K7S5A - Keyboard on Question - using USB!

[gtd2000]

I unplugged my p/s 2 keyboard and have installed my Logitec USB keyboard.

This has resulted in the "Keyboard On" funtion no longer working.

Is this because the USB port is only "powered" when the PC is powered up?

 

[Peter]

Yes, keyboard power on can only work on the legacy keyboard port. This is because keeping the USB port alive enough to manage a keystroke is substantially more difficult than on ye olde keyboard controller.

regards, Peter

 

[gtd2000]

Thanks

 

[tritium4ever]

Keyboard power on is the only reason why my keyboard is still plugged into the PS/2 port. I'm sacrificing two USB ports on the keyboard just for this, but I really like turning on the computer with a simple press of a key, much like on a Mac!

 

[htyei]

Is there anything else that needs to be done for keyboard power on ? I ahe the jumper set correctly and the bios set to any key.
I am plugged into the ps2 pport with my ms natutural keyboard pro.

Its not turning on by keyboard.

 

[Peter]

Your PSU must have enough +5VStandby juice to keep your keyboard powered. 2 Amperes or so.

Mind you, the computer consumes 10 to 15 watts while waiting for the keypress all day. Add what all the peripherals consume on standby (monitor up to 30 watts, printer, whatever else), and you'll see that this is a pretty expensive commodity.

regards, Peter

 

[gtd2000]

I guess I better move that "redundant" jumper back asap and use the surplus electricity for running the air-con instead

 

[Peter]

Well unless you use a power strip with a mechanical, primary side cutoff switch, your ATX computer will always be on Standby, not Off. Same for the monitor and other peripherals.

I have all the standby-ish stuff in my household on such a power strip, living room equipment and computer - and it is noticeable on the electricity bill.

Estimates go that on average, one third of the power consumption in private households is wasted for stuff on standby.

regards, Peter

 

[gtd2000]

I'm pretty sure my power strip has an on off switch - no point in giving the electricity company any more money than they really need.

I'll just need to dig it out from behind my desk amongst all the fluff and dust