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Need a PSU for my first build

MixedOpinion

Here are my specs for the computer.

 

CPU: Ryzen Threadripper 3970X

Motherboard: TRX40 Creator

CPU Cooler: Corsair H100i Platinum

GPU: Radeon RX 5700XT

RAM: x8 16GB Crucial Ballistix Memory

SSD: x5 Crucial BX500 2.5 inch 2TB SSDs

Case Fans: x2 Corsair AF120 Red LED fans

 Can somebody give me a idea of the wattage PSU I need for this computer all the calculators online say I need 750 Watts but I want a second opinion on that. not sure of the accuracy of those.

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10 minutes ago, MixedOpinion said:

Here are my specs for the computer.

 

CPU: Ryzen Threadripper 3970X

Motherboard: TRX40 Creator

CPU Cooler: Corsair H100i Platinum

GPU: Radeon RX 5700XT

RAM: x8 16GB Crucial Ballistix Memory

SSD: x5 Crucial BX500 2.5 inch 2TB SSDs

Case Fans: x2 Corsair AF120 Red LED fans

 Can somebody give me a idea of the wattage PSU I need for this computer all the calculators online say I need 750 Watts but I want a second opinion on that. not sure of the accuracy of those.

 

That's about right.

ThreadRipper, especially with a 32-core / 64-thread chip like that, can suck a lot of power.

750W, IMO, with the 5700 XT will be okay, but a bit on the lower side.

Would personally recommend a 850W to give more headroom, even more so if you decide to overclock the CPU and/or GPU.

 

I hope you are not just getting a TR4 CPU just for gaming...

 

I would also swap the CPU cooler.

That dinky 240mm AIO is going to have a hard time keeping that 32-core / 64-thread cool.

You'd want a 280mm, while 360mm is recommended.

Plus, get a AIO that has a CPU block / coldplate DEISGNED for TR4.

If the coldplate doesn't properly cover the CPU, you'll have hotspots....which is not good.

 

Review of the H100i RGB Platinum with the ThreadRipper 2950X.

H100i RGB Platinum not recommended.

 

https://www.kitguru.net/components/cooling/james-dawson/corsair-h100i-rgb-platinum-tr4-follow-up-review/

Quote

In our previous review of the H100i RGB Platinum installed in an i7-7700k system it performed very well. However, this time around, trying to cool the Threadripper 2950X was a different story, as the much higher TDP proved a bit much for the H100i RGB Platinum to handle.

 

Since Corsair specifically list support for socket TR4, we expected the H100i RGB Platinum to perform a little better.  At stock CPU speed the thermal performance is adequate, but as soon as overclocking comes into the equation temperatures do start to soar. During our productivity tests, the H100i RGB Platinum was even beaten by the much cheaper Arctic Freezer 33 TR.

 

If you don't know the Arctic Freezer 33 TR is a medium-size tower cooler (version with TR4 support), and THAT performed better than the H100i.

 

Arctic Announces the Freezer 33 TR: An Air Cooler Designed for AMD's  Threadripper

Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz (still tweaking) -- i7-6800K
  • Gigabyte Z390 Aorus Master -- ASUS X99 Deluxe
  • Sapphire NITRO+ RX 6800 XT Special Edition Sapphire NITRO+ RX 5700 XT Special Edition -- 2x Sapphire NITRO R9-Fury in Crossfire
  • 32GB G.Skill TridentZ DDR4-3000 CL14 (16GB TridentZ RGB + 16GB Red/Black TridentZ)
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO + 1TB WD SN750
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
  • Phanteks Enthoo Luxe Tempered Glass Edition
  • Ekwb Custom loop
  • Logitech G502 Proteus Spectrum + Corsair K70 (Red LED, anodized black, Cheery MX Browns)

AMD Ryzen Rig

  • AMD R7-5800X
  • Gigabyte B550 Aorus Pro AC
  • 32GB (16GB X 2) Crucial Ballistix RGB DDR4-3600
  • Gigabyte Vision RTX 3060 Ti OC
  • EKwb D-RGB 360mm AIO
  • Intel 660p NVMe 1TB + Crucial MX500 1TB + WD Black 1TB HDD
  • EVGA P2 850W + White CableMod cables
  • Lian-Li LanCool II Mesh - White

Intel Z97 Rig (Decomissioned)

  • Intel i5-4690K 4.8 GHz
  • ASUS ROG Maximus VII Hero Z97
  • Sapphire Vapor-X HD 7950 EVGA GTX 1070 SC Black Edition ACX 3.0
  • 20 GB (8GB X 2 + 4GB X 1) Corsair Vengeance DDR3 1600 MHz
  • Corsair A50 air cooler  NZXT X61
  • Crucial MX500 1TB SSD + SanDisk Ultra II 240GB SSD + WD Caviar Black 1TB HDD + Kingston V300 120GB SSD [non-gimped version]
  • Antec New TruePower 550W EVGA G2 650W + White CableMod cables
  • Cooler Master HAF 912 White NZXT S340 Elite w/ white LED stips

AMD 990FX Rig (Decommissioned)

  • FX-8350 @ 4.8 / 4.9 GHz (given up on the 5.0 / 5.1 GHz attempt)
  • ASUS ROG Crosshair V Formula 990FX
  • 12 GB (4 GB X 3) G.Skill RipJawsX DDR3 @ 1866 MHz
  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
  • Thermaltake Frio w/ Cooler Master JetFlo's in push-pull
  • Samsung 850 EVO 500GB SSD + Kingston V300 120GB SSD + WD Caviar Black 1TB HDD
  • Corsair TX850 (ver.1)
  • Cooler Master HAF 932

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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Welcome to the forum!

 

Judging by power consumption in benchmarks online the Threadripper 3970X seems to draw around ~200W under a single-thread load, ~400W under a multi-thread load, and the 5700XT seems to draw around ~225W. Based on that I'd recommend a good quality 750W supply, like the Corsair RMx 750W or EVGA SuperNova G3 750W

Main PC:

AMD Ryzen 7 5800X • Noctua NH-D15 • MSI MAG B550 Tomahawk • 2x8GB G.skill Trident Z Neo 3600MHz CL16 • MSI VENTUS 3X GeForce RTX 3070 OC • Samsung 970 Evo 1TB • Samsung 860 Evo 1TB • Cosair iCUE 465X RGB • Corsair RMx 750W (White)

 

Peripherals/Other:

ASUS VG27AQ • G PRO K/DA • G502 Hero K/DA • G733 K/DA • G840 K/DA • Oculus Quest 2 • Nintendo Switch (Rev. 2)

 

Laptop (Dell XPS 13):

Intel Core i7-1195G7 • Intel Iris Xe Graphics • 16GB LPDDR4x 4267MHz • 512GB M.2 PCIe NVMe SSD • 13.4" OLED 3.5K InfinityEdge Display (3456x2160, 400nit, touch). 

 

Got any questions about my system or peripherals? Feel free to tag me (@bellabichon) and I'll be happy to give you my two cents. 

 

PSA: Posting a PCPartPicker list with no explanation isn't helpful for first-time builders :)

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How about the Be Quiet Dark Power Pro 11 850w?  Amazon for $199.  You could certainly find a cheaper unit, but you do have a pretty premium system picked out, might as well get a premium power supply for it too.

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