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OK, time for a serious question. This concerns the sequencing of the 5V and 12V power (for devices that use both) at power on and power off. > Question 1: An ATA hard drive is powered on both +5V and +12V. > Are there any rules or specifications regarding which of these > two power inputs should come up first upon power-up? If so, are > there any timing specifications related to this sequence? > Question 2: What about timing at power off? > Question 3: Any problem if only one of the two are on > (is 5V w/o 12V OK, is 12V w/o 5V OK)? Hale *** Hale Landis *** www.ata-atapi.com ***
