Atari Portfolio Overclocking Tutorial (english)

The Portfolio can easily be overclocked from 4,9 MHz to 6,5 MHz by simply replacing the Quarz. You just have to make sure you have the "HC49U-S" variant, or else it won't fit in the case.

MHZ.COM for measuring the CPU clock: https://drive.google.com/open?id=1BKg_wzjhz850f3bD-sEQpR7G_9geLAfY

German version: https://makertube.net/w/dqUCVZh9u15UDuQMKLnQ6G

Epic Unease by Kevin MacLeod is licensed under "Creative Commons Attribution" (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100406 Artist: http://incompetech.com/