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The worst that can happen when taking power from the PS2 is some of the onboard fuses blowing. LEDs take so little current you can add as many as you'd ever want to. The PS2 takes about 4 amperes from the power supply when used - that makes 48 watts (more with a hard drive, or when spinning a CD fast, and less with no disc and sitting doing nothing). About half of this is then converted to 3.3v and even lower voltages on the mainboard (or extra DC-DC board in v3 consoles). So, that makes it 24w at 3.3v, which means the current will be 7,2A or more!
Do you think the 20 _milli_amperes (equals 0,02A) of a LED makes any difference here?
Same goes for the mod chips, they draw a few hundred milliamperes. It's no big deal.
hmm I'm thinking of doing this exact same mod (well pretty much) but using two four inch cold cathodes needing twelve volts, should I use that 12 volt schematic? I don't want to make a single mistake as soldering points to the ps2 motherboard is not something I really want to mess around with
you'll need a 100 ohm resistor (depending on led) for each led if you're going to draw the power from the USB ports. First i think you should do some research on series and parallel circuits before continuing.
Originally Posted by Scan-C