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Gigabyte On/off charge technology?

Gigabyte On/off charge technology?
« on: September 01, 2010, 07:25:11 am »
I've read some of the reviews about the recent Gigabyye boards with On/Off charge technology that provide more amps for high drain USB devices.
http://www.gigabyte.com.tw/microsite/185/on-off-charge.htm

What I don't get is why you'd need to market this as a new feature. Surely the amount of amps available to USB devices is dependant on the PSU?
All ATX PSUs easily provide more than enough amps on the main +5V output and at least 2A on the 5VSB output.

I always thought on all ATX boards that the 5V pin on the USB connectors is simply connected to the +5volt and +5VSB ATX connector pins via traces on the PCB. Why should you need a driver unless there's some sort of (uneccessary?) current limiting circuitry that limits each USB port to 500mA?
My PC:
GA-MA770-UD3 rev 2.0
AMD Phenom 2 X2 550 Black Edition Core Unlocked and OC'd to 3.7Ghz
Scythe Mugen 2 Heatsink
Sapphire AMD/ATI Radeon HD4850
Samsung SyncMaster 245B LCD monitor
Corsair VX 550W PSU
Windows XP SP3

Dark Mantis

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Re: Gigabyte On/off charge technology?
« Reply #1 on: September 01, 2010, 09:42:57 am »
If I ma understanding your question correctly then it is because of the ability to charge when the computer is in OFF mode not whilst it is running normally. Also I think you are probably right about the limiting of current noramlly because of the heat build up in the circuits. This motherboard has twice the current carrying capacity  of normal.
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

Re: Gigabyte On/off charge technology?
« Reply #2 on: January 05, 2011, 01:59:22 am »
Does anyone know if On/Off Charge can support devices apart from Apple iphones etc?
None of my stuff (which detects high power usb sources everywhere else) goes into fast charge when I connect it to the Charge usb port on this motherboard.