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Running a EVGA GTX 770 on a EVGA 500B power supply with 40amps on a low profile system

A family member is buying me an EVGA 500B power supply for the holidays because originally i was going to buy a EVGA 760, EVGA informed me that I'd be able to run that card without any issues however now I have an extra $70 to spend on a graphics card, the EVGA 770 is in my price range. Minimum requirements in an average* system are 600w 42amps on the 12v rail, my thinking is since my system runs a little lower on power according to Pcpartpicker and eXtreme that i'd be able to somehow get around this 2amp. Asking for a diffrent power supply is out of the question, I'd feel horrible inside.

http://www.evga.com/Products/Product.aspx?pn=100-B1-0500-KR - power supply

Is there anything I can do? remove a RAM stick, set maximum processor state to 85% , anything. Im using about 200w without a graphics card
7 answers Last reply Best Answer
More about running evga gtx 770 evga 500b power supply 40amps low profile system
  1. It will run it since system load is barely going to reach 400watts, Measured total system power consumption http://anandtech.com/show/7392/the-geforce-gtx-770-roundup-evga-gigabyte-and-msi-compared/6
  2. I wouldnt do it, you'll run into all sorts of issues with an underpowered system, i wouldnt even consider it personally. You can ruin about any part of your rig if u try. Only parts you have that draw many watts are cpu/gpu/mobo/hd when spinning full tilt. Memory and other items dont use enough to bother
  3. Pretty much just CPU and motherboard that use a lot of power, HDD use minimal amount.
  4. Best answer
    According to PC partpicker im only using ~200w, the 770 will use ~240w at peak during a benchmark and I only have 425w continuous. I can understand not reaching 400w during a simple game like WoW or league of legends , when I get the 770 it will remove the bottlenecks and my CPU will only run at like 40-50% . Im just wondering what would cause it to go peak and if theres anyhting i can do to prevent it

    http://prntscr.com/29jt8y
  5. anton3 said:
    According to PC partpicker im only using ~200w, the 770 will use ~240w at peak during a benchmark and I only have 425w continuous. I can understand not reaching 400w during a simple game like WoW or league of legends , when I get the 770 it will remove the bottlenecks and my CPU will only run at like 40-50% . Im just wondering what would cause it to go peak and if theres anyhting i can do to prevent it


    Look at the Furmark load in the link I posted it brings the GPU to absolute MAX!
  6. Updated with screenshot, i dont EVER recall CPU-Z showing my CPU running at 125w I dont even think my motherboard supports over 110
    http://prntscr.com/29ju2l
  7. It is a 95watt tdp CPU!
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