Asus AP1720-E1 - Manual (Page 29)

ASUS PC-DL Deluxe motherboard 2-3
2.3 Before you proceed
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any
component.
2. Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.
3. Hold components by the edges to avoid touching the ICs on them.
4. Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
5. Before you install or remove any component, ensure that the
ATX power supply is switched off or the power cord is
detached from the power supply. Failure to do so may cause
severe damage to the motherboard, peripherals, and/or
components.
When lit, the green LED (SB_PWR1) indicates that the system is ON,
in sleep mode, or in soft-off mode, a reminder that you should shut
down the system and unplug the power cable before removing or
plugging in any motherboard component.
This warning LED (LED1) lights up if you installed two CPUs of
different type/voltage. You must install identical CPUs on this
motherboard.
The red LED (AGP_WARN1) is a smart protection from motherboard
burn out caused by an incorrect AGP card. If you plug in any 3.3V AGP
card into the 1.5V AGP slot, this LED lights up thus preventing the
system to power up. This LED remains off if you plug in a 1.5V AGP
card.
PC-DL Onboard LED
PC-DL
SB_PWR1
ON
Standby
Power
OFF
Powered
Off
AGP_WARN1
ON
Incorrect
AGP Card
OFF
Correct
AGP Card
LED1
ON
CPU Type/Voltage
not identical
OFF
CPU Type/Voltage
identical