Is it good to use 750w psu to my pc?

[respeccter]

PC setup

GPU: ZOTAC GeForce RTX 2060 SUPER AMP EXTREME

Motherboard: ASUS ROG STRIX B450-E GAMING, Socket-AM4

Screen: ASUS 24" VG248QE

CPU: AMD Ryzen 7 3700X Prosessor

CPU-Cooler: Cooler Master MasterLiquid 240

RAM: Corsair Vengeance LPX DDR4 3200Mhz 16GB

SSD: Samsung 860 EVO 1TB SSD

M.2 SSD: Samsung 970 EVO Plus 500GB SSD

 

Wondering if (Corsair TX750M, 750W PSU) can be used here or if it is to much wattage.

 

 

[Fasauceome]

2 minutes ago, respeccter said:

can be used here or if it is to much wattage.

If you have a PSU that has "too much wattage" you won't run into a problem, it'll work as normal. The only issue is that you're overspending as a 550 watt model would produce the same results for a lower cost. A TX550M would be a good choice.

[seon123]

You're better off getting a lower wattage PSU, and spending the money you save on the other parts. E.g. replacing the motherboard with a decent one. Depending on what you do with your PC, you might be better off dropping the NVMe drive. And change that cooler to a decent air cooler, unless the goal is 100% aesthetics, 0% noise and performance. 

[MadmanRB]

750W is a bit overkill for this setup

550W should be plenty.

Granted its nice to have some headroom but modern PC parts are very power efficient.

Now if you want SLI then 750W makes sense but nothing here says you need that kind of PSU

[seon123]

2 minutes ago, MadmanRB said:

Now if you want SLI then 750W makes sense but nothing here says you need that kind of PSU

SLI with a card that does not support SLI...?

[MadmanRB]

Just now, seon123 said:

SLI with a card that does not support SLI...?

I mean if they want to have a SLI/NVlink setup in the future with another card

[seon123]

1 minute ago, MadmanRB said:

I mean if they want to have a SLI/NVlink setup in the future with another card

If you're planning on upgrading to a super high end system, surely it would be within the budget to get a high end PSU? Same can be said about the motherboard. Why not go X299 and get a 7640X?

Selecting components based on a hypothetical, unrealistic upgrade is just a bit silly, imo. 

[MadmanRB]

Well if you could score a 650 watt power supply on sale that's not a bad deal if it turns out to be a very good power supply. I've actually seen some good quality power supplies for reasonable prices

[Tadej Danev]

overkill

[Tan3l6]

Well, fan noise curve of Corsair TX750M is pretty good - under 13db up to 300w which is good.

Lower power PSUs sometimes make more noise and fanless lower power PSUs cost much more.

In supplying power, Corsair TX750M is overkill.

 

 

though i don't know if i'm reading this right - https://www.corsair.com/corsairmedia/sys_master/productcontent/TXM_Manual.pdf

TX650M is even more quiet?

[seon123]

2 hours ago, Tan3l6 said:

Well, fan noise curve of Corsair TX750M is pretty good - under 13db up to 300w which is good.

For numbers that aren't BS, check Cybenetics. 

https://www.cybenetics.com/index.php?option=database&manfID=28&volts=1

2 hours ago, Tan3l6 said:

Lower power PSUs sometimes make more noise and fanless lower power PSUs cost much more.

And sometimes more expensive, higher end, and higher wattage PSUs can make a lot more noise. Manufacturer provided dB graphs are useless. The testing methodology matters a ton, and dB is not a measure of sound level. It compares the relative sound power level between two sources. You can select the source you compare against to be whatever you want. Unless they specify dBA and not dB, and provide the exact testing methodology, it's a waste of time to look at. 

E.g. the BitFenix Formula 450W is generally one of the less expensive good PSUs. At 315W it spins it's fan at 612 RPM, and 12,7dBA. The EVGA G3 1000W is a lot more expensive. At just 60W (yes, 60W, not 600W) it spins its fan at 1520 RPM, and 35,9dBA. This is with Cybenetics' testing methodology, which you can find on their site.

Do you see the problem with your claims?

[Tan3l6]

15 hours ago, seon123 said:

...

Do you see the problem with your claims?

 

Sure, I was generalizing. My mistake.

And good to know about https://www.cybenetics.com