MSI B75MA-G43 - Manual (Page 39)

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MS-7798
Chapter 1
Jumper
JUSB_PW1~2: USB power Jumper
These jumpers are used to select USB ports powered by VCC5 or 5VSB. Set to 5VSB
f you want them provde power n standby mode.
Close 1-2
Keep USB power to
VCC5 (default)
(for back panel USB connectors)
1
Close 2-3
Keep USB power to
5VSB
1
JUSB_PW1
Close 1-2
Keep USB power to
VCC5 (default)
(for on-board USB connectors)
1
Close 2-3
Keep USB power to
5VSB
1
JUSB_PW2
Important
If you set the jumper to 5VSB, the power supply must be able to provde at least 2A
currents.