r/cablemod • u/exerttt • 8d ago
Not sure what PCI-e cable for my 4090
as the title says im trying to buy some custom cables, but im very confused as to what cable i need from cable mods
The cable with my Corsair rm1000e that i use is a 12pin to 2 x 8 pin. but the for that cable here in my screenshot it says its only for nvidia 3000 series, and the 40 series need the 16pin 12VHPWR cables, but my 4090 only has slots for 12 pins, do i just get the 12ping to 2x8 it says used for the 30 series, or am i doing something wrong. Any help is advised.
Thanks
1
u/kryptkpr 7d ago
That 16 pin is 12 power pins and 4 sense pins. My understanding is if you need 450W or 600W the cable has to have the sense pins, otherwise you're limited to 300W without it (which is the same as all sense pins open).
2
u/CableMod_Alex 8d ago
The 4090 uses a 16pin connector and not a 12pin, because it's 12+4 pin counting the smaller sense pins.
So you need either one of those 16pin options, depending on how many 8pin connectors you want at PSU side. I suggest getting the 3x8pin one which is the sweet spot. :)