How to change the LPT port within CMOS
How to change the LPT port within CMOS.
Change LPT port mode
When connecting a parallel device such as a parallel port printer to a computer it may be necessary to change the mode that the parallel port is using either to help prevent conflicts or to allow the device to communicate with the computer. Examples of parallel port modes include: Unidirectional, Bi-directional, EPP, and ECP.
To configure this setting in CMOS setup and find the parallel port mode and change it from its current setting to the setting suggested by the peripheral manufacturer.
Tip: If you are not sure what to set this to we suggest bidirectional or EPP if available.
If your printer or other peripheral manufacturer is suggesting a parallel port mode that is not available see if your motherboard manufacturer has a BIOS update to add this feature. If no BIOS update is available that extends the available parallel port modes it may be time to upgrade.
Change LPT port
In addition to changing the LPT port mode it may be necessary to change from LPT1 (0x3BC) to LPT2 (0x378) or LPT3 (0x278). By default all computers will assign the LPT port to LPT1, if you wish to change this value either because of resource conflicts or because of the addition of additional LPT ports this setting can also be adjusted from AUTO to a manual setting in the computer CMOS setup.