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850W PSU enough for SLI EVGA SC GTX 770s?


#1
I currently have a single EVGA 2GB GTX 770 SC and a 650W Cooler Master PSU. I'm getting a second 770 and I'm not sure if 850 watts will be enough to power two of them. I'm currently interested in this PC Power & Cooling power supply as it is on sale for $100 after rebate for Black Friday. I have also heard that this brand is very reliable and high quality.
 
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My Computer

System One

  • OS
    Windows 8 Pro 64-bit
    Computer type
    PC/Desktop
    CPU
    Intel Core i5-3570k @ 3.4GHz (OC to 4.0 GHz Turbo Boost)
    Motherboard
    Biostar TZ77B LGA 1155 Intel Z77 ATX
    Memory
    ADATA XPG Gaming Series 8GB DDR3 1600MHz (2x4GB)
    Graphics Card(s)
    1x EVGA GTX 770 2GB Superclocked w/ ACX Cooling
    Sound Card
    On Board
    Monitor(s) Displays
    1x ASUS VG248QE 24" 144Hz 1ms LED-LCD 3D Ready
    Screen Resolution
    1920x1080
    Hard Drives
    1x Corsair Force Series 3 90GB SATA III SSD (OS)
    1x Kingston SSDNow V300 Series 120GB SATA III SSD
    1x Hitachi DS7SAC100 1TB 7200 RPM 32MB Cache SATA II HDD
    1x Hitachi DT01ACA300 3TB 7200 RPM 64MB Cache SATA III HDD
    PSU
    COOLER MASTER GX Series 650W
    Case
    Thermaltake Armor A90 Mid Tower
    Cooling
    CM Hyper 212 EVO; 3x Intake 2x Exhaust Fans
    Keyboard
    Logitech K120 Wired Keyboard
    Mouse
    A4Tech X7 F5 Wired Laser Mouse
    Browser
    Google Chrome
    Antivirus
    Microsoft Security Essentials
Posts
24
#2
I would recommend at least a 1000 watt or more psu. It's not that much more money and you have more head room. Lots of new 1000W and above psu's available now and we should see some good cyber Monday prices.
 

My Computer

System One

  • OS
    8.1
    Computer type
    Laptop
    System Manufacturer/Model
    Lenova Flex 15
    CPU
    i5
    Memory
    8gb
    Graphics Card(s)
    Itel 4400
    Hard Drives
    ssd
    Browser
    IE
    Other Info
    Dell Venue 8 Pro 64GB

    Numerous Win 7 machines

dylanwerre

Member
Member
belgium

Posts
46
#3
i would reccomend using this site, i use it every now and then when i have to assemble a pc to have e thought about what psu is needed, its not 100% accurate so i would take a psu with a little bit more then they say eXtreme Power Supply Calculator
 

My Computer

System One

  • OS
    windows 8 x64 pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    hp
    CPU
    AMd 5800k
    Motherboard
    msi
    Memory
    8gig 1600MHz
    Graphics Card(s)
    amd radeon hd 8470
    Monitor(s) Displays
    2* aoc 27 inch full hd
    Screen Resolution
    HD(720p)
    Hard Drives
    1tb wd caviar blue
    Keyboard
    razer blackwidow ultimate 2013
    Mouse
    razer naga molten edition
    Internet Speed
    fibernet 120Mb/s
    Browser
    chrome ofcourse

azasadny

Moved to ten*****s.com
VIP Member
Guru
#4
PC Power and Cooling makes excellent power supplies but they're owned by OCZ, which just filed for bankruptcy, so I don't know that I would buy their power supplies...
 

My Computer

System One

  • OS
    Win 10 Pro 64bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built Intel i7-3770k-based system
    CPU
    Intel i7-3770k, Overclocked to 4.6GHz (46x100) with Corsair H110i GT cooler
    Motherboard
    ASRock Z77 OC Formula 2.30 BIOS
    Memory
    32GB DDR3 2133 Corsair Vengeance Pro
    Graphics Card(s)
    GeForce GTX 980ti SC ACS 6GB DDR5 by EVGA
    Sound Card
    Creative Sound Blaster X-Fi Titanium HD, Corsair SP2500 speakers and subwoofer
    Monitor(s) Displays
    LG 27EA33 [Monitor] (27.2"vis) HDMI
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung SSD 850 EVO 250GB (system drive)
    WD 6TB Red NAS hard drives x 2 in Storage Spaces (redundancy)
    PSU
    Corsair 750ax fully modular power supply with sleeved cables
    Case
    Corsair Air 540 with 7 x 140mm fans on front, rear and top panels
    Cooling
    Corsair H110i GT liquid cooled CPU with 4 x 140" Corsair SP "push-pull" and 3 x 140mm fans
    Keyboard
    Thermaltake Poseidon Z illuminated keyboard
    Mouse
    Corsair M65 wired
    Internet Speed
    85MBps DSL
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender, MalwareBytes Pro and CCleaner Pro
    Other Info
    Client of Windows Server 2012 R2 10 PC's, laptops and smartphones on the WLAN.

    1GBps Ethernet ports

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