HP ProDesk 400 G2 User Manual

Activity Beeps Possible cause Recommended action
until failure occurs. Replace the device that is
causing the failure. Continue adding devices
one at a time to ensure all devices are
functioning properly.
3. Replace the power supply.
4. Replace the system board.
Red Power LED flashes five
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
5 Pre-video memory error.
CAUTION: To avoid damage to the DIMMs or the
system board, you must unplug the computer power
cord before attempting to reseat, install, or remove
a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the
faulty module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Red Power LED flashes six times,
once every second, followed by
a two second pause. Beeps stop
after fifth iteration but LEDs
continue until problem is solved.
6 Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace the
system board.
Red Power LED flashes seven
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
7 System board failure (ROM
detected failure prior to
video).
Replace the system board.
Red Power LED flashes eight
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
8 Invalid ROM based on bad
checksum.
1. Reflash the system ROM with the latest BIOS
image.
2. Replace the system board.
Red Power LED flashes nine
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
9 System powers on but is
unable to boot.
1. Check that the voltage selector, located on the
rear of the power supply (some models), is set
to the appropriate voltage. Proper voltage
setting depends on your region.
2. Unplug the AC power cord from the computer,
wait 30 seconds, then plug the power cord
back in to the computer.
3. Replace the system board.
4. Replace the processor.
Red Power LED flashes ten
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
10 Bad option card. 1. Check each option card by removing the card
(one at a time if multiple cards), then power on
the system to see if fault goes away.
2. Once a bad card is identified, remove and
replace the bad option card.
124 Chapter 8 POST error messages

HP ProDesk 400 G2 Specifications

General

Tcase	72 °C
Bus type	DMI2
Stepping	C0
Processor cache	2 MB
Processor cores	2
Processor model	G1840
System bus rate	5 GT/s
Processor family	Intel® Celeron® G
Processor series	Intel Celeron Processor G1000 Series for Desktop
Processor socket	LGA 1150 (Socket H3)
Processor codename	Haswell
Processor frequency	2.8 GHz
Processor cache type	L2
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	3.0
Processor operating modes	32-bit, 64-bit
ECC supported by processor	Yes
PCI Express configurations	1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)	54, 53 W
Number of processors installed	1
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	1333 MHz
Memory bandwidth supported by processor (max)	21.3 GB/s
Maximum internal memory supported by processor	32 GB
Memory slots	2x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Internal memory type	DDR3L-SDRAM
Memory layout (slots x size)	1 x 4 GB
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	No
Total storage capacity	500 GB
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics
Maximum on-board graphics card memory	1.024 GB
On-board graphics card OpenGL version	4.3
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	11.1
On-board graphics card dynamic frequency (max)	1050 MHz
Number of displays supported (on-board graphics)	3
Ethernet LAN data rates	10, 100, 1000 Mbit/s
USB 2.0 ports quantity	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
Power supply	180 W
Product type	PC
Market positioning	Business
Chassis type	Desktop
Product color	Black
Country of origin	China
Placement supported	Horizontal
Sustainability certificates	ENERGY STAR
Operating system installed	Windows 7 Professional
Operating system architecture	64-bit
Scalability	1S
Processor code	SR1VK
Processor ARK ID	80800
Processor package size	37.5 x 37.5 mm
Supported instruction sets	SSE4.1, SSE4.2
Thermal solution specification	PCG 2013C
Intel Secure Key Technology version	1.00
Intel Stable Image Platform Program (SIPP) version	0.00
Intel segment tagging	Enterprise, Small Business

Weight and Dimensions

Depth	358.8 mm
Width	165 mm
Height	355 mm
Weight	6500 g