Overclock.net › Forums › Cooling › Air Cooling › SilenX Ixtrema 120mm x 38mm fans = Over-rated?
New Posts  All Forums:Forum Nav:

SilenX Ixtrema 120mm x 38mm fans = Over-rated?

post #1 of 9
Thread Starter 
I've just finished some informal testing of the SilenX Ixtrema 120mm x 38mm fan, and have come up with some rather interesting observations.

Chief of these is that it doesn't seem to perform as well as you might assume because of the fan's size and its claimed 90CFM airflow stats. Testing it back to back with a Thermaltake Blue LED 120mm x 25mm fan (the non-Thunderblade version), the SilenX Ixtrema fan is poorer by almost eight degrees Celsius! I used my sig rig for testing, which has a lapped Ultra 120 Extreme as the heatsink; Orthos Small FFTs generated maximum heat for the CPU; ambient temperatures were actually slightly warmer while using the the Thermaltake fan, as well.

Another observation is that the SilenX is so much quieter than the Thermaltake. This is one aspect that I enjoy quite a bit. However, the SilenX doesn't seem to live up to the company's claim of having the most CFM for the lowest decibel rating. Not having an anenometer to measure airflow volume and pressure, of course, I can only go by observed temperature readings. SilenX got the quiet part right, but seem to deliver less than advertised when it comes to actual performance in terms of airflow + air pressure.

Eight degrees Celsius is a massive difference, especially given the slightly lower ambient temperature during the SilenX testing. I'm at a loss at how to explain the temperature disparity.

Could it be that the SilenX fans are simply over-rated?

Your thoughts and opinions are most welcome.
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
post #2 of 9
HardForum and XtremeSystem hate the Silenx. They have the same observation as you do. I was bashed over those 2 forums for asking about it
Mikey's Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1700X Asus ROG Crosshair VI Hero MSI GTX 1070 Gaming X G.SKILL RGB 3200Mhz CL14 16GB 
Hard DriveCoolingOSMonitor
Samsung 960 250GB Corsair H100i With 2 Corsair HD120 Windows 10 x64 Pro Samsung 28" 4K 
KeyboardPowerCaseMouse
Corsair K70 Seasonic Titanium 850W Corsair 570X Razor DeathAdder 
Mouse PadAudio
RadPadZ XT Creative HD Titanium 
  hide details  
Reply
Mikey's Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1700X Asus ROG Crosshair VI Hero MSI GTX 1070 Gaming X G.SKILL RGB 3200Mhz CL14 16GB 
Hard DriveCoolingOSMonitor
Samsung 960 250GB Corsair H100i With 2 Corsair HD120 Windows 10 x64 Pro Samsung 28" 4K 
KeyboardPowerCaseMouse
Corsair K70 Seasonic Titanium 850W Corsair 570X Razor DeathAdder 
Mouse PadAudio
RadPadZ XT Creative HD Titanium 
  hide details  
Reply
post #3 of 9
I hope you're wrong.
I ordered some from Newegg today and I'll probably get them Wednesday.
I got a 70CFM Rosewill sitting on my SI-128 and I'll be throwing one on to compare the differences.
2 OP pls nerf
(12 items)
 
  
CPUMotherboardGraphicsRAM
i5 6400 Skylake Asus Z170-E ATX Asus GTX 1060 6GB GeIL 8GB DDR4 3600 
Hard DriveHard DriveCoolingOS
Sandisk 480GB SSD Western Digital EZRX 3TB Cryorig H7 Windows 10 Pro x64 
PowerAudioAudioAudio
Silverstone 500w Gold Lepai LP-2020A+ AudioSource LS100 Polk Audio PSW111 
  hide details  
Reply
2 OP pls nerf
(12 items)
 
  
CPUMotherboardGraphicsRAM
i5 6400 Skylake Asus Z170-E ATX Asus GTX 1060 6GB GeIL 8GB DDR4 3600 
Hard DriveHard DriveCoolingOS
Sandisk 480GB SSD Western Digital EZRX 3TB Cryorig H7 Windows 10 Pro x64 
PowerAudioAudioAudio
Silverstone 500w Gold Lepai LP-2020A+ AudioSource LS100 Polk Audio PSW111 
  hide details  
Reply
post #4 of 9
Thread Starter 
You know what they say about custom PC construction: YMMV.

I was just stating what my observations were telling me.

@ ThePook: I hope that the SilenXs prove to be an improvement over your setup. Please add your observations to this thread when you're able to.

Thanks again!
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
post #5 of 9
Quote:
Originally Posted by txtmstrjoe View Post
You know what they say about custom PC construction: YMMV.

I was just stating what my observations were telling me.

@ ThePook: I hope that the SilenXs prove to be an improvement over your setup. Please add your observations to this thread when you're able to.

Thanks again!
No no, I don't mean your results are wrong, just hoping they actually are an improvement and you just have a variable you're not thinking about.

And I will be.
2 OP pls nerf
(12 items)
 
  
CPUMotherboardGraphicsRAM
i5 6400 Skylake Asus Z170-E ATX Asus GTX 1060 6GB GeIL 8GB DDR4 3600 
Hard DriveHard DriveCoolingOS
Sandisk 480GB SSD Western Digital EZRX 3TB Cryorig H7 Windows 10 Pro x64 
PowerAudioAudioAudio
Silverstone 500w Gold Lepai LP-2020A+ AudioSource LS100 Polk Audio PSW111 
  hide details  
Reply
2 OP pls nerf
(12 items)
 
  
CPUMotherboardGraphicsRAM
i5 6400 Skylake Asus Z170-E ATX Asus GTX 1060 6GB GeIL 8GB DDR4 3600 
Hard DriveHard DriveCoolingOS
Sandisk 480GB SSD Western Digital EZRX 3TB Cryorig H7 Windows 10 Pro x64 
PowerAudioAudioAudio
Silverstone 500w Gold Lepai LP-2020A+ AudioSource LS100 Polk Audio PSW111 
  hide details  
Reply
post #6 of 9
Thread Starter 
Quote:
Originally Posted by The Pook View Post
No no, I don't mean your results are wrong, just hoping they actually are an improvement and you just have a variable you're not thinking about.

And I will be.
Hehe. No worries, man. I didn't take it like that.

    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
post #7 of 9
I've had the reverse effect. My case temps were 27c, now they don't go above 25c. I went from an aerocool extreme turbine 89cfm to the 90cfm Silenx. I think the depth of the fan makes some kind of difference depending on where you use it. I'm thinking that they test it in a straight wind tunnel way and thats how they get results.
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
post #8 of 9
Thread Starter 
Quote:
Originally Posted by kennymester View Post
I've had the reverse effect. My case temps were 27c, now they don't go above 25c. I went from an aerocool extreme turbine 89cfm to the 90cfm Silenx. I think the depth of the fan makes some kind of difference depending on where you use it. I'm thinking that they test it in a straight wind tunnel way and thats how they get results.
That's the 120mm x 38mm SilenX, right?

You know what's funny too? Though I didn't use the Aerocool Extreme Turbine in these tests, I've found them to be superb fans. They don't have much rep, but except for the goofy chrome plating they've got on the blades I'd use them on my sig rig.

Thanks for sharing your observations.
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
  hide details  
Reply
post #9 of 9
My only gripe about the aerocool fans are that they are dust magnets and I can't quite get the dust off of mine. Oh also they are probably one of the brightest lit fans you can get. Their whole line of fans have great leds built into them.
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › SilenX Ixtrema 120mm x 38mm fans = Over-rated?