jackin@vehka.uta.fi (Markku M{enp{{) (08/23/90)
I seem to have problem with my Mega. After a few hours work my Mega (2) starts to act weird. Few of the symptoms : - ususal crashes with 2,4..30 (or so) bombs - screen goes white, but the program is still working only I can't see it. If the program updates screen/window etc. it will be OK for a while. - there are other, but as I usually go very near of nervous breakdown when these things happen my mind mercifully forgets them :-) The time before weirdness starts is relative to the space between the Mega and my desk (more airspace, more time). Any suggestions ? I can replace quite a few components myself and if I can't my friends can. Thanks, Markku (jackin@vehka.uta.fi)
andyc@hplsla.HP.COM (Andy Cassino) (08/24/90)
jackin@vehka.uta.fi writes: | I seem to have problem with my Mega. After a few hours work | my Mega (2) starts to act weird. Few of the symptoms : | | - ususal crashes with 2,4..30 (or so) bombs | - screen goes white, but the program is still working | only I can't see it. If the program updates screen/window etc. | it will be OK for a while. | - there are other, but as I usually go very near of nervous | breakdown when these things happen my mind mercifully forgets | them :-) | | The time before weirdness starts is relative to the space between the | Mega and my desk (more airspace, more time). | | Any suggestions ? I can replace quite a few components myself and if | I can't my friends can. My Mega 2 had the very similar problems from the start, especially on warm days. I "solved" the problem at first by allowing lots of air space around the computer. When the 6-chip TOS 1.4 ROM set was installed the problem could no longer be ignored. The dealer solved it by replacing some low-power Schottky drivers with some standard Schottky drivers. Sorry, it's been about a year and I can't remember exactly what parts were replaced. It did fix the problem "for good", though. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Andy Cassino % % Hewlett-Packard - Lake Stevens Instrument Division % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%