HP Z400 User Manual

Table 6-8 Diagnostic lights and audible codes (continued)
Activity Possible cause Recommended action
Red Power LED blinks nine
times, once every second,
followed by a two-second
pause. Nine beeps.
System powers on but does
not start.
1. The system board might have a problem. Contact HP for assistance.
2. The CPU might have a problem. Contact HP for assistance.
System does not power-on
and LEDs are not blinking.
No beeps.
System unable to power on. CAUTION: Internal components might be powered even when the
workstation is off. To prevent damage, disconnect the workstation power
cord before you remove a component.
To resolve the problem, choose one of the following options:
Press and hold the power button for less than 4 seconds. If the hard disk
drive LED turns green, then:
1. Remove the expansion cards one at a time and try holding the
power button again for less than 4 seconds.
2. The problem might be on the system board. Contact HP for
assistance.
Press and hold the power button for less than 4 seconds. If the hard disk
drive LED does not turn on green then:
1. Check that unit is plugged into a working AC outlet.
2. Open the access panel and check that the power button harness is
properly connected to the system board.
3. Check that all power supply cables are properly connected to the
system board.
4. (For computers with a BIST LED on the rear panel) Check the power
supply functionality:
a. Disconnect the AC power.
b. Disconnect ALL internal power supply cables.
c. Plug in the AC power.
d. Power on the computer.
●
If the power supply fan spins and the BIST LED lights, the
power supply is functional. The problem might be on the
system board. Contact HP for assistance.
●
If the power supply fan does not spin or the BIST LED
does not light, the problem might be in the power supply.
See
Testing power supply on page 176 for more
information.
LED color definitions
The following table describes what each LED light on the workstation front panel signifies.
Table 6-9 LED color definitions
LED state LED color System status
Solid Blue System is on.
ENWW
Diagnostic codes and errors
199

HP Z400 Specifications

General

Bus type	QPI
Processor cache	4 MB
Processor cores	2
Processor model	W3503
System bus rate	4.8 GT/s
Processor socket	-
Processor frequency	2.4 GHz
Processor cache type	Smart Cache
Processor lithography	45 nm
Processor manufacturer	Intel
PCI Express slots version	2.0
Processor operating modes	64-bit
ECC supported by processor	Yes
Thermal Design Power (TDP)	130 W
Number of processors installed	1
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	800, 1066 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s
Maximum internal memory supported by processor	24 GB
Audio system	Realtek ALC262
Product type	Workstation
Motherboard chipset	Intel® X58 Express
Memory slots	6x DIMM
Internal memory	4 GB
Memory channels	Triple-channel
Memory clock speed	1066 MHz
Memory layout (slots x size)	- GB
Graphics card	Quadro 600
Networking features	Gigabit Ethernet (10/100/1000)
Graphics card family	NVIDIA
HDD speed	- RPM
RAID levels	0, 1, 5, 10
HDD capacity	500 GB
HDD interface	SATA II
Storage media	HDD
Display included	No
USB 2.0 ports quantity	8
Parallel ports quantity	0
Chassis type	Minitower
Country of origin	China
Number of 5.25\" bays	3
Operating system installed	Windows 7 Professional
Operating system architecture	32-bit
Power supply	475 W
Processor ARK ID	40800
Processor package size	42.5 x 45 mm
Supported instruction sets	SSE4.2

Weight and Dimensions

Depth	455.3 mm
Width	167.9 mm
Height	450.2 mm
Weight	13500 g