Schematic xbox powered by pc sata

[mespo365]

Here is a schematic I created that allows you to create a simple solution to powering your xbox 360 dvd drive via sata power in your pc. Its a good cheap 2-3 bucks alternative to some of the ones out there.

[l_oliveira]

Sadly most sata power pins do not have the orange (3.3v) wire connected ....

[mespo365]

Sadly most sata power pins do not have the orange (3.3v) wire connected ....

Actually all "real" sata power pins do!! If you have a molex to sata it may not, but normal sata power on you psu always does. This can be easily converted to using a molex as well. You just need to add a 3.3 voltage regulator and have a 5 volt line go into in...1 maybe 2 capacitors and your set.

[Pacote-san]

Posted that months ago on another board, might aswell post here too :p

[fasix]

why only 5v have switch? 12v don't need to be cut off in order to power off the drive?

[l_oliveira]

why only 5v have switch? 12v don't need to be cut off in order to power off the drive?

Because when you cut the 5v, you disable the power to the MCU inside the drive, making it stop all processing internally. The servo circuitry only reacts on commands given by the MCU so they won't do anything with the MCU (drive Micro Controller Unit, the actual drive CPU) powered off.

[fasix]

why only 5v have switch? 12v don't need to be cut off in order to power off the drive?

Because when you cut the 5v, you disable the power to the MCU inside the drive, making it stop all processing internally. The servo circuitry only reacts on commands given by the MCU so they won't do anything with the MCU (drive Micro Controller Unit, the actual drive CPU) powered off.

Ok, got it, thanks for the exaustive reply.

[Tiros]

Because when you cut the 5v, you disable the power to the MCU inside the drive, making it stop all processing internally. The servo circuitry only reacts on commands given by the MCU so they won't do anything with the MCU (drive Micro Controller Unit, the actual drive CPU) powered off.

So the mcu has no power, and its connected to a device that is powered?
That doesn't sound like such a good idea, why not just use a dpst?

[l_oliveira]

So the mcu has no power, and its connected to a device that is powered?
That doesn't sound like such a good idea, why not just use a dpst?

I can only agree with that. The idea of breaking only the 5v isn't mine by the way ...

[pcc10]

What parts would one need to accomplish this?  Where's the best place to get them and would Soldering experience be required?

What is a Spdt switch?

Being a noob when it come to electronics, would this project be considered easy, medium or hard to do?

Thanks for your help.