- Joined
- Mar 1, 2003
- Location
- Georgia
My biggest confusion right now is how to determine how much radiator capacity I need.
I am planning on a new computer build after the Haswell CPUs, compatible motherboards, and new graphics cards arrive. Probably those will have come out during June 2013; closely followed by cpu water blocks and gpu waterblocks for the new wave of products. I will not know what to buy until after the wave of new products arrive. I'll have lots of reading to do in June. Hopefully sometime in July I can make some informed choices as to products.
In planning for a water cooling loop that cools one Haswell CPU such as the 4770K (3.9GHz, 84 TDP, cpu voltage ?), and two GPUs (Radeon HD 8xxx or nVidia 7xx) of the power of a HD 7970 or a GTX 680; how much capacity for the radiator/s would I need for a strong overclock?
"Haswell will accept two input voltages: Vccin for logic and Vddq for DRAM. Vccin should typically be somewhere in the 1.8V - 2.3V range, with a max of 3.04V." from http://www.anandtech.com/show/6898/intel-details-haswell-overclocked-at-idf-beijing
"With Haswell, . . . Instead of having separate Voltage input rails, Intel has merged all into a single input.
This one input goes by Vccin and serves as input voltage for the integrated voltage regulation (iVR). It supports up to 3.04V input, which means a lot of current can be driven into the CPU. The iVR uses the input to distribute voltage to the various parts inside the CPU. You can still deliver all the way up to 2.0V to the cores, the ring and the integrated graphics and it supports a 500mV over offset for the system agent and the IO." http://hwbot.org/news/9347_intel_haswell_overclocking_fully_disclosed_theory_for_core_i7_4770k/
I would assume a maximum ambient air temperature of 78 Fahrenheit (25.5C).
I want a quiet fan setup. Maximum fan noise 35db. I will likely limit fan rpm to 1200. I have read that a fin count on the radiator needs to be 10 per inch or under and low RPM fans with attention to blade design to have a quiet fan setup.
From reading I assume that I want a Delta T (DT) of between 5 and 10.
From skinneelabs.com site I get that the Coolgate 360 has a C/W of 0.040236 (at 0.8GPM and 800RPM). If the overclocked cpu has a heatload of 150 watts and the two GPUs have a combined heatload of 500 watts for a total heatload of 650 watts,
then:
650 times 0.040236 (at 0.8GPM + 800RPM) = 26.15. DT = 26.15. I need more radage!
650 times 0.024877 (max GPM + 1200RPM) = 16.17. Need more radage.
From another source (skinneelabs.com chart of HWLabs SR1 360, 1.5GPM, 3 Fans Pull):
DT = 10, fan 607RPM, Heat Load ~260 Watts
DT = 10, fan 1004RPM, Heat Load ~345 Watts
DT = 10, fan 1400RPM, Heat Load ~445 Watts
Looks like I need two good 360 (120.3) rads, if I limit my fan speed to 1200RPM and my pump at 100% will move at least 2.0GPM.
I am looking at a large computer case, such as the Corsair 900D to allow many options in placing the components for the contemplated build, and allow for future options.
Water cooling components:
Koolance CPU-380 Intel Liquid Cooling CPU Block (for 4770K)
Coolgate Triple 120mm [413.6 x 124 x 60 mm](times two)
Swiftech MCP-35X with Res Pump Reservoir V2
MCP-35X Series Heat Sink
2 x VGA water blocks (for whichever GPUs I end up getting)
fittings
tubing 1/2" I.D./ 3/4" O.D.
silver kill coil
distilled water
push/pull fan configuration (if it will fit) Gentle Typhoon AP-15
TIM
fan controller
Is it prudent to have two temperature sensors (on the lines in and out of the radiator), a flow sensor, and a pressure sensor in the system?
I am assuming a budget of around $800 for the water cooling components (really unknowable at this time since the products are not on the market).
To give some indication of my level of experience, I have assembled about a dozen computers over the last 20 years; but I have never done a water cooling system. I have read extensively on this forum, learned a great deal from reading; but there is no substitute for hands on building.
My goal for water cooling is to try something new and challenging. I hope to get a couple more 100 MHz overclock compared to air cooling. If I may use an analogy to try to explain my concept of water cooling, water cooling is to air cooling as a Porsche turbo S is to a Subaru WRX. The Porsche costs $180,000, the WRX costs $30,000 and the WRX can do 90% of what the Porsche can do. Water cooling may cost $900 and air cooling $100 and air cooling can do 90% of what the water cooling can do. Is it worth it? To me it is greatly subjective. The value is not all in the performance numbers.
To restate my questions:
1) How much capacity for the radiator/s would I need for a strong overclock?
2) Is it prudent to have two temperature sensors, a flow sensors, and a pressure sensor in the system?
3) Is thickness of the radiator (60mm), fans (2 x 25mm, push/pull) and gaskets (?mm) an issue with the Corsair 900D?
4) Am I completely off-base on anything I have stated?
5) Have I failed to consider major issues?
If I have come to some wrong conclusions, please explain my errors.
I have a few months to learn more and gain information upon which to make informed decisions.
Thanks in advance for constructive criticism and advice.
I am planning on a new computer build after the Haswell CPUs, compatible motherboards, and new graphics cards arrive. Probably those will have come out during June 2013; closely followed by cpu water blocks and gpu waterblocks for the new wave of products. I will not know what to buy until after the wave of new products arrive. I'll have lots of reading to do in June. Hopefully sometime in July I can make some informed choices as to products.
In planning for a water cooling loop that cools one Haswell CPU such as the 4770K (3.9GHz, 84 TDP, cpu voltage ?), and two GPUs (Radeon HD 8xxx or nVidia 7xx) of the power of a HD 7970 or a GTX 680; how much capacity for the radiator/s would I need for a strong overclock?
"Haswell will accept two input voltages: Vccin for logic and Vddq for DRAM. Vccin should typically be somewhere in the 1.8V - 2.3V range, with a max of 3.04V." from http://www.anandtech.com/show/6898/intel-details-haswell-overclocked-at-idf-beijing
"With Haswell, . . . Instead of having separate Voltage input rails, Intel has merged all into a single input.
This one input goes by Vccin and serves as input voltage for the integrated voltage regulation (iVR). It supports up to 3.04V input, which means a lot of current can be driven into the CPU. The iVR uses the input to distribute voltage to the various parts inside the CPU. You can still deliver all the way up to 2.0V to the cores, the ring and the integrated graphics and it supports a 500mV over offset for the system agent and the IO." http://hwbot.org/news/9347_intel_haswell_overclocking_fully_disclosed_theory_for_core_i7_4770k/
I would assume a maximum ambient air temperature of 78 Fahrenheit (25.5C).
I want a quiet fan setup. Maximum fan noise 35db. I will likely limit fan rpm to 1200. I have read that a fin count on the radiator needs to be 10 per inch or under and low RPM fans with attention to blade design to have a quiet fan setup.
From reading I assume that I want a Delta T (DT) of between 5 and 10.
From skinneelabs.com site I get that the Coolgate 360 has a C/W of 0.040236 (at 0.8GPM and 800RPM). If the overclocked cpu has a heatload of 150 watts and the two GPUs have a combined heatload of 500 watts for a total heatload of 650 watts,
then:
650 times 0.040236 (at 0.8GPM + 800RPM) = 26.15. DT = 26.15. I need more radage!
650 times 0.024877 (max GPM + 1200RPM) = 16.17. Need more radage.
From another source (skinneelabs.com chart of HWLabs SR1 360, 1.5GPM, 3 Fans Pull):
DT = 10, fan 607RPM, Heat Load ~260 Watts
DT = 10, fan 1004RPM, Heat Load ~345 Watts
DT = 10, fan 1400RPM, Heat Load ~445 Watts
Looks like I need two good 360 (120.3) rads, if I limit my fan speed to 1200RPM and my pump at 100% will move at least 2.0GPM.
I am looking at a large computer case, such as the Corsair 900D to allow many options in placing the components for the contemplated build, and allow for future options.
Water cooling components:
Koolance CPU-380 Intel Liquid Cooling CPU Block (for 4770K)
Coolgate Triple 120mm [413.6 x 124 x 60 mm](times two)
Swiftech MCP-35X with Res Pump Reservoir V2
MCP-35X Series Heat Sink
2 x VGA water blocks (for whichever GPUs I end up getting)
fittings
tubing 1/2" I.D./ 3/4" O.D.
silver kill coil
distilled water
push/pull fan configuration (if it will fit) Gentle Typhoon AP-15
TIM
fan controller
Is it prudent to have two temperature sensors (on the lines in and out of the radiator), a flow sensor, and a pressure sensor in the system?
I am assuming a budget of around $800 for the water cooling components (really unknowable at this time since the products are not on the market).
To give some indication of my level of experience, I have assembled about a dozen computers over the last 20 years; but I have never done a water cooling system. I have read extensively on this forum, learned a great deal from reading; but there is no substitute for hands on building.
My goal for water cooling is to try something new and challenging. I hope to get a couple more 100 MHz overclock compared to air cooling. If I may use an analogy to try to explain my concept of water cooling, water cooling is to air cooling as a Porsche turbo S is to a Subaru WRX. The Porsche costs $180,000, the WRX costs $30,000 and the WRX can do 90% of what the Porsche can do. Water cooling may cost $900 and air cooling $100 and air cooling can do 90% of what the water cooling can do. Is it worth it? To me it is greatly subjective. The value is not all in the performance numbers.
To restate my questions:
1) How much capacity for the radiator/s would I need for a strong overclock?
2) Is it prudent to have two temperature sensors, a flow sensors, and a pressure sensor in the system?
3) Is thickness of the radiator (60mm), fans (2 x 25mm, push/pull) and gaskets (?mm) an issue with the Corsair 900D?
4) Am I completely off-base on anything I have stated?
5) Have I failed to consider major issues?
If I have come to some wrong conclusions, please explain my errors.
I have a few months to learn more and gain information upon which to make informed decisions.
Thanks in advance for constructive criticism and advice.
cant wait to see how this progresses for you once the parts are available.
(Thanks for making me feel young again 
(slight exaggeration).
