Ok to run a Vapor X 290 on a 500w system?

foucault · Apr 27, 2014

Hi, I want to run a i7 4770 (non k) with a Vapor X 290 on a 500w gold PSU. Will this work?

PC Part Picker says the estimated wattage would be around 440, but I see a lot of people say you need to leave 100w worth of headroom. I don't plan on overclocking, so other than eventually adding new ram and another hard drive, this would be it.

Update: The PSU is a Silverstone ST50F-ESG. Do you think that would work? I'm very new to this and appreciate the help.

Suztera · Apr 27, 2014

What 500w gold power supply? Brand? Model?
It should be fine depending on the psu quality. It will actually use maybe 350 W

azzazel_99 · Apr 27, 2014

Whats the rest of your system also?

Suztera · Apr 27, 2014

500W is kinda cutting it close if you were to pull the max watts from the gpu. Don't try to overclock the card just incase. I would recommend at least 650W though. It has a good enough headroom.

foucault · Apr 27, 2014

Suztera :

azzazel_99 :

The system is:

Intel Core i7-4770 3.4GHz Quad-Core Processor
MSI Z87M-G43 Micro ATX LGA1150 Motherboard
G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory
Samsung 840 EVO 250GB 2.5" Solid State Disk
Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
Sapphire Radeon R9 290 4GB Vapor-X Video Card
Silverstone SG10B MicroATX Mini Tower Case
Silverstone 500W 80+ Gold Certified ATX Power Supply

Suztera: How important is it to leave headroom? Is that for power spikes or something?

Suztera · Apr 27, 2014

foucault :

Leaving headroom is good for when you start to add more components to your build, overclocking and just incase your system suddenly pulls in the max watts. 550W is probably fine as well. I prefer 650 W because it will put less strain on the power supply pulling the watts at a lower load and it will be quieter.

azzazel_99 · Apr 27, 2014

yea i would say anything from 650 to 750 even just to have the headroom.

foucault · Apr 27, 2014

Thanks guys, this is very helpful information. It's good to know what's feasible and what's safe. Last thing I want is to blow my system!

I got a good deal on the PSU, so I might just try it as a stop gap measure, and then invest in a higher end model when one goes on sale. Or I might do a mini ITX motherboard, which would lower the total power to 400w and should leave close to 100w headroom. I appreciate your help.

Suztera · Apr 27, 2014

motherboard size doesn't really affect power draw. Just keep the motherboard.

foucault · Apr 27, 2014

Wait, really? When I select it on Pc Part Picker it lowers it from 440w to 400w. It did sound a bit too good to be true.

Suztera · Apr 27, 2014

foucault :

It does lower slightly but its not a good idea to spend money on a new motherboard rather than a new power supply.

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