aliu@aludra.usc.edu (Alex Liu) (07/01/90)
Recently, my LUCAS/Frances combo hasn't been behaving very well on my A500. In fact, Frances has become very flakey recently. This morning, my brother fired her up to do some Turbo rendering. After rendering a few spheres fastor then mere mortal Amigas, we decided to check the CPU_Speed. Whoa! It went -274 and broke the scale. Hm, either my Amiga is going turbo boost in the wrong direction or it has gone slowed to a crawl.... We tried this twice after booting my machine. Well of course when we ran our applications they were about as fast as any 020 running at 16Mhz with 32 bit mem. Oh BTW, after a few hours, the machine would vomit and explode and Frances refuses to work... until the next few hours... Heat? Well we have every fan in the house blowing.. Any help?> -Viet
vincelee@tornado.Berkeley.EDU (Vincent H. Lee) (07/03/90)
In article <10516@chaph.usc.edu> aliu@aludra.usc.edu (Alex Liu) writes: >Oh BTW, after a few hours, the machine would vomit and explode >and Frances refuses to work... until the next few hours... >Heat? Well we have every fan in the house blowing.. > >Any help?> > >-Viet After putting my lucas/frances in my 500, I found lots of flakey behavior too. It also crashed after running awhile. I thought that it was heat too. What it really seems to have been was noise. It seems the ram controller resides on top of the a500 ram chips, and the former doesn't like the latter. I did the following fix: 1) cut a small square of copper clad board (about 4" sq). 2) insulate one side with electrical tape 3) place the copper board under the controller chip and neighboring circuitry with the taped side towards the frances board 4) solder small lengths of wires from the edges of copper board to ground points on the frances board. Anyway, sorry to be so simplistic, but the above fix worked wonderously for me. My machine used to crash constantly. Now it never does! Hope this helps. -Vince