New Build - Will a 330w PSU be enough with a 1070ti?


Case Bender
Original poster
Aug 23, 2018
I am upgrading a HTPC and am concerned that 330W with a 1070ti won't be enough to power it. The calculators I have been using have been giving conflicting answers. Points of concern:
  • Wall power unknown quality - I live in an apartment complex.
  • 330W AC Adapter reliability - does it really provide 330W?
  • Component wattage consumption - should I even try 330W with this setup?
  • CPU: AMD - Ryzen 3 2200G 3.5GHz Quad-Core Processor (Purchased For $98.89)
  • CPU Cooler: Noctua - NH-L9a-AM4 33.8 CFM CPU Cooler ($39.90 @ Amazon)
  • Motherboard: ASRock - AB350 Gaming-ITX/ac Mini ITX AM4 Motherboard (Purchased For $94.99)
  • Memory: G.Skill - Ripjaws V Series 8GB (1 x 8GB) DDR4-2666 Memory (Purchased For $81.99)
  • Storage: Western Digital - Black PCIe 256GB M.2-2280 Solid State Drive (Purchased For $89.99)
  • Video Card: Zotac - GeForce GTX 1070 Ti 8GB Mini Video Card ($399.99 @ Newegg)
  • Other: Dell 330W Replacement AC Adapter for Dell Alienware x51 Desktop, Alienware M18x M18x R1, R2, R3, AM18X-6732BAA, Alienware M18x-0136 W7HP64 , M18X-0143, 100% compatible with P/N: F0K0N, 331-2429, 320-2269, XM3C3, ADP-330AB B, DA330PM111, CN-0XM3C3. ($102.00)
  • Other: HDPLEX 400W HiFi DC-ATX (Purchased For $95.00)
  • Other: Skyreach 4 Mini ($230.00)
  • Other: Machined ON/OFF Switch ($36.00)

I am relatively new to building computers. This will be my second one. So feel free to explain things to me like I am 5. It is also my first post, so if I am posting in the wrong place or something, I am happy to correct it asap.


Cable-Tie Ninja
Jan 3, 2018
Firstly welcome,

That setup looks good to me. The Dell 330W brick should be able to handle all that fine.

As to whether the 330W dell brick actually gives you 330W - Safe to assume genuine dell bricks do (i.e bought from dell directly). Aftermarket dell bricks can be a bit hit and miss, but I bought mine from Amazon and it works fine.

This was also my second PC build - but this case is really easy to build in despite it's size. Previous livestreams on Josh's youtube channel are worth a watch if you're at all unsure

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Reactions: MrExodus


Aug 16, 2017
Should be fine.

Reviews show 1070ti's power usage to be around 180W at stock, OCed around 230W with peaks up to 290W. Safe to say you shouldn't overclock.

2200G with its gpu disabled is pretty much an r3 1200, shouldn't guzzle more than 40W. Mobo and peripherals around 20W.

That said, why an APU if you're gonna use discrete gpu? Although $98 sounds like a good deal.


Case Bender
Original poster
Aug 23, 2018
Thanks for the advice! My brick is a genuine Dell brick (or that's what the writing on it says). THANK YOU for locating a livestream. Massively helpful.

Thanks for the quick math on the wattages. Great observation on the APU. It is only because I am upgrading an old HTPC that has no graphics card and that is what is in there now.