Changing the Jumper Settings
The jumpers on the system board are preset to factory default positions, indicated by an asterisk (*) in the tables below. (See the illustration under “Locating the System Board Components” to locate jumpers.) Use the information in this section to change jumper settings, if necessary.
Note
Any jumpers not listed in the following tables are for service purposes only. Do not change their settings.
Miscellaneous jumper settings
Jumper |
| Jumper |
|
|
|
|
number |
| setting | Function |
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| |
|
|
|
| |||
JP2 |
| Enables | ||||
|
| Disables | ||||
|
|
|
|
|
|
|
JP25 |
| Off* | Enables | PCI | IDE | controller |
|
| On | Disables | PCI | IDE | controller |
|
|
|
| |||
JP49 |
| On | Clears CMOS memory (resets SETUP values to | |||
|
|
| factory | defaults) |
| |
|
| Off* | Normal | CMOS values | ||
|
|
|
| |||
JP50 |
| Enables | ||||
|
| Disables | ||||
|
|
|
|
|
|
|
* Default | setting |
|
|
|
|
Parallel port ECP mode DRQ
Installing and Removing Options |