[SOLVED] Is 400w enough for my setup?

Sep 15, 2019
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Hey! I am planning to upgrade i5-9400f GTX 1060 6gb to a i7-8700k RTX 2070 and was wondering if 400w would be enough. I currently use 400w for the i5-9400f GTX 1060 6gb. The wattage calculator said that I'd need 484 but I have seen similar posts saying that it massively overestimates. Help would be appreciated.

Specs are:
Prime H310M-K RD2.0
i5-9400F
Intel Stock CPU Cooler
MSI GTX 1060 6GB
16GB RAM
x64 Bit
 

PC Tailor

Distinguished
Herald
If it is a pre-built, then high likelihood it is bad quality too, so even less likely to recommend using it! Is it a custom prebuilt you configured? If it is an OEM prebuilt system you may just have to verify they haven't used an proprietary components.

As for good PSUs that would be good enough for an RTX 2070 - I've done these based on current prices on pcpartpicker for USD.

Most budget friendly but still good:
Power Supply:
Corsair CX (2017) 550 W 80+ Bronze Certified ATX Power Supply ($64.99 @ Amazon)
Total: $64.99 - 5 YEAR WARRANTY

Power Supply: Corsair CX (2017) 650 W 80+ Bronze Certified ATX Power Supply ($76.88 @ OutletPC)
Total: $76.88 - 5 YEAR WARRANTY

Power Supply: Cooler Master MWE Gold 550 W 80+ Gold Certified ATX Power Supply ($76.99 @ SuperBiiz)
Total: $76.99 - 5 YEAR WARRANTY

More recommended PSUs - again based on current prices:

Power Supply:
SeaSonic FOCUS Gold 550 W 80+ Gold Certified Semi-modular ATX Power Supply ($84.99 @ B&H)
Total: $84.99 - 7 YEAR WARRANTY

Power Supply: Corsair RM (2019) 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($89.99 @ Newegg)
Total: $89.99 - 10 YEAR WARRANTY (if new)

Power Supply: SeaSonic FOCUS Plus Gold 550 W 80+ Gold Certified Fully Modular ATX Power Supply ($90.99 @ Amazon)
Total: $90.99 - 10 YEAR WARRANTY
 

PC Tailor

Distinguished
Herald
Welcome to the forums my friend!

The wattage calculators are typically pretty useless, as there is no real verification behind the numbers it generates. Having said that, I absolutely would not run an RTX 2070 on a 400W.

Also remember the make and model is VERY important, the whole 400W is not what supplies your GPU, only the 12V rail, and a poor quality PSU is always a bad choice regardless as to the wattage. What exact PSU make and model is it you currently have and what would your budget be for getting a new one?

Just see point 1 here: https://forums.tomshardware.com/threads/top-not-as-obvious-mistakes-made-when-selecting-parts-for-a-custom-pc.3510178/
 
Sep 15, 2019
3
1
15
0
Welcome to the forums my friend!

The wattage calculators are typically pretty useless, as there is no real verification behind the numbers it generates. Having said that, I absolutely would not run an RTX 2070 on a 400W.

Also remember the make and model is VERY important, the whole 400W is not what supplies your GPU, only the 12V rail, and a poor quality PSU is always a bad choice regardless as to the wattage. What exact PSU make and model is it you currently have and what would your budget be for getting a new one?

Just see point 1 here: https://forums.tomshardware.com/threads/top-not-as-obvious-mistakes-made-when-selecting-parts-for-a-custom-pc.3510178/
Thank you so much! :D
Unfortunately, I do not really know my PSU as it is installed and it was prebuilt. On the website it says '400W 80 Plus Rated Power Supply'. Other than that I would have to take it apart which would be rather annoying. If like you said I shouldn't run an RTX 2070 on a 400W. What are some good PSU's with good Wattage I would be able to use to run them?
 
Sep 15, 2019
3
1
15
0
If it is a pre-built, then high likelihood it is bad quality too, so even less likely to recommend using it! Is it a custom prebuilt you configured? If it is an OEM prebuilt system you may just have to verify they haven't used an proprietary components.

As for good PSUs that would be good enough for an RTX 2070 - I've done these based on current prices on pcpartpicker for USD.

Most budget friendly but still good:
Power Supply:
Corsair CX (2017) 550 W 80+ Bronze Certified ATX Power Supply ($64.99 @ Amazon)
Total: $64.99 - 5 YEAR WARRANTY

Power Supply: Corsair CX (2017) 650 W 80+ Bronze Certified ATX Power Supply ($76.88 @ OutletPC)
Total: $76.88 - 5 YEAR WARRANTY

Power Supply: Cooler Master MWE Gold 550 W 80+ Gold Certified ATX Power Supply ($76.99 @ SuperBiiz)
Total: $76.99 - 5 YEAR WARRANTY

More recommended PSUs - again based on current prices:

Power Supply:
SeaSonic FOCUS Gold 550 W 80+ Gold Certified Semi-modular ATX Power Supply ($84.99 @ B&H)
Total: $84.99 - 7 YEAR WARRANTY

Power Supply: Corsair RM (2019) 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($89.99 @ Newegg)
Total: $89.99 - 10 YEAR WARRANTY (if new)

Power Supply: SeaSonic FOCUS Plus Gold 550 W 80+ Gold Certified Fully Modular ATX Power Supply ($90.99 @ Amazon)
Total: $90.99 - 10 YEAR WARRANTY
So I am thinking about getting this https://pcpartpicker.com/product/3F2rxr/corsair-cx-2017-550w-80-bronze-certified-atx-power-supply-cp-9020122-na or this then https://pcpartpicker.com/product/3F2rxr/corsair-cx-2017-550w-80-bronze-certified-atx-power-supply-cp-9020122-na

Thank you for helping me out! :D
 
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