What size power supply will I need for this build?

DiamondMinah · Apr 16, 2014

Hi, I need to know how many Watts my system will use at full load.

Specs:

CPU: i5 4670K
CPU-Cooler: Corsair H105
MOBO: ASRock Fatal1ty Z87 Killer
RAM: Corsair Dominator Platinum 8GB DDR3 2133 MHZ
GPU: ASUS GeForce GTX 760 2GB x2
PSU:?????
CASE:CORSAIR 650D

Storage:

Kingston HyperX 3K 120GB SSD
Seagate Barracuda 2TB 7200 RPM x2

MONITORS:

ASUS VX238H x2

+2 or 3 USB devices

So I would like to know what brand/how many W I will need for that system

thanks

manu354 · Apr 16, 2014

I would take a 750W or more. http://www.amazon.com/dp/B007F9X9OI/?tag=bestpsus-20 That is a good 1000W one. You dont really need that many W though.

manu354 · Apr 16, 2014

I have a i5 4670k and a gtx780 with a cooler master 750W If that helps you understand.

DiamondMinah · Apr 16, 2014

Since it fits my budget, would a corsair AX860i pull enough watts?

manu354 · Apr 16, 2014

Yea that would be a perfect PSU! Get that you it will run fine.

DiamondMinah · Apr 16, 2014

manu354 :

Thanks

photonboy · Apr 17, 2014

Despite your budget, I do think that Power Supply is a little overpriced. Others may disagree.

For example, the Corsair HX850 is $150:
http://pcpartpicker.com/part/corsair-power-supply-hx850

For future reference, the quick rule of thumb is how many 6/8-pin connectors the power supply has.

After that, there are two other choices for an OPTIMAL power supply:

1) Is Total Power while gaming below 60%? (to minimize PSU fan noise)

2) Is it a QUALITY build.

3) Is it Full, Semi-modular, or Non-modular? (what wires are permanently attached. I prefer Semi-modular since we always need the main wires attached anyway)

Other (assuming you haven't bought anything yet):
- I noticed you had a RAID0 drive setup going on. I've had lots of issues with RAID0 in the past so I don't use it anymore. I'm curious how you intend to use it, and can discuss if interested by PM.

- I recommend a single GTX780 instead. The 2xGTX760 will score higher in benchmarks but there are other factors such as potential SLI stutter, and near-future games requiring more than 2GB of VRAM at this performance level (2x2GB is still 2GB as it's cloned).

- I prefer a solid Noctua air cooler (PWM fan model). Mine is completely silent in normal operation and barely audible when converting video. It's more silent than any liquid cooler since they also have a PUMP. I have an i7-3770K @ 4.2GHz.

- I couldn't tell if you had 1x8GB or 2x4GB. I recommend two sticks (2x4GB).

DiamondMinah · Apr 17, 2014

photonboy :

Despite your budget, I do think that Power Supply is a little overpriced. Others may disagree.

For example, the Corsair HX850 is $150:
http://pcpartpicker.com/part/corsair-power-supply-hx850

For future reference, the quick rule of thumb is how many 6/8-pin connectors the power supply has.

After that, there are two other choices for an OPTIMAL power supply:

1) Is Total Power while gaming below 60%? (to minimize PSU fan noise)

2) Is it a QUALITY build.

3) Is it Full, Semi-modular, or Non-modular? (what wires are permanently attached. I prefer Semi-modular since we always need the main wires attached anyway)

Other (assuming you haven't bought anything yet):
- I noticed you had a RAID0 drive setup going on. I've had lots of issues with RAID0 in the past so I don't use it anymore. I'm curious how you intend to use it, and can discuss if interested by PM.

- I recommend a single GTX780 instead. The 2xGTX760 will score higher in benchmarks but there are other factors such as potential SLI stutter, and near-future games requiring more than 2GB of VRAM at this performance level (2x2GB is still 2GB as it's cloned).

- I prefer a solid Noctua air cooler (PWM fan model). Mine is completely silent in normal operation and barely audible when converting video. It's more silent than any liquid cooler since they also have a PUMP. I have an i7-3770K @ 4.2GHz.

- I couldn't tell if you had 1x8GB or 2x4GB. I recommend two sticks (2x4GB).

Thanks for the reply, I am actually running a RAID1 setup, for a good backup, and I am running a 2x4 gb ram kit.

I will think about the single 780, what brand should I get?

Also, would it really be that bad to get the 2x 760's?

Thanks

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