User's Manual

E520
9
BIOS key
Before booting up the system, insert a straightened paper
clip into this hole to enter BIOS.
Headphone jack
This port allows you to connect amplied speakers or
headphones.
Microphone jack
The microphone jack is designed to connect to a
microphone used for video conferencing, voice narrations,
or simple audio recordings.
USB 3.1 Gen 1 port
The USB 3.1 Gen 1 (Universal Serial Bus) port provides a
transfer rate up to 5 Gbit/s and is backward compatible to
USB 2.0.
Power button
The power button allows you to turn the PC on or o. You
can also press the power button once to put your PC to
sleep mode.
Air vents
The air vents allow air to enter and leave your PC chassis.
IMPORTANT! For optimum air ow, ensure that the
air vents are free from obstructions.
Main box
Front panel