![]() ![]() The 5V won't bleed through and cause the motor to turn at a slower speed, it's a completely separate circuit (complete enough at least). In 3.5" (and larger) harddrives, the motor runs from the 12V supply. To those suggesting the power supply, this information is not right. ![]() If the heads did move over the data portion of the platters, there will be an increased risk of a head crash, because lower rpm should = less head-platter air gap.Since head flying height appears to depend on platter speed, it's very likely the heads will not move over the data portion of the platters if the speed is not exactly what it's supposed to be.The 12 V DC spindle motor could spin when provided 5 V DC, but at approximately half the speed as normal. ![]() Again, I don't know what I'm talking about but it seems probable that: try the slave and master settings first, if you have no luck, message me again.I researched this a little more because it was interesting. you can also set both drives to "cable select" but you then have to use the correct connector on the data cable for each drive. You need to put the little black jumper onto the pins marked "slave" on the dvd drive and "slave present" or "Master" on the hard drive if they are both on the same data cable. There are usually four sets of two pins laid out vertically. Now either marked on the case or even on the drive label are the meaning of these pins. On the rear panel of the drives (where the cables plug in) is a jumper pin. If this is a SATA drive, you do not need to do this and you may have a faulty drive. If you have and you are connecting this drive on the same data cable as your hard drive, you need to set the hard drive to "slave present" or "Master" and the dvd drive to "slave" If this is a IDE drive.You may have the data cable connected the wrong way around.ĭo you only have one hard drive installed.? ![]()
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