The GTX 960 only draws about 125W which is probably why you've been lucky so far and gotten away with using molex adapter cables. So I guess my question is, can a single molex cable with 4 ports supply enough power to my GPU via two 2x-molex-to-8-pin adapters? Or, do I need to just buy a whole new PSU? Or, is there a good place to look for cable kits for my PSU? Im wary of 2nd hand sellers since, as far as I understand it, using some cables not designed for the PSU can be a hazard.įor posterity, Here's my current build (and incoming change) To my understanding, there's basically no room for error here, I need all 300 watts just about, so any connection supplying only 75 watts will not work. I've been doing a bit of research in This thread and a bit on the stickied posts, but I'm unclear if I NEED to replace my PSU or if my 2x Molex to 8 pin adapters will suffice.

Imagine my shock when I was 2 pins short on upgrading to the 3070 Ti. Currently, my PSU supplies my 960 with a molex and a 2x Molex to 8pin and 2x molex to 6 pin adapter. I've never had to worry too much about how much power needs to go into my GPU, and the last time I messed with it was when the 960 was not new. Previously, this was all good for powering a GTX 960, a 1600x, and a mobo that fits. I've been using A Corsair HX750 to power my rig for the last 5-7 years (who can remember). Not super new to PC building, but certainly treading new waters here.

Molex to 8 pin connector