HP 280 G1 User Manual

Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and
may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the
unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was
removed, then returned to their proper locations.
CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard drives
only.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the work
area to prevent damage.
Cables and connectors
Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to
avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from
the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the
cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts
being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the
reassembly process. Improper cable placement can damage the computer.
Hard Drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies
to failed drives as well as replacement spares.
●
If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging
and label the package “Fragile: Handle With Care.”
●
Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective
packaging until they are actually mounted in the computer.
●
Avoid dropping drives from any height onto any surface.
●
If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive while
the computer is on or in standby mode.
●
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.
●
Do not use excessive force when inserting a drive.
●
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
Lithium coin cell battery
The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime
of about three years.
See the appropriate removal and replacement chapter for the chassis you are working on in this guide for
instructions on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the battery
is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire,
or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.
18 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

HP 280 G1 Specifications

General

Tcase	72 °C
Bus type	DMI
Stepping	C0
FSB Parity	No
Processor cache	3 MB
Processor cores	2
Processor model	G3250
System bus rate	5 GT/s
Processor family	Intel Pentium G
Processor series	Intel Pentium G3000 series for Desktop
Processor socket	LGA 1150 (Socket H3)
Processor codename	Haswell
Number of QPI links	0
Processor frequency	3.2 GHz
Processor cache type	Smart Cache
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	3.0
Processor operating modes	64-bit
ECC supported by processor	Yes
PCI Express configurations	1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)	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
Operating system installed	Windows 7 Professional
Chassis type	Micro Tower
Product color	Black
Country of origin	China
Memory slots	2x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Maximum internal memory	16 GB
Memory layout (slots x size)	1 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	-
Total storage capacity	500 GB
Product type	PC
Motherboard chipset	Intel® H81
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics
Maximum on-board graphics card memory	1.7 GB
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	11.1
On-board graphics card dynamic frequency (max)	1100 MHz
Number of displays supported (on-board graphics)	3
Power supply	180 W
Ethernet LAN data rates	10, 1000, 100 Mbit/s
USB 2.0 ports quantity	6
Scalability	1S
Processor code	SR1K7
Processor ARK ID	83538
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

Weight and Dimensions

Depth	355 mm
Width	165 mm
Height	358.8 mm
Weight	7050 g