New System Power Requirements

[Mark617]

Hey,

System:
Corsair RMx 750
Intel 12400f
3070 Ti

I know I am in the clear with the above setup, but I wanted to pull two WD Red Plus drives out of externals and put them inside. I have read the spec sheet and it tells me average power use is 8.8 watts read / write, but nothing about startup power. Googling randomly, I find I should average about 25 watts per drive (so 50 total) at startup. (1) Is this about right?

(2) Should I be concerned with the 750x not being enough under max load (I know I may never get there, just hypothetically speaking, so I know where I stand)?

(3) Finally, I know I should use dedicated rails for my GPU instead of doubling up through one of the PCIe power cables, but is the same true for HDDs? I assume not, and that I can use a single PSU cable / rail to power multiple HDDs, especially since each cable comes with three sata connectors (though each PCIe cable comes with two, so there's that lol).

Thank you.

 

[WhitehawkEQ]

Your right about the PCIe cables for your 3070 2 cables per, your ok with using 1 cable for the HDD's. The power usage for the HDD's is very small compaired to the CPU and GPU.

 

[EarthDog]

1. Maybe?
2. Nope.
3. Nope.

 

[Mark617]

1. Maybe?
2. Nope.
3. Nope.

Thanks for clarifying #1.

It's irrelevant given #2 so that works for me.

 

[EarthDog]

I've honestly never worried about HDD spinning, even when I had a couple of raptors, a caviar black and caviar greens leading the charge. I also don't tend to size oversize my PSU as much as others and still never had a problem. You'll be fine!