Power Supply Upgrade?

Gallarian

Distinguished
Hey guys,

Here is the full spec list for my current set-up:

Motherboard: MSI Z170A Krait Gaming ATX
CPU: i5-6600k @ 4.6GHz
Cooler: Corsair H100i (2x Corsair SP120 Fans)
GPU: MSI GTX 980ti Armor (1430mhz core)
RAM: 16GB Corsair Vengeance LED 3000
PSU: EVGA Supernova GS 550
Storage: Samsung 850 Evo 500GB + Crucial MX300 750GB
Case: NZXT H440 Matte Black (4x 120mm case fans)
Monitor: Asus PG279Q (1440p / IPS / 165hz)
Peripherals: Corsair K70 RGB + Logitech G600 + Logitech G900
LED Lighting: NZXT Hue+


I know I'm already pushing it close to the mark by running all that off of a 550 watt PSU - almost every power calculator out seems to think it wouldn't even work.

So here's my question: Would I need to upgrade my PSU if I went out and bought a 7700k and 1080ti this month?
 
Solution
I think it should be fine, I might worry if you had a low quality psu because you will be pushing it close to its rated wattage. I put your build with the 7700k in a psu calculator and got 427watts load at stock clocks. If you were to overclock the gpu and cpu you would likely be closer to 500watts load. So I don't think you need to upgrade the psu, but worst case scenario you may be pulling 500watt from a psu rated for 550watts so it may run a bit loud and hot under load.

Dunlop0078

Titan
Ambassador
I think it should be fine, I might worry if you had a low quality psu because you will be pushing it close to its rated wattage. I put your build with the 7700k in a psu calculator and got 427watts load at stock clocks. If you were to overclock the gpu and cpu you would likely be closer to 500watts load. So I don't think you need to upgrade the psu, but worst case scenario you may be pulling 500watt from a psu rated for 550watts so it may run a bit loud and hot under load.
 
Solution

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