2 ms·
We're a lot closer to the limits of copper than I realized. Apparently motherboard designers have to make the length of clock/data traces for DDR5 memory as clo
by ryukoposting 2y ago
We're a lot closer to the limits of copper than I realized. Apparently motherboard designers have to make the length of clock/data traces for DDR5 memory as close to equal as possible, otherwise the entire bus just doesn't work right (maybe this isn't news to other folks).
- bangaladore 2y agoYou have to do that for all high-speed multipin interfaces. Generally, once you get past roughly 100 MHZ, it is good practice to match the lengths as well as possible, even though it probably doesn't matter until a couple of gigahertz (it depends on many factors, but generally, signals move at 15 cm per nanosecond on PCBs).