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RE: Power turn on sequence

Theo,

hope you don't mind if I answer this: It doesn't matter at all which one (P4 or P24) you turn on first - the power-up process is initiated with the push of the power button on the case, so once you do this both P4 and P24 need to be powered on.

Or in other words: Turning on power for P4 or P24 DOES NOT power up the PC - this is done by pushing the button, that causes the PC to power up.

Clarification note: It is exactly that power up process that requires proper sequencing and ramp rates. I have not been able to achieve that "manually" (i.e. switching various lines in a specific sequence etc.), that needs to be done by a module that has the logic to get the timing and ramping quite exact. For this reason I power up with P24 powered either by Antec or by picoPSU, and when the system is completely up I switch over to the "clean" supplies. (P4 does not need any sequencing or ramping etc., you just power up the PSU of your choice and you're good.)

Hope that helps
Robert


Edits: 05/27/09
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