Asus T2-PH1 User Guide - Page 62
CPU stopped, DRAM refreshed, system running in low power mode
UPC - 610839552757
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2 . USB device wake-up (3-pin USBPW12, USBPW34) The USBPW12 and USBPW34 jumpers are for the rear USB ports. 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). USB device wake up ® USBPW12 2 1 +5V 3 2 +5VSB (Default) USBPW34 2 1 +5V (Default) 3 2 +5VSB • The USB device wake-up feature requires a power supply that can provide 500 mA on the +5VSB lead for each USB port; otherwise, the system would not power up. • The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode. 4-4 Chapter 4: Motherboard info