HP Z4 G4 User Manual

6 Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard
drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer
to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specic error messages that may appear on the screen during Power-On Self-Test
(POST) at startup, refer to POST error messages and diagnostic front panel LEDs and audible codes
on page 65.
Safety and comfort
WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may
result in discomfort or serious injury. Refer to the Safety & Comfort Guide at http://www.hp.com/ergo for
more information on choosing a workspace and creating a safe and comfortable work environment. For more
information, refer to the Safety & Regulatory Information guide.
Before you call for technical support
If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact
problem before calling for technical support.
●
Run the HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup. Refer to Computer Setup (F10) Utility on page 27 for
more information.
●
Check the Power LED on the front of the computer to see if it is ashing red and white in a specic
pattern. The ashing lights are error codes that will help you diagnose the problem. Refer to POST error
messages and diagnostic front panel LEDs and audible codes on page 65 for more information.
●
If the screen is blank, plug the monitor into a dierent video port on the computer if one is available. Or,
replace the monitor with a monitor that you know is functioning properly.
●
If you are working on a network, plug another computer with a dierent cable into the network
connection. There may be a problem with the network plug or cable.
●
If you recently added new hardware, remove the hardware and see if the computer functions properly.
●
If you recently installed new software, uninstall the software and see if the computer functions properly.
●
Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting
the operating system, use “Last Known Conguration.”
●
Refer to the comprehensive online technical support at http://www.hp.com/support.
●
Refer to Helpful hints on page 39 in this guide.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-
solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat
feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online support
information, software and drivers, proactive notication, and worldwide community of peers and HP experts.
38 Chapter 6 Troubleshooting without diagnostics

HP Z4 G4 Specifications

General

Tcase	65 °C
Bus type	QPI
Stepping	U0
Processor cache	8.25 MB
Processor cores	6
Processor model	W-2133
System bus rate	0 GT/s
Processor socket	LGA 2066 (Socket R4)
Processor threads	12
Processor codename	Skylake
Processor frequency	3.6 GHz
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.9 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
PCI Express configurations	1x16, 1x4, 1x8
Thermal Design Power (TDP)	140 W
Number of processors installed	1
Maximum number of PCI Express lanes	48
Memory types supported by processor	DDR4-SDRAM
Memory clock speeds supported by processor	1600, 1866, 2133, 2400, 2666 MHz
Memory bandwidth supported by processor (max)	85.3 GB/s
Maximum internal memory supported by processor	512 GB
Operating system installed	Windows 10 Pro for Workstations
Memory slots	8x DIMM
Internal memory	16 GB
Memory channels	Quad-channel
Memory clock speed	2666 MHz
Maximum internal memory	256 GB
Memory layout (slots x size)	2 x 8 GB
HDD speed	7200 RPM
RAID levels	0, 1, 5, 10
HDD capacity	1000 GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
HDD interface	SATA
SSD interface	PCI Express
Storage media	HDD+SSD
Optical drive type	DVD-RW
Card reader integrated	No
Total storage capacity	1256 GB
Discrete graphics card model	Not available
Power supply	1000 W
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 1 (3.1 Gen 1) Type-A ports quantity	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	2
Sustainability certificates	ENERGY STAR
Chassis type	Tower
Product color	Black
Country of origin	China
Intel® vPro™ Platform Eligibility	-
Audio chip	Realtek HD ALC221
Product type	Workstation
Motherboard chipset	Intel® C422
Scalability	1S
Processor code	SR3LL
Processor ARK ID	125040
Processor package size	45 x 52.5 mm
Supported instruction sets	AVX, AVX 2.0, AVX-512, SSE4.2
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	445 mm
Width	169 mm
Height	386 mm
Weight	10200 g