QUOTE(Vannus @ Oct 25 2022, 09:55 PM)
Sorry guys, some correction after reading standard 6/8Pin PCIE connector spec, "most 6 pin PCIe connector with 2 x12V yellow wires"
**Rule of thumb = 14awg wire carries a maximum of 15 amps, 16awg can carry 10 amps of current where as 18awg can only carry 7 amps of current
Found something interesting, check the below 2 links from aliexpress on the 4-1 adaptor
Adaptor 1. It's written there says that
a.) Wire gauge: UL3265 14AWG + 28AWG
b.) Current rating 9.2A = x4 PCIE connected x2 yellowwires x 9.2A x 12V = 883.2W. (But if 14AWG max is 15A = x4 x15A x12V = 1440W max)
https://www.aliexpress.com/item/10050048556...763876148%21recAdaptor 2. The same adaptor but with different cable spec
a.) Wire model: 18AWG
b.) Not mentioned, I assume is 7A = x4 PCIE connected x x2 yellowwires x 7A x12V = 672W
https://www.aliexpress.com/item/10050048399...695947517%21recLooks like the regardless 14awg, 16awg, or 18awg, all met the 600W rating. However looks like 14awg is overkilled, 18awg rated just on the line, the best is stick with 16awg
Cablemod.com is selling the 12vhpwr cable 4-1 comes with 16awg which in my opinion is good.
Just sharing my opinion, I could be wrong.

the connector melt because contact not good, if user bend the connector like side way/bend downward(because never read the f*king warning), may be only 25% or less surface mate with each other, instead of 100% and possibly create arcing ,
acing will further create resistant due to oxidization between contacts, that's where molten connector come from.
wires gauge has very little to do with melting connector, last time i working in switchboard for motor controller, the cable is not thicker than those PCIE 8 pins, like half and only 5 cores (3 live, 1 N and 1 E),
i use the cable it can power up 3 phase vacuum motor lol, it run fine until shipped to STmicroelectronic China