ASROCK 770DE3L Quick Installation Manual page 18

EUP LAN / EUP Audio Jumper
(EUP_LAN1, 3-pin jumper, see p.2 No. 35)
(EUP_AUDIO1, 3-pin jumper, see p.2 No. 31)
Note: EUP_LAN and EUP_AUDIO jumper design decreases the power consumption
of this motherboard to meet EuP standard. With an ASRock EuP ready
motherboard and a power supply that the 5VSB power efficiency is higher
than 50% under 100mA current consumption, your system is able to submit
EuP standard. The default setting (short pin1 and pin2) is EuP enabled. If you
want to disable this power saving function, you may short pin2 and pin3.
Please be noticed that when EUP_LAN jumper is set to enabled, the
Wake-On-LAN function under S3 (Suspend to RAM), S4 (Suspend to Disk),
and S5 (Soft Off) will be disabled.
1 8 1 8 1 8
1 8 1 8
ASRock 770DE3L Motherboard
Default (Enable EuP)
(Disable EuP)