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ASUS AP1720-E2 barebone server
1. The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port. Otherwise,
the system would not power up.
2. The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.
3. USB device wake-up (3-pin USBPW12, USBPW34)
Set these jumpers to +5V to wake up the computer from S1 sleep
mode (CPU stopped, DRAM refreshed, system running in low power
mode) using the connected USB devices. Set to +5VSB to wake up
from S3 and S4 sleep modes (no power to CPU, DRAM in slow
refresh, power supply in reduced power mode).
4. CPU external frequency selection (6-pin J1)
This jumper allows you to select the CPU external frequency (or bus clock).
NCCH-DL
®
NCCH-DL USB device wake up
1
2
(Default)
+5V +5VSB
2
3
USBPW12
1
2
USBPW34
(Default)
+5V +5VSB
2
3
NCCH-DL
®
NCCH-DL CPU external frequency selection
J1
Auto-detect
CPU FSB
100 MHz
(Default)
133 MHz
166 MHz
200 MHz
24
6
24
6
24
6
1
3
5
1
3
5
1
3
5
1
3
5
1
3
5
24
6
24
6
To ensure system stability, it is recommened that you keep the default
setting.