03-06-2014 07:09 AM - edited 03-06-2014 07:10 AM
i m using lenovo z500 since last 4 months n there hav been no issues i resently upgraded to windows 8.1 and i found that my laptop givs miserable transfer rates while connected to USB 3.0 It hardly givs me a speed of 2-6mbps with usb 3.The drivers support on the site says that its an inbox driver which is preinstalled while installing windows but i wonder its not effective .
Please help me get that effectiveness of usb 3.0 n tell me what to do to get it bk upto high speeds.
04-23-2014 01:58 PM
I had the same problem on a Thinkpad T430, the usb 3.0 speed max was around 36 mb/second. The steps below fixed it, the link is the source. My USB 3.0 ports then went up to 140 mb/second !
The "USB selective suspends settings" option in the Power Options may be Enabled.
Click Start, type Power Optionsin the Search box and then click Power Options from the returned list
Click Change plan settings for the selected Power plan
Click Change advanced power settings
Expand USB settings and then USB selective suspend setting and change the setting to Disabled for the option for On battery: or Plugged in:
Click OK on the Power Settings window and click Save changes on the Edit Plan Settings window
Important: This is a default power setting , disabeling this setting will cause additional battery power consumption when your mobile PC is in Sleep or Hibernation mode and unplugged.