kevin@neptune.AMD.COM (Kevin Tomasek) (08/15/89)
My apologies to those who have seen this question before... I have an AT clone that has a NEAT chipset and Phoenix bios. The mode command from DOS 3.3 used to try and set the port speed for the com ports indicates that there is an invalid parameter when com3 is addressed. It works correctly for com1 and com2. If I'm not mistaken DOS 3.3 supports four com ports. I am assuming that the clone mama board has not been set up for four com ports. If this is true has any one gone thruogh the excersize of trying to set up the extra com ports on a mama board like this one. I presently have a multifunction board with 2 com ports com1 and com2 they both work correctly. I am trying a friends internal modem which he is trying to sell me. If I want to use it I have to remove the multi function board since the com ports on it can not be disabled. The hardware description include information for the com1/2 ports and com3/4 is not mentioned anywhere. There do appear to be extra i/ocontrol?? ports . Any help with this would be greatly appreciated, whether it is tough luck buddy, to 'read so and so book'. If there was such a book I would prefer to get it any way. Thanks a bunch... kevin -- ************************************************************************* Kevin Tomasek kevin@neptune.amd.com AMD - Advanced Micro Devices, Austin, Tx (512)462-5381 *************************************************************************