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Topic: how to put a on off power switch to Biostar A870 motherboard? (Read 1755 times)

legendary
Activity: 1134
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i just never turn it off  Grin
legendary
Activity: 889
Merit: 1000
Bitcoin calls me an Orphan
Funny.. i just turn it on with my key..  Tongue
hero member
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Merit: 1009
firstbits:1MinerQ
u guys also running 5 gpu?
The load on PSU has no bearing on the power switch. It simply grounds a signal line to tell the circuit to ground the PSU power-on pin (green line on ATX connector), which also has no load on it. This signals the PSU to switch on with it's own internal load bearing circuit.

So any NO (normally open) momentary switch will work (like the ones at Radio Shack or any other such place). Solder two wires to the switch and add a two-pin connector on the end. I just made a couple here a week ago for some boards I have open air. Touching a small screwdriver across the pins also works. Usually those pins are color-coded red on mainboards.
full member
Activity: 160
Merit: 100
u guys also running 5 gpu?
legendary
Activity: 1073
Merit: 1000
how to put a on off power switch to Biostar A870 motherboard? , there is no on off switch on the board

These are cheap and convenient. I am using this exact power switch on one of my mining rigs right now.

http://www.newegg.com/Product/Product.aspx?Item=N82E16812201029



-ST
hero member
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Salvage one from an old computer case or use a metallic object to 'short' the correct power pins on the motherboard.
full member
Activity: 160
Merit: 100
how to put a on off power switch to Biostar A870 motherboard? , there is no on off switch on the board
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