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Compaq Presario CQ5810 Desktop PC support

Jumper Settings for the Installation of Hard Disks and CD, CDRW, and DVD Drives

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The following information helps set the required Cable Selection settings on a hard drive or optical drive. Each hard drive setting is used by the Computer's BIOS to tell the system where the hard drive is located and what priority it has in relation to the other drives. Most hard drives and computers that were manufactured after 2002 probably do not need to have the hard drive jumper settings changed - this includes all SATA drives.
To check the hard drive jumper settings or to physically set hard drive jumpers, continue using this document.

Identifying cable connections and insuring proper jumper settings

NOTE: This document contains a procedure that is highly technical. The person performing the procedure should have extensive computer experience working with both hardware and software.
WARNING:The edges of metal panels can cut skin. Be careful not to slide skin along any interior metal edge of the computer.
CAUTION:This product contains components that can be damaged by electrostatic discharge (ESD). To reduce the chance of ESD damage, work over a noncarpeted floor, use a static dissipative work surface (such as a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface.
For more information on a given topic, click the heading or the accompanying plus (+) sign to expand the information.
The jumpers for hard disk(s) and CD/DVD drives are located on the back of the drive. The jumper is a small metal slider covered by a rectangular piece of plastic. Jumpers for hard drives are designed to slide over and connect the two metal pins together so that electricity can flow between them.
Before you can use the jumpers, you must know the hard drive setting for each pair of pins.
Pin information might be printed directly on the hard drive label, the hard drive PCA board under the pins, or etched in the surrounding plastic or metal near the pins. Some drives use a default setting when there is no jumper attached. The hard drive settings can be, but are not limited to, the following:
  • MS, MA, DS, 0, or M = Master or Device 0. The drive is the first drive to be used on the cable/channel (connected to the end connector on an IDE cable).
  • SL, PK, 1, or S = Slave or Device 1. The drive is the second drive to be used on the cable/channel (connected to the middle connector on an IDE cable).
  • CS, CSEL = Cable Select. The drive can be automatically set up by a capable system.
If you cannot find the names of the hard drive settings for the pins, you will need to refer to information from the drive manufacturer - either from the drive manufacturer's support Web site or from any available manuals that came with the drive when it was purchased.
The pins are usually located on the back of the drive next to the ribbon cable connector. The drive should have three or four pairs of pins for setting the drive.
Next, you need to know the location and type of each available channel connector on the motherboard. There are two main types of connectors used by drives:
  • IDE and SATA. An IDE ribbon cable plugs into either a primary or secondary IDE connector on the mother board. Each IDE cable supports up to two IDE compatible hard drives
  • A SATA cable plugs into a SATA connector. Each cable supports one drive. Generally, no jumper configuration is necessary.
Each of the connectors is labeled on the motherboard. Your computer might have one or no IDE connectors as well as no SATA or many SATA connectors. The capabilities of attaching a hard drive to your computer are limited by the number and type of IDE and SATA connectors on the motherboard. For example you cannot connect 2 SATA drives if there is only one SATA connector available on the motherboard.
Figure 1: Example of motherboard connectors for drives (your computer configuration might be different)
1 - IDE connectors (primary and secondary)
2 - SATA connectors 1 through 4
Lastly, the type of cable used might also affect the configuration of your drives.
For SATA drives, all that is needed is to connect the SATA cable to the motherboard connector and the drive.
Figure 2: Example of SATA connections
1 - Power cable connection
2 - SATA cable and connector (90 degree type, connector type might vary)
For IDE drives, however, use an IDE ribbon cable (40 wire standard or 80 wire Ultra-IDE or EIDE). The ribbon cable connects a hard drive or CD/DVD drive to the motherboard. It is possible to connect up to two devices on the same ribbon cable, as long as the cable has three connectors (one that plugs into the motherboard and two that plug into the back of the drives).
Figure 3: Upper IDE cable connectors
1 - Slave connector (middle)
2 - Master connector (end)
Figure 4: Example of an IDE connection
1 - IDE ribbon cable and connection
2 - power cable connection
Now that you understand the hard drive setting, the channel connectors, and the cable types, you are ready to check the jumper settings for the drives.
Click on the appropriate heading below to expand the information.
NOTE:When using one Western Digital hard drive on one cable, it might need to be set to "Single". See hard drive documentation for details.
  • Set the hard disk jumper as CS or Single. Connect the drive using the Master connector on the primary IDE cable.
  • Set the CD/DVD drive jumper as CS. Connect the drive using the Master connector on the secondary IDE cable.
NOTE:If Master (MA) is selected on the first device, then the second device on the same cable must be set to Slave (SL). If Cable Select (CS) is used on the first device, then the second device on the same cable must also use CS.
  • Set the first hard disk jumper as Master (alternatively, Cable Select selection can be used but set the second hard drive to Cable Select). Connect the drive using the Master connector on the primary IDE cable.
  • Set the second hard disk jumper to Slave (use the Cable Select selection if Cable Select was set on the first hard drive). Connect the drive using the Slave connector on the primary IDE cable.
  • Set the CD/DVD drive jumper as Cable Select. Connect the drive using the Master connector on the secondary IDE cable.
NOTE:When using one Western Digital hard drive on one cable, it might need to be set to "Single". See hard drive documentation for details.
NOTE:If Master (MA) is selected on the first device, then the second device on the same cable must be set to Slave (SL). If Cable Select (CS) is used on the first device, then the second device on the same cable must also use CS.
  • Set the hard disk jumper as Cable Select or Single. Connect the drive using the Master connector on the primary IDE cable.
  • Set the first CD/DVD drive jumper to Master (alternatively, Cable Select can be used if you set the second CD/DVD drive selection to Cable Select). Connect the drive using the Master connector on the secondary IDE cable.
  • Set the second CD/DVD drive jumper to Slave (use Cable Select if Cable Select was used on the first CD/DVD drive). Connect the drive using the Slave connector on the secondary IDE cable.
NOTE:If Master (MA) is selected on the first device, then the second device on the same cable must be set to Slave (SL). If Cable Select (CS) is used on the first device, then the second device on the same cable must also use CS.
  • Set the first hard disk jumper to Master (Cable Select can be used if you set the second hard drive selection to Cable Select). Connect the drive using the Master connector on the primary IDE cable.
  • Set the second hard disk jumper to Slave (Use Cable Select if Cable Select was used on the first HDD). Connect the drive using the Slave connector on the primary IDE cable.
  • Set the first CD/DVD drive jumper to Master (alternatively, Cable Select can be used if you set the second CD/DVD drive selection to Cable Select). Connect the drive using the Master connector on the secondary IDE cable.
  • Set the second CD/DVD drive jumper to Slave (use Cable Select if Cable Select was used on the first CD/DVD drive). Connect the drive using the Slave connector on the secondary IDE cable.
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