GTX 770 with 18 amps on the rail

Discussion in 'Videocards - NVIDIA GeForce' started by BadDriver, Aug 24, 2013.

  1. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
  2. 3dPlayer

    3dPlayer Banned

    Messages:
    1,820
    Likes Received:
    0
    GPU:
    Have
  3. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
  4. 3dPlayer

    3dPlayer Banned

    Messages:
    1,820
    Likes Received:
    0
    GPU:
    Have
    Ok.
    http://www.techpowerup.com/reviews/Zalman/ZM850-HP/images/sticker.jpg

    What do you mean by much older?How much time was the warranty?2yrs?10?

    720w/12
    Then you have 60A.I think you are good to go but lets see what the other folks have to say.

    Many PSUS after 2 or 5 yrs start to fail.

    If you have the money for a 770 maybe it would be a good idea to buy a brand new PSU, something like a XFX 650/750W Core Edition.

    Minimum Recommended System Power (W) 600 W
    http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-770/specifications
     
    Last edited: Aug 24, 2013

  5. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,135
    Likes Received:
    0
    GPU:
    2x 980Ti Gaming 1430/7296
    you have much more power than you need. enjoy
     
  6. JJayzX

    JJayzX Master Guru

    Messages:
    434
    Likes Received:
    1
    GPU:
    Evga GTX 970 SSC
    The card will have 36 amps available because it should use 2 plugs, so power from 2 rails.
     
  7. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
    I read on the internet that u never count the rails together so 2x 18 amps on doesnt give the card 36 amps.

    If the GTX 770 needs 19 amps than i am short of 1 amp with this psu.

    Its 5 years old now.

    The max amp is 21 a GTX 780 needs 20.83. no cards needs more then 21 amps.

    So 2 times 18 amps =18 amps and not 36.
     
    Last edited: Aug 24, 2013
  8. 3dPlayer

    3dPlayer Banned

    Messages:
    1,820
    Likes Received:
    0
    GPU:
    Have
    After reading what you just said and knowing that the psu is 5 yrs old i wouldn't trust a 400$ card on it.
     
  9. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
    Last edited: Aug 24, 2013
  10. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,135
    Likes Received:
    0
    GPU:
    2x 980Ti Gaming 1430/7296
    you have 720 watts on the 12v rail. 720/12=60 amps more than enough for 1 card. 1 card on an old psu like you have is more than enough. I do not know how to explain this any better.
     

  11. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
  12. JJayzX

    JJayzX Master Guru

    Messages:
    434
    Likes Received:
    1
    GPU:
    Evga GTX 970 SSC
    Should also know the internet isn't always right or you misunderstood.
     
  13. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
    I think i understand now, i can even plug in a GTX 780.

    Or 2 GTX 770, 60 Amps-cpu stil leavs me 54 amps for 2 cards.

    Every rail has 216watt so with 2 rails i get 2*216=432watts but the card wil use less.

    correct me if i am wrong

    Thanks for the help.
     
  14. alanm

    alanm Ancient Guru

    Messages:
    7,226
    Likes Received:
    37
    GPU:
    1070 AMP!
    The card will definitely use less due to the connectors on the GPU. A 6-pin pcie connector draws max 75 watts and an 8-pin draws 150w. And of course the card draws another 75w from the pcie slot. Most 770s are 1x6-pin + 1x8-pin (mine is 2 x 8-pin). Your PSU should easily handle it.
     
  15. BadDriver

    BadDriver Master Guru

    Messages:
    271
    Likes Received:
    0
    GPU:
    ASUS ROG STRIX-GTX1070-8G
    Thanks.

    I will order 1 tomorrow.
     

  16. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,135
    Likes Received:
    0
    GPU:
    2x 980Ti Gaming 1430/7296
  17. SplashDown

    SplashDown Master Guru

    Messages:
    402
    Likes Received:
    0
    GPU:
    EVGA 980ti Classy@1500
  18. thatguy91

    thatguy91 Ancient Guru

    Messages:
    6,522
    Likes Received:
    33
    GPU:
    XFX RX 480 RS 4 GB
    Has your PSU got 6+2 pin PCI-E connectors or just 6 pin PCI-E connectors?
     
  19. Loophole35

    Loophole35 Ancient Guru

    Messages:
    8,669
    Likes Received:
    142
    GPU:
    EVGA 1080ti SC
  20. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,135
    Likes Received:
    0
    GPU:
    2x 980Ti Gaming 1430/7296
    Was I coming on too strong?
     

Share This Page