Acer 5830TG USB 3.0 speed is real low, less than 10M/S


last time we have some minor issue of battery gauge, and could be ignored anyway (http://wp.me/ph3BR-Zt), screen replacement done due to in warranty, because it was flickering and shadow lines in grey color were spread gradually from corner to center of screen.

Things happen when you are going to uses USB 3.0 for massive backup purpose that but experience is so lousy, some days ago the user has notice this symptom but exact time of began, no one knows. 3 different USB3.0 hard drives had been tested and other PC used also for validation, include WD/ Transcend, Acer AIO desktop, confirmed that the only problem with this Acer 5830TG USB 3.0 port.

It seems the PC (Acer 5830TG) only ran the USB3.0 port in USB2.0 compatible mode, but why ?
BIOS is latest version, USB controller driver is provided by Intel/Renesas, win7 has update automatically without user intervention or even user has no capability to do something.

what had happen ? hardware problem ? driver problem ? BIOS problem ?

BIOS is latest version, USB controller driver is provided by Intel/Renesas, win7 has update automatically without user intervention or even user has no capability to do something.

what had happen ? hardware problem ? driver problem ? BIOS problem ?

we have written enquiry to Acer via their web page of customer feedback, and hoping that can get help as long as this model & the PC already expired without service warranty, but who knows if no hardware fault, what else can do ?

Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
Acer 5830TG USB 3.0 speed is real low, less than 10M/S
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