On 3/23/2012 9:27 AM, Brian wrote:
I have a Zip GSX card with the following components: 64Mhz crystal, 74LSO logic chip, 14Mhz CPU, and 32k cache memory (using two 6" RAM chips and two 3" ones). It works fine, but I want to upgrade it to 64k cache. But when I upgraded the cache to 64k (and adjusted the dips accordingly) the system doesn't turn on, just makes some beep noises). When I downgrade back to 32k it works fine. What do I need to do to get it running at 64k?
Err, you're clocking the card with 64MHz xtal? Isn't that like... 16MHz?