Hello,
I want to put a 68040/40 on my lc575 board and I guess I need to change to a 20mhz oscillator. I found Chris Lawsons page on the parts needed but I can't seem to find the 'how-to' on actually changing out the oscillator.
Since I won't really be overclocking the chip, do you think I can get away without using a heatsink/fan?
Thanks all for the help.
Help with overclocking (kind of)
February 1, 2005 - 12:55pm
#1
Help with overclocking (kind of)
via this forum to Jag's house. Still wondering about the heatsink and fan...
If I remember correctly, the 40MHz 68040s used a rather minimal heatsink. No fan. As for changing the oscillator, I think you would have to remove the old one and solder in the new one.
http://web.archive.org/web/20030702143907/http://gabezing.sytes.net/lc575-40mhz-e.html
Enjoy!
Stuart
Got my mystic running at 40mhz now, with a 68040/40 chip. That was a fairly nerve racking soldering job - at least for me - made the vga mod to the analog board seem easy in comparison. Pretty cool result though!!! Now to get it running faster I don't need the serial ports to work, just my network card and I've got 70ns vram. Anyone got some faster than 20mhz oscillators they want to swap? I've got one at ~18 and another at ~19.