jszyliow@diana.cair.du.edu (11/24/90)
I have an old zenith with a 20MG hardrive and and a 5.25 floppy that suddenly "freezes up", that is, I'm running a program and all of a sudden nothing works on the keyboard. The problem has been diagnosed as a faulty motherboard. Is it worth fixing? (the quote I got was $500).
arra@inmet.inmet.com (11/26/90)
I have a Z-248 (AT "compatible") that displayed similar "freezing" symptoms. I got unreasonably high repair estimates (in my opinion), so I tried myself. I noticed that a short power off time resulted in very short "on" time, and a longer off time gave a longer on time; seemed possibly a heat related problem. The 80286 chip was running VERY hot, and if I kept it artificially cool, the machine stayed up longer without hanging. For less than $50 dollars, I replaced the CPU, and it runs fine now. ===================== arra@inmet.inmet.com Arra Avakian Intermetrics, Inc. 733 Concord Ave Cambridge, MA 02138 (617)661-1840 x4500 =====================