HP Z1 Maintenance And Service Guide

Diagnostic codes and errors
This section presents information about diagnostic LED codes, LED color definitions, and POST error
messages to help you troubleshoot problems.
Diagnostic LED and audible (beep) codes
This section describes the front panel LED error and operation codes as well as the audible codes that
might occur before or during the POST.
Table 4-7 Diagnostic lights and audible codes
Activity Possible cause Recommended action
Blue Power LED on. No
beeps.
Computer on.
N/A
Blue Power LED blinks
every two seconds. No
beeps.
Computer in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED is off. No
beeps.
Computer in Hibernate
mode (S4-Suspend to
disk) or system is off
(S5).
Blue Power LED blinks
three times*, once per
second. No beeps.
Computer in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED blinks four
times*, once per second.
No beeps.
Computer in Hibernate
mode (S4-Suspend to
disk).
*User-selectable. See
Computer Setup (F10) Utility
menu on page 15 for details.
For the following LED activity and beeps, the beeps are heard through the chassis speaker. Blinks and beeps repeat for five
cycles, after which, only the blinks continue to repeat.
Red Power LED blinks two
times, once every second,
followed by a two-second
pause. Two beeps.
CPU thermal protection
activated by either of the
following methods:
●
A fan might be
blocked or not
turning.
●
The heatsink and
fan assembly is not
properly attached
to the CPU.
CAUTION: Internal components might be powered even when
the computer is off. To prevent damage, disconnect the computer
power cord before you remove a component.
1. Ensure that the computer air vents are not blocked and the
cooling fan is running.
2. Open the access panel, press power button, and verify that
the CPU fan is spinning. If the CPU fan is not spinning, make
sure the fan cable is plugged into the computer board
header. Ensure the fan is fully and properly seated or
installed.
3. If fan is plugged in and seated properly, but is not spinning,
the problem might be in the CPU fan. Contact HP for
assistance.
4. Verify that the fan assembly is properly attached. If problems
persist, there might be a problem with the CPU heatsink.
Contact HP for assistance.
Diagnostic codes and errors
83

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