HP Z8 G4 User Manual

7 Maintenance, diagnostics, and minor
troubleshooting
Turning o the computer
To properly turn o the computer, shut down the operating system software.
CAUTION: HP does not recommend holding down the power button to shut o the system. Doing so can
cause loss of user data and may damage the storage device. If the system becomes unstable and no other
alternative is available, please give the system suicient time to wake up completely after you reboot the
computer. This may take up to several minutes, especially on larger-capacity or solid-state devices. For more
information, see Risks of unexpected power loss on solid state drives at http://www8.hp.com/h20195/v2/
GetPDF.aspx/4AA6-1470ENW.pdf. HP computer white papers may also be accessed through HP Performance
Advisor.
Windows 10
▲
Click the Start icon, click the Power icon, and then select Shut down.
– or –
From the taskbar, type settings, select Settings, type shut, and then click Turn o your PC.
Windows 7
▲
Click Start, and then click Shut down.
If you encounter issues
To diagnose and resolve issues, HP recommends a sequential troubleshooting approach:
●
Visual inspection
●
Blink or beep codes
●
Basic troubleshooting, including HP PC Hardware Diagnostics
●
HP support
●
System restore and recovery
For more information, see Creating recovery media and backups on page 21.
These troubleshooting strategies are explained in the following sections.
For more information
You can nd more troubleshooting information in the comprehensive Maintenance and Service Guide (English
only) available under the reference library at http://www.hp.com/support. Select your country and language,
select Product Support & Troubleshooting, enter the model number of the computer, and click Search.
Turning o the computer 31

HP Z8 G4 Specifications

General

Display included	No
Keyboard included	Yes
Power supply	1125 W
Operating system architecture	64-bit
Audio chip	Realtek ALC221
Product type	Workstation
Market positioning	Business
Motherboard chipset	Intel C622
Chassis type	Tower
Product color	Black
Country of origin	China
Number of 3.5\" bays	4
Number of 5.25\" bays	2
PCI Express x8 slots	3
Headphone outputs	1
HDMI ports quantity	0
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	8
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	-
Total storage capacity	1000 GB
Memory slots	24x DIMM
Internal memory	8 GB
Memory channels	Hepta-channel
Memory clock speed	2666 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	- GB
Memory layout (slots x size)	1 x 8 GB
Tcase	77 °C
Stepping	U0
Processor cache	11 MB
Processor model	4108
System bus rate	- GT/s
Processor socket	LGA 3647 (Socket P)
Processor threads	16
Processor codename	Skylake
Processor frequency	1.8 GHz
Processor cache type	L3
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3 GHz
Thermal Design Power (TDP)	85 W
Maximum number of PCI Express lanes	48
Memory clock speeds supported by processor	2400 MHz
Maximum internal memory supported by processor	768 GB
Scalability	2S
Processor code	SR3GJ
Processor ARK ID	123544
Intel TSX-NI version	1.00
Processor package size	76.0 x 56.5 mm
Supported instruction sets	AVX, AVX 2.0, AVX-512, SSE4.2

Weight and Dimensions

Depth	551.2 mm
Width	215.9 mm
Height	444.5 mm
Weight	22400 g