Ide cables have how many pins

Always power down the hard drive and the hard drive controller before making any connection changes. When you test your hard drive, hard drive controller and IDE cable, it is recommended that you do the following:. Verify that the hard drive is spinning without the IDE cable attached. The power cable attached to the drive should make the drive spin. Make sure that the cable is inserted into the drive in the correct orientation. On drives without a key or pin 19 missing, line up the red stripe on the cable with pin 1 on the hard drive.

If the hard drive is not being detected in the BIOS, make sure that the jumpers are set correctly on the hard drive. If the hard drive is not being detected in your operating system, make sure that the drive is formatted with a partition for example, NTFS or FAT If you are using a computer running a version of Windows, a drive letter must also be assigned to the hard disk drive. Everything is hooked up but nothing is working. Write your answer Related questions. How many pins dose an IDE connector have?

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As you can see, the one on the left, the newer wire cable has very small wires running from connector to connector, conversely, the wire cable has larger wires. There is a reason for this. The newer standard requires the addition and separation of the wires for better signals to achieve the faster speeds.

For the longest time, hard drives have always had a setting for a Master or Primary setting and Slave. The Master was always the boot drive, the drive that contained the operating system.

The other drive or Slave drive was for data storage. In rare cases, using this configuration you could boot from a Slave device but I'm not gonna get into that here and now. The way technicians have always done it in the past with the wire cable was Master in the Middle connection and Slave on the end. It really didn't matter much until the hard drive makers started making drives with the Cable Select option.

Okay, lets set the record straight. The wire cables are not called pins! Burn this in to your brain kids. The older wire and the newer 80 wire are both pins! Well, actually, their 39 pins.

One pin was removed that was never used so people installing hard drives wouldn't connect them backwards. If you scroll up and look at the motherboard connector at the beginning of this article, you'll see the 19th pin removed so that these cables can't be connected the wrong way. See the picture below It's that way for a reason.

This is true even if you don't have a hard drive in the Master position. The Master for wire cables goes on the the Middle connector. Only older computers the AT type have a problem here, and again, you should read the manual that came with the motherboard or contact the maker of the system. You could try it as a Master and it may work but that's not the way it should be.

If you want to use the cable select with the older drive on a wire cable, you'll have to consult the maker of the drive for the instructions. My sources tell me that there was a loose standard to put the Master drive on the end of the wire cable and the Slave in the middle but that was a very loose standard. Dats Dat. But, you'll suffer a dramatic speed hit. Because of the slower drives controller, the PC will accommodate both drives by slowing down the pair to the older drives speed.