[SOLVED] Do i need to upgrade my PSU?

MPDota

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So i went to the http://www.coolermaster.com/power-supply-calculator/ and entered all my pc specs and the result i got is:

Load Wattage: 598W

Recommended PSU Wattage: 648W

My current PSU is Thermaltake Smart SE 630W. Now i'm not sure if i need to upgrade or not, since my PSU specs are:

Max. Output Capacity: 630W So is this continuous power or not?

Peak Output Capacity: 730W Is this the absolute max wattage PSU can provide in the time of need?

I'm upgrading my GPU from GTX 1080 to 1080Ti, in the quick summary i have:

8600K @ 4.9GHz, aprox. 1.3V
1SSD, 2xHDD
4x4GB of DDR4 3000Mhz memory
1080ti ZOTAC AMP EXTREME (2x8pin)
Z370 mobo Asus STRIX
NZXT Kraken X42 AIO cpu cooler
3x Case fans-120MM

Further research that i did suggests that GPU itself draws around 320W.

I'm kinda short of money atm since i upgraded, so is PSU upgrade necessary or am i as its often the case with PSUs, "just fine"?

Of course, just to add, i'm talking here that wanna be absolutely 100% sure about my PSU, i don't even wanna think if it's powerful enough or not, i don't wanna be on the egde.

Few more details that might help: I'm using 1440p 144Hz monitor so the gpu will be utlized 100%. My current PSU is about 3years old.
Thanks.
 
peak output is likely the max wattage (current @ 12V) you can supply before you trip overcurrent protection.
in theory, your total system consumption during game session will be less than those calculated numbers.

if you are overclocking such a high end system I would recommend you to use 750W Gold Rated or higher psu.
for three reasons:

1. your PSU will last longer if your load points is around its 50% load points, rather than their 80% load points. not to mention the extra warranty, many 750W+ gold rated psu offer 7 ~10 years warranty.
2. Performance will be better @ 50% load points, your psu is most efficient @ 50%, and offers really good voltage regulation.
sometimes power hungry cards like the vega64, the total system current draw spike can go up 700w or higher. triggering protection for some very sensitive unit (even good ones like the seasonic focus plus 650w)
2. cable used for PSU @ 650W or less maybe not as good (thinner ). expensive high wattage unit usually uses proper wire gauge for all its 12V rails.

however, I understand money is a concern, here is what I recommend.

do your normal game session/work load for 1 or 2 hr.
open the case and feel both your CPU and GPU 12V wire (be extra careful when you do this). if the wire became soft or uncomfortable to touch (if you want a number I would say roughly 70C or higher) or the isolation became malleable, then you have to change your PSU right way. you can also get a watt meter (I see lots @ amazon for $20) to see your real power consumption, and if the number times 0.85 is around 400ish or lower, then you shouldn't worry about it too much. other wise, its best to replace the psu.
 

MPDota

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@zyh1987, Lol, i always thought of my setup as a midrange, i don't know why are you calling it "high end" :)

Can you guys give me few more recommendations for PSU, should i choose to upgrade? Thanks.

 

MPDota

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Thanks. On that note, what exactly is the "problem" with my current PSU, as you are referring to it to be crap?
I know it's not the best quality, but it ain't the worst either?
 


like I suggest earlier, quality aside, if you can verify your actual workload with a watt meter, and make sure the cable temp are fine. then don't worry about it as much. it's more of a prolonged effect rather than instant fireball.

as for the "high end/mid range" thing.

December steam survey shows that 85% of the CPU under survey is dual and quadcore,
and 90% uses gtx1080 or slower.

if you consider top 10% in GPU and 15% in CPU is midrange, that's totally fine.