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Heat Load Calculator

post #1 of 6
Thread Starter 
Is there a Heat Load Calculator or a list of PC parts out there?

I now have all the water blocks i need, I'm now looking to start buying fans and radiators but would like to get an idea of my heat load.

Items I will be cooling:

Motherboard: ASUS Crosshair V Formula - Z
Processor: AMD FX–8350 4.0Ghz
Memory: (x4) Dominator Platinum 1.5V 32GB Memory Kit (CMD32GX3M4A1600C9)
Video Card(s): (x2) XFX Radeon HD 6970 HD-697A-CNFC Ver. 1.1



I found a figure of 1 watt = 3.412 BTUs + Extra smile.gif

Processor: AMD FX–8350 4.0Ghz = 512 BTUs
Video Card(s): (x2) XFX Radeon HD 6970 HD-697A-CNFC Ver. 1.1 -300 watts each = 1023.5 BTUs x 2 = 2047 BTUs
Edited by Sir Diesel - 10/26/13 at 2:55pm
post #2 of 6
Not that I know of, but it would probably not be right if it where one anyways. As cpu's and gpu's are so vastly different when it comes to temps. The same cpu or gpu type can be up towards 30c difference.
Watt calculators though there are plenty of.
    
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Hard DriveCoolingOSMonitor
|840 Pro 256gb| |WD Red 2tb| |Corsair H50| |Windows 10 Pro x64| |27" QNIX QX2710 @ 2560x1440 100hz| 
KeyboardPowerCaseMouse
|Logitech G810 Orion Spectrum RGB| |Cooler Master 700w Silent Pro Gold| |Antec 1200 Orange mod| |Logitech G502 Proteus Spectrum RGB|  
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post #3 of 6
Thread Starter 
How does one calculate the amount a radiator and air flow needed?
post #4 of 6
Quote:
Originally Posted by Sir Diesel View Post

How does one calculate the amount a radiator and air flow needed?

Usually its thought of as, 120mm per component. That 120 typically refers to a rad of decent thickness with good fans on it. Of course you really want as much rad as you can fit since you can have slower fans (or fans turned down) for silence. Then you can end up with silence and lower temps.

BTW, 6970s are NOT 550w each. They are 250w TDP and probably ~300w with an overclock. If you got those ratings of 550w from a review its way off. Reviews test the TOTAL load of the system, including the CPU. Your CPU has a TDP of 125w even if we round up to 150w its a total of 750w. Meaning if we use your info:
Quote:
Originally Posted by Sir Diesel View Post

I found a figure of 1 watt = 3.412 BTUs
Processor: AMD FX–8350 4.0Ghz = 427.5 BTUs
Video Card(s): (x2) XFX Radeon HD 6970 HD-697A-CNFC Ver. 1.1 - 550 watts each = 1,876.6 BTUs x 2 = 3,753.2 BTUs

Using the rounded up values, it would actually be closer to CPU = 512 BTUs and GPUs = 2047 BTUs. That however is an incorrect calculation since that would assume all power went solely to heat which it does not. IMO your absolute minimum would be a 360 radiator. You would be well suited to get more, no idea of the case or I would suggest more rad sizes that would fit.
Edited by DarkHollow - 10/26/13 at 11:29am
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0verL0ad
(23 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 2700k Asus Sabertooth P67 Asus Radeon 7970 Ref. Crucial Ballistix 
RAMHard DriveHard DriveOptical Drive
Corsair Vengeance Crucial M4 Hitachi HDS721010CLA332 TSSTcorp CDDVDW SH-S223F 
CoolingCoolingCoolingCooling
EK Supreme HF Copper/Red Acrylic CPU Block EK 7970 Reference Nickle/Acetal Black Ice SR1 360 Rad Phobya G-Changer 280mm Radiator 
CoolingOSMonitorMonitor
XSPC Dual Bayres W/ D5 Vario @ 17V Windows 7 x64 Vizio SV320XVT Samsung SyncMaster S27A550H 
MonitorKeyboardPowerCase
Samsung SyncMaster S27A550H Logitech G510 Corsair TX950W Azza 9000B 
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by DarkHollow View Post


BTW, 6970s are NOT 550w each. They are 250w TDP and probably ~300w with an overclock. If you got those ratings of 550w from a review its way off. Reviews test the TOTAL load of the system, including the CPU. Your CPU has a TDP of 125w even if we round up to 150w its a total of 750w.

Meaning if we use your info:
Using the rounded up values, it would actually be closer to CPU = 512 BTUs and GPUs = 2047 BTUs. That however is an incorrect calculation since that would assume all power went solely to heat which it does not. IMO your absolute minimum would be a 360 radiator. You would be well suited to get more, no idea of the case or I would suggest more rad sizes that would fit.

Thank you for your help thumb.gif, yes I have been trying to find specs for the different components, the GPU info. was from MFG voltage requirements. I'm glad to know Its much less.

My plan is to run the pumps, res. and rads in a spare case I have lying around.

post #6 of 6
Thread Starter 
I found this on the Koolance site:

Determining Approximate Heat Output
Quote:
Hardware is designed with a TDP, or "Thermal Design Power" in mind. This is the maximum amount of heat a cooling system is expected to handle for that component at normal clock speed and voltage. Here is a rough guide:

CPU Processor: 60-150W
Video Card
Single GPU (low-end): 100W
Single GPU (mid-range): 150-250W
Single GPU (high-end): 200-350W
Dual GPU (high-end): 300-450W
Motherboard
Chipset: 10-30W
Voltage Regulators: 5-20W
Memory: 2-5W per stick
Hard Drive (regular or SSD): 10-30W
The two primary targets for water cooling in a PC computer are the CPU and video graphics card. These areas produce the highest amount of heat and benefit most from liquid cooling. We can consider these "high heat" sources (a dual-GPU video card should be considered as two high heat sources). The remaining areas on the motherboard, RAM, and hard drives are considered "low heat" sources. Low heat components can be considered in aggregate, but they don't usually contribute enough heat to significantly affect radiator selection.

I'm thinking I'll estimate my loads on the high side to give myself a little head room.

CPU Processor: 150W

Dual GPU (high-end): 450W

Motherboard
Chipset: 30W
Voltage Regulators:20W

Memory: 5W per stick (x4) 20W
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