It's not the PS2 that can't supply sufficient current to the USB ports, but the USB 1.1/2.0 standard, which limits the maximum current per port to 500mA.
the only reason that i say the usb hdd, that is powered from usb ports, could be the problem is that the ps2 has limited power available and most of the time the power that the usb drives(those that use usb for the power) can draw more power then is available
Like the above. It's not the processor, but the USB hardware.
so the processor does not have enuf power to processor
But if this was his problem, then his HDD will probably not work on this computer either.
taking the power drain away usually fixes the problems when using a usb powered usb hdd
@OP: Try to power your USB device anyway, but I don't think that it'll solve your problem.
Yes, but it could be a false alarm.
Over the course of a couple weeks I've been trying to play games off it. I've gotten some games to work, but most of them freeze on a yellow screen meaning defragmentation or something right?
You'll also get a yellow screen if OPL somehow fails to access your USB device properly.
Most of my USB HDD cases have Y-cables too, but I don't need to plug in the 2nd plug for the cases to work properly with my PS2s.
It uses a y cable, so it uses 2 usb ports to power it.
But it doesn't rule out the possibility that OPL's USB drivers are not working well with your case (Even if they work with it most of the time).
Its not anything incompatible like that though, as i have gotten games to work, just very inconsistently
SCPH-10000 S. MINOKAMO v1.01 (Defunct)
SCPH-10000 S. KISARAZU v1.00 (faulty)
SCPH-15000 S. KOHDA (With warranty seal!) :D
DESR-5100 S. EMCS