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EazTerence

Power On w/ Keyboards..?

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Guys..

 

I understand that DFI LP UT nF4 Ultra-D has this function..

 

Power On w/ Keyboard (Any Key/Password/Hot Key)

 

Seriously.. I cant seem to use this function at all.. Do I need to have any special thing to activate it? I actually only tried setting it to enble in BIOS, afterwhich I off my system.. Pressing any key hoping that it'll on.. Sounds stupid I noe.. But I'd like to use this function.. =)

 

Any helpers out there..?

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You need to set the PS/2 Power Select Jumper to "On" pins 2-3. The Ps/2 keyboard will then have power supplied to it even when the pc is switched off. ie. it will be using the +5VSB rail instead of the default +5V rail.

Check the documention to find it's location - also make note of the fact you need greater than or equal to 720mA on the +5VSB. You should be fine with your psu but check it for the sake of it.

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I fyou are using a USB keyboard, I never got it to work. I set the jumper fiddled with the BIOS settings, begged for help here and never got it. Seems it is impossible with a USB keyboard. Curiously, if I plug the USB keyboard into a PS/2 slot with a converter, it works fine.

 

Not that I have used it but I believe it is Power-On from Standby Mode.

 

This functionality allows one to wake the computer from an off state or standby mode.

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The USB Power Select is split over two jumpers. One jumper for usb ports 1 - 6 and another jumper for ports 7 - 10. You'll want at least 2A on the +5VSB rail of your psu to be on the safe side when setting these jumpers.

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I found that even with the jumpers set properly, it would not work with USB keyboards. I am still waiting for someone to (hopefully) prove me wrong.

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If you have j17 on the 5 volt rail, you are likely best to leave this one alone. Take my psu, its rated at only 2amps on the 5vsb line. SOME issues - that got lumped into the "cold boot" bucket loom here (your psu may aleady be on the edge of a 5vsb overamp on initial power-on).

 

There is nothing in this warning that will harm equipment - it will just cause your psu to shut back down about as instantly as it come up.

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EazTerence:

5V and 5VSB are two different things.

Not sure about the power on by password - haven't tried that myself. I just use the crtl-f1 hotkey.

 

blink182prj:

Haven't got a usb keyboard - bummer about it not working for you tho. Have you tried just plugging in the adapter only in the keyboard's ps/2 port - just so something is plugged in there? It shouldn't work of course because none of the pins in the adapter would actually be connected to anything - but you never know :)

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Power on by by PS/2 works partialy for me.

 

It works ok when I try it after normal shutdown.

 

But, if I unplug and then plug in my PC it does not work (yet another "cold boot" problem :shake: )!! Why do they (DFI) insist on treating cold/"worm" boot differently when it is obvious it is a source of so many troubles!!! :confused:

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