[daveyp187]

You bridge pc psu or put a switch to bridge.
normally the ps3 psu is in standby, when u turn the ps3 on it will tell the ps3 psu to power up..

but if you doing this mod it don't work like that..
you bridge the pc psu which sends power to the ps3(the ps3 has red light) then u turn on the ps3..

so you don't need the 3.3v as there is no ps3 psu
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I would use a switch to bridge psu as the ps3 fan will run when the ps3 is in standby

[Señor_Striatum]

@daveyp187 or anyone for that matter... I am interested in clearing up some space in my PS3 for an ongoing project I have been working on so I am considering having an external pc psu to power the ps3. My only concern is with the two copper components that secure the motherboard and the psu. Do these carry current from the psu to the motherboard or are they meant only to help secure the psu? If so how did you get around using these with a faulty psu? Thanks

[KillerBug]

Those do 95% of the work...the front wires are mostly for standby functions...the pins from your image handle all the high current stuff. If you have a high wattage soldering iron you can just solder wires to the bottom of them (or pull them out and replace them with 16AWG or thicker wire). Otherwise, just wrap 16AWG wire tightly around each, carefully pull the wound wires off the pins, dose them in solder. and force them back onto the pins.

[Señor_Striatum]

Originally Posted by KillerBug Those do 95% of the work...the front wires are mostly for standby functions...the pins from your image handle all the high current stuff. If you have a high wattage soldering iron you can just solder wires to the bottom of them (or pull them out and replace them with 16AWG or thicker wire). Otherwise, just wrap 16AWG wire tightly around each, carefully pull the wound wires off the pins, dose them in solder. and force them back onto the pins.

So after soldering the 16AWG wire to the pins what kind of current would I need to run through them? I assume it will be different per model and I am sure I can find out how many watts, amps, ect. the CECHA01 motherboard uses. I understand that I would need a power supply that can at least handle the total current the mobo requires but I am not entirely sure what wires I would need to solder from the PSU to the 16AWG. Do you have any idea?

[KillerBug]

The PSU in the 60GB models is rated at 380W, almost all of that is for those two pins...although it never actually uses that much. If you find a PC PSU with at least 30A on a single 12V rail, that should be enough. I would solder 2 or 3 of the 12V lines from a single rail to one wire, two or three of the grounds to the other wire. I am sure you know the trick for turning on an ATX PSU with a resistor...you can use a relay triggered by the 3.3V line from the mainboard to do this. You would then want to wire the 5V standby wire that is on the ATX power connector to the 5V line(s) going to the mainboard.

[carldenning]

you could use a xbox psu on the ps3

[Señor_Striatum]

Originally Posted by KillerBug The PSU in the 60GB models is rated at 380W, almost all of that is for those two pins...although it never actually uses that much. If you find a PC PSU with at least 30A on a single 12V rail, that should be enough. I would solder 2 or 3 of the 12V lines from a single rail to one wire, two or three of the grounds to the other wire. I am sure you know the trick for turning on an ATX PSU with a resistor...you can use a relay triggered by the 3.3V line from the mainboard to do this. You would then want to wire the 5V standby wire that is on the ATX power connector to the 5V line(s) going to the mainboard.

Dude are you an electrical engineer or are you self taught? Thank you. In regards to the trick are you talking about connecting the green switch wire with a ground so you can turn on the PSU via switch or without a mobo signal right? If so, you are suggesting to connect the 3.3v line from mobo to the psu wire which will allow the PSU to turn on once the PS3 is turned on right? I understand the rest clearly and thank you.
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Originally Posted by carldenning you could use a xbox psu on the ps3

Yeah but I am trying to clear room for the insides of the ps3... although I just realized that I can do what killerbug was explaining with the PS3 PSU and make it an external. In that case I assume you would just stick the 16 AWG wires, from the MOBO, in the two holes in the PSU where the pins used to go (and extending the signaling wires of course)?

[KillerBug]

Originally Posted by Señor_Striatum Dude are you an electrical engineer or are you self taught? Thank you. In regards to the trick are you talking about connecting the green switch wire with a ground so you can turn on the PSU via switch or without a mobo signal right? If so, you are suggesting to connect the 3.3v line from mobo to the psu wire which will allow the PSU to turn on once the PS3 is turned on right? I understand the rest clearly and thank you.

I was actually recommending using a relay, controlled by the 3.3V line...so you would have the two lines from the ATX PSU that turn the PSU on when they touch...one would be connected to a low resistance resistor which would be connected to the output of a relay. The other would be connected to the input of the relay. The relay trigger would be the 3.3V from the PSU mainboard.

Oh, and I am self taught.

Originally Posted by Señor_Striatum Yeah but I am trying to clear room for the insides of the ps3... although I just realized that I can do what killerbug was explaining with the PS3 PSU and make it an external. In that case I assume you would just stick the 16 AWG wires, from the MOBO, in the two holes in the PSU where the pins used to go (and extending the signaling wires of course)?

Yes, you can just put the PS3 PSU outside the case and extend the wires. Use 16AWG or larger for the fat 12V/GND pins and I would step up the thickness of the other 4 wires a little bit as well since longer wires need to be thicker to carry the same current. Keep an eye on temperatures inside the PSU...the way the PS3 routes airflow through the PSU vents on the way to the fan...without this, the PSU might need a small fan installed to prevent overheating.

[Señor_Striatum]

Originally Posted by KillerBug I was actually recommending using a relay, controlled by the 3.3V line... Use 16AWG or larger for the fat 12V/GND pins and I would step up the thickness of the other 4 wires a little bit as well since longer wires need to be thicker to carry the same current. Keep an eye on temperatures inside the PSU...the way the PS3 routes airflow through the PSU vents on the way to the fan...without this, the PSU might need a small fan installed to prevent overheating.

Didn't think about the airflow, so yeah if I decide to go that route a fan will more than likely be bought...Thank you for clarifying the relay setup. One last

To increase the thickness of the 4 wires would you recommend running the two 16awgs straight from the mobo all the way to or even inside the PSU then wrap and solder the 4 psu wires around the 16awgs?

[KillerBug]

No...just use 18AWG to extend the 4 wire plug going to the mainboard.