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How many watts will my 4k gaming build need and should i add liquid cooling for my cpu and gpu?

I am building my first gaming pc and was wondering how much power i needed for my build and if i should add liquid cooling for my gpu and cpu

Components
CPU:Intel: Core i7-7700K 4.2GHz Quad-Core Processor
Cpu cooler: Cooler Master - Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler
Motherboard: Asus STRIX Z270-E GAMING ATX LGA1151 Motherboard
Ram: G.Skill: Ripjaws V Series 32GB (2 x 16GB) DDR4-2133 Memory
Storage: Western Digital: BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive
GPU: Dual MSI GeForce GTX 1070 8GB Video Card (2-Way SLI)
Case: Corsair 750D ATX Full Tower Case
Power supply: EVGA - SuperNOVA G2 850W 80+ Gold Certified Fully-Modular ATX Power Supply
Optical Drive: Asus BC-12D2HT Blu-Ray/DVD/CD Writer
OS: Microsoft: Windows 10 Home OEM 64-bit
Monitor: Asus ROG PG27AQ Black 27” 4K/UHD 3840X2160 IPS NVIDIA G-Sync Gaming Monitor
*If i am missing any thing please tell my in the answer section (besides thermal paste)
Reply to sawyerFTW259
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More about watts gaming build add liquid cooling cpu gpu
  1. for SLI 1070s at least get a 700w PSU. Honestly though you may be better off getting a 1080ti. SLI 1070s may perform slightly better in some games, but will be much worse in other games that dont work well with SLI.
    Reply to R4DIO4CT1VE
  2. Best answer
    sawyerFTW259 said:
    I am building my first gaming pc and was wondering how much power i needed for my build and if i should add liquid cooling for my gpu and cpu

    Components
    CPU:Intel: Core i7-7700K 4.2GHz Quad-Core Processor
    Cpu cooler: Cooler Master - Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler
    Motherboard: Asus STRIX Z270-E GAMING ATX LGA1151 Motherboard
    Ram: G.Skill: Ripjaws V Series 32GB (2 x 16GB) DDR4-2133 Memory
    Storage: Western Digital: BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive
    GPU: Dual MSI GeForce GTX 1070 8GB Video Card (2-Way SLI)
    Case: Corsair 750D ATX Full Tower Case
    Power supply: EVGA - SuperNOVA G2 850W 80+ Gold Certified Fully-Modular ATX Power Supply
    Optical Drive: Asus BC-12D2HT Blu-Ray/DVD/CD Writer
    OS: Microsoft: Windows 10 Home OEM 64-bit
    Monitor: Asus ROG PG27AQ Black 27” 4K/UHD 3840X2160 IPS NVIDIA G-Sync Gaming Monitor
    *If i am missing any thing please tell my in the answer section (besides thermal paste)


    I second the above opinion on the 1080Ti. Not all games are optimized for SLI and always go with a powerful single instead of two lower end GPUs. I'd suggest a good air cooler or an AIO cooler for the CPU. I have that CPU/MOBO and an H115i and it still runs extremely hot. The 850W power supply is the least I'd get for a build of that quality.
    Reply to posology
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