Asus AP1720-E2 AP1720-E2 English version manual - Page 93

ASUS AP1720-E2 barebone server, USB device wake-up 3-pin USBPW12, USBPW34, CPU external frequency

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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). USBPW12 3 2 2 1 +5V (Default) +5VSB NCCH-DL ® USBPW34 2 1 +5V (Default) NCCH-DL USB device wake up 3 2 +5VSB 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. 4. CPU external frequency selection (6-pin J1) This jumper allows you to select the CPU external frequency (or bus clock). To ensure system stability, it is recommened that you keep the default setting. 246 J1 246 246 NCCH-DL ® 13 5 Auto-detect CPU FSB (Default) 13 5 100 MHz 246 13 5 133 MHz 246 13 5 166 MHz NCCH-DL CPU external frequency selection 13 5 200 MHz ASUS AP1720-E2 barebone server 4-5

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4-5
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
246
246
246
135
135
135
135
135
246
246
To ensure system stability, it is recommened that you keep the default
setting.