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Please Advise Improvements on This Build

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cjb4

Registered
Joined
Oct 8, 2008
I welcome your advice on improving this build.
CPU
Intel Core i7-6850K 3.6GHz 6-Core Processor $607.99
CPU Cooler
Corsair H115i 104.7 CFM Liquid CPU Cooler $119.99
Motherboard
Asus X99-A II ATX LGA2011-3 Motherboard $233.99
Memory
Corsair Vengeance LPX 32GB (4 x 8GB) DDR4-3200 Memory $199.99
Storage
Samsung 950 PRO 512GB M.2-2280 Solid State Drive $314.99
Video Card
EVGA GeForce GTX 1080 8GB FTW Gaming ACX 3.0 Video Card $644.00
Case
Phanteks Enthoo EVOLV ATX ATX Mid Tower Case $169.99
Power Supply
Corsair RMx 850W 80+ Gold Certified Fully-Modular ATX Power Supply $119.99
Operating System
Microsoft Windows 10 Pro OEM 64-bit $98.99
Total: $2509.92

Thanks,
cjb4
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
What do you want to do with it? Hard to help improve something when we don't even know what its for.

Random thoughts though...............

1. Why a Hex core? Do you need this for work/productivity? Why did you pick it?
1. Why 32GB? 16GB should be fine for most people...
2. For a single GPU, or even SLI 1080's, you don't need 850W PSU. I say grab EVGA Supernova G2 650W. ;)
 

trents

Senior Member
Joined
Dec 27, 2008
As ED asked, what will your primary use or uses be for this build? It's mostly appropriate as it is for high end audio\video\graphics manipulation. And if you will be using it a lot for that you need to give more attention to your storage. If you will be using it for gaming primarily, you would be better off with a 6700k, at least better off in the wallet and with equal or better performance in games.
 
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Mjolnir

Member
Joined
Jun 5, 2009
Location
Sydney, Australia
If gaming, shed off like 1k and go for a 6700K, 16GB RAM, and general $150-200 board. Tada.

If production focused with a side of gaming, everything else looks fine, though I'd question the need for the 6850k over the 6800k. If you want to SLI, sure, and the PSU is right for that too. If no SLI, drop PSU to 600~ and stick with a 6800k assuming content creation
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
He can easily SLI 2 1080s and an intel chip with a 650w psu...they are 180W cards. Cpu is 125W. You an overclock both even. The only time you will get close to 600W is with EVERYTHING overclocked and running a stress test on both cards and cpu.

850w is overkill for two cards. For a single card. 500W is plenty.
 

Mjolnir

Member
Joined
Jun 5, 2009
Location
Sydney, Australia
I know he CAN run on 650. But not all 650 units have the required PCIE connectors. I'd say 750w will be reasonable because almost all have multiple PCIE connectors. I'm running an i5 with a 1070 on a 450w so I'm not really arguing wattage haha more around practicality.
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
Correct... not all do. Good point! He just needs to pay attention if he plans on going SLI. ;)

The EVGA Supernova G2 650W has all the connectors needed (2x 8pin (6+2), 2x 6pin) for 1080's. ;)
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
You know my opinion on power supplies...I don't like to run them near max load.

I like to run more than 80% max load.

If he plans to SLI down the road, overclock two 1080s (400 W), CPU + MB (200 W max), drives and fans (30 W) = 630 W.

630 W / 80% = 787 W

I'd stick with the 850 W if he plans to SLI.

If not, GPU (200 W) + CPU/MB (200 W) + 30 W at 80% load = 538 W...so 550 W or better supply would do!

:thup:


 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
You are overestimating on the CPU, mobo, etc...

324W PEAK (at the wall, 90% PSU) for a single, very overclocked (more than out of the box) GTX 1080. Add another 200W for an additional 1080 overclocked and that is ~524W PEAK AT THE WALL, or around 475W actual. This is 6700K at stock with watercooling, 2 SSDs, a spinner 5 fans. If I overestimated again with a 6850K and added another 75W for that CPU with overclocking,.......would bring me to 600W at the wall, or around 540W actual. 540W is 83% of 650W. And again, we are overestimating here. :)

Its right at your limit, but, this is not a problem to do on a quality PSU. This is why they are purchased, to be used.
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
My 2011-V3 cpu draws 50 W just sitting there, and 145 W when under full load (non-prime 95).

Each spinner or SSD draws about 8 W max load.

A typical case fan at 0.3 A will draw 3.6 W.

The AIO he calls out draws about 12 W at full load including the fans it powers (it has a separate PSU plug for power).

AIO + 3 case fans = about 25 W (ish)

3 drives = about 25 W (ish).

That's 195 W, not including MB power draw.

But - it's the engineer in me that is conservative! :D


 

Mjolnir

Member
Joined
Jun 5, 2009
Location
Sydney, Australia
I think you'll find X99 is not quite that efficient?

I'm around that power draw with a 1070 and 4690k OC'd. 200-220~w. So with a 1080 and x99 chip, say 250-300 to 'give room'. Say 500W with SLI actual draw. Give another 20% and yes we'll be around 600-650. :p

EDIT
Ohhh wait. You didn't include GPU? So 200w flat, then GPU. So actual load we're looking at 550-600 SLI? Maybeeee?
 
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EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
My 2011-V3 cpu draws 50 W just sitting there, and 145 W when under full load (non-prime 95).

Each spinner or SSD draws about 8 W max load.

A typical case fan at 0.3 A will draw 3.6 W.

The AIO he calls out draws about 12 W at full load including the fans it powers (it has a separate PSU plug for power).

AIO + 3 case fans = about 25 W (ish)

3 drives = about 25 W (ish).

That's 195 W, not including MB power draw.

But - it's the engineer in me that is conservative! :D
Yada... I have 5 fans and custom watercooling with a 24W pump... I have actual numbers.. not theory for the hardware listed for Pete's sake, LOL!

It will be fine.. except for the most puckered of people. :rofl:
 

Lochekey

Senior Pink Member
Joined
Sep 13, 2015
My 2011-V3 cpu draws 50 W just sitting there, and 145 W when under full load (non-prime 95).

Each spinner or SSD draws about 8 W max load.

A typical case fan at 0.3 A will draw 3.6 W.

The AIO he calls out draws about 12 W at full load including the fans it powers (it has a separate PSU plug for power).

AIO + 3 case fans = about 25 W (ish)

3 drives = about 25 W (ish).

That's 195 W, not including MB power draw.

But - it's the engineer in me that is conservative! :D

How are you getting these wattage values? Are you running a kill-o-watt meter or using an ammeter and multimeter to calculate power draw?
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
Just ran a worst case.......

6950x @ 4.2 GHz with 1070 Overclocked as far as it will go. Played BF1... Saw 404W peak on the Kill A Watt. Add another 220W (20W for 1070 to 1080 difference and another 200W for the second overclocked GPU), that is 626W at the wall or ~565W actual. Id run ALL DAY LONG using 565W actual on a quality 650W/54A 12V PSU.

This rig is custom loop with 5 fans, 8 in total. 1 HDD, 1 M.2 drive and 2 SSDs.. 4x4GB DDR4 3200 1.35V.
 

Mjolnir

Member
Joined
Jun 5, 2009
Location
Sydney, Australia
So assuming a normal rig with no pump, drop 24w, and maybe a few extra for fans as most would have maybe 5 total. So 30w off. I'd still rather run a 750w for 1080 SLI with X99 personally. I like the 80% or less idea myself too. :p. Actually I prefer the 50% range. XD.
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
How are you getting these wattage values? Are you running a kill-o-watt meter or using an ammeter and multimeter to calculate power draw?

1. I have software (open hardware monitor) that pulls the CPU power reading.
2. I can read the spec on a fan and multiply (0.3 A at 12 V is 3.6 W)
3. I can read a spec sheet on a hard drive or SSD that says max power draw is 8 W
4. I can do basic arithmetic! :D


Here is a shot of my system right now, running folding at home (my UPS says I am drawing 720 W total power right now)

system 1.jpg


My monitor draws 25 W, so the system draw is 695 W from the UPS (from the wall).

I am currently running a titanium PSU...so my the PSU efficiency is about 93%...so my total power draw is 695 W * 0.93 = 646 W. This is currently split as follows:

Titan XP: 100% TDP = 250 W
980 Ti: 90% TDP = 225 W

Rest of system + CPU = 646 - 250 - 225 = 171 W

The CPU (by the screenshot) is drawing 80 W.

Rest of system = 171 - 80 W = 91 W

This 91 W is split between:
- 1 SSD
- 2 Hard Drives
- 11 fans
- 1 CPU AIO pump
- The motherboard

:D :thup: :D
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
We are (hypothetically) dealing with 2x 180W cards here, not a 225W and 250W. Big difference... 475W vs 360W for the cards (at stock).

If you buy a PSU and plan to run it in the 50% range, you are bad with your money when it comes to PSU selection, LOL! 80% or so is a good range. As I said before, I happily ran a 5820K at 4.5Ghz (4.8Ghz for benching) and a 295x2 (500W stock) that waas also overclocked, on a 750W PSU. Now, THAT, friends, is cutting it close, 2 1080s and a BW-e overclocked would be fine. If you want to pay more for additional peace of mind, by all means. Me, I'm taking the liberty of getting more libations with that extra cash. :)
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
Agreed - I was answering Lochekey's question.

See my math in post #8.

My 180 W TDP 1080 FTW card let's me go to 130% TDP = 234 W.

Most folks won't overclock a video card that hard...so in post #8 I said overclocked 1080 at 200 W...or 111% TDP.
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
My 180 W TDP 1080 FTW card let's me go to 130% TDP = 234 W.
Best of luck to you (read: anyone) trying to reach that without voltage control/the meager volts it does raise.

What is your power use with the 1080 when folding? folding and overclocked?
 

bob4933

Member
Joined
Jan 3, 2014
No dog in this fight, but ->

Well. Physics.

Assuming a stock tdp of 95w @ 1.238v, bringing a 6700k to 4.8ghz at 1.520v (this is the highest I've seen on water [LN2 need not apply xD], so using worst case scenario. Im sure theres a higher one out there, but this is already breaching the realm of practicality) brings total power to EXACTLY (not "about" not "around" not "close to") 171.8504753876308 watts.

200w for cpu + mb seems pretty fair for an extremist/enthusiast overclock. For a nominal 24/7 system, this number is obviously "high", but a friendly number



5 fans at .3A would obviously be 18 watts at 100% loading, 1 ssd and 1 hdd would be ... lets call it 15w worst case.


obviously a gtx 1080 is rocking a 180w tdp, and due to power delivery and efficiency, has very few "spikes". On a stock system i7 6700k and 16gb of ddr4 ram, using specialized equipment, total draw came out to 178w on a single gtx 1080 with boost clock enabled while stress testing. Thats rather astounding. Overclocked results in gaming brought total consumption to 206w.

Test gear:
2 x Rohde & Schwarz HMO 3054, 500MHz Digital Multi-Channel Oscilloscope with Storage Function
4 x Rohde & Schwarz HZO50 Current Probe (1mA - 30A, 100kHz, DC)
4 x Rohde & Schwarz HZ355 (10:1 Probes, 500MHz)
1 x Rohde & Schwarz HMC 8012 Digital Multimeter with Storage Function
1 x Optris PI640 80Hz Infrared Camera + PI Connect


Now, 206+206+200+33 -> 645 watt loading at 100% on everything (ha).

A 750w psu gives you a 14% headroom that frankly, will never be seen nor needed. 650 is running at the bleeding edge tbh. 850 gives ~25% headroom, but still not in the "overkill" territory yet imo. Anything more than 850 is ridiculously unnecessary.

I think 750w is the right call. Gives some leeway for current spikes (startup current is a thing ladies and germs), but keeps the cost in the "this is ok" category. 850+ psu's typically have a ridiculous markup for some reason. For a single card, obviously even 750 is laughably over the top, but does limit upgrade path.