type	Smart Cache
Configurable TDP-down	7.5 W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.1 GHz
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x2+2x1, 1x4, 2x2, 4x1
Thermal Design Power (TDP)	15 W
Configurable TDP-up frequency	2.7 GHz
Configurable TDP-down frequency	0.8 GHz
Maximum number of PCI Express lanes	12
Numeric keypad	Yes
Pointing device	Touchpad
Memory slots	2x SO-DIMM
Internal memory	8 GB
Memory clock speed	2133 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	32 GB
Memory layout (slots x size)	1 x 8 GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
SSD interface	PCI Express
Storage media	SSD
Total storage capacity	256 GB
Compatible memory cards	SD, SDHC, SDXC
Number of SSDs installed	1
Display diagonal	15.6 \
Native aspect ratio	16:9
On-board graphics card ID	0x5916
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 620
On-board graphics card family	Intel® HD 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)	1000 MHz
Battery capacity	51 Wh
Battery life (max)	14.7 h
Number of battery cells	3
AC adapter power	45 W
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Charging port type	DC-in jack
USB 2.0 ports quantity	0
Sustainability certificates	ENERGY STAR
Processor code	SR2ZU
Processor ARK ID	95443
Processor package size	42 x 24 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
Intel segment tagging	Home Office, Small Business
HP segment	Business
HP Management tools	HP Driver Packs, HP SoftPaq Download Manager (SDM), HP System Software Manager (SSM), HP BIOS Config Utility (BCU), HP Client Catalog, HP Management Integration Kit, HP Device Access Manager, HP BIOSphere, HP Sure Start, HP Client Security
HP Software provided	HP ePrint Driver+JetAdvantage, HP Hotkey Support, HP Noise Cancellation, HP Workwise, HP Velocity
Harmonized System (HS) code	84713000