mclaren85 Posted February 8, 2017 Share Posted February 8, 2017 Hello, since my laptop's ssd is far lower then I need (120 GB), I keep my external disk permanently plugged in. I know 150 mA is enough to power up this external disk but will this permanent current consumption harm my motherboard? (south bridge chip) Link to comment Share on other sites More sharing options...
WALLONN7 Posted February 8, 2017 Share Posted February 8, 2017 Nope... Relax!!! Link to comment Share on other sites More sharing options...
Israeli_Eagle Posted February 9, 2017 Share Posted February 9, 2017 150 mA via USB is for the chipset already hard stress if always used too long, so for sure better with an extra power supply. But uses the 150 mA only when the disk is running, so not parked. Link to comment Share on other sites More sharing options...
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