Cable wattage?

Army165 · July 13, 2023

I bought a Corsair HX1000i for my new build. It came with the power cable needed for the 4xxx Nvidia GPUs. It only has 2 cable ends to plug into the PSU side, is that enough to power a 4090? The adapter that came with my 4090 has 4 plugs on the PSU side. Everything seems to work fine but I haven't pushed it hard yet. Battlebit on a 4090 doesn't make it work much.

Hinjima · July 13, 2023

Just now, Army165 said:

I bought a Corsair HX1000i for my new build. It came with the power cable needed for the 4xxx Nvidia GPUs. It only has 2 cable ends to plug into the PSU side, is that enough to power a 4090? The adapter that came with my 4090 has 4 plugs on the PSU side. Everything seems to work fine but I haven't pushed it hard yet. Battlebit on a 4090 doesn't make it work much.

If you are using the with the pigtail / daisychain 2x8pin per cable then that is completely fine on the Corsair HX1000i even with an RTX 4090. Its not recommended to use pigtail cables from lower PSU Tiers but the HX1000i and RM series from Corsair have very good daisy-chain cables and its completely fine to do so. I do the same with my RM750i and my RTX 4080.

starsmine · July 13, 2023

3 minutes ago, Army165 said:

I bought a Corsair HX1000i for my new build. It came with the power cable needed for the 4xxx Nvidia GPUs. It only has 2 cable ends to plug into the PSU side, is that enough to power a 4090? The adapter that came with my 4090 has 4 plugs on the PSU side. Everything seems to work fine but I haven't pushed it hard yet. Battlebit on a 4090 doesn't make it work much.

Either one works.
The modular side of the PSU is not a PCIe connector.
each connector is rated for 300W on the PSU side, hence why it splits out to two PCIe 8 pins on the other side.
For less cable clutter use the one the PSU comes with.

Army165 · July 13, 2023

1 hour ago, starsmine said:

Either one works.
The modular side of the PSU is not a PCIe connector.
each connector is rated for 300W on the PSU side, hence why it splits out to two PCIe 8 pins on the other side.
For less cable clutter use the one the PSU comes with.

Thanks! The bottom one is the one I am using. I couldn't find any information stating how much those cables could handle. I was willing to buy the Cablemod version but since this cable can handle 600 watts, I'll save a few bucks. I'm already using the Cablemod 90 degree thingy.