HP 280 G4 User Manual

Solving hard drive problems ................................................................................................................................ 51
Solving media card reader problems ................................................................................................................... 53
Solving display problems .................................................................................................................................... 54
Solving audio problems ....................................................................................................................................... 58
Solving printer problems ..................................................................................................................................... 60
Solving keyboard and mouse problems .............................................................................................................. 61
Solving hardware installation problems ............................................................................................................. 62
Solving network problems .................................................................................................................................. 64
Solving memory problems .................................................................................................................................. 66
Solving CD-ROM and DVD problems .................................................................................................................... 67
Solving USB ash drive problems ........................................................................................................................ 69
Solving front panel component problems .......................................................................................................... 70
Solving Internet access problems ....................................................................................................................... 71
Solving software problems .................................................................................................................................. 71
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 73
POST numeric codes and text messages ............................................................................................................. 73
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 78
8 Password security and resetting CMOS .......................................................................................................... 81
Resetting CMOS and/or the password jumper .................................................................................................... 82
Changing a Setup or Power-On password ........................................................................................................... 83
Deleting a Setup or Power-On password ............................................................................................................ 84
9 Using HP PC Hardware Diagnostics ................................................................................................................ 85
Using HP PC Hardware Diagnostics Windows (select products only) ................................................................. 85
Downloading HP PC Hardware Diagnostics Windows ....................................................................... 85
Downloading the latest HP PC Hardware Diagnostics Windows version ....................... 86
Downloading HP Hardware Diagnostics Windows by product name or number
(select products only) ..................................................................................................... 86
Installing HP PC Hardware Diagnostics Windows ............................................................................. 86
Using HP PC Hardware Diagnostics UEFI ............................................................................................................. 86
Starting HP PC Hardware Diagnostics UEFI ....................................................................................... 87
Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive .............................................. 87
Downloading the latest HP PC Hardware Diagnostics UEFI version .............................. 87
Downloading HP PC Hardware Diagnostics UEFI by product name or number
(select products only) ..................................................................................................... 88
Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ............................................. 88
Downloading Remote HP PC Hardware Diagnostics UEFI ................................................................. 88
Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ................. 88
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HP 280 G4 Specifications

General

Graphics	Intel UHD Graphics 630
Optical Drive	DVD-Writer
RAM	DDR4-2666
Storage	1TB 7200 rpm SATA
Operating System	FreeDOS
Audio	Realtek ALC3601
Expansion Slots	1 PCIe x16; 1 PCIe x1; 1 M.2
Front Ports	2 USB 3.1 Gen 1; 1 headphone/microphone combo
Rear Ports	1 HDMI; 1 RJ-45; 1 VGA; 2 USB 2.0; 2 USB 3.1 Gen 1
Ports	1 VGA; 1 HDMI
Power Supply	310 W internal power supply, up to 90% efficiency, active PFC