Question PSU extension cable with broken pin

[Spyro 999]

I have a PCIe 6-pin extension cable with a broken ground pin.
My PC has a GTX 1650 SUPER in it.

I know my GPU draws around 100W of power and the motherboard power connector should be able to deliver 75W, as for a normal 6pin connector.

If one ground pin is broken on the connector should the max power be half of the usual 75W?

Is that ok to use such a cable?

 

[rgd1101]

replace the cable

 

[Spyro 999]

replace the cable

I wish I could but I do not have enough money to do so.

Is is "safe" to continue using my pc with that disconnected pin?

 

[Spyro 999]

Could I reroute a ground pin from the +2 connector to the 6pin?
Is that safe?