Is my PSU enough for my PC? (UPDATE: can I water cool and overclock GPU with this PSU??

geezuss · Jan 9, 2018

I am trying to be efficient as possible. I think I have settled on an EVGA 650W G2 power supply...
I have read that keeping close to the higher end of maximum at full power draw is most energy efficient.

***EDIT: I just purchased EKWB a240g kit which includes a gpu block along with cpu block and 240mm radiator. I wasn’t expecting to use liquid cooling but for $240 it was hard to pass up. I am wondering if I want to overclock my Ti will I maybe go too near to 650 watts to be safe?

GTX 1080 Ti Founders Edition (EVGA)
i7 6700
16GB 2133 MHz ram (8GBx2)
500GB ssd + 250GB ssd + 2TB hdd + 1TB hdd
2x120mm case fans
Motherboard is generic American Megatrends with Bluetooth and WiFi 6xUSB 3.0, 2xUSB 2.0
(I am considering buying a new mobo also. Although I don’t have any idea which one is best)
1— 4xUSB 3.0 Hub
4xUSB 3.0 devices
2xUSB 2.0 devices

jankerson · Jan 9, 2018

Yes that's fine.

Rexper · Jan 9, 2018

Will this safely be enough power?

Yes, easily. The PSU offers all necessary protections and even a 550w unit would supply more than enough power.

I have read that keeping close to the higher end of maximum at full power draw is most energy efficient.

Not really. PSUS are generally at their peak efficiency between 40% and 60%. Though you can't compare apples to oranges. A PSU at 20% load can be more efficient than a different PSU at 50% load, because their internals are different.

If you're looking for efficiency, I suggest this database as a guide: https://www.cybenetics.com/index.php?option=database

chris4super_dawg · Jan 9, 2018

geezuss :

I am trying to be efficient as possible. I think I have settled on an EVGA 650W G2 power supply...
I have read that keeping close to the higher end of maximum at full power draw is most energy efficient.

GTX 1080 ti FE (EVGA)
i7 6700 (with stock 120mm cooler)
16GB 2133 MHz ram (8GBx2)
500GB ssd + 250GB ssd + 2TB hdd
2x80mm case fans
Motherboard is generic American Megatrends with Bluetooth and WiFi 6xUSB 3.0, 2xUSB 2.0

A couple MPC’s and extra peripherals will most of the time be connected also.

Will this safely be enough power? [/

That’s more than enough I’m rocking the 450w with 1050 it 16 gb ram with about 4 case fans and led lights plus more and I don’t seem to have a problem u should be fine

YoAndy · Jan 9, 2018

geezuss :

Power supply efficiency is defined as the amount of power actually provided to the internal components, divided by the amount of power drawn at the wall. A 50% efficient PSU that’s tasked with providing 50W of power to a system will draw 100W from the grid. The extra 50W is lost as heat. A 90% efficient PSU would draw 56W in the same circumstances.

Even generic PSUs are far more than 50% efficient; in fact, 75-77% is fairly common. This means the amount of money you save from upgrading to a high-efficiency PSU is minimal if you don’t actually draw much power to start with. Electricity rates are charged by the kWh — if your system only uses 80W at idle, and idles 20 hours a day, you won’t see much benefit from an 80 Plus Platinum PSU as opposed to a regular 80 Plus.

http://www.tomshardware.com/reviews/psu-buying-guide,2916-5.html

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Is my PSU enough for my PC? (UPDATE: can I water cool and overclock GPU with this PSU??

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