HP Compaq Elite 8300 All-in-One User Manual

System does not power on and the LEDs on the front of the computer are not flashing.
Cause Solution
System unable to power on. Press and hold the power button for less than 4 seconds. If
the hard drive LED turns green, then:
1. Check that the voltage selector, located on the rear of
the power supply on some models, is set to the
appropriate voltage. Proper voltage setting depends on
your region.
2. Replace the system board.
OR
Press and hold the power button for less than 4 seconds. If
the hard drive LED does not turn on green then:
1. Check that the unit is plugged into a working AC outlet.
2. Open computer and check that the power button board
cable is properly connected to the system board.
3. Check that power supply cables are properly connected
to the system board.
4. Check to see if the 5V_aux light on the system board is
turned on. If it is turned on, then replace the power
button board.
5. If the 5V_aux light on the system board is off, then
replace the power supply.
6. Replace the system board.
Solving general problems 113

HP Compaq Elite 8300 All-in-One Specifications

General

RAM	Up to 16 GB DDR3
Network	Integrated Intel 82579LM Gigabit Ethernet
Chipset	Intel Q77 Express
Processor	Intel Core i5-3470S
Storage	128 GB SSD, 256 GB SSD
Display	23-inch Full HD (1920 x 1080)
Graphics	Intel HD Graphics 2500
Operating System	Windows 7 Professional
Optical Drive	DVD+/-RW SuperMulti
USB Ports	6 x USB 2.0
Wireless	802.11a/b/g/n
Audio	Integrated High Definition Audio, Internal Speaker
Ports	VGA, DisplayPort, RJ-45, audio in/out