Hard Drive Upgrade Install Guide
Add The New Hard Drive - Set The Hard Drive Jumpers
At this point, the computer is powered off and I'm ready to add the new hard drive as a second hard drive. Since there is only one hard drive installed at the start of the upgrade, the old hard drive is already installed as the master hard drive on the first IDE cable. The new hard drive is added as the slave hard drive on the first IDE cable (the same IDE cable as the old hard drive, but using the slave IDE connector).
The first step is to set the jumpers on the back of the hard drive into the slave position. These pictures show the back of the hard drive which also contains a label indicating what each jumper settting means.
To get a close-up in which you can actually read the jumper label in the picture, I've taken two separate close-ups of the label and placed them side-by-side with the first showing the left-hand side of the label and the second showing the right-hand side of the label. Clicking on any picture makes an even larger image. For details of what each jumper setting means, see this
Deskstar 120GXP Jumper Description at the IBM/Hitachi Storage Technical Support site.
It can be confusing to know how to set the jumpers just from looking at the label. As you read across the left-hand and right-hand pictures, you'll notice that a setting for "DEVICE 0 (MASTER)" appears twice. Same for "DEVICE 1 (SLAVE)". But the first mention applies to "16 HEADS" and the second mention applies to "32GB Clip". The Deskstar 120GXP Jumper Description does a good job of clearing up the confusion, so rather than repeat it here I'll just strongly recommend you give it a look.
Here are links to jumper information for other popuplar hard drive manufacturers.
The default, shipped, jumper setting for the IBM Deskstar 120GXP 80GB jumpers is in the "16 HEAD", "DEVICE 0 (MASTER)" position and this is how mine arrived. Here's a close-up showing the jumpers circled in red. The IBM Deskstar 120GXP 80GB hard drive has nine jumper pins and two jumpers. The jumpers are white and rectangular in shape and are shown inserted over two pairs of pins. Notice the pins covered by the jumpers match the jumper label diagram as shown in the side-by-side pictures for "DEVICE 0 (MASTER)" next to "16 HEADS" . This is the correct jumper setting to use for the hard drive after the hard drive has been cloned and it is ready to become the Master hard drive.
But at this point in the hard drive upgrade procedure the new had drive is being added to my computer as the slave hard drive. Although the jumpers are small, you should be able to use just your fingers and move the jumpers such they are set into the slave position. In my case, that means setting them as shown here. Again, it can be confusing because the same picture shows, and right above the jumpers themselves, a jumper diagram labeled "DEVICE 1 (SLAVE)" which shows a different jumper setting. But that "DEVICE 1 (SLAVE)" jumper setting is for "32GB CLIP". Some computers (i.e., older computers) cannot use the whole 80GB and this jumper setting "clips" the hard drive down to a 32GB slave hard drive. My computer can use the full capacity of the hard drive. You'll notice the jumper positions in this picture match the jumper diagram for "DEVICE 1 (SLAVE)" next to "16 HEADS" shown in the previous side-by-side pictures.
Not all hard drives have the same jumper options and labeling as the Deskstar 120GXP. For example, here is a Western Digital WD1200JB (120GB) hard drive. Notice that the labeling is on top of the hard drive rather than on the rear. In addiition, there is only one jumper since the Western Digital does not support re-configuring the number of heads in the drive or the total size of the drive.
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