I have a P4C800-E motherboard. Have a Ten-Tec shortwave radio attached to the serial port. Had a near lightning strike recently, messed up a few things in the house. Computer controlled radio stopped working. Sent radio to Ten-Tec, they replaced RX232 chip, checked radio, said it is working OK and sent it back. Plugged radio in to computer and doesn't work. Cannot operate this radio independent of the computer, it is computer control only. Attached a Uniden scanner radio to serial port and it does not seem to work under computer control. Works fine independent of computer. Device manager says the serial port, COM 1, is working. Otherwise the computer seems to work fine. I have it on a APC UPS.
Any suggestions on trouble shooting the serial port?
Any suggestions on which PCI card to buy if I decide the motherboard port is not working and I need to add 1 or 2 serial ports with a PCI card?
Any suggestions on setting up PCI card? Which IRQ to use? Com 1 is 4. Disable COM 1 and use 4?
Thanks in advance for any suggestions.
Any suggestions on trouble shooting the serial port?
Any suggestions on which PCI card to buy if I decide the motherboard port is not working and I need to add 1 or 2 serial ports with a PCI card?
Any suggestions on setting up PCI card? Which IRQ to use? Com 1 is 4. Disable COM 1 and use 4?
Thanks in advance for any suggestions.