Discussion in 'Article Discussion' started by Sifter3000, 28 Apr 2010.
It's nice to see USB catching up somewhat with Firewire in the available power department
Still not sure about having USB as some kind of universal charging connector, though.
how does the shut-off power thing work? would PSU be still turned on?
Dumb dumb dumb. They're messing with the specs and it's only going to end in tears. You know Chinese knockoff manufacturers won't implement things properly and stuff's going to get burnt out.
The USB 3 spec should have just been designed with 2.5A as the maximum power it can supply. Then all these high draw appliances should either charge through a USB 3 port or flash a message saying it can't charge (i.e. for backwards compatability with USB 2) and have to be plugged in with a nice standardised barrel jack. We'd all upgrade to USB 3 sooner than the 2 bloody years it's going to take for rollout and everyone would be happy.
Stupid manufacturers each with proprietary versions of "standard" connectors.. ****ing arseholes... I need to go for a walk.
Why do you keep
scratching things out
writing awesome articles?
Errm... "With recent its motherboards" should read "With its recent motherboards"...
With the boost in power that USB3 gives us, can we expect to see any 3.5" external drives that don't require a power brick any time soon? The current 2.5" USB powered ones are okay, but they just don't have the capacity I need.
You don't have to be sure - the industry has already decided for you.
I meant more from a practical standpoint. Look at the iPad requiring a non-standard 'USB' port for charging as an example. Devices like that depend on non-standard implementations of USB host ports. Combined with announcements like the one referred to in this topic, it makes me fear that USB may soon stop to be the 'universal serial bus' it once was.
Of course, the iPad and such suck for not being able to trickle-charge from standard USB ports.
Best article ever!
I wonder if the power of greyskull on these USB ports is more likely to burn an improperly removed pendrive.
As far as I'm concerned, more power to the people is never good.
All the time the PC is plugged in to the mains and has power going to it the PSU it technically always on. When you press the power button on your case this creates a connection on your motherboard that tells it to power up.
but im asking since if you have 2 USB3 devices connected each drawing 2.7A of power, that's way over the 5Vstb current spec on most power supplies. that means the PSU will has to be fully operational for 5v rail to be able to deliver power.
i agree with most comments here, out of spec hardware should not exist. especially considering USB 2.0 shouldn't provide 500mA on plugging in, the hardware has to ask for it, otherwise it's only 150mA.
that's just the standby voltage though.. would mean you can't use wake on usb devices
edit- well actually you could.. the devices won't be pulling much of anything at idle
Is the USB next door to the the USA?
Years ago I started a computer project which saw a mini-ITX board, screen, keyboard and trackpad mouse squeezed into an aluminium flight case. I designed the USB ports so that power was supplied directly from a separate PSU, therefore allowing several amps of current to power things like custom computer interfaces etc. I could also programatically switch off power to certain ports, as well as keep the power live when the rest of the computer was shut down.
This idea from Gigabyte is pretty much the same (more power, and power present when machine switched off) so it's not really a new idea at all. I'm sure there's been countless people before me that've wired a higher current power source directly to their USB ports for charging and powering things.
^+1 rep for pro modding
More pics that can enlarge pleasethankyou!!
Gigabyte are definitely my mobo manufacturer of choice atm.
I lol'd - I shouldn't have, but I did!
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