Overclock.net › Forums › Cooling › Air Cooling › Case Fans Question
New Posts  All Forums:Forum Nav:

Case Fans Question - Page 2

post #11 of 22
try connecting your fans directly into your psu, you won't be able to control fan speeds, but it is safer on your mobo.
post #12 of 22
Thread Starter 
Quote:
Originally Posted by LMN View Post
try connecting your fans directly into your psu, you won't be able to control fan speeds, but it is safer on your mobo.
The fans must be PWM again if I connect them to the PSU?
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
post #13 of 22
Quote:
Originally Posted by Aardwolf View Post
The fans must be PWM again if I connect them to the PSU?
you can use adapters to connect PSU cables to your PWM fans, just did a quick google search, something like this:


again, no speed control for this setup, the fans will run at max speeds always. but advantage here is that you offload power from the motherboard.

hope this helps.
post #14 of 22
Quote:
Originally Posted by Mr.Scott View Post
Not advisable. Most mobo headers can only handle a max of 1 amp draw before you cook it.
no way...

I'm running 2 CM R4's off one header and that pulls over 8W!
    
CPUMotherboardGraphicsRAM
|i7 2600K| |EVGA P67 SLI| |N560GTX-Ti Hawk| Waiting on Sandy Bridge :) 
Hard DriveOSMonitorPower
Waiting on Sandy Bridge :) |Windows 7 Ulitmate 64-Bit| |Hanns-G HZ281HPB 1920x1200| |Silverstone Strider Plus 850W| 
Case
|SilverStone RV03| ETA: 04/05/11 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
|i7 2600K| |EVGA P67 SLI| |N560GTX-Ti Hawk| Waiting on Sandy Bridge :) 
Hard DriveOSMonitorPower
Waiting on Sandy Bridge :) |Windows 7 Ulitmate 64-Bit| |Hanns-G HZ281HPB 1920x1200| |Silverstone Strider Plus 850W| 
Case
|SilverStone RV03| ETA: 04/05/11 
  hide details  
Reply
post #15 of 22
"The main feature that makes these fans stand out from the competition is the cabling. Yes folks the fan's cables are what are interesting here; this is what you shelled out for. These fans don't use your typical 3pin connectors but the 4pin PWM headers. They also have a 4pin female connector (For daisy chaining) and a 3pin fan speed monitoring header. This PWM controller allows your fans (maximum of 5) to be individually controlled by your bios keeping your system cool while keeping the noise level low".

"Also, the daisy chaining option means that all this can be done using just one 4pin PWM socket on your motherboard. AC recommend you use one of their CPU coolers, stick on a PWM fan and begin the daisy chain from there."

http://www.xsreviews.co.uk/reviews/m...ing-pwm-fans/3

I have been using 5 of the AF 12025 PWM fans daisy chained off my cpu header(M2N32-sli) for more than 2 years.

Good luck

Gyro
Edited by Gyro - 1/4/11 at 7:34am
My System
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Ph IIx4 955 @ 3.2 Asus M2N32-sli dlx Asus GTX 460 1gb DirectCU MSI GTX 460 1gb Cyclone 
RAMHard DriveOptical DriveOS
4x2gb OCZ ddr2 1066 plats seagate 320gb sata lg supermulti dvd WIN 7 64 
MonitorKeyboardPowerCase
acer p221w ms SS ST75F-P 750w CM 690modded w/KazeMaster pro 
Mouse
ms intellimouse explorer3.0 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Ph IIx4 955 @ 3.2 Asus M2N32-sli dlx Asus GTX 460 1gb DirectCU MSI GTX 460 1gb Cyclone 
RAMHard DriveOptical DriveOS
4x2gb OCZ ddr2 1066 plats seagate 320gb sata lg supermulti dvd WIN 7 64 
MonitorKeyboardPowerCase
acer p221w ms SS ST75F-P 750w CM 690modded w/KazeMaster pro 
Mouse
ms intellimouse explorer3.0 
  hide details  
Reply
post #16 of 22
Quote:
Originally Posted by BKsMassive View Post
no way...

I'm running 2 CM R4's off one header and that pulls over 8W!
8 Watts is 0.67 Amps at 12 Volts.

Gigabyte boards have a setting in BIOS that allows you to chose between Voltage and PWM automatic control of your fans. The cpu fan header responds to the temps in your cpu. The SYS_FAN2 header generally responds to temps in your chipset. These two should have 4-pin connectors. SYS_FAN1 generally is a fixed voltage, and has a three-pin connector.

I have accidentally had two 0.6 Amp fans on the same cpu fan header. Even with startup surge the mb was OK.

PWM means you can power fans from the PSU via Molex and get the speed control signal from the MB. Look at this. Works with three fans. Not bad for $4.

The Arctic Cooling seem to be excellent and quiet case fans, especially the cage type fans. There are PWM versions. My problem with the cage types is that they can only be used for exhaust, and you will need a (some) intake fan(s). For intake and exhaust case fans there is a large variety of voltage controlled fans available, fewer PWM fans. Decent examples are this, this, and this.
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 #17 of 22
Thread Starter 
Quote:
Originally Posted by ehume View Post
8 Watts is 0.67 Amps at 12 Volts.

Gigabyte boards have a setting in BIOS that allows you to chose between Voltage and PWM automatic control of your fans. The cpu fan header responds to the temps in your cpu. The SYS_FAN2 header generally responds to temps in your chipset. These two should have 4-pin connectors. SYS_FAN1 generally is a fixed voltage, and has a three-pin connector.

I have accidentally had two 0.6 Amp fans on the same cpu fan header. Even with startup surge the mb was OK.

PWM means you can power fans from the PSU via Molex and get the speed control signal from the MB. Look at this. Works with three fans. Not bad for $4.

The Arctic Cooling seem to be excellent and quiet case fans, especially the cage type fans. There are PWM versions. My problem with the cage types is that they can only be used for exhaust, and you will need a (some) intake fan(s). For intake and exhaust case fans there is a large variety of voltage controlled fans available, fewer PWM fans. Decent examples are this, this, and this.
ok I think I will use this cable and 4 PWM fans for my case, but where to connect the 3 pin cable: PWR_FAN connector or SYS_FAN? (I have 2 SYS_FAN connectors one is 3 pin and one is 4 pin, the PWR_FAN is also 3 pin)
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
post #18 of 22
Thread Starter 
I have one connector from the PSU, can I use it for something?



P.S. Sry for the bad quality, it's pic from my phone
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
Lyralei
(12 items)
 
  
CPUMotherboardGraphicsGraphics
i7-3770 GA-Z77-D3H R9 280X R9 280X 
RAMHard DriveHard DriveHard Drive
CORSAIR 2x4 GB Vengeance DDR3 Corsair Force 3 Kingston Hitachi 
Hard DriveCoolingOSMonitor
WD Blue Arctic Cooling Freezer 13 Windows 7 Proffesional NEC AccuSync LCD 72VM 
  hide details  
Reply
post #19 of 22
800D Beast mode
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4770k asus sabertooth Z87 Nvidia 770  Corsair Vengance 8gb 1600 
Hard DriveCoolingOSMonitor
Intel 120 ssd,Baracuda 500,seagate 320,Caviar b... Custom loop Windows7 x86 64bit Samsung 32 inch smart led 
KeyboardPowerCaseMouse
G15 Thermaltake Black Widow 850 Obsidian 800D G500 
  hide details  
Reply
800D Beast mode
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4770k asus sabertooth Z87 Nvidia 770  Corsair Vengance 8gb 1600 
Hard DriveCoolingOSMonitor
Intel 120 ssd,Baracuda 500,seagate 320,Caviar b... Custom loop Windows7 x86 64bit Samsung 32 inch smart led 
KeyboardPowerCaseMouse
G15 Thermaltake Black Widow 850 Obsidian 800D G500 
  hide details  
Reply
post #20 of 22
Using the cable ehume linked you are going to need 2 of them because they only support 3 fans.

The AC fans have this built in and you don't have to wonder where to connect them.Just plug the first fan into the PWM cpu header and connect the second fan to it and the third fan to the second fan ect,ect...

If your cpu PWM fan is different than the ones you are getting,just plug the sensor plug from one of the fans in chain to sys fan 1 header for rpm detection.
As they are the same fan you only need one rpm sensor plugged in.
As all of the same fans in chain will be running at the same speed.

You are completly safe using the four fans you linked off of the cpu header.
That is the whole purpose of the AC PWM PST(power sharing technology).

Gyro
My System
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Ph IIx4 955 @ 3.2 Asus M2N32-sli dlx Asus GTX 460 1gb DirectCU MSI GTX 460 1gb Cyclone 
RAMHard DriveOptical DriveOS
4x2gb OCZ ddr2 1066 plats seagate 320gb sata lg supermulti dvd WIN 7 64 
MonitorKeyboardPowerCase
acer p221w ms SS ST75F-P 750w CM 690modded w/KazeMaster pro 
Mouse
ms intellimouse explorer3.0 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Ph IIx4 955 @ 3.2 Asus M2N32-sli dlx Asus GTX 460 1gb DirectCU MSI GTX 460 1gb Cyclone 
RAMHard DriveOptical DriveOS
4x2gb OCZ ddr2 1066 plats seagate 320gb sata lg supermulti dvd WIN 7 64 
MonitorKeyboardPowerCase
acer p221w ms SS ST75F-P 750w CM 690modded w/KazeMaster pro 
Mouse
ms intellimouse explorer3.0 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › Case Fans Question