Originally Posted by cory1492
Hrm, so when I plug the PS3 into the wall using the teensy++ install method with a VREG, without ever connecting the teensy to a PC it shouldn't boot?
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No, that's not how it's supposed to work.
Originally Posted by cory1492
Anything with VREG and USB power, without connecting to a PC first when I hit power on the console it would turn on, spin up the HDD then hard power off. Nothing I saw suggested this behavior was expected, and unless you say different I put it down to the micropendous or even just the 1287 parasiting the IO leads when unpowered.
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Well, the thing is that code gets executed anyway, even without Teensy being connected to USB. It seems to be powered through I/O lines. In fact if I put anything else than the NORway firmware on Teensy (e.g. blinky example from PJRC), my PS3 won't boot either. But since code obviously gets executed, NORway is setting all I/O lines to input, so that it doesn't interfere. Once USB is connected, tristate gets set.
Originally Posted by cory1492
Well I was looking at crackmyday's mod
http://www.ps3hax.net/showthread.php...070#post284070
and the discussion that followed said powering teensy from the NOR VCC caused issues, like the VREG by NOR getting hot for example suggesting it's not the best place to draw 3.3V from, among other things like requiring multiple attempts to poweron the PS3 before gaining access (I assume at this point it's simply because the NOR doesn't get power until late and the teensy takes a few microseconds to boot and set pin states up.)
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CrackMyDays's method might not even be required anymore, because those problems might have been caused by a bug that was reversing tristate levels. In other words, tristate never was set correctly. Unfortunately I cannot verify this, because it never occurred on my system.
Btw, here're some pictures of my new installation. I've installed an external port so that I can easily switch between different hardware platforms and power supply..