GTX 660 Ti on a 380w Power Supply?

Discussion in 'Videocards - NVIDIA GeForce' started by NvidiaFreak, Mar 10, 2013.

  1. NvidiaFreak

    NvidiaFreak Ancient Guru

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    I got back to PC gaming thanks to AMD A10-5800K, since i'm not digging Ati drivers & i know how Nvidia drivers are, i want to get a GTX 660 Ti since it's right for this little PC. my question is can the GTX 660 Ti handle a 380w power supply since i'm low on cash & all i have is to get a GPU & nothing more since i spent it on the PC & HMZ T2 : ( but it was worth it.
     
  2. alanm

    alanm Ancient Guru

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    It would have to be a very good quality PSU to handle both the 660ti and the A10-5800k. Although the 660ti has a relatively low power draw, coupled with that CPU @ 4.2ghz it would surely stress the PSU. If its some obscure generic, its power output will likely be over-rated and might not even do 300w. What brand is it and what are the 12v rail amps (specs should be on label).
     
  3. Pete J

    Pete J Master Guru

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    If you haven't overclocked the processor then it should use ~150W. The 660 ti (according to Nvidia) uses 150W, so in theory your PSU should handle it unless you have loads of HDDs and other peripherals attached. Nvidia recommend a 450W supply minimum though and as alanm suggests, if your PSU is a cheap no brand affair it's likely not up to the task.
     
  4. NvidiaFreak

    NvidiaFreak Ancient Guru

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    No I have not overclock the CPU, it runs at stock 3.80ghz but up to 4.2ghz viva Turbo Core when it needed. i'm planning to turn off the APU which the CPU will use less power. I only have a 160gb HDD & a DVD Rom which I rare use.

    The PSU is a Antec EarthWatts Green EA-380D Green 380W Continuous power ATX12V v2.3 / EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply @ Output+3.3V@20A, +5V@20A, +12V1@17A, +12V2@15A, -12V@0.8A, +5VSB@2.5A
     
    Last edited: Mar 11, 2013

  5. sykozis

    sykozis Ancient Guru

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    Personally, I wouldn't risk it.... Would be better off getting a bigger/better power supply...
     
  6. alanm

    alanm Ancient Guru

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    The power draw of the A5800 is around 135w with IGP at load. If you disable the IGP, it will be much less, around 85w according to this review:

    http://www.techpowerup.com/reviews/AMD/FM2_APU_Review/5.html

    So 85 + 150w (660ti) + 20-30w fans, drives etc = around 265w full load.

    If you dont OC, I think its doable with that PSU, which isnt a bad unit. And being an Antec, it should have decent protection circuitry, so worse that could happen is your PC shuts down. I would still go for a higher power unit though.

    Heres a review of the PSU:

    http://www.tomshardware.com/reviews/power-supply-psu-80-plus,2746-12.html

    Take note of the high temps it puts out due to small fan.
     
  7. Kurg

    Kurg Active Member

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    I've a PSU NOX 500w my Quad core 6600 it's overclocked to 3.20 mhz and i've problems with very intensive gpu games, i recommend you go for a 600w psu to avoid future problems
     
  8. alanm

    alanm Ancient Guru

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    The claimed wattage of a PSU, especially that of an unknown brand, means nothing. It may be labelled 500w but may be no better off than a 300 watter. I would say ignore any unknown brand that is not certified or reviewed.
     
  9. warlord

    warlord Ancient Guru

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    380w at year 2013, really? it's not a good option it will give you a problem anytime soon. it's 660ti it's not 650.
     
  10. alanm

    alanm Ancient Guru

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  11. Pill Monster

    Pill Monster Banned

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    It should run fine until it blows up, then just buy a new one as above....:)
     
  12. eternitykh

    eternitykh Master Guru

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    a quality 350w unit will run that system just fine. it just has zero headroom, make sure you do not overclock and install much accessories. and keep in mind the tdp ratings are when they are at 100% load, there is no way (ok maybe super rare would be a better word) you will have your entire system at 100% at any given time, usually partial load on some of the components.
     
  13. Pete J

    Pete J Master Guru

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    I'm with alanm on this. Your PSU SHOULD be okay but if you come into a bit of money a decent 500W supply should be at the top of your shopping list.

    The 660 Ti is a brilliant card by the way, with a lot of overclocking headroom. Get that 500W PSU and start tinkering!
     
  14. NvidiaFreak

    NvidiaFreak Ancient Guru

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    LOL.

    Next time I will get a higher PSU since at first I was not planning to buy a GPU since the APU has a GPU already so 380w was finet for me but after reading that DX 11.1 is coming out soon I have to wait for the 700 series for DX 11.1.
     
  15. tsunami231

    tsunami231 Ancient Guru

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    PSU ones of the few parts you can not go cheap on. im with alot of other people 380w in this day in age?? I would never try it. you would be just asking for problems when the psu ages and losses power.
     

  16. Pill Monster

    Pill Monster Banned

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    I once blew up a cheapo 450W PSU with an 8800GTX. It died in a shower of sparks lol

    380W should be enough for your HTPC rig though....
     
  17. alanm

    alanm Ancient Guru

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    I think people tend to overlook that an important consideration in PSUs is that they are from a reputable brand. Virtually all decent brands have adequate protection circuitry where the worst that can happen is the PC just shuts down if overloaded. I would trust the 380w Antec over a 700w generic in my PC any day of the week. Generics blow up, decent PSUs that get overloaded (regardless of how demanding the hardware they are running) simply shut down.
     

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