5 ms·
(showing my age here) I also recall that on early IBM PCs with a monochrome monitor and a Hercules graphics card, it was possible to set the refresh rate to ze
by flyinghamster 10y ago
(showing my age here)
I also recall that on early IBM PCs with a monochrome monitor and a Hercules graphics card, it was possible to set the refresh rate to zero and toast the monitor.