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The Jumper Settings
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∙ 13y ago
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How do you determine wich drive is the master drive in a parallel IDE system?
There is a jumper on the drive, depending on the manufacturer, it should be labeled. Some manufacturers if the master is selected, and no slave is connected, the drive will not boot, with some other manufacturers it will. Also, sometimes the ribbon cable is labeled Drive 0 (master) and Drive 1 (Slave), other times it is not labeled. Frequently if the ribbon cable is labeled, even if the jumpers are set correctly on the drives, but they aren't plugged in to the correct connector on the ribbon cable, they won't work.
What is the difference between master IDE and slave IDE?
Each IDE slot can handle two drives. One drive will be the master and the other will be the slave depending o the configuration. If the jumpers of one drive is configured to set the drive as MA (Master), the second must be configured to SL (Slave). Both drives may be configured as CS (Cable Select), if so, The positioning on the ribbon cable will determine whic one is the master and which is the slave
What is the role of jumper in installation of hard disk?
Jumpers are used with the IDE (aka P-ATA) drives (hard disks or other drives like DVD recorder) . There can be two drives on the same cable with this norm, a master and a slave. The controller of the disk need to know if it is supposed to be the master or the slave. Jumpers are set to this purpose. There is a special mode called "cable select" where the position on the cable determines the mode (disk at the end of the cable is master, disk in the middle of the cable is slave)
Can a CD Rom and Hard Drive be on same ribbon cable?
Yes. Just check the jumpers to make sure ones set to master and ones set to slave.
What does the slave and master and the rest of the things for a hard drive mean?
To allow for two drives on the same cable, IDE uses a special configuration called master and slave. This configuration allows one drive's controller to tell the other drive when it can transfer data to or from the computer. What happens is the slave drive makes a request to the master drive, which checks to see if it is currently communicating with the computer. If the master drive is idle, it tells the slave drive to go ahead. If the master drive is communicating with the computer, it tells the slave drive to wait and then informs it when it can go ahead. The computer determines if there is a second (slave) drive attached through the use of Pin 39 on the connector. Pin 39 carries a special signal, called Drive Active/Slave Present (DASP), that checks to see if a slave drive is present. Although it will work in either position, it is recommended that the master drive is attached to the connector at the very end of the IDE ribbon cable. Then, a jumper on the back of the drive next to the IDE connector must be set in the correct position to identify the drive as the master drive. The slave drive must have either the master jumper removed or a special slave jumper set, depending on the drive. Also, the slave drive is attached to the connector near the middle of the IDE ribbon cable. Each drive's controller board looks at the jumper setting to determine whether it is a slave or a master. This tells them how to perform. Every drive is capable of being either slave or master when you receive it from the manufacturer. If only one drive is installed, it should always be the master drive. Many drives feature an option called Cable Select (CS). With the correct type of IDE ribbon cable, these drives can be auto configured as master or slave. CS works like this: A jumper on each drive is set to the CS option. The cable itself is just like a normal IDE cable except for one difference -- Pin 28 only connects to the master drive connector. When your computer is powered up, the IDE interface sends a signal along the wire for Pin 28. Only the drive attached to the master connector receives the signal. That drive then configures itself as the master drive. Since the other drive received no signal, it defaults to slave mode.
What are the four possible configurations for a PATA drive installed in a system?
Primary Master Primary Slave Secondary Master Secondary Slave Primary or Secondary will depend on which cable are you using to connect the drive. Master or Slave will depend on the drive's jumper configuration.
What happens when two drives are connected to the same data cable connected to an IDE channel. How does BIOS know which drive controls the channel's?
There are jumpers on the drives that differentiate the master from the slave. If the jumpers aren't set correctly, the BIOS will not recognize them. In addition, some IDE ribbon cables are also labled Drive 0 (or Master) and Drive 1 (or Slave). If the jumpers are set correct, but the drives are plugged into the ribbon cable incorrectly, the computer will not recognize the drives.
An IDE cable has both a master and a slave connection?
yes
If a single hard disk is attached on a primary IDE channel what should the jumper be set to?
master if the ide cable has a single drive connection. if the ide cable has the master and slave connection. then set the drive to master with slave.
When two drives connect to the same data cable how does bios know which is the master and slave?
depends on the BIOS and the Hardirves. Some older IDE drives have a switch or a jumper on them that u can select Master or Slave. Some computer you can change this in the BIOS. Master being the controller and slave being the controlled
What should the primary jumper be set to On a primary IDE channel if a single hard disk is attached?
master if the ide cable has a single drive connection. if the ide cable has the master and slave connection. then set the drive to master with slave.
What type of hard drive do you have to set a master and slave jumper for?
Some IDE drives have a master/slave jumper, but a significant number of IDE drives defaulted to a "cable select" setting where the drive would determine for itself whether it was the master or the slave by which of the two sockets on the cable it was plugged into.
