HP Z8 G4 Maintenance And Service Guide

Changing a Setup or Power-on password
To change the power-on or setup password, complete the following steps:
1. Turn on or restart the computer.
To change the Setup password, go to step 2.
To change the Power-on password, go to step 3.
2. To change the Setup password, as soon as the computer turns on:
- Press the Esc key while “Press the ESC key for Startup Menu” message is displayed.
- Press the F10 key to enter Computer Setup.
3. When the key icon appears, type your current password, a slash (/) or alternate delimiter character, your
new password, another slash (/) or alternate delimiter character, and your new password again as shown:
current password/new password/new password
NOTE: Type the new password carefully since the characters do not appear on the screen.
4. Press Enter.
The new password will take eect the next time the computer is restarted.
Deleting a Setup or Power-on password
To delete the power-on or setup password, complete the following steps:
1. Turn on or restart the computer.
To delete the Setup password, go to step 2.
To delete the Power-on password, go to step 3.
2. To delete the Setup password, as soon as the computer turns on:
- Press the Esc key while “Press the ESC key for Startup Menu” message is displayed.
- Press the F10 key to enter Computer Setup.
3. When the key icon appears, type your current password, a slash (/) or alternate delimiter character, your
new password, another slash (/) or alternate delimiter character, and your new password again as shown:
current password/
4. Press Enter.
Changing a Setup or Power-on password 83

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