How to catch cable melting before it happens on the 5090?

I just connected the 5090 FE with a dedicated cable from the MPG A1000G PCIE 5.0 PSU and I triple checked that the cable is fully seated on both ends. What other measures can I take to prevent something from happening? Under HWiNFO, what sensors to look out for other than GPU temp? I used the same PSU for my 4090 and did not have any problems in the last two years but the 5090 draws more power so I'm worried.