Mitchell_K_Hobish@cup.portal.com (03/01/88)
A caller to my BBS has tried to use her Everex 1200 modem on an 8MHz IBM PC compatible, using a NEC V-20 CPU. THe system appears to work just fine at the standard 4.77MHz, but when she kicks into the 8MHz turbo mode, all she gets is garbage on the screen. According to her, it looks a lot like line noise. Cutting back to 4.77MHz during the same connection reestablishes clear contact. Can anyone help us figure out what's going on here? Thanks in advance.