Usb has exceeded power limits Tags: Hard Drives Connection USB Power Storage Last response: February 15, 2010 2:47 AM in Storage Share Anonymous a b G Storage February 13, 2010 3:28:40 AM when i connect my 250 external it shows a usb has execeed power limits More about : usb exceeded power limits p1n3apqlexpr3ss February 13, 2010 5:09:42 AM 250 what? What you using? external hdd? I had a similar problem for a bit few months ago when i made my own usb case fun mod thing... it disappeared quickly enough sminlal a c 414 G Storage February 13, 2010 7:03:38 AM If it's a full-sized external drive, that's normal. It's generally only the 2.5" external drives that have low enough power needs that they can be powered by a USB port. USB 3.0 may change this since it permits attached devices to draw somewhat more power than USB 2.0. Related resources The usb composite device has exceeded the power limits of its hub port - Forum MP3 usb device has exceeded the power limits of this hub port - Forum Your USB device has exceeded the power limits ... - Forum Usb hub has exceeded its power limit - Forum Mouse - usb power limit exceeded - Forum Can't find your answer ? Ask ! Get the answer 505090 a b G Storage February 13, 2010 2:45:28 PM try a powered usb hub, they are a few bucks at any local shop RetiredChief a c 350 G Storage February 15, 2010 2:47:40 AM Sminlal is correct, and 505090 provided the corrective action for a 2 1/2 in HDD. For a 3 1/2 in drive a 12 Volt brick is required Vs the 5 Volt usb hub brick. 3 1/2 in regular HDDs require +12 V, not provided by a usb port. Usb Ports are low current (power) and even some of the 2 1/2 in HDDs exceed the power limitations for a usb port and require a "Brick" Can't find your answer ? Ask ! Publish Related resources : ForumA usb hub has exceeded its power limit ForumUsb device has exceeded the power limit ForumUSB device has exceeded the power limit ForumMy computer says the USB device has exceeded its power ForumUsb exceeded power outage ForumUsb hub has exceeded its power limit ForumUSB device has exceeded the power limit ForumUSB device has exceeded the power limit ForumUSB power exceeded ... ForumIs it possible to install windows on a external hdd?????? ForumUSB external port does no recognize USB external hard disks Forum[Solved] What is the most dependable, and most reliable USB brand? ForumSATA power problem ForumUSB Hard disk - two USB power required? ForumMedia files for HP V155w 4GB USB Flash Pen Drive Memory Disk Stick More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !