The original PC/Xe (64k) adapters do not use the same drivers as the newer PC/Xe (8k) or AccelePort Xe adapters. You may verify which type of adapter you have using the list of serial numbers at the URL below. However, the easiest method of determining which adapter and therefore which driver to use is to simply examine the adapter. The original PC/Xe (64k) adapters have 2 banks of dip switches on the adapter, are full length and require the use of the PC/Xe (64k) drivers. The newer adapters all have 4 dip switches visible through a rectangular hole in the mounting bracket and are approximately a half length size. Any adapter with the 4 dip switches is newer and capable of using the AccelePort Xe (8k) drivers. The URL for the hardware manual for the original PC/Xe (64k) adapters is listed below.  

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