Intel i7 4790k + GTX 970 is 600 Watts enough?

[bcyrek]

Hello, i'm going to be getting a Desktop computer from Ironside for Gaming/Graphic Design. I went though it all with an employee and he said it looks like a pretty good build, I trust him, but i'm not sure if he is correct about the wattage I should be getting. Long Story short, I would like to know how much wattage I should get for this build so it runs fine, with just a few extra watts.

Intel Core i7-4790K 4.0GHz (Quad Core)
Asrock B85 [4 DDR3 Memory Slots]
Corsair Vengeance 16GB (2x8GB) DDR3 1600MHz
Nvidia Geforce GTX 970 4GB
1TB 7200 RPM
Corsair Builder Series CX600 600 Watt 80 Plus *

and if it makes any difference, Asetek 510LC High Performance Liquid Cooling

Thanks!

 

[spadam_2000]

You will be fine. 600W is sufficient, however you will not be able to run SLI with it in the future.

 

[Dark Lord of Tech]

Yes that is more than enough power for your specs.

 

[Dark Lord of Tech]

His board can't run dual cards so the CX600 is enough for his setup.

 

[Dark Lord of Tech]

You might have to disable the sleep states in the bios because the CX600 isn't Haswell comnpatible.

When an Intel Core (i3, i5, i7) processor is idle, it goes into a sleep state that requires less power than when the CPU is active. Since the motherboard voltage regulation modules that provide power to the CPU gets their power from the power supply's +12V rail, these sleep states can dramatically reduce the load on the power supply's +12V rail.

According to Intel's presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply's non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU's protection may prevent the PSU from running and will cause the power supply to "latch off". This will require the user to cycle the power on their power supply using the power switch on the back of the unit.

While we are still working with Intel on the details of the testing methodology they use to check PSUs for Haswell compatibility, it is already known that a power supply that uses DC to DC for the non-primary rails (the +3.3V and +5V) will not have an issue with the new low power sleep states. This is because a DC to DC buck converter is used to convert +12V to +3.3V and +5V. This means that no matter what load the CPU puts on the power supply, there will always be a load on the +12V because the +12V is required to provide power to +3.3V and +5V.

Corsair utilizes this DC to DC technology in most of their power supplies. Starting with the CX750 and CX750M and moving all of the way through the GS Series, TX and TX-M Series, the HX Series, both the AX Series Gold and AX Series Platinum, and the new AXi Series. So whatever your budget, if you choose Intel's new Haswell processor and wish to utilize the new, low power C7 sleep state, Corsair has a power supply for you.

http://www.corsair.com/en-us/blog/2013/may/haswell-compatibility-with-corsair-power-supplies

 

[spadam_2000]

His board can't run dual cards so the CX600 is enough for his setup.

True, I overlooked that. Thanks.

 

[bcyrek]

You will be fine. 600W is sufficient, however you will not be able to run SLI with it in the future.

You might have to disable the sleep states in the bios because the CX600 isn't Haswell comnpatible.

When an Intel Core (i3, i5, i7) processor is idle, it goes into a sleep state that requires less power than when the CPU is active. Since the motherboard voltage regulation modules that provide power to the CPU gets their power from the power supply's +12V rail, these sleep states can dramatically reduce the load on the power supply's +12V rail.

According to Intel's presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply's non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU's protection may prevent the PSU from running and will cause the power supply to "latch off". This will require the user to cycle the power on their power supply using the power switch on the back of the unit.

While we are still working with Intel on the details of the testing methodology they use to check PSUs for Haswell compatibility, it is already known that a power supply that uses DC to DC for the non-primary rails (the +3.3V and +5V) will not have an issue with the new low power sleep states. This is because a DC to DC buck converter is used to convert +12V to +3.3V and +5V. This means that no matter what load the CPU puts on the power supply, there will always be a load on the +12V because the +12V is required to provide power to +3.3V and +5V.

Corsair utilizes this DC to DC technology in most of their power supplies. Starting with the CX750 and CX750M and moving all of the way through the GS Series, TX and TX-M Series, the HX Series, both the AX Series Gold and AX Series Platinum, and the new AXi Series. So whatever your budget, if you choose Intel's new Haswell processor and wish to utilize the new, low power C7 sleep state, Corsair has a power supply for you.

http://www.corsair.com/en-us/blog/2013/may/haswell-compatibility-with-corsair-power-supplies

Wow, thanks for that info, so what do you recommend me doing? Should I disable sleep mode (Will this dramatically affect performance?) Go to a standard 600 W power supply?

 

[Dark Lord of Tech]

Personally I would never put a CX series supply in anything but a budget \ office build , they use weak capacitors.

 

[Dark Lord of Tech]

Made by SEASONIC.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec TruePower Classic 650W 80+ Gold Certified ATX Power Supply ($49.99 @ Newegg)
Total: $49.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-28 20:21 EST-0500

 

[bcyrek]

Made by SEASONIC.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec TruePower Classic 650W 80+ Gold Certified ATX Power Supply ($49.99 @ Newegg)
Total: $49.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-28 20:21 EST-0500

Corsair Enthusiast Series RM650 650 Watt 80 Plus Gold < what is your opinion on that, I am getting this built by a company so I have a limited amount of options as far as PSUs go

 

[Dark Lord of Tech]

CS , CX , VS , RM = POOR CAPS

 

[Zerk2012]

His board can't run dual cards so the CX600 is enough for his setup.

Ouch for not putting in another recommendation over the Corsair CX.. OK you did scratch my post
Ouch worse this is a Cyberjunk build (cyberpower) (Asetek 510LC High Performance Liquid Cooling)

 

[Zerk2012]

Hello, i'm going to be getting a Desktop computer from Ironside for Gaming/Graphic Design. I went though it all with an employee and he said it looks like a pretty good build, I trust him, but i'm not sure if he is correct about the wattage I should be getting. Long Story short, I would like to know how much wattage I should get for this build so it runs fine, with just a few extra watts.

Intel Core i7-4790K 4.0GHz (Quad Core)
Asrock B85 [4 DDR3 Memory Slots]
Corsair Vengeance 16GB (2x8GB) DDR3 1600MHz
Nvidia Geforce GTX 970 4GB
1TB 7200 RPM
Corsair Builder Series CX600 600 Watt 80 Plus *

and if it makes any difference, Asetek 510LC High Performance Liquid Cooling

Thanks!

If your buying this from Ibuypower / Cyberpower I would highly recommend you call these guys it will cost a bit more but you will get a good solid PC.
http://www.pugetsystems.com/

 

[Zeusr7]

Personally I would never put a CX series supply in anything but a budget \ office build , they use weak capacitors.

I have a budget related problem so cx 600 would be ok. i guess(other specs are same)??
and it wont damage or cause any problem regarding power districution?