Overclock.net › Forums › Cooling › Water Cooling › How little radiator area can I get away with?
New Posts  All Forums:Forum Nav:

How little radiator area can I get away with?

post #1 of 6
Thread Starter 
I've searched the forum but haven't found any satisfactory answers.

I'm building a custom loop (first timer) into a Prodigy itx. It's running an i5 3470 and a 925mhz (that is to say standard clock speed) Powercolor 7990; that's 450W TDP combined.

I picked up an EKWB Coolstream 240 rad and a 200mm square rad (unsure of brand) but the 200 won't fit in the case with the 7990, so I'm considering replacing it with a small rad at the rear of the case.

The question is will a 120/140 rad be enough when combined with the 240?
Or is it worth breaking out the dremel and making the 200 fit?
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
post #2 of 6
Should be fine.
Ishimura
(21 items)
 
Silent Knight
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.6GHz ASRock Z77E-ITX eVGA GTX 1080 Ti Hybrid AMD Radeon R9 16GB DDR3-2400MHz  
Hard DriveHard DriveCoolingCooling
SanDisk Ultra II 960GB Toshiba X300 5TB Corsair H100i GTX eVGA Hybrid Water Cooler  
CoolingOSMonitorKeyboard
4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
PowerCaseMouseMouse Pad
eVGA SuperNOVA 750 G3 Define Nano S Logitech G502 Proteus Core PECHAM Gaming Mouse Pad XX-Large 
AudioAudioAudioAudio
Audioengine D1 DAC Mackie CR Series CR3 Audio-Technica ATH-M50 Sennheiser HD 598 
Audio
Sony XB950BT 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
CoolingCoolingOSPower
EK-FC7970 XSPC RS360 Windows 10 Pro 64-Bit Corsair TX750 
Case
NZXT Switch 810  
  hide details  
Reply
Ishimura
(21 items)
 
Silent Knight
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.6GHz ASRock Z77E-ITX eVGA GTX 1080 Ti Hybrid AMD Radeon R9 16GB DDR3-2400MHz  
Hard DriveHard DriveCoolingCooling
SanDisk Ultra II 960GB Toshiba X300 5TB Corsair H100i GTX eVGA Hybrid Water Cooler  
CoolingOSMonitorKeyboard
4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
PowerCaseMouseMouse Pad
eVGA SuperNOVA 750 G3 Define Nano S Logitech G502 Proteus Core PECHAM Gaming Mouse Pad XX-Large 
AudioAudioAudioAudio
Audioengine D1 DAC Mackie CR Series CR3 Audio-Technica ATH-M50 Sennheiser HD 598 
Audio
Sony XB950BT 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
CoolingCoolingOSPower
EK-FC7970 XSPC RS360 Windows 10 Pro 64-Bit Corsair TX750 
Case
NZXT Switch 810  
  hide details  
Reply
post #3 of 6
Thread Starter 
Is there a rule of thumb to apply?
Could I run just the 240?
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
post #4 of 6
Quote:
Originally Posted by iamgiGGlz View Post

Is there a rule of thumb to apply?
Could I run just the 240?

Everything I've read is that the rule of thumb is at least 120mm radiator per pice you are cooling. So a CPU and a GPU would be at least 240mm radiator coverage. But, the 7990 is a big heat generator, so I would go 240 for it alone, meaning 360mm total coverage for your CPU + GPU is more than enough.
post #5 of 6
Quote:
Originally Posted by iamgiGGlz View Post

Is there a rule of thumb to apply?
Could I run just the 240?

You can run 240 with GPU but the problem is the CPU will run hotter then stock air cooling. The GPU @ 70C is fine and probably cooler then stock but CPU running in the same loop will suffer. Also you have to keep in mind the water temps. Too high water temp can kill the pump.
Ishimura
(21 items)
 
Silent Knight
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.6GHz ASRock Z77E-ITX eVGA GTX 1080 Ti Hybrid AMD Radeon R9 16GB DDR3-2400MHz  
Hard DriveHard DriveCoolingCooling
SanDisk Ultra II 960GB Toshiba X300 5TB Corsair H100i GTX eVGA Hybrid Water Cooler  
CoolingOSMonitorKeyboard
4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
PowerCaseMouseMouse Pad
eVGA SuperNOVA 750 G3 Define Nano S Logitech G502 Proteus Core PECHAM Gaming Mouse Pad XX-Large 
AudioAudioAudioAudio
Audioengine D1 DAC Mackie CR Series CR3 Audio-Technica ATH-M50 Sennheiser HD 598 
Audio
Sony XB950BT 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
CoolingCoolingOSPower
EK-FC7970 XSPC RS360 Windows 10 Pro 64-Bit Corsair TX750 
Case
NZXT Switch 810  
  hide details  
Reply
Ishimura
(21 items)
 
Silent Knight
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.6GHz ASRock Z77E-ITX eVGA GTX 1080 Ti Hybrid AMD Radeon R9 16GB DDR3-2400MHz  
Hard DriveHard DriveCoolingCooling
SanDisk Ultra II 960GB Toshiba X300 5TB Corsair H100i GTX eVGA Hybrid Water Cooler  
CoolingOSMonitorKeyboard
4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
PowerCaseMouseMouse Pad
eVGA SuperNOVA 750 G3 Define Nano S Logitech G502 Proteus Core PECHAM Gaming Mouse Pad XX-Large 
AudioAudioAudioAudio
Audioengine D1 DAC Mackie CR Series CR3 Audio-Technica ATH-M50 Sennheiser HD 598 
Audio
Sony XB950BT 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
CoolingCoolingOSPower
EK-FC7970 XSPC RS360 Windows 10 Pro 64-Bit Corsair TX750 
Case
NZXT Switch 810  
  hide details  
Reply
post #6 of 6
Thread Starter 
Quote:
Originally Posted by ZealotKi11er View Post

You can run 240 with GPU but the problem is the CPU will run hotter then stock air cooling. The GPU @ 70C is fine and probably cooler then stock but CPU running in the same loop will suffer. Also you have to keep in mind the water temps. Too high water temp can kill the pump.

I figured as much about the cpu temps, but the pump issue never occurred to me. Thanks for the tip. I guess trying to take short cuts with this is just a dumb idea.
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
Vader
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 960 X58A-GD65 (MS-7522) Radeon HD 5850 Mushkin  
Hard DriveHard DriveOptical DriveCooling
Seagate 7200rpm Western Digital 7200rpm Samsung DVD-RW (dying) Coolermaster Hyper 212Plus 
CoolingOSMonitorKeyboard
Zalman ZMF-03 Windows 8 Consumer Preview Build 8250 x64 BenQ G2410HD Corsair Vengeance K90 
PowerCaseMouseMouse Pad
Thermaltake 650W Lian-Li PC-8NW (Black interior) Steelseries Xai Custom Flea-market job :) 
AudioAudioAudio
Asus Xonar DG Phillips SHP2700 Headphones Creative 2.1 Speakers 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › How little radiator area can I get away with?