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Pump Noise (How much is too much?) Zalman LQ320

post #1 of 4
Thread Starter 
Hello
I am new to liquid cooling, and I have installed a Zalman LQ-320 on my AMD FX-8320. I am pleased with the results (the stock fan sounded like a rocket), but I am wondering about pump noise. When the computer is at a low-temp state where the fans and PSU are very quiet I can hear a noise coming from the pump area.
Is this something I should be worried about, as the noise isn't noticeable once I start a game or do something requiring any type of power. The unit seems to be functioning well, temps under load (such as BF3 Ultra settings) max out at 40 C. I overclocked to 4.7 GHz and temps got just above 70 C (seems high, but I don't know) under full-load stability test. Zalman has said that I can RMA, but I want to know if this is concerning enough to warrant the time, money, and effort for an RMA on an otherwise good unit. Maybe the noise is normal? Thank you in advance for you input.


One
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One
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AMD K15 GA-970A-UD3 NVIDIA GeForce GTX 660 Ti G.Skill RipjawsX DDR3-1866 
Hard DriveHard DriveHard DriveCooling
Samsung 840 Series SSD Hitachi 7200 RPM 3.5" Western Digital Red Zalman LQ320 
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Windows 8 x64 Asus 24" LED Backlit 2ms Ultra 1000w Modular Ultra Full Tower 
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post #2 of 4
What kind of noise is it? if its a grinding noise then I would RMA but if its just a noisy pump under load then that's what you get sometimes particularly with sealed water-cooling units, I know I used to have an H80 which was noisy at high speed.
Backbreaker
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BRUTALIS
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I7 3930K @4.8 RAMPAGE IV EXTREME Gigabyte GTX 1080 G1 Gaming  16 GB GSKILL RIPJAW Z 2133 
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256gb Samsung 840 pro 1 X Samsung 2tb HDD OCZ Vertex 2 60GB OCZ Vector 128GB 
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XSPC Raystorm Copper edition  XSPC RIVE Chipset and VRM block  3 X XSPC RAZOR Titan Blocks and Backplates  2 X Alphacool D5 pumps  
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Bitspower Dual pump Top  2 X Alphacool UT60 480 Radiators  1 X Alphacool XT45 240 Radiator  Phobya Balancer 250 Black Nickel  
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12 GB CORSAIR DOMINATOR GT 2000MHZ TRIPLE CHANNEL OCZ VERTEX2 60GB and Samsung 2tb HDD LG BLURAY BURNER XSPC DUAL BAY LAING D5 PUMP RES COMBO 
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Backbreaker
(25 items)
 
BRUTALIS
(19 items)
 
 
CPUMotherboardGraphicsRAM
I7 3930K @4.8 RAMPAGE IV EXTREME Gigabyte GTX 1080 G1 Gaming  16 GB GSKILL RIPJAW Z 2133 
Hard DriveHard DriveHard DriveHard Drive
256gb Samsung 840 pro 1 X Samsung 2tb HDD OCZ Vertex 2 60GB OCZ Vector 128GB 
CoolingCoolingCoolingCooling
XSPC Raystorm Copper edition  XSPC RIVE Chipset and VRM block  3 X XSPC RAZOR Titan Blocks and Backplates  2 X Alphacool D5 pumps  
CoolingCoolingCoolingCooling
Bitspower Dual pump Top  2 X Alphacool UT60 480 Radiators  1 X Alphacool XT45 240 Radiator  Phobya Balancer 250 Black Nickel  
OSMonitorKeyboardPower
Windows 7 ultimate 64 bit Acer X34 Predator CORSAIR K90 VENGEANCE  CORSAIR AX1500i 
CaseMouseMouse PadAudio
CORSAIR 900D Razer Deathadder black edition  Razer Goliathus XL ROG Xonar Phoebus 
Audio
Sennheiser PC363D  
CPUMotherboardGraphicsGraphics
I7 980X @ 4.5Ghz - 1.36 Vcore ASUS RAMPAGE EXTREME III EVGA GTX TITAN EVGA GTX TITAN 
RAMHard DriveOptical DriveCooling
12 GB CORSAIR DOMINATOR GT 2000MHZ TRIPLE CHANNEL OCZ VERTEX2 60GB and Samsung 2tb HDD LG BLURAY BURNER XSPC DUAL BAY LAING D5 PUMP RES COMBO 
CoolingCoolingOSMonitor
XSPC RAYSTORM COPPER CPU BLOCK BLACK ICE STEALTH 240 RAD WINDOWS 7 64BIT ULTIMATE ASUS VG278h 120Hz 
KeyboardPowerCaseMouse
CORSAIR K90 VENGEANCE  CORSAIR AX1200 CORSAIR GRAPHITE 600T WHITE RAZER DEATHADDER BLACK EDITION 
Mouse PadAudioOther
RAZER GOLIATHUS XL SENNHEISER PC360 G4ME ROG ASUS XONAR PHOEBUS 
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post #3 of 4
Thread Starter 
It is kind of a "chugging" noise, think small 'plasticky' engine but without the combustion, I guess. Or a similar example could be a rattling or vibration sound, but I have checked in the case and nothing seems to be loose or vibrating, and the sound is def. coming from the processor area (pump). It is only really noticeable in the first hour after booting, when air temps in the room are cool and the computer components are cold. Then, when the fans start to speed up, they drown out the rattling noise.
Later today, I will be removing the board from the case to ensure that the pump is still secured to the board and processor properly. One of the screws seems to be a bit loose, which in the very least is causing some cooling loss.
One
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD K15 GA-970A-UD3 NVIDIA GeForce GTX 660 Ti G.Skill RipjawsX DDR3-1866 
Hard DriveHard DriveHard DriveCooling
Samsung 840 Series SSD Hitachi 7200 RPM 3.5" Western Digital Red Zalman LQ320 
OSMonitorPowerCase
Windows 8 x64 Asus 24" LED Backlit 2ms Ultra 1000w Modular Ultra Full Tower 
MouseMouse PadAudio
Logitch MX 518 Rosewill Gaming Pad Creative SB Fatality Champion 
  hide details  
Reply
One
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD K15 GA-970A-UD3 NVIDIA GeForce GTX 660 Ti G.Skill RipjawsX DDR3-1866 
Hard DriveHard DriveHard DriveCooling
Samsung 840 Series SSD Hitachi 7200 RPM 3.5" Western Digital Red Zalman LQ320 
OSMonitorPowerCase
Windows 8 x64 Asus 24" LED Backlit 2ms Ultra 1000w Modular Ultra Full Tower 
MouseMouse PadAudio
Logitch MX 518 Rosewill Gaming Pad Creative SB Fatality Champion 
  hide details  
Reply
post #4 of 4
I just got the LQ-310 and have the same noise. I suspect this is just the sounds of normal pump activity. I had the Corsair H80 and remember having similar aural concerns. Now I'm running a custom loop with a Swiftech pump and though its quieter, I can still make out a similar rattling sound.

===============
been fiddling with my LQ-310 and its rattling is louder than my H80, and of course the Switftech. I'm seriously considering an RMA, or at least asking Zalman about this.
Edited by ooostephen - 9/26/13 at 10:40am
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