Are we talking system shutdowns and reduced performance or fire and tears ?
Reason being my gpu come last week naturally I installed it right away, since then I've give it a fair run out and realised I forgot to upgrade my psu.
Also I've seen some people say the gpu will never pull over 450w and 500w is plenty, but others say get a 750w asap !?!?
This is my gear btw http://uk.pcpartpicker.com/p/DNBWqs.
What should I do ? Thank you :D
http://outervision.com/power-supply-calculator
i use that for all my power supply calculations. it shows your just a little over the 450 marker. maybe not jump ship to a 750 immediately, but if you catch one on firesale dont be afraid to snag it
cheers man, just to clarify.
with my 500w there's no chance I'm gonna burn my house down right ?
Fairly simple... AMD FX chips with overclock can take a lot, of power, like 300+ watt. If the gpu alone is pulling 200, the manufacturer sais 600 minimum, so you will have extra for hard drives, fans, other stuff...
Standard i5/i7 don't really pull more than 150, all other stuff in the case usually pulls around 50-60, and if the card is something like R9 390X with 300W needs, here we go... 500 to cover the peak needs. If your card is something like 960, that uses around 120W max, then 500 will be enough.
Idk man i had a 650 watt rosewill powering an i7 4790k, 2 gtx 780s sli 4 sticks of ram and 3 hard drives. Oh yes and 7 fans. Everyone said i was crazy but it worked fine. Now i have an 850 watt and the thing at stock clocks runs exactly the same. So give it a go i say.
well we cant guarantee anything. i mean i have an 850W RM series that never spins the fan up (meaning the load is always under 50%) and it could burn my house down if something sparks inside. but you wont be over burdening your psu
My 430W Seasonic could handle (according to the reviews) near 530W continues load. However, i dont think im even close to 430W. 760K @4,4GHz, Toxic 270X that requires 550W according to Sapphire, SSD, HDD, 7 fans and its all fine. However, Witcher 3 was the only game that fully pushed my GPU to 100% load, and it ran fine...
Basically, when not in heavy load, the GPUs rarely use 100W not to mention more, the CPU barely draws 110W (according to what i can gather from here and there), so my usual Vanilla Skyrim, Hand of Fate and games, released few years ago are not even pushing 350 consumption. Granted, 390 will eat 250watt no problem under load, but still, 100CPU, 300 GPU, 100 everything else, 500 is enough, 550 to be sure. This is not 9590 we are talking about here...
The oversize PSU theory (apart from having enough or spare capacity for future upgrades) is to run the PC at high load around the most efficient power load on the PSU. Which on the modern 80plus rated PSUs could really be anywhere from 50%-80%. Not forgetting to have the PC idling at a reasonable efficiency level as it'll probably spent a lot if not most of the time around there. Though the lower efficient level around idle is not so costly as of course as it's consuming less power.
Ironically I had it about perfect on my setup with 2 x GTX 970 in SLI (550W max load) with an 850W PSU and then switched to a single GTX 980 Ti (350W max load) which now sits a bit low in the efficiency range at idle so a 650W 80plus PSU would probably be better. Over a year though it not actually be that much with the amount I use he PC.
Forgot to add that any decent PSU should immediately shut down the PC if there's any abnormal power load and also give you an audible or red light indication etc.
I've had it happen on an older branded PSU when it became unreliable after 8 years of heavy gaming :)