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HP ProDesk 400 G2 User Manual

HP ProDesk 400 G2
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Solving power problems
Common causes and solutions for power problems are listed in the following table.
Power supply shuts down intermittently.
Cause Solution
If equipped with a voltage selector, voltage selector switch on
rear of computer chassis (some models) not switched to correct
line voltage (115V or 230V).
Select the proper AC voltage using the selector switch.
Power supply will not turn on because of internal power supply
fault.
Replace the power supply.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second
pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
1. Ensure that the computer air vents are not blocked and the
processor cooling fan is running.
2. Open the access panel, press the power button, and see if
the processor fan (or other system fan) spins. If the fan does
not spin, make sure the fan cable is plugged onto the
system board header.
3. If fan a plugged in and not spinning, replace it.
Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times.
(Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Power failure (power supply is overloaded). 1. If equipped with a voltage selector, 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. Open the access panel and ensure the power supply cable is
seated into the connector on the system board.
3. Check if a device is causing the problem by removing ALL
attached devices (such as hard drives or optical drives and
expansion cards). Power on the system. If the system enters
POST, then power off and replace one device at a time and
repeat this procedure 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.
4. Replace the power supply.
5. Replace the system board.
Solving power problems 89

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HP ProDesk 400 G2 Specifications

General IconGeneral
Tcase72 °C
Bus typeDMI2
SteppingC0
Processor cache2 MB
Processor cores2
Processor modelG1840
System bus rate5 GT/s
Processor familyIntel® Celeron® G
Processor seriesIntel Celeron Processor G1000 Series for Desktop
Processor socketLGA 1150 (Socket H3)
Processor codenameHaswell
Processor frequency2.8 GHz
Processor cache typeL2
Processor lithography22 nm
Processor manufacturerIntel
Processor front side bus- MHz
PCI Express slots version3.0
Processor operating modes32-bit, 64-bit
ECC supported by processorYes
PCI Express configurations1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)54, 53 W
Number of processors installed1
Maximum number of PCI Express lanes16
Memory types supported by processorDDR3-SDRAM
Memory clock speeds supported by processor1333 MHz
Memory bandwidth supported by processor (max)21.3 GB/s
Maximum internal memory supported by processor32 GB
Memory slots2x DIMM
Internal memory4 GB
Memory channelsDual-channel
Memory clock speed1600 MHz
Internal memory typeDDR3L-SDRAM
Memory layout (slots x size)1 x 4 GB
Storage mediaHDD
Optical drive typeDVD Super Multi
Card reader integratedNo
Total storage capacity500 GB
Discrete graphics card modelNot available
On-board graphics card modelIntel® HD Graphics
Maximum on-board graphics card memory1.024 GB
On-board graphics card OpenGL version4.3
On-board graphics card base frequency350 MHz
On-board graphics card DirectX version11.1
On-board graphics card dynamic frequency (max)1050 MHz
Number of displays supported (on-board graphics)3
Ethernet LAN data rates10, 100, 1000 Mbit/s
USB 2.0 ports quantity6
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
Power supply180 W
Product typePC
Market positioningBusiness
Chassis typeDesktop
Product colorBlack
Country of originChina
Placement supportedHorizontal
Sustainability certificatesENERGY STAR
Operating system installedWindows 7 Professional
Operating system architecture64-bit
Scalability1S
Processor codeSR1VK
Processor ARK ID80800
Processor package size37.5 x 37.5 mm
Supported instruction setsSSE4.1, SSE4.2
Thermal solution specificationPCG 2013C
Intel Secure Key Technology version1.00
Intel Stable Image Platform Program (SIPP) version0.00
Intel segment taggingEnterprise, Small Business
Weight and Dimensions IconWeight and Dimensions
Depth358.8 mm
Width165 mm
Height355 mm
Weight6500 g

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