PCIe 8.0 Announced by the PCI-Sig Will Double Throughput Again

Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by glitchc on Thursday August 14, 2025 @08:31PM (#44907349)

If this is north america we're talking about, then 14 gauge is the standard for 120V 15A household circuits. By code, 20A requires 12 gauge. You'll notice the difference right away, it's noticeably harder to bend. Normally a house or condo will only have 15A wires running to circuits in the room. It's definitely not a standard upgrade, the 12 gauge wire costs a lot more per foot, no builder will do it unless the owner forks over extra dough.

Unless you performed the upgrade yourself or know for a fact that the wiring was upgraded to 12 gauge, it's very risky to just upgrade the breaker. That's how house fires start. It's worth it to check. If you know which breaker it is, you can see the gauge coming out. It's usually written on the wire.

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by jchw on Thursday August 14, 2025 @09:44PM (#44907748)

I was actually under the impression that it is allowed depending on the length of the conductor, but it seems you are right. The NEC Table 15(B)(16) shows the maximum allowed ampacity of 14 AWG cables is 20 amperes, BUT... there is a footnote that states the following:

> * Unless otherwise specifically permitted elsewhere in this Code, the overcurrent protection for conductor types marked with an asterisk shall not exceed 15 amperes for No. 14 copper, 20 amperes for No. 12 copper, and 30 amperes for No. 10 copper, after any correction factors for ambient temperature and number of conductors have been applied.

I could've sworn there were actually some cases where it was allowed, but apparently not, or if there is, I'm not finding it. Seems like for 14 AWG cable the breaker can only be up to 15 amperes.

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