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AHHH, RRRR! Whats the freak'en deal with my PC power source for my LEDs and Amp?
rackoon:
I have a nice chrome start button on the front of my coin door and it would be great if I could use it to turn on my LEDs and Sound system Amp.
HOLY CRAP! My roof is caving in "right now" from the weight of the snow and the huge tree that smashed through and is now half way sitting on it from the last storm. I cant take this any more! I wonder if I take my old futon and turn it up on end, I might be able to wedge it under the bottom story ceiling in the kitchen and keep it from coming down any further. I gave up on the top story until it stops snowing, HELL, it freaking snows in my old bedroom now since a tree ripped half the roof off. Every other day I go up to the second story and shovel snow from my bedroom. Whats the point of living in California if I live in the part where the weather sucks! I should take a pic of this mess.
Oh well my computer still works. Oh, and the cable and my 36" HD TV. But I am all out of propane and its 39 degrees in here and all my fire wood is soaked.
Anyway this ATX power supply is for my LEDs and Amp only so there isn't a mother board involved. Do I need a relay switch. The button on my coin door looks like a leaf switch. What happens if I hold it down too long? Will I fry something?
Fozzy The Bear:
--- Quote from: rackoon on March 20, 2006, 07:46:01 pm ---I have a nice chrome start button on the front of my coin door and it would be great if I could use it to turn on my LEDs and Sound system Amp.
--- End quote ---
I'm afraid that RayB has confused the issue somewhat for you..... This is not the motherboard switch!! This PSU is not connected to a motherboard, which normally has a relay to hold pin 14 tied to ground after you've pressed the front panel switch.
You need to permanently connect pin 14 and Ground or the power supply will not start up. The switch to turn it on is then the mains switch on the back.
OR
If you want control from the front of your cabinet then you need to leave the mains switch on the back turned on and connect an On / Off Switch (NOT Momentary Switch) between Pin 14 and Ground.
Best Regards,
Julian (Fozzy The Bear)
wrench:
straight from maximum pc mag,If you want it on all the time while plugged in just splice the two wires together,if you want to switch it off and on ,hook them to a switch.It works,I did this to a power supply for all my cab lights instead of tapping of the computer's power supply
rackoon:
This all sounds good. I'm glad I didn't just start hooking things up and fry something.
I have one last question since we are on the topic of PSUs.
I was planning on using 4 to 6 wirering terminals with jumpers to light up all 100 LEDs.
My PSU has two 5v lines for drives and four 5v lines running to the mother board connector.
I wont touch the 5vsb because someone already told me it was a bad idea.
Anyone see a problem with using the four 5v lines that go to the mother board for lighting LEDs? Probably 20 LEDs on each line.
quarterback:
--- Quote from: Fozzy The Bear on March 18, 2006, 10:57:31 pm ---You can damage the power supply on an ATX unit, if there's no load on the 5V Rail.
The PSU uses that to set up its voltage regulators, they can swing wildly if there isn't a correct load on that rail.
--- End quote ---
I'd like some more info on this. I'm currently running my carPC's 7" LCD monitor off of a mini-ATX power supply mounted in my dash. My LCD screen is running off one of the 12v molex connectors coming out of the power supply. NOTHING is running off of the 5v at all.
What you're saying concerns me. I did a fair amount of testing before putting all this stuff into my dash and the 12volts coming out of the mini-ATX seemed very stable. Can you gimme more info and/or tell me what kind of load needs to be put on the 5v?
Thanks