Computer Build Help

[Digital_Damage]

You think it's fine as-is for the system as-is?

Would opt for something significantly more stable.

7700k max power draw is 195w
1080 Max power draw is 173w
Optical Disk can reach 35w

so that give you 405w, just for those components not including pump, fans etc...

I doubt that power supply it 80+ so you are right on the edge, you will not be able to add more drives or a 2nd 1080.

I would pick up a CX750, can get one for $70.



the 500w rating is a max

[kwelz]

Would opt for something significantly more stable.

7700k max power draw is 195w
1080 Max power draw is 173w
Optical Disk can reach 35w

so that give you 405w, just for those components not including pump, fans etc...

I doubt that power supply it 80+ so you are right on the edge, you will not be able to add more drives or a 2nd 1080.

I would pick up a CX750, can get one for $70.



the 500w rating is a max

Whoa there! Where are you getting these numbers at? If a 7700K is drawing 195W it would be on fire. Heck my 6850K OCed to 4.4 doesn't even come close to that.
Stock for the 7700k is 91w and no way will Overclocking double that.

1080 are rated at 180Watt and OCed can get closer to 190-195.




That being said I would recommend a better PSU.

A EVGA Supernova 650 would be perfect for this and not break the bank. They are usually on sale for around 80.

https://www.amazon.com/dp/B00K85X2AW/?tag=pcpapi-20

[Digital_Damage]

Whoa there! Where are you getting these numbers at? If a 7700K is drawing 195W it would be on fire. Heck my 6850K OCed to 4.4 doesn't even come close to that.
Stock for the 7700k is 91w and no way will Overclocking double that.

1080 are rated at 180Watt and OCed can get closer to 190-195.




That being said I would recommend a better PSU.

A EVGA Supernova 650 would be perfect for this and not break the bank. They are usually on sale for around 80.

https://www.amazon.com/dp/B00K85X2AW/?tag=pcpapi-20

with the 7700k, that power draw is the established max for select bin and stable at 4.9, with 16gb ram.

The 6850k is 236w stock clock to the wall, with 16gb ram.

I think you are talking about nominal draw for CPU.

1080 is actually one of those situations where they over estimate draw and round up(actual being 173 rounding up to 180).

in any situation 500w max is going to be problematic for him.

[kwelz]

I still don't see where you are getting those numbers. Even if we are talking about total system draw (minus GPU), the only way to get those numbers is if you are running something like Prime 95. I don't have any time right now but tonight I will throw a watt meter on my systems and see what I am pulling from the wall.

I do know however that my old system which was a 5820K and SLIed 980Tis with a custom loop was only pulling about 750 from the wall.

[sadmin]

500w may be sufficient under normal conditions but more importantly, and maybe I am old school, but PSU is not something to skimp on. That Cybertron PSU needs to GTFO of there; power draw is hard to discern when we cant even quantify the efficiency rating of that thing. I second Kwelz advice on the EVGA....or even the old Corsair CXM line would serve you much better.

https://www.amazon.com/CORSAIR-CX750...HG4H90GJ2XM451

[bp7178]

The 195w is a 7700k at 5.1Ghz and is total system consumption measured at the wall running Prime 95 small FFT, 58w idle and is again total system consumption.

https://www.bit-tech.net/hardware/cp...lock-preview/5

Here is a capture from Hardware Monitor showing my PC. I was playing The Division and after ran Intel Burn Test on very high.



HWM.jpg (Click make bigger...)

[kwelz]

I could see that being closer to total system draw.

I did a bit of testing on my main rig. First so we know what we are dealing with.

6850K Overclocked to 4.4Ghz at 1.35 Volts
32Gb Ram
2X 1080s in SLI
6 SSDs
2 HDDs.
2X D5 Pumps for the custom Loop.
11 Noctua Fans.

In other words my system draws a LOT more than the normal PC or even your average gaming PC.





So I ran a few tests. First Firestrike Extreme. A good benchmarking program that runs the system pretty hard.

I got a max of 629 Watts with a Minimum of 540








Next I ran Intel Burn test on Very High while running Unigen Heaven Benchmark on Extreme while set to system Resolution which is 3440x1440

Max was 682 with a minimum of 618






These are of course numbers from the wall. The actual system would have been pulling less.

Getting a good PSU is very important. However the amount of wattage needed is usually grossly overstated today.

Also Prime 95 is in no way a good indication of power draw. It is really nothing more than a Power Virus anymore and can damage CPUs. And more importantly does not show the true limits or capabilities of a system.

[bp7178]

Next I ran Intel Burn test on Very High while running Unigen Heaven Benchmark on Extreme while set to system Resolution which is 3440x1440.


Also Prime 95 is in no way a good indication of power draw. It is really nothing more than a Power Virus anymore and can damage CPUs.

Now that is a proper test. I agree to a point about Prime 95. It depends on which version, as to how shitty of a program it is. I much prefer IBT.