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If you do not see any thing within 30 seconds from the time you turn on the
power. The system may have failed on power-on test. Recheck your jumper
settings and connections or call your retailer for assistance.
Beep
One short beep when displaying logo
Long beeps in an endless loop
One long beep followed by three short
beeps
High frequency beeps when system is
working
6. During power-on, press <Delete> key to enter BIOS setup. Follow the instructions in
BIOS SETUP.
7. Power off your computer: You must first exit or shut down your operating system
before switch off the power switch. For ATX power supply, you can press ATX power
switching after exiting or shutting down your operating system. If you use Windows 9X,
click "Start" button, click "Shut down" and then click "Shut down the computer?"
The power supply should turn off after windows shut down.
Introducing BIOS
The BIOS is a program located on a Flash Memory on the motherboard. This program is a
bridge between motherboard and operating system. When you start the computer, the BIOS
program gain control. The BIOS first operates an auto-diagnostic test called POST (power on
self test) for all the necessary hardware, it detects the entire hardware device and configures
the parameters of the hardware synchronization. Only when these tasks are completed done it
gives up control of the computer to operating system (OS). Since the BIOS is the only
channel for hardware and software to communicate, it is the key factor for system stability,
and in ensuring that your system performance as its best.
In the BIOS Setup main menu of Figure 3-1, you can see several options. We will explain
these options step by step in the following pages of this chapter, but let us first see a short
description of the function keys you may use here:
Press <Esc> to quit the BIOS Setup.
Press (up, down, left, right) to choose, in the main menu, the option you want
to confirm or to modify.
Meaning
No error during POST
No DRAM install or detected
Video card not found or video card memory bad
CPU overheated
System running at a lower frequency
Chapter 3
22
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