HP Z1 Maintenance And Service Guide

Clearing and resetting the CMOS
This section describes the steps necessary to successfully clear and reset the CMOS. The CMOS of the
computer stores password information and information about the computer configuration.
Using the CMOS button to reset CMOS
To clear CMOS using the Clear CMOS button, use the following procedure:
WARNING! To reduce the risk of personal injury from electrical shock and hot surfaces, disconnect
the power cord from the wall outlet and allow the internal system components to cool before touching.
CAUTION: When the computer is plugged in, the power supply has voltage applied to the system
board, even when the computer is turned off. Failure to disconnect the power cord can result in
damage to the system.
Static electricity can damage the electronic components of the computer or optional equipment. Before
beginning these procedures, be sure that you are discharged of static electricity by briefly touching a
grounded metal object.
1. Back up your computer CMOS settings with Computer Setup (F10) Utility, and select File > Save
to Disk.
CAUTION: Pressing the Clear CMOS button resets CMOS values to factory defaults and erases
customized information, including asset numbers and special settings.
2. Shut down the operating system, turn off the computer and external devices, and disconnect any
external devices.
3. Disconnect the AC power cord from the computer and wait 30 seconds for the power to dissipate.
NOTE: The Clear CMOS button does not clear CMOS if the AC power cord is connected to the
computer.
4. Open the workstation.
5. Locate and press the CMOS button.
For assistance locating the CMOS button and other system board components, see the system
board layout in
System board components on page 6.
6. Close the workstation, reconnect external devices, connect the power cord to the workstation, and
then turn on the workstation.
7. The system boots to an F1 prompt and displays a message that the date/time has changed and
that system options have changed.
8. Press F1. The system shuts down for three seconds and then restarts.
9. Use Computer Setup (F10) Utility to reset the date and time.
Clearing and resetting the CMOS
95

HP Z1 Specifications

General

Tcase	72.6 °C
Bus type	DMI
Stepping	D2
FSB Parity	No
Processor cache	8 MB
Processor cores	4
Processor model	E3-1245
System bus rate	5 GT/s
Processor series	Intel Xeon E3-1200
Processor socket	LGA 1155 (Socket H2)
Processor threads	8
Processor codename	Sandy Bridge
Processor frequency	3.3 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.7 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
Thermal Design Power (TDP)	95 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	33
Maximum number of PCI Express lanes	20
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	1066, 1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s
Maximum internal memory supported by processor	32 GB
Audio system	HD
Product type	Workstation
Motherboard chipset	Intel® C206
Memory slots	4x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Memory layout (slots x size)	- GB
Resolution	2560 x 1440 pixels
Graphics card	Quadro 500M
Networking features	Gigabit Ethernet (10/100/1000)
Wireless technology	802.11 a/g/n
Graphics card family	NVIDIA
Maximum storage capacity	2 TB
HDD speed	7200 RPM
RAID levels	0, 1
HDD capacity	1000 GB
HDD interface	SATA
Optical drive type	DVD Super Multi
Maximum graphics card memory	1.024 GB
On-board graphics card model	Intel® HD Graphics P3000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	850 MHz
On-board graphics card dynamic frequency (max)	1350 MHz
Number of displays supported (on-board graphics)	2
Display diagonal	27 \
Display number of colors	1.073 billion colors
Modem (RJ-11) ports	0
USB 2.0 ports quantity	7
Bundled software	Roxio Easy Media Creator; Intervideo WinDVD
Operating system installed	Windows 7 Professional
Power supply	400 W
Power supply input voltage	100 - 240 V
Power supply input frequency	50 - 60 Hz
Certification	Energy Star
Product color	Black
Country of origin	China
Processor code	SR00L
Processor ARK ID	52274
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	419.1 mm
Width	660.4 mm
Height	584.2 mm
Weight	213.2 g