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Dark Base 900 and fans vibrations

post #1 of 2
Thread Starter 
Hi there, I have a problem with my case and fans vibrations. I'm out of ideas, maybe you can help?

So, I've got Be Quiet's Dark Base 900:
  • three 140mm preinstalled silent wings 3 (2 front + 1 rear), 1000 RPM max,
  • one 140mm silent wings 3 installed in front (by me, using rubber "screws"), 1000 RPM max,
  • thermalright TY147A on a macho rev B heatsink (with four rubber small antivibration pads on corners), 1350 RPM max.

All fans are PWM-controlled. The problem starts when some or all of them are working with > 70% RPM (i.e. 700 RPM for case fans and 1000RPM for CPU fan).
The case is starting to vibrate. I can tell that there's no main-guilty fan, all of them are creating some vibrations. Some more, some less.

It's really nothing big, it's not visible, but audible (very low, quiet hum? buzz? tough to describe; I don't think you can hear it normally, by day, unless 5 cm near the top panel). It doesn't bother to be honest, but my OCD is strong, oh it's strong:)

Now the question: is it normal? Or how normal is this? Is it possible to completely eliminate some slight vibrations with 6 fans (5 + PSU)? Should I be worried or just give up?

Please, help:)
post #2 of 2
Use rubber washers/pads between the case and the fans to dampen the vibrations.
 
BitoHeaven
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BitoHeaven
(16 items)
 
Cigar ATX PC
(14 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 4770k @ 4.5GHz Asus Maximus VI Gene Gigabyte R9 290 @ 1160MHz/1350MHz Gigabyte R9 290 @ 1160MHz/1350MHz 
RAMHard DriveHard DriveOptical Drive
G.Skill Trident X 2X8GB DDR3 2400MHz Samsung 840 PRO 256GB  Seagate Barracuda 7200.14 3TB SATA III 6Gb/s 64... Pioneer Blu-ray Burner 
CoolingOSMonitorKeyboard
Liquid Single Loop Triple Radiators Win 7 SP1 Professional x64bit  Samsung SynchMaster 24" Widescreen 1200p TFT-LC... Logitech G15 
PowerCaseMouseMouse Pad
EVGA SuperNOVA G2 1300w 80+ Gold Fully Modular  Fractal Design Arc Midi R2 Microsoft Sidewinder X5 Allsop Redmond Mouse Pad 
Audio
Cambridge Soundworks 5.1 
CPUMotherboardGraphicsRAM
Intel Core i5-3570K @ 4.6GHz ASRock Z77E-ITX mITX  Sapphire HD 7990 @ 1090MHz/1600MHz G.SKILL Ripjaws 2X4GB DDR3-1600 @ 1866MHz 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD 128GB mSATA SATA III 6GB  Seagate Barracuda 7200.12 1TB SATA II 32MB 7200RPM LG DVD R/W SATA with LightScribe Corsair Cooling Hydro Series H100 
OSMonitorKeyboardPower
Win 7 Professional x64bit Samsung 52" 1080p 60Hz LCD Logitech Wireless K330 Corsair AX850 Gold Fully Modular 
CaseMouseMouse PadAudio
BitFenix Prodigy Mini-ATX Black  Logitech Wireless M215 Corsair Vengeance MM200 Yamaha RX-V681 & PSB/Polk Audio 5.1 
CPUMotherboardGraphicsRAM
AMD Athlon II X4 640 ASRock N68C-GS NVIDIA 6600GT G. Skill Ripjaws DDR3 1600MHz 
Hard DriveOptical DriveCoolingOS
WD Caviar Blue 500GB 16MB Cache 7200RPM LG Optical Drive Thermaltake Max Orb Windows 7 
MonitorKeyboardPowerCase
Viewsonic 19” Flatscreen CRT Gigabyte GK-K6800 103  Thermaltake TR2 600W Cigar Boxes 
MouseMouse Pad
Zalman ZM-M300 Corsair Vengeance MM200 
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