How to configure master and slave in bios for two hard disk drives in a single system

Hi,
I have 2 SATA Hard drives. In one of my Hard drive, boot sector went bad. So I will not be able to boot boot into my computer using that hard drive. I bought another SATA hard drive. I have some important data on my old hard drive. I want to know how to make my old hard drive as slave and my new hard drive as master. When I connect new hard drive and old hard dive to my computer, old hard drive is not detected. I even checked in checked in BIOS. After booting the computer I also checked in device manager, my old doesn’t show up. I also checked fro the jumper in my hard drive. Jumper is not there in both of my hard drive. I’m sure that only boot sector is gone bad in my old hard drive because I’m getting that message on the screen. Can some one help me turning hard drive master and slave.

Info: brand name of Old hard drive is Hitachi. New hard drive is seagate.

Thanks in advance.

SNGX1275

Posts: 10,606 +464
  • Jul 26, 2012
  • #2

There is no master/slave with SATA drives.

You control which one boots by the boot order in the BIOS. If your drive isn’t showing up something is seriously wrong with the drive. Based on what you have said, I suspect that your drive has died and that error is only displaying because a boot sector won’t be found on a dead drive. But before all hope is lost.

I’d try connecting it to a different SATA port on the motherboard, sometimes there are more than 1 controller (SATA I, SATA II, or a RAID) and I suppose there is a tiny chance you had a controller go bad. Not likely though, esp if you plugged the new drive into the same controller and it shows up.

Jumpers on SATA drives were used in the past (on some drives) to force a legacy mode if the drive was SATA II and your motherboard could only handle SATA I.

cliffordcooley

Posts: 12,983 +6,307
  • Jul 26, 2012
  • #3

Another possibility is that a few SATA ports may be disabled if they are set to IDE mode.

Bharathwaj

  • Jul 27, 2012
  • #4

Joe Lunchpail

  • Jan 22, 2018
  • #5

SNGX1275

Posts: 10,606 +464
  • Mar 10, 2018
  • #6

Apologies for bumping this again after a month and a half, but hey its not as bad as bumping it after 5.5 years.
Joe Lunchpail – I don’t know your background or age and it is dangerous to make assumptions, so my apologies if I’m totally wrong here. But there reason there is so much "gobbley-gook" is because IDE stuff is confusing to people that didn’t "grow up" with it. Really the ONLY sure fire way to make IDE work even on IDE only boards (pre SATA) was to force Master and Slave jumpers correctly. There seemed to be various ways boards dealt with Cable Select (CS) and incorrectly jumpered drives. So as a result you get people that post what worked for them, but the problem with that is while it probably did work for them, they often didn’t give any details on what the exact hardware/chipsets were that they were running. So yes, there was a lot of confusion and a lot of people didn’t want to screw with jumpers so things were difficult – the only real way was to jumper appropriately and skip cable select all together. What further complicated things was once you hit ATA-66 you needed 80 wire cables vs 40, those ribbons were fragile and easy to get connection problems in them if they got bent too much. So that added another complication in troubleshooting things.

The tl;dr of this is: glad you got it sorted – however just because you figured it out quickly doesn’t mean all the stuff you read is any different than what you just posted.

Disclaimer: it has been almost 20 years since I knew these things and I didn’t know them incredibly clearly then, the computing world and standard were still very raw back then, so what I said above may not be 100% correct.

Integrated Drive Electronic hard drives use master and slave settings to help the computer tell the two devices apart when connected to the same cable. The IDE interface type connects peripheral devices such as hard drives and optical drives to a computer; also referred to as “Parallel ATA” drives, the IDE standard is the more modern Serial ATA device connection standard’s predecessor.

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1 Two Devices on One Cable

Master and slave designations are relevant when two devices share the same cable for manually selecting which drive gets which designation. While the names imply the master drive has priority over the slave drive, the only difference between the two is the name. Master and slave refer to “channel 0” and “channel 1” respectively. According to Apple, neither the master or slave drive has any special status or functional difference over the other. Master and slave designations have no bearing on boot priority. The devices will work in any configuration as long as there’s not two master drives or two slave drives. According to Seagate, if both drives are configured using the “cable select” setting instead of the master and slave settings, the computer BIOS assigns the master and slave settings based on which cable plug is connected to which device.

2 Selecting Device Channels

A computer determines if a hard drive is the master or slave depending on the position of the pin jumper next to the cable connection on the drive. Hard drives usually include some sort of diagram on the device as to which pins designate which configuration. When configuring two drives, set the jumper to match the master position from the diagram for one of the drives and set the second drive’s jumper to match its slave position from its diagram. The jumper positions vary from device to device and should be considered independent for the hard drive. Jumpers can be removed and re-positioned by hand or with tweezers.

3 Setting Up the Drives

The computer case must be opened to configure the hard drives; only work inside a computer with the power off and after donning a static-resistant wrist strap or at least touching metal to discharge any static in your body.

The hard drive jumpers can be difficult to work with if the hard drives are already installed in the computer’s case, so remove the hard drives from the case if necessary. The configuration order is: set the jumpers, install the hard drives in the bay, connect the IDE cable to the motherboard and connect the IDE cable to the hard drives.

4 Drive Management Best Practices

IDE hard drive management best practices include connecting as few devices to a cable as possible and using the master setting for devices with a dedicated cable.
A single hard drive on a dedicated cable will work exactly the same if its set as slave or master; however, setting the drive to master avoids having to change the settings when adding a secondary slave drive later. Master and slave settings are useful for older systems that don’t support cable select settings or when only one device supports cable select.

references

  • 1 PC Magazine Encyclopedia: Definition of: IDE
  • 2 PC Magazine Encyclopedia: Definition of: PATA
  • 3 Apple Support: Archived – Power Macintosh G3 and G4: IDE Master and Slave Support and Configuration
  • 4 Seagate: Jumper Settings for Seagate and Maxtor ATA Hard Drives
  • 5 PCWorld Documents: Installing IDE Hard Drives
  • 6 WD: SATA and EIDE Hard Drives
  • 7 Computer Hope Jargon: Installing a PC IDE/EIDE Hard Drive
  • 8 Computer Hope Jargon: Master

About the Author

Dan Stone started writing professionally in 2006, specializing in education, technology and music. He is a web developer for a communications company and previously worked in television. Stone received a Bachelor of Arts in journalism and a Master of Arts in communication studies from Northern Illinois University.

One of the more confusing aspects of EIDE hard drive configuration for those new to computer building is the master/slave relationship. It’s actually not very hard to understand, however.

Traditionally, most motherboards had two EIDE interfaces (primary and secondary). Each interface could support two devices, making a total of up to four drives. Newer motherboards may have only one EIDE interface, or none at all, as SATA has become the new drive standard. If you plan to use EIDE (PATA) drives, make sure you buy a motherboard that supports PATA. (You also can buy an add-in PATA controller.)

How to configure master and slave in bios for two hard disk drives in a single system

The primary EIDE connection will be labeled on the motherboard as either IDE-0 or IDE-1, depending on the mood of the person who made up the stencil. If they chose to use IDE-0 and IDE-1 for the two channels, then the primary is IDE-0. But if they are labeled IDE-1 and IDE-2, then IDE-1 is the primary.

They may also be labeled as EIDE or ATAPI, rather than IDE, on some boards. It all means the same thing.

Because modern IDE controllers are integrated into the drives, not mounted on the motherboard, the drives have to decide for themselves how to share the same IDE interface.

To accomplish this, one drive on each interface is assigned as the "master," and the other drive (if present) is assigned as the "slave." The controller on the master drive also controls data transfer in and out of the slave drive.

When the master drive is idle, the slave drive may transfer data. But if the master drive is communicating with the computer, then it instructs the slave drive to wait. For practical purposes, this means that two drives that frequently write to each other should not be in a master / slave relatiohship on the same EIDE channel. Put them on different channels instead.

How to configure master and slave in bios for two hard disk drives in a single system

By convention, the master drive is attached to the connector on the IDE cable that is farthest from the motherboard (that is, the one at the very end of the cable) and closest to the off-center middle connector.

On an 80-conductor EIDE cable, the connectors are also color-coded: The master gets connected to the black connector, the slave to the gray, and the blue to the motherboard.

Using Cable Select

Many drives also offer a "cable select" (CS) option. When using cable select, each drive is jumpered (more about this on the next page) to the "CS" setting. A special signal is sent to pin 28 of the drive attached to the master drive connector, which instructs that drive to become the master drive and to assume the duties of controlling data transfer on that EIDE channel. Conversely, because this signal is absent on the drive connected to the slave connector, that drive assumes the slave mode. Pretty smart, huh?

I suggest you use the CS setting on all PATA drives. Why? Because it saves you the annoyance of having to remove existing drives to look at the little label and see how to reset the jumpers if you change the drive assignment or add a drive later on. They’re not all the same.

Deciding on ATA Hard Drive Positions

By common convention, when using IDE drives, the first partition on the master drive on the primary IDE channel contains the operating system and is called the system drive. This is not an absolute necessity, but it’s the way things are usually done.

When using SATA drives, the operating system is customarily installed on the first partition of the drive attached to the primary SATA controller. Once again, this is not an absolute requirement, but it’s how it’s generally done.

Other than the system drive (which should be assigned as stated above), you have some flexibility in assigning the rest of the IDE devices. When making these decisions, the most important thing to remember is that the master and slave drives on the same IDE channel cannot both transfer data at the same time.

What this means in practical terms is that data transfer between a master and and a slave drives on the same IDE channel will be slower then data transfer between drives on different IDE channels, because only one of the two drives is allowed to communicate at any given time. Therefore, you should try to avoid placing two drives on the same IDE channel if one of those drives will frequently be used to transfer data to the other.

If you are a musician, for example, and you frequently copy your tracks from an IDE hard drive to your CD-RW drive, then try not to slave the CD-RW to the hard drive. Similarly, if you frequently copy CD’s from a CD-ROM drive to a CD-RW drive, then try not to place those two drives on the same IDE channel.

Finally, be aware that a few IDE hardware devices must be set as masters (and a very few others must be set as slaves) in order to work. Read the drive’s documentation to find out if any of the devices you’ve selected for your homebuilt computer fall into this category.

(And, of course, if you are using all SATA drives, then none of this stuff applies to you at all.)

Hi all,
can some one tell me, how to make a SATA hard disk a Master disk or a Slave disk. what does it really mean?

Posts: 2,610 +6
  • Jun 6, 2007
  • #2

This is my understanding – hopefully someone will correct me if I am wrong (edit: I will edit until I get it right – lol):

In the IDE setup, the Jumpers on the hard drives are used to make the selection for Master one of 2 ways.

Either via Cable Select (drive position must be on the end of an 80 wire 40 pin cable usually on IDE Primary Channel connector) or by Master select (drive position must be on the end of an 80 wire 40 pin cable usually on IDE Primary connector OR in the middle of a 40 wire 40 pin cable on either the Primary or Secondary connector).

Usually, you create this on the Primary IDE connector.

In Sata there’s no such thing as master/slave. There’s only one drive per channel.

Windows sets the first partition of the first detected boot drive as C:, regardless of master or slave or SATA.

I think I have this right – any help greatly appreciated because I have had a lot of trouble trying to get the differences and nuances clear.

Mictlantecuhtli

Posts: 4,049 +13
  • Jun 6, 2007
  • #3

To be more precise, there’s no such thing as master / slave in SATA. There’s only one drive per channel.

Posts: 2,610 +6
  • Jun 6, 2007
  • #4

tx – I will integrate that info

edit: if you have multiple Boot operating systems/drives (c, d, e) and 2 are on 1 disk and 1 on another, they would all show at startup asking which to boot to/from, RIGHT.

And, is the first partition set as C: if it doesn’t contain an OS.

Mictlantecuhtli

Posts: 4,049 +13
  • Jun 7, 2007
  • #5

The boot partition in Windows is the one that contains boot.ini, NTLDR and NTDETECT.COM. That’s C: if you format the drive with Windows setup.

I didn’t really understand the multiple OS boot question. What shows up in boot menu depends on the boot manager used.

SNGX1275

Posts: 10,606 +464
  • Jun 7, 2007
  • #6

Also CCT and whoever else following this, you won’t need to do any fancy jumper settings with your IDE just because you have a new SATA drive. Think of them (because they are) as 2 completely seperate things where what you do to one doesn’t affect the other.

Whether your system wants to boot from IDE or SATA is entirely dependent on how you have it set in your BIOS. I can put Windows on a drive as Primary Master IDE and have a running system, then I can connect a SATA drive, set my BIOS to boot from that before the IDE, and have Windows installed to that drive. If SATA is set to boot first in the BIOS it will boot off the installation on the SATA drive, if I change it to check out the IDE channels first it will boot off that Primary Master drive. In fact, thats how some people do it that don’t want to be hassled with or don’t know how to modify/edit their bootloader.

  • Jun 9, 2007
  • #7

Dear all,
tell me how to change a SATA disk that’s recognized by BIOS as "Slave" in to a "Master". This is what the case in my machine, that it says no "Master disk is detected" and asks for "F1" to be pressed to resume, when booting.

Posts: 2,610 +6
  • Jun 9, 2007
  • #8

Some motherboard Sata connections (I say some because I don’t know if they all do) have associations as either Master (boot) or Slave (data).

For instance, my mobo has Sata 1 & 2 channels as Master and 3 & 4 Slave.

Thus, it is likely your Sata drive is hooked to the wrong port for Master.

Read your manual, examine the connector diagram.

mugotyou

  • Jun 20, 2007
  • #9

SNGX1275

Posts: 10,606 +464
  • Jun 20, 2007
  • #10

mugotyou

  • Jun 23, 2007
  • #11

just to say thanks

Thanks for the Seagate tip but, it would’nt run on my system. program said that there needed to be at least 1 seagate hdd I have 2 Western Dig. hdds. Sorry if I did’nt make that clear. I strongly suspected that I would have to get a cloning program but I did’nt know there were any comprehensive ones as freeware. I was considering buying Acronis’s true Image program and there was a link thru the Seagate prog. that offered an upgrade to Acronis True Image ( The Seagate Utility is powered by Acronis ) for 40% off. So I jumped on it! Since picking up Acronis I found out that West. Dig. has a program as well : West. Dig./ downloads/ Data Lifeguard Tools. I ran the West. Dig. utility ( as there was a problem with the Acronis download ) and the problem is solved!! I don’t think the WD utility is anywhere near as comprehensive as the Acronis ( or Seagate ) Image program. So I’ll be tweaking things with Acronis and will post back with the results. Hope this might help someone else as well. Thanks again for the sound advice.

TomBrooklyn

  • Aug 12, 2007
  • #12

I have a Dell Dimension 4600 purchased 02/04 and I want to do the same thing as the OP, install a SATA drive and copy WinXP and some programs to it from the current C drive, a Seagate IDE. My computer always sees the SATA drives in the boot sequence before the IDE drives though so I’m having trouble. I can’t seem to alter this in the BIOS and I flashed to the latest BIOS which is A012 (from late 2004.)

I can boot with the Sata installed now seemingly because it is empty and unformatted. The computer doesn’t see it.

How to configure master and slave in bios for two hard disk drives in a single system

Master/slave technology is part of the legacy Parallel ATA (PATA) standard. ATA stands for Advanced Technology Attachment and is available in a newer serial flavor known as Serial ATA or SATA. The newer standard has many advantages over the PATA setup, but PATA is still in wide use in older systems.

How to configure master and slave in bios for two hard disk drives in a single systemA computer motherboard.

The master/slave relationship is part of a transmission protocol that bridges communication between a hard disk and the motherboard it’s attached to. In this type of setup, a flat, wide parallel cable runs from an interface on the motherboard to the hard drives. Each parallel cable has two female ports to accommodate up to two drives. The primary port connects to the master drive, the secondary port to a slave drive. The master drive is the boot drive.

How to configure master and slave in bios for two hard disk drives in a single systemInformation about master/slave designations can be found in the BIOS menus.

When installing two PATA drives on a single parallel cable, each drive must be configured with a jumper to designate it as the primary or secondary drive, master or slave. Failure to set the jumpers will prevent the system from recognizing the drives properly. The parallel cable itself might also be labeled as to specific master and slave ports. Information about these designations in a system is available within the motherboard’s BIOS menus.

While the initial versions of SATA were comparable to speeds of advanced versions of PATA, the serial cable allowed the speed barrier to be quickly surpassed. Unlike parallel cables, serial cables are narrow and unobtrusive, allowing for better airflow inside the system case. SATA also uses a dedicated interface and cable for each drive, eliminating the two-in-one master/slave standard of PATA. SATA drives do not need to be jumper-configured and are plug-and-play, unlike PATA drives.

Before purchasing a hard disk, individuals should be sure to check if the interface is PATA or SATA. Consumers should note that PATA drives can be found inexpensively and can be a good choice for an external archive drive, even if the system drives are SATA. Systems can also generally handle a mix of internal SATA and PATA drives, though this would not be ideal for a RAID array, as the PATA drive would slow it down. Computer users should check their motherboard manual for specific information about the capabilities and interfaces available on their system.

This does not apply to Serial ATA drives (SATA). SATA drives have one cable per drive.

ATA drives are configured at the factory for a cable select setting and is the recommend configuration on most computer setups. This allows the drive to assume the proper role of master or slave based on the connector used on the cable. For the cable select setting to work properly, the cables you are using must support the cable select feature. Current UltraATA cables with the 3 colored connectors do support this feature.

Setting master or slave is an alternate method to cable select. Depending on your computer and the existing hard drive, setting master/slave may be useful. One ATA (IDE) drive on the ribbon cable is referred to as a single drive. Two ATA drives physically plugged into the same 40-pin/80-conductor ribbon cable are paired in a master/slave set up. The drive jumpered as the boot drive is the C: or master drive. The drive jumpered as the non-boot drive is the slave drive. It is usually designated as the D: drive. Two ATA drives physically on two separate ribbon cables are not master/slave and are jumpered independently.

Determine which drive is the master and make sure it is jumpered correctly. Set the jumpers on the other drive to the slave setting. If one of your drives was made by another manufacturer, you will need to contact that manufacturer for master/slave jumper settings on that drive. The ATA ribbon cable has a marking along one edge. That marking or coloration marks pin 1. Make sure pin 1 on the ribbon cable is pointing towards pin 1 on both hard drives and also on the ATA controller card connector. Both hard drives will need a DC power connection.

Normally the newer drive will need to be the master. Different BIOSs and ATA controllers can impact this. If you have determined that both ATA drives are jumpered correctly for master/slave and they still do not work, try to bring the new drive up as a stand alone or single drive. If the new drive works fine as a stand alone and fails as a slave, try bringing it up as the master with the original drive as the slave. Jumper changes will be necessary on both drives.

If the drives work in this configuration, there is a decision to be made. You can leave the drives in the working configuration and transfer the necessary data from the original drive (now slave) to the new master drive. If the reverse configuration is preferred, then you will need to purchase a PCI Ultra ATA controller.

The slave is the term used when a computer peripheral works under the control of another component. Users can adjust slaves/ peripherals by adjusting jumpers. The slave set allows a drive to act as secondary and work on a single IDE/ATAPI cable. Today, the cable select option has effectively replaced the IDE/ATAPI setting that determines the point of connection on IDE cable. Slaving hard drives means enabling a user to utilize multiple hard drives with a SATA or IDE cable.

Slave hard drives have different configurations and setting depending on their cable type.

Difference between Master and Slave Hard Drives

How to configure master and slave in bios for two hard disk drives in a single systemImage source: unspalsh.com

As a user, you might have heard the terms ‘master’ and ‘slave’ and wonder what they mean in computer terminology. Explaining in terms of status, the master drive is the one that is in command while a slave is the one that receives the order.

In terms of hierarchy, the master drive is the one directly plugged into the motherboard through the IDE cable. Each time your computer boots, it considers the master drive as the primary drive to operate and run. Slaving hard drives gives a secondary or auxiliary drive to the computer. A slave hard drive generally operates as a secondary storage device. If we take storage in focus, slave hard drives usually contain backup of data and used as storage in terms of a system crash. Master HDD has an operating system, and the computer takes it as a primary source of storage if a slave is not present. Storage of data along with operating system might cause frequent crashes and slave drives helps in distribution of data load from master HDD. Finally, a slave HDD contains no jumper setting. The jumper has a designated configuration in the master HDD that allows a computer to distinguish it as a primary drive.

Steps to Make an HDD Slave

1. Research Your Machine

How to configure master and slave in bios for two hard disk drives in a single systemImage source: unspalsh.com

First, inspect your machine for the motherboard and other peripheral settings. Before installing a new drive as a slave, reviewing your machine will give you an idea about possible drives it can accommodate. Usually, a machine contains one primary or master drive, which makes it easy for slaving hard drives as secondary. You will also know the cable, jumper, and other configuration on your motherboard, making the process easy. Take note that if you already have two drives installed, configuring another as a slave becomes tricky.

2. Check Space and Cable Type

Check whether you have space available in your casing for another hard drive. Slaving hard drives means you have to install another one with your existing drive. If your machine does not contain space, consider using external connectors like USB or FireWire to use a secondary HDD. After determining space, check for the cable type. There are two types of cable configurations SATA and IDE. The IDE cable wide, thick and flat whereas the SATA cable has a thin diameter of a pencil. Knowing about the types of cables in your computer’s motherboard makes it easy to pick the right Hard Disk Drive.

3. Disconnect the Power

How to configure master and slave in bios for two hard disk drives in a single systemImage source: unsplash.com

Disconnect all power sources to your computer and tap the power supply a few times to release all the static electricity. Static electricity is a significant danger to sensitive computer parts that most people ignore. Wear rubber slippers while working or wear grounding bracelets to eliminate static electricity from your body.

4. Set Jumpers

After you ensure the disconnection of power and static electricity, the next step is to set the jumpers (for IDE configuration). Most IDE cables allow the connection of two drives within a single line. You already have one HDD as master on the cable and want others to act as a slave. Check for jumper configurations on HDD for setting it as master and remove the jumper entirely for slaving hard drives. If you have a SATA cable, no need to set jumpers as each HDD comes with separate cables. You can set the dive with the operating system in BIOS as master and others as slaves.

5. Mount and Connect Power

Once you have all the cables and jumpers set, you need to restore power to your machine. Make sure all the screws, cables and mounting is proper before using the machine. Connect the power cables for each and configure them in BIOS for auto setting as a slave or set primary and secondary drives (for SATA configuration).

Setting in BIOS for Slaving Hard Drives

  • Restart your computer and once it boots, press the F2 or Delete button rapidly to enter the BIOS screen
  • If prompted for a password, enter and proceed
  • Navigate to the CMOS Setup and then press Enter. Usually, new motherboards have CMOS as the primary interface
  • In the CMOS, find Hard Disk and then Primary Master Selection. Press to auto-detect the master drive
  • Move towards Primary Slave, and also auto-detect
  • Once you have both drives confirmed, go to the main screen and press F10 to save settings and exit BIOS

After exiting, your computer will restart, and you will see all the configured hard drives during the booting screen.

Causes of Slave Hard Disk Problems

Incorrect Setting

One of the most common causes of errors of slave HDD is an incorrect setting. Generally, when you add two or three hard drives without the selection of master or slave settings. Your computer will not boot the new drives and could not restart. That is why people get slave or master HDD error.

Incorrect or Loose Fixation

Setting the jumpers and cables is the main part of the smooth functionality and operations of computer parts. Loosened jumpers or cables give slave or master HDD error. While slaving hard disks, ensure the jumper setting according to the steps mentioned above. Have all the jumpers connected accordingly and reconfigure the settings if you detect errors.

Corrupted Hard Drives

Hard drives with a corrupt file system are the most undetected error cause. Corrupted hard drives remain unidentified until a major error happens. Bad sectors keep hard to drive damaged and give master or slave error that needs rectification.

Overall HDD error occurs due to the causes mentioned above. Having a professional detect them early on is the key to have a smooth and functioning hard drive.

Use the common jumper settings for Samsung hard disk drives that are listed below. Please verify the jumper setting by checking the label on your hard disk drive.

Important: If you partitioned and formatted your hard disk drive, with the General or 32 GB pin setting, and now need to use the opposite pin setting; remember to partition and format the drive again after changing the pin settings.

How to configure master and slave in bios for two hard disk drives in a single system

Configuring your Hard Disk Drive (Master, Slave, or Cable Select) – Setting the Jumper

  • If this is the only HDD in your computer, set the pin setting to Master.
  • If this is the second HDD in your computer, set the pin setting to Slave.
  • If this is the second HDD in your computer, and the first drive is set to Cable Select, set the pin setting to Cable Select.
  • If you are replacing the HDD in your computer, set the jumper setting to match that of the drive you are replacing.

Cable Select:

    • This setting is the default setting for PATA/IDE hard disk drives. With the Cable Select jumper setting, the BIOS determines whether a hard disk drive is Set as Master or Set as Slave by it’s position on the UDMA cable.
    • If the hard disk drive jumper is set to Cable Select and is connected to the black connector on the end of the UDMA cable, it is recognized as Set as Master for that PATA controller.
    • If the hard disk drive jumper is set to Cable Select and is connected to the grey connector on the middle of the UDMA cable, it is recognized as Set as Slave for that PATA controller.Note:When using Cable Select, your system must meet the following conditions:
      • Your systems host controller must support Cable Select.
      • Your hard drives must support Cable Select.
      • Your cable must support Cable Select.

      Set as Master:

      • Use this setting if you are installing an additional hard disk drive to a single UDMA cable with a hard disk drive Set as Slave, jumper one hard disk drive to Set as Master, and the other to Set as Slave.
      • Use this setting if you are installing an additional hard disk drive to a single UDMA cable and the Cable Select setting is not recognized.

      Set as Slave:

      • Use this setting if you are installing an additional hard disk drive to a single UDMA cable with a hard disk drive Set as Master, jumper one hard disk drive to Set as Master, and the other to Set as Slave.
      • Use this setting if you are installing an additional hard disk drive to a single UDMA cable and the Cable Select setting is not recognized.

      32 GB Clip Setting:

      Use this on computers manufactured before November 1998 when either you start up your computer and see the message, “Hard disk drive controller failure“, or your system stops responding during the boot process after installing a new drive. This occurs when the hard disk drive is too large for the BIOS to support.