Overclock.net › Forums › Cooling › Water Cooling › will this be a bad loop order (2 rad)
New Posts  All Forums:Forum Nav:

will this be a bad loop order (2 rad)

post #1 of 10
Thread Starter 
Pump / Reservoir combo - 480 Rad - Cpu block - Gpu block #1- Gpu block #2 - 240 Rad - (again) pump/ reservoir.

This is the best way for me to run my tubing.

My problem with this is seeing the cpu + SLI gpu right after each other running hot water, will it be a problem or a rad has to be in the middle.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
post #2 of 10
I would put the second rad after CPU so it can cool it before going into GPU's.
post #3 of 10
Run it the best way it looks after Res>Pump the temps will equal out after you run it a while anyway
My System
(27 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1100T Crosshair V Formula NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMRAMRAM
G.Skill G.Skill G.Skill G.Skill 
Hard DriveHard DriveOptical DriveOS
Crucial M4 2.5" 256GB SATA III MLC Internal Sol... Western Digital Caviar Black WD1002FAEX 1TB 720... SONY Black 12X BD-R 2X BD-RE 8X DVD+R 5X DVD-RA... Microsoft Windows 7 Ultimate SP1 64-bit 
MonitorKeyboardPowerCase
HP LED Black 27" 5ms HDMI Widescreen LED BackLi... Logitech G510 Black 18 Function Keys USB Wired ... SILVERSTONE ST1500 1500W ATX 12V 2.3 & EPS 12V ... XSPC H1 Hive Series Cube Enthusiast Water Cooli... 
MouseMouse PadAudioOther
Logitech G500 10 Buttons Dual-mode Scroll Wheel... Ozone Gaming Gear GROUND LEVEL L Gaming Mouse Pad Cooler Master Circumaural Storm Sirus Headset -... XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... 
OtherOtherOtherOther
XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... 
OtherOtherOther
XSPC EX360 Triple 120mm Low Profile Split Fin R... EK ASUS Crosshair V Full Board Cooling Block Ki... EK Supreme HF Universal CPU Liquid Cooling Bloc... 
  hide details  
Reply
My System
(27 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1100T Crosshair V Formula NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMRAMRAM
G.Skill G.Skill G.Skill G.Skill 
Hard DriveHard DriveOptical DriveOS
Crucial M4 2.5" 256GB SATA III MLC Internal Sol... Western Digital Caviar Black WD1002FAEX 1TB 720... SONY Black 12X BD-R 2X BD-RE 8X DVD+R 5X DVD-RA... Microsoft Windows 7 Ultimate SP1 64-bit 
MonitorKeyboardPowerCase
HP LED Black 27" 5ms HDMI Widescreen LED BackLi... Logitech G510 Black 18 Function Keys USB Wired ... SILVERSTONE ST1500 1500W ATX 12V 2.3 & EPS 12V ... XSPC H1 Hive Series Cube Enthusiast Water Cooli... 
MouseMouse PadAudioOther
Logitech G500 10 Buttons Dual-mode Scroll Wheel... Ozone Gaming Gear GROUND LEVEL L Gaming Mouse Pad Cooler Master Circumaural Storm Sirus Headset -... XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... 
OtherOtherOtherOther
XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... 
OtherOtherOther
XSPC EX360 Triple 120mm Low Profile Split Fin R... EK ASUS Crosshair V Full Board Cooling Block Ki... EK Supreme HF Universal CPU Liquid Cooling Bloc... 
  hide details  
Reply
post #4 of 10
The best way to tube is whatever is easiest in your setup. As long as the Res is before the Pump (or integrated), that's all you really need to worry about. The rise and fall of water temperature before and after blocks/rads is only 1-2C each. Essentially, the water temperature will be fairly consistent throughout the loop.
 
Liquid i5
(18 items)
 
Budget BOINCer
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 3930k Asus Rampage IV Gene Micro ATX LGA2011 Diamond Radeon HD 7970 Diamond Radeon HD 7970 
RAMHard DriveCoolingOS
G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1866 Samsung 840 Pro Series 256GB Heatkiller Waterblocks! Windows 8 Pro 
PowerCase
Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
CPUMotherboardGraphicsRAM
Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
CoolingCoolingOSMonitor
CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
PowerCaseMouseAudio
Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
CPUMotherboardGraphicsRAM
Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
Hard DriveCoolingCoolingCooling
Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
OSPowerCase
XP Pro Seasonic Platinum 860 Fractal Arc Midi 
  hide details  
Reply
 
Liquid i5
(18 items)
 
Budget BOINCer
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 3930k Asus Rampage IV Gene Micro ATX LGA2011 Diamond Radeon HD 7970 Diamond Radeon HD 7970 
RAMHard DriveCoolingOS
G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1866 Samsung 840 Pro Series 256GB Heatkiller Waterblocks! Windows 8 Pro 
PowerCase
Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
CPUMotherboardGraphicsRAM
Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
CoolingCoolingOSMonitor
CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
PowerCaseMouseAudio
Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
CPUMotherboardGraphicsRAM
Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
Hard DriveCoolingCoolingCooling
Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
OSPowerCase
XP Pro Seasonic Platinum 860 Fractal Arc Midi 
  hide details  
Reply
post #5 of 10
Thread Starter 
Are the any test on this that can be link. i always tought that putting rad after blocks will give you better temp
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
post #6 of 10
In 99% of watercooling systems there is no "optimal" component ordering, EXCEPT that which minimizes tight bends and overall tubing length. This is not always true as there can be a significant difference (read: measurable) when dealing with extremely high heat loads, like those found in systems in which one or more components are actively cooled by a TEC. Because of water's high heat capacity, there is very little change in water temperature due to the heat dump from components that may be considered "parasitic" to the loop's most efficient operating conditions. What do I mean by this? In your case, this only really applies to the pump.

Example:

Specific heat of water (c) = 4.186 J/gram-°C

By definition 1 Joule (unit of energy) = 1 Watt-second (unit of power)

therefore, c = 4.186 W-sec/gram-°C

Meaning, if you pump "dumped" a modest 15W of heat into your loop:

Q = cm(ΔT) where Q is the heat added (15W), c is the specific energy of the material "receiving" the heat energy (water), m is the mass of the material, and delta T is the rise in temperature of the material.

Since this would ultimately depend on flow rate (to be given as g/sec, L/hr, gal/min or whatever other units you desire) we are going to simplify our example by assuming your flow rate is 2L/min:

(2L/min)(1 min/60 sec)(1000 g/1L) = ~42 g/sec (1L water = 1000 g by definition)

Q = cm(ΔT) => 15W = (42 g/sec)(4.186 W-sec/g-°C)(ΔT) -> ΔT = 0.08 °C

As you can see, certainly not a lot of temperature rise due to the pump alone. So assuming the water temperature entering the pump was 25°C exactly, this would mean that the outlet temperature from the pump would be 25.08°C. If the CPU (or any other block) was located such that the outlet of the pump directly feed it then the supply temperatures would be 25.08°C! (assuming that your tubing was a perfect insulator)

Try repeating this calculation with higher flow rates (3L/min, 4L/min, etc.) and you will see that in any case there is not much to be gained by sending the water from the pump through the radiator before any cooling block/device. In fact, due to the extremely small water temperature increase from to the pump I'm no so sure you would see ANY difference in radiator outlet temperature (a passive heatsink's ability to reject heat is directly proportional to the difference in temperature between the medium being cooled and the medium providing the cooling, in this case air at ambient).

Finally, since the GPU and CPU block locations are the only other real question, I can only provide you with the same advice. Using the equation above you can calculate the approximate rise in water temperature across the block (I say approximate because Q in the given equation can only be approximated from true processor power consumption since calculations, as provided, would have to assume that 100% of the heat from the processor is transmitted to the block and then to the water, which is untrue...). Then it's just a matter of determining which component you think needs that extra degree or two of cooling to perform best. At this point it's really a matter of preference and/or individual testing (which would require that you test the loop with each block individually installed, to remove the other as a competing variable, and then plotting the overclock results as a function of supply water temperature).

I hope I've at least partially answer your question. If not, here's the bottom line: I believe you will find that there is little to no performance difference to be achieve by ordering components in your loop. Instead, work to minimize flow resistance (smooth tubing bends and as little tubing used as possible). Any optimizations here will allow for maximum flow
Edited by Los Hog - 11/11/11 at 9:43am
My System
(27 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1100T Crosshair V Formula NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMRAMRAM
G.Skill G.Skill G.Skill G.Skill 
Hard DriveHard DriveOptical DriveOS
Crucial M4 2.5" 256GB SATA III MLC Internal Sol... Western Digital Caviar Black WD1002FAEX 1TB 720... SONY Black 12X BD-R 2X BD-RE 8X DVD+R 5X DVD-RA... Microsoft Windows 7 Ultimate SP1 64-bit 
MonitorKeyboardPowerCase
HP LED Black 27" 5ms HDMI Widescreen LED BackLi... Logitech G510 Black 18 Function Keys USB Wired ... SILVERSTONE ST1500 1500W ATX 12V 2.3 & EPS 12V ... XSPC H1 Hive Series Cube Enthusiast Water Cooli... 
MouseMouse PadAudioOther
Logitech G500 10 Buttons Dual-mode Scroll Wheel... Ozone Gaming Gear GROUND LEVEL L Gaming Mouse Pad Cooler Master Circumaural Storm Sirus Headset -... XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... 
OtherOtherOtherOther
XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... 
OtherOtherOther
XSPC EX360 Triple 120mm Low Profile Split Fin R... EK ASUS Crosshair V Full Board Cooling Block Ki... EK Supreme HF Universal CPU Liquid Cooling Bloc... 
  hide details  
Reply
My System
(27 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1100T Crosshair V Formula NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMRAMRAM
G.Skill G.Skill G.Skill G.Skill 
Hard DriveHard DriveOptical DriveOS
Crucial M4 2.5" 256GB SATA III MLC Internal Sol... Western Digital Caviar Black WD1002FAEX 1TB 720... SONY Black 12X BD-R 2X BD-RE 8X DVD+R 5X DVD-RA... Microsoft Windows 7 Ultimate SP1 64-bit 
MonitorKeyboardPowerCase
HP LED Black 27" 5ms HDMI Widescreen LED BackLi... Logitech G510 Black 18 Function Keys USB Wired ... SILVERSTONE ST1500 1500W ATX 12V 2.3 & EPS 12V ... XSPC H1 Hive Series Cube Enthusiast Water Cooli... 
MouseMouse PadAudioOther
Logitech G500 10 Buttons Dual-mode Scroll Wheel... Ozone Gaming Gear GROUND LEVEL L Gaming Mouse Pad Cooler Master Circumaural Storm Sirus Headset -... XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... 
OtherOtherOtherOther
XSPC Dual 5.25" Bay Reservoir - w/ Alphacool VP... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... XSPC EX360 Triple 120mm Low Profile Split Fin R... 
OtherOtherOther
XSPC EX360 Triple 120mm Low Profile Split Fin R... EK ASUS Crosshair V Full Board Cooling Block Ki... EK Supreme HF Universal CPU Liquid Cooling Bloc... 
  hide details  
Reply
post #7 of 10
The loop is usually run however it best fits in the rig but the only down side to having radiators right after the pump is the decrease in water flow. Also, its better to avoid right angle fittings if possible because they restrict the water flow. Other than that the loop looks like it will work.
 
Project Sophos
(23 items)
 
Server
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel 3930k Asus P9X79 Deluxe  EVGA GTX 670 2GB 2670-KR EVGA GTX 670 2GB 2670-KR 
RAMHard DriveCoolingCooling
G.Skill Sniper 16GB  Western Digital Caviar Black 1Tb EK Supreme LTX CPU Plexi/Nickel waterblock EK GTX 670 Plexi/Copper waterblock  
CoolingCoolingCoolingOS
EK GTX 670 Plexi/Copper waterblock  Dual Swiftech 655-B Pumps with Bitspower Top Two XSPC RX480 Radiators Windows 7-64 bit 
MonitorPowerCaseMouse
3 Dell S2340L 23" Cooler Master 1000w Silent Pro Custom Oak Desk Logitech G700 
CPUMotherboardGraphicsGraphics
AMD 1100T 3.3Ghz @ 4.012Ghz Asus Sabertooth 990FX Sparkle GTX 560TI EVGA Geforce GTX 460 Fermi 
RAMHard DriveHard DriveOptical Drive
Patriot G2 Western Digital Caviar Blue Western Digital Caviar Blue none - their ancient 
CoolingCoolingCoolingCooling
EK-Supreme LTX CPU Water Block - Acetal EK-VGA Supreme HF High Performance GPU Water Bl... Tejava glass bottle Swiftech MCP-655B 
CoolingOSOSMonitor
Masterkleer 1/2" ID 3/4" OD tubing Ubuntu 10.10 64-bit Windows 7 64-bit I-inc 22" 
MonitorKeyboardPowerCase
I-inc 22" Logitech k-300 Gaming Keyboard Thermaltake Toughpower 775 Watt Power Supply Corsair 800D 
MouseMouse PadOther
Logitech G700 Eh they're useless Scythe Kaze Master Pro 
CPUCPUMotherboardGraphics
Intel Xeon E5-2670  Intel Xeon E5-2670  Intel S2600CP2 Headless 
RAMHard DriveHard DriveHard Drive
Samsung ECC 2Rx4 PC3 10600R E1-P1 Western Digital Black Western Digital Blue Western Digital Blue 
OSPowerCase
Centos 7x64 EVGA 750w Bronze Fractal Design Core 3500 
  hide details  
Reply
 
Project Sophos
(23 items)
 
Server
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel 3930k Asus P9X79 Deluxe  EVGA GTX 670 2GB 2670-KR EVGA GTX 670 2GB 2670-KR 
RAMHard DriveCoolingCooling
G.Skill Sniper 16GB  Western Digital Caviar Black 1Tb EK Supreme LTX CPU Plexi/Nickel waterblock EK GTX 670 Plexi/Copper waterblock  
CoolingCoolingCoolingOS
EK GTX 670 Plexi/Copper waterblock  Dual Swiftech 655-B Pumps with Bitspower Top Two XSPC RX480 Radiators Windows 7-64 bit 
MonitorPowerCaseMouse
3 Dell S2340L 23" Cooler Master 1000w Silent Pro Custom Oak Desk Logitech G700 
CPUMotherboardGraphicsGraphics
AMD 1100T 3.3Ghz @ 4.012Ghz Asus Sabertooth 990FX Sparkle GTX 560TI EVGA Geforce GTX 460 Fermi 
RAMHard DriveHard DriveOptical Drive
Patriot G2 Western Digital Caviar Blue Western Digital Caviar Blue none - their ancient 
CoolingCoolingCoolingCooling
EK-Supreme LTX CPU Water Block - Acetal EK-VGA Supreme HF High Performance GPU Water Bl... Tejava glass bottle Swiftech MCP-655B 
CoolingOSOSMonitor
Masterkleer 1/2" ID 3/4" OD tubing Ubuntu 10.10 64-bit Windows 7 64-bit I-inc 22" 
MonitorKeyboardPowerCase
I-inc 22" Logitech k-300 Gaming Keyboard Thermaltake Toughpower 775 Watt Power Supply Corsair 800D 
MouseMouse PadOther
Logitech G700 Eh they're useless Scythe Kaze Master Pro 
CPUCPUMotherboardGraphics
Intel Xeon E5-2670  Intel Xeon E5-2670  Intel S2600CP2 Headless 
RAMHard DriveHard DriveHard Drive
Samsung ECC 2Rx4 PC3 10600R E1-P1 Western Digital Black Western Digital Blue Western Digital Blue 
OSPowerCase
Centos 7x64 EVGA 750w Bronze Fractal Design Core 3500 
  hide details  
Reply
post #8 of 10
Quote:
In 99% of watercooling systems there is no "optimal" component ordering, EXCEPT that which minimizes tight bends and overall tubing length. This is not always true as there can be a significant difference (read: measurable) when dealing with extremely high heat loads, like those found in systems in which one or more components are actively cooled by a TEC. Because of water's high heat capacity, there is very little change in water temperature due to the heat dump from components that may be considered "parasitic" to the loop's most efficient operating conditions. What do I mean by this? In your case, this only really applies to the pump.

Stupid Question Inc!

So what is the point of needing an increasing amount of radiator real estate for additional heat sources? Is it because the water temp will rise a few degrees each loop instead of maintaining a certain temp?
post #9 of 10
Quote:
Originally Posted by Rmerwede View Post

Quote:
In 99% of watercooling systems there is no "optimal" component ordering, EXCEPT that which minimizes tight bends and overall tubing length. This is not always true as there can be a significant difference (read: measurable) when dealing with extremely high heat loads, like those found in systems in which one or more components are actively cooled by a TEC. Because of water's high heat capacity, there is very little change in water temperature due to the heat dump from components that may be considered "parasitic" to the loop's most efficient operating conditions. What do I mean by this? In your case, this only really applies to the pump.
Stupid Question Inc!
So what is the point of needing an increasing amount of radiator real estate for additional heat sources? Is it because the water temp will rise a few degrees each loop instead of maintaining a certain temp?

increased surface area to cool the "water" system, which ideally hits to around room temperature (or dissipating enough heat to reach as close to room temperature within the water system)
post #10 of 10
Quote:
Originally Posted by Los Hog View Post

In 99% of watercooling systems there is no "optimal" component ordering, EXCEPT that which minimizes tight bends and overall tubing length. This is not always true as there can be a significant difference (read: measurable) when dealing with extremely high heat loads, like those found in systems in which one or more components are actively cooled by a TEC. Because of water's high heat capacity, there is very little change in water temperature due to the heat dump from components that may be considered "parasitic" to the loop's most efficient operating conditions. What do I mean by this? In your case, this only really applies to the pump.
Example:
Specific heat of water (c) = 4.186 J/gram-°C
By definition 1 Joule (unit of energy) = 1 Watt-second (unit of power)
therefore, c = 4.186 W-sec/gram-°C
Meaning, if you pump "dumped" a modest 15W of heat into your loop:
Q = cm(ΔT) where Q is the heat added (15W), c is the specific energy of the material "receiving" the heat energy (water), m is the mass of the material, and delta T is the rise in temperature of the material.
Since this would ultimately depend on flow rate (to be given as g/sec, L/hr, gal/min or whatever other units you desire) we are going to simplify our example by assuming your flow rate is 2L/min:
(2L/min)(1 min/60 sec)(1000 g/1L) = ~42 g/sec (1L water = 1000 g by definition)
Q = cm(ΔT) => 15W = (42 g/sec)(4.186 W-sec/g-°C)(ΔT) -> ΔT = 0.08 °C

As you can see, certainly not a lot of temperature rise due to the pump alone. So assuming the water temperature entering the pump was 25°C exactly, this would mean that the outlet temperature from the pump would be 25.08°C. If the CPU (or any other block) was located such that the outlet of the pump directly feed it then the supply temperatures would be 25.08°C! (assuming that your tubing was a perfect insulator)

As I can see what?

All I see is a bunch of numbers and symbols. lol
Jermzz
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k ASUS Rampage IV Extreme EVGA GTX 580 32 GB Corsair Dominator 1866 CL9 
Hard DriveCoolingOSMonitor
2x Corsair Force GT 120 RAID 0 water cooled Win 7 Ultimate x64 HP w24 
PowerCaseMouse
AX1200 Modded Reverse ATX TJ07 Lachesis 
  hide details  
Reply
Jermzz
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k ASUS Rampage IV Extreme EVGA GTX 580 32 GB Corsair Dominator 1866 CL9 
Hard DriveCoolingOSMonitor
2x Corsair Force GT 120 RAID 0 water cooled Win 7 Ultimate x64 HP w24 
PowerCaseMouse
AX1200 Modded Reverse ATX TJ07 Lachesis 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › will this be a bad loop order (2 rad)