Essentially I am considering upgrading from RTX 3090 to RTX 4090; however I have only two 8-pin PCIe cables plugged into my PSU (Corsair HX1200 80 PLUS PLATINUM).
I assumed since each cable can handle 288W, for a total of 576W, I could just use them without needing to install new power cables (since Im not even sure how Ill reach the PSU in an already-built machine).
However I was informed that each cable is essentially taking a max of 150W from the PSU. Is there no way to give them access to higher power?
In my PSU documentation, they mention "In the “SINGLE” position, the full output of the power supply’s +12V rail is available to any and all connectors, while in the “MULTIPLE” position, each individual connector has Over-Current Protection so no more than 40A of current can be delivered on any given cable."
https://assets.corsair.com/image/upload/corsairmedia/sys_master/productcontent/HX_Manual.pdf
Does that change anything? Or is it still the same issue.
I assumed since each cable can handle 288W, for a total of 576W, I could just use them without needing to install new power cables (since Im not even sure how Ill reach the PSU in an already-built machine).
However I was informed that each cable is essentially taking a max of 150W from the PSU. Is there no way to give them access to higher power?
In my PSU documentation, they mention "In the “SINGLE” position, the full output of the power supply’s +12V rail is available to any and all connectors, while in the “MULTIPLE” position, each individual connector has Over-Current Protection so no more than 40A of current can be delivered on any given cable."
https://assets.corsair.com/image/upload/corsairmedia/sys_master/productcontent/HX_Manual.pdf
Does that change anything? Or is it still the same issue.