brtaman
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- Jun 12, 2008
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I used to use this trick power my peltiers while I was still in my overclocking phase. I don't know how many of you are aware of this "mod/trick", but it can be quite helpful when testing a driver and/or laser prior to mounting it inside the host. I thought I would share for those that do not know the trick, hope it is helpful.
****Disclaimer...dealing with electricity can be hazardous, while there is not conceivable way to get hurt with this mod that I can think off, I will not be held responsible for any mishaps***
Equipment needed for the mod:
1x ATX power supply from a PC
Some wire
Optional Equipment:
1xSoldering Iron
1xSwitch
The ATX power supplies found inside PC's are of good use to us laser hobbyists due to the voltage outputs of their given lines. However, turning them on outside a PC requires a very small mod.
4-pin ATX connector:
12v-yellow wire
5v-red wire
GND-black wire
Additional ATX voltage options:
(found on main ATX connector)
3.3v orange wire
-5v white wire*
-12v blue wire*
*has low current handling capabilities, can't remember exact number but in 100ma ranges, also depends on power supply.
ATX Motherboard connector:
The mod is very straight forward and simple. If you look at the diagram above, you will notice a green and a grey cable, the green is PC ON and grey is PWR-OK, it is through this two wires that the motherboard instructs the PS to turn on when you push the power button.
This mod is nothing more than jumping these two wires, and presto you have a very good power supply capable of putting out quite a nice sum of amps through the 12 and 5v lines, the amount depends on the PS you have chosen for this mod, it is always written on a sticker on the side of the PS. I do not mind cable spaghetti and since my PS has a switch in the back I have no need to place a switch between the two wires, therefore it took me 2 minutes to do and if I wish I can just take the cable out and use the ps in a computer. However, one could get really creative and install the PS in a nice box, with a separate switch and make it look very spiffy by adding a gnd terminal and terminals for all the separate voltages, but this is up to you.
There you have it a 5 buck PSU that took 5 minutes to complete. Hope this will be off some use to you. On a side not I think that the trick is pretty straight forward, but if anyone needs a picture just ask.
Thanks
brtaman
****Disclaimer...dealing with electricity can be hazardous, while there is not conceivable way to get hurt with this mod that I can think off, I will not be held responsible for any mishaps***
Equipment needed for the mod:
1x ATX power supply from a PC
Some wire
Optional Equipment:
1xSoldering Iron
1xSwitch
The ATX power supplies found inside PC's are of good use to us laser hobbyists due to the voltage outputs of their given lines. However, turning them on outside a PC requires a very small mod.
4-pin ATX connector:
12v-yellow wire
5v-red wire
GND-black wire
Additional ATX voltage options:
(found on main ATX connector)
3.3v orange wire
-5v white wire*
-12v blue wire*
*has low current handling capabilities, can't remember exact number but in 100ma ranges, also depends on power supply.
ATX Motherboard connector:
The mod is very straight forward and simple. If you look at the diagram above, you will notice a green and a grey cable, the green is PC ON and grey is PWR-OK, it is through this two wires that the motherboard instructs the PS to turn on when you push the power button.
This mod is nothing more than jumping these two wires, and presto you have a very good power supply capable of putting out quite a nice sum of amps through the 12 and 5v lines, the amount depends on the PS you have chosen for this mod, it is always written on a sticker on the side of the PS. I do not mind cable spaghetti and since my PS has a switch in the back I have no need to place a switch between the two wires, therefore it took me 2 minutes to do and if I wish I can just take the cable out and use the ps in a computer. However, one could get really creative and install the PS in a nice box, with a separate switch and make it look very spiffy by adding a gnd terminal and terminals for all the separate voltages, but this is up to you.
There you have it a 5 buck PSU that took 5 minutes to complete. Hope this will be off some use to you. On a side not I think that the trick is pretty straight forward, but if anyone needs a picture just ask.
Thanks
brtaman
. Which most people have lying around anyway. On the good side you can get some old 250ish W PSU for dirt cheap anyway and it will probably put out 15-20 amp on the 5v line and 10's of amps on the 12v one.
iv used it to power a TEA laser and railgun and coilgun and a "pennyshrinker" that only managed to blow half my garage up because the shielding i was usin was NOT ballistics proof.....
, I imagine the wife was plenty pissed when she heard it go off? ;D Those caps do sound like they can whomp out some joules 
