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Re: set the jumper to use the drive as e, external drive
There usually is no specific jumper. Just set it to "master" and it should work. The external enclosure supplies the appropriate host interface, so there will be no conflict with any other internal disk.
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Serial ATA: If you have a 3.0 Gbit/sec SATA drive that is not being detected by your 1.5Gb/sec SATA controller, or it causes your system to lock up when connected to a 1.5 Gbit/sec SATA controller, you may need to jumper your 3.0 Gbit/sec SATA drive to the slower speed of 1.5 Gbit/sec for the system to recognize it properly. For further information on changing the jumper setting to slow down your SATA drive's transfer rate, please see Document ID: 193775. - -- (Click to expand) Jumper settings for Seagate SATA drives - -- (Click to expand) Jumper settings for Maxtor-brand SATA drives
ATA: It is recommended that all Seagate ATA hard disks supporting the Cable Select jumper option be configured as Cable Select. If your computer system was built prior to October 1998 and does not support UDMA 66 or greater you will be required to use the Master/Slave jumper settings.
- -- (Click to expand) Jumper settings for Seagate ATA drives - -- (Click to expand) Jumper settings for Maxtor-brand ATA drives
When using Cable Select jumper settings on your ATA drive, all devices connected to the UDMA cable must also use the Cable Select setting. The cable decides master/slave device detection when the cable select jumper settings are used. Please consult Document ID: 196299 for further instructions.
1. Decide which hard drive will be the startup (master) drive. If this drive was the startup drive previously, or if it's a new hard drive, then the master drive designation will already be set. 2. To change the designation of a new drive to be a slave drive, skip to step 4. 3. To change the designation of an existing drive to be a slave drive: Turn off the computer, unplug the power cord, remove the drive from its drive bay, and disconnect the drive from its power cord and ribbon cable. 4. Check the hard drive documentation or the label on the drive itself for master/slave jumper settings. 5. Find the jumpers on the circuit board of the drive. Jumpers are plastic plugs with metal sleeves that form a circuit between a pair of pins. Jumper locations are labeled on the board with a J followed by a number (such as J20). 6. Use tweezers or very small pliers to remove or reposition the jumpers to the configuration shown in the documentation or on the disk label.
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Check your jumpers on the hard drive. DON'T leave it connected very long if the jumpers are not set for master / slave (furthest away/ closest to the IDE port on the computer or it can mess up the circuit boards on one or both drives! If you are using only one hard drive, set the jumper(s) for "cable select" (often abbreviated CS). If it still doesn't detect the drive, the drive may not have an "active" partition on it. You can solve that by booting to your OS installation CD -- assuming you have one!
You should be able to use it as Cable Select or "CS" address the label of your drive to establish which pins need to be jumped for this mode.
Certain manufactures are different, and require drives to be set to Master while on certain controllers, such as the one you are using for External.
These settings will not harm the drive, providing you follow the label, you may just have to use trial and error. Just make sure you stay within the "CS" "MA" "SL" or Cable Select, Master, and Slave options.
No Jumper Settings are required for external drives, they are all setup as Slave by default, and if you try to open the case, to take the drive out and change the Jumper Settings, you will invalidate the warranty.
external USB hard drives do not need to be jumpered, if your computer does not recognize the ext. drive probably it is because the enclosure is defective, when you connect the USB cable you should get the "ding-dong" connection sound.
If you think that your computer recognizes the hard drive then jumper it as "secondary" or "cable select" and install it INTERNALLY, then transfer your data, that will prove that there's a problem with the ext. enclosure.
One more thing, maybe the USB port you use is malfunctioning, try one that you know that works (assuming that you have other USB devices that work).