Overclock.net › Forums › Cooling › Air Cooling › Megahalems - Suggestions for 1xpush PWM fan
New Posts  All Forums:Forum Nav:

Megahalems - Suggestions for 1xpush PWM fan

post #1 of 7
Thread Starter 
I had 2 Scythe Kama FLEX PWM fans in push/pull, but for some reason whenever it got above 70% fan speeds (load speeds) the pull fan would create a loud turbine-esque noise. This noise was caused by air being pulled out of the Megahalems. I tested this by unmounting it, putting both fans at 100%, keeping the push mounted, and moving the pull into mounted position and away from it.

This makes me believe that a 1xpush fan is my only solution (Unless corrected otherwise).

Does anyone have any suggestions for a single PWM controlled high quality fan to act as a push fan? My mobo can run up to 2 amps off of the CPU header and the rest of my fans are powered from a fan controller. Also, I'm a fan of quiet setups, so I'll probably have whichever fan at lower RPMs other than when it rises in temps, so keep that in mind.

Thanks!
Edited by meeps - 7/29/11 at 4:46pm
post #2 of 7
Using a shroud with pull fan fixed that problem when I was using Megahalems.
Shinobi XL
(11 items)
 
Cosmos 2
(9 items)
 
Raven RV03
(8 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
  hide details  
Reply
Shinobi XL
(11 items)
 
Cosmos 2
(9 items)
 
Raven RV03
(8 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
  hide details  
Reply
post #3 of 7
Thread Starter 
Quote:
Originally Posted by mm67 View Post
Using a shroud with pull fan fixed that problem when I was using Megahalems.
Damn... Well I already sent back the fans and I just have my two rear exhausts on full blast, keeps my idles around 40-44C with 26C ambient. Loads get a little above 60C.

Also, where would I even find a pre-made shroud for this setup?
post #4 of 7
If noise didn't matter and it's PWM.. http://www.frozencpu.com/products/12...tl=g36c365s935

I have heard really good things about this Delta fan on heatsinks http://www.frozencpu.com/products/85...=g36c365s936#V

Good CFM to noise ratio PWM is sleeved and has a 6 year warranty. Maybe run two in push pull if money isn't an issue http://www.frozencpu.com/products/84...c365s936#blank

Just my .02

BTW, I run a single Scythe S-FLEX 1900 rpm fan on my Mega.

I see that you are running your i7 930 at stock clocks according to your sig and hitting above 60C. I'm assuming you have your cpu vcore on auto. Maybe try lowing your vcore and see where your temps are while testing stability. My i7 920 on auto ran around 1.27 volts on stock clocks. But, I was able to hit 3.6ghz with H/T on and Turbo enabled at a vcore of 1.22 volts and 22C ambient temp. Just a thought.
Edited by ep45-ds3l - 7/29/11 at 5:20pm
X99
(16 items)
 
  
CPUMotherboardGraphicsRAM
5820K @4.4ghz 1.25 volts ASUS X99 Deluxe ASUS Strix GTX 1080 Corsair Vengenace LPX 4x4 16GB 3000Mhz 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 250GB WD Black - WD Blue  LG WH14NS40 Blu Ray Burner Swiftech H240X 
OSMonitorKeyboardPower
Win 8.1 Pro x64 / Win 10 Pro x64 Acer XB270HU 27" IPS 144hz G-Sync Corsair K70 Cooler Master V1000 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe DeathAdder Chroma Corsair MM200 Wide Corsair Vengeance 1500 
  hide details  
Reply
X99
(16 items)
 
  
CPUMotherboardGraphicsRAM
5820K @4.4ghz 1.25 volts ASUS X99 Deluxe ASUS Strix GTX 1080 Corsair Vengenace LPX 4x4 16GB 3000Mhz 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 250GB WD Black - WD Blue  LG WH14NS40 Blu Ray Burner Swiftech H240X 
OSMonitorKeyboardPower
Win 8.1 Pro x64 / Win 10 Pro x64 Acer XB270HU 27" IPS 144hz G-Sync Corsair K70 Cooler Master V1000 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe DeathAdder Chroma Corsair MM200 Wide Corsair Vengeance 1500 
  hide details  
Reply
post #5 of 7
Quote:
Originally Posted by meeps View Post
Damn... Well I already sent back the fans and I just have my two rear exhausts on full blast, keeps my idles around 40-44C with 26C ambient. Loads get a little above 60C.

Also, where would I even find a pre-made shroud for this setup?
Gutted old fans make great shrouds.
Shinobi XL
(11 items)
 
Cosmos 2
(9 items)
 
Raven RV03
(8 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
  hide details  
Reply
Shinobi XL
(11 items)
 
Cosmos 2
(9 items)
 
Raven RV03
(8 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
  hide details  
Reply
post #6 of 7
I did a study on fans and the Megahalems. See item 1 of my sig.

Mightiest PWM fan I ever saw is this. Otherwise, the Blade Master does pretty well.
alpha updated
(19 items)
 
secundus
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790k Gigabyte GA-Z97X Gaming-7 Intel HD4600 Crucial Ballistix Sport Very Low Profile 8GB Ki... 
Hard DriveCoolingOSMonitor
Samsung 840 EVO 500GB Prolimatech Megahalems Rev. C Windows 8.1 Home Premium 64-bit Acer K242HL 
KeyboardPowerCaseMouse
Dell SK-8110 (PS/2) Seasonic X460 Fanless motherboard tray from CM ATCS 840 Logitech MX 1100 
Mouse PadAudio
Dell Creative SoundBlaster X-Fi MB3 
CPUMotherboardGraphicsRAM
i7 860 Gigabyte GA P55M UD2 ZOTAC/NVidia GTX 650 Ti 2GB 4x4GB G.Skill Ripjaws DDR3-1333 CAS9 
Hard DriveOptical DriveCoolingOS
Samsung 1TB Spinpoint F3 7200.12 Plextor 24x DVD burner Cooler Master Hyper Z600R Win7 64-bit 
MonitorKeyboardPowerCase
Dell E207WFP 20-inch flat panel Logitech Wireless 510 Seasonic X-650 fully modular 80+ Gold Lian Li PC-7FN 
MouseMouse PadAudio
Wireless Mouse WACOM Intuos 3 generic 
  hide details  
Reply
alpha updated
(19 items)
 
secundus
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790k Gigabyte GA-Z97X Gaming-7 Intel HD4600 Crucial Ballistix Sport Very Low Profile 8GB Ki... 
Hard DriveCoolingOSMonitor
Samsung 840 EVO 500GB Prolimatech Megahalems Rev. C Windows 8.1 Home Premium 64-bit Acer K242HL 
KeyboardPowerCaseMouse
Dell SK-8110 (PS/2) Seasonic X460 Fanless motherboard tray from CM ATCS 840 Logitech MX 1100 
Mouse PadAudio
Dell Creative SoundBlaster X-Fi MB3 
CPUMotherboardGraphicsRAM
i7 860 Gigabyte GA P55M UD2 ZOTAC/NVidia GTX 650 Ti 2GB 4x4GB G.Skill Ripjaws DDR3-1333 CAS9 
Hard DriveOptical DriveCoolingOS
Samsung 1TB Spinpoint F3 7200.12 Plextor 24x DVD burner Cooler Master Hyper Z600R Win7 64-bit 
MonitorKeyboardPowerCase
Dell E207WFP 20-inch flat panel Logitech Wireless 510 Seasonic X-650 fully modular 80+ Gold Lian Li PC-7FN 
MouseMouse PadAudio
Wireless Mouse WACOM Intuos 3 generic 
  hide details  
Reply
post #7 of 7
Thread Starter 
Quote:
Originally Posted by mm67 View Post
Gutted old fans make great shrouds.
Hmm, innovative!

Quote:
Originally Posted by ep45-ds3l View Post
If noise didn't matter and it's PWM.. http://www.frozencpu.com/products/12...tl=g36c365s935

I have heard really good things about this Delta fan on heatsinks http://www.frozencpu.com/products/85...=g36c365s936#V

Good CFM to noise ratio PWM is sleeved and has a 6 year warranty. Maybe run two in push pull if money isn't an issue http://www.frozencpu.com/products/84...c365s936#blank

Just my .02

BTW, I run a single Scythe S-FLEX 1900 rpm fan on my Mega.

I see that you are running your i7 930 at stock clocks according to your sig and hitting above 60C. I'm assuming you have your cpu vcore on auto. Maybe try lowing your vcore and see where your temps are while testing stability. My i7 920 on auto ran around 1.27 volts on stock clocks. But, I was able to hit 3.6ghz with H/T on and Turbo enabled at a vcore of 1.22 volts and 22C ambient temp. Just a thought.
Just to clarify, those temps are without any fan on my Megahalems. The only cooling it was supplied with are the rear exhaust of my case and the another case exhaust right above it, both are running at 1800RPMs. When I had one of my Kama FLEX PWM fans running at 100% it would bring idles around 32-36C with 26C ambient temps, loads would be higher 50C's. But it definitely is on auto and I plan to adjust the vcore once I get a fan onto it, OCing's been my plan all along . Also, thanks for the links, I'll look into them!
Quote:
Originally Posted by ehume View Post
I did a study on fans and the Megahalems. See item 1 of my sig.

Mightiest PWM fan I ever saw is this. Otherwise, the Blade Master does pretty well.
I wonder why the wires are so long !
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › Megahalems - Suggestions for 1xpush PWM fan