Electronics > Beginners

How to Wire/make a time delay power on switch

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marmono:
What I need to accomplish: I am building an arcade using a windows pc and I want to hide all traces of windows and the fact that its a pc. Hiding windows isnt an issue using windows 10 enterprise so I have that covered, but there is no way to get rid of the branded dell logo plastered bios screen. I am going to wire a momentary switch that powers on the lcd,pc,lights etc. all on one switch. What I would like to happen is that I hit the switch,  the pc immediately powers up and then there is a 10 second delay before the lcd powers on. This would accomplish what im trying to do as the bios screen would have already passed before I get picture to the lcd.

Im sure there is SOMETHING or some way to accomplish this, but I dont know the terminology of the part Im looking for. Can someone steer me in the right direction?

dcbrown73:
I haven't worked on Dell PCs in years, but I know some BIOS allow you to do a fast boot that pretty much bypasses the splash screen and boots immediately.

Does the BIOS not give you this option?

ledtester:
If you can wait awhile, just buy a "timer relay" on ebay/aliexpress/amazon.

Or google "555 timer relay circuit".

marmono:
good call, but no, I do have fast boot turned on and while this does make it load faster the dell bios screen still displayed. As far as my research can tell there is no way to eliminate the post screen loading brand and load animation

marmono:

--- Quote from: ledtester on August 20, 2019, 06:05:33 pm ---If you can wait awhile, just buy a "timer relay" on ebay/aliexpress/amazon.

Or google "555 timer relay circuit".



--- End quote ---

Yes that seems like exactly what im looking for

The only thing im wondering about is, the device seems like it sends voltage, I want to power on an lcd so I dont want to send any voltage input I just want it to close the circuit between the two pins on the lcd that power it on.

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