Akasa Apache - PWM?
- Thread starter craigxt22
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i think the PWM is just the connection type (3 pin) and should work with your psu
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sorry got confused 
Soldato
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It is a more efficient power switching technology than direct voltage adjustement. The fourth pin is used to carry the additional signal required to facilitate it, but is not required - any PWN fan will work off of a three pin header.
If you are feeding the fan directly from the PSU via an adapter from a molex connector, you may need to find one which will be compatible with a 4pin connector, as some are designed to fit 3 pins only.
If you are feeding the fan directly from the PSU via an adapter from a molex connector, you may need to find one which will be compatible with a 4pin connector, as some are designed to fit 3 pins only.
Nice ok.
I'm getting confused though, all my current fans are connected directly to the PSU.
Is the Apache supposed to be connected to the motherboard then? I have a socket named "SYS_FAN1". -Would it go there?
You probably could but it'd be better on CPU-FAN if it's available.
You can also buy Molex to 3pin header adapters which will allow direct PSU powering but not control without the PWM signal from your motherboard.
If you already have a fan attached to your CPU fan header you can grab yourself one if the Akasa PWM splitters.
Lots of options really.
You can also buy Molex to 3pin header adapters which will allow direct PSU powering but not control without the PWM signal from your motherboard.
If you already have a fan attached to your CPU fan header you can grab yourself one if the Akasa PWM splitters.
Lots of options really.
Right, just tried it in "SYS_FAN1" booted up and it's not working. It just twitches
Does it need to be configured or something?
I bought the Akasa Apache fan and tried to install it yesterday, once plugged into SYS_FAN1 (I believe) it also twitches...
I have no more headers to attach the fan to.
What software would you actually use to control the fans? I'll try again in a minute.
I bought the Akasa Apache fan and tried to install it yesterday, once plugged into SYS_FAN1 (I believe) it also twitches...
I have no more headers to attach the fan to.
Glad it's not just me then lol
I'll probably try using one of them if I can't figure out how to use it from the motherboard!
speed fan or easytune have fan control
I have a spare fan header on my mobo and it just twitches with a fan attached to it.
Have that splitter instead for the push/pull and the top exhaust which are all PWM controlled.
Stock corsair fans are on the 2x3 pin headers on mobo that work.
I have a spare fan header on my mobo and it just twitches with a fan attached to it.
Have that splitter instead for the push/pull and the top exhaust which are all PWM controlled.
Stock corsair fans are on the 2x3 pin headers on mobo that work.
I might give that splitter a go. I bought two Akasa Apache fans. I installed one as exhaust by the I/O panel and the other as an intake to complement two other existing fans. I connected the intake to a SYS_FAN2 (3pin)header as described above and it twitches whilst the exhaust is connected to a 4pin header and that works very well. I switched fans around to check both worked, which they did.
I also installed 2x 500GB in RAID 1 and the computer seems so much louder than before which is completely the opposite of what I wanted.... need to investigate tonight
With 2 extra fans installed CPU idle has dropped 4C from 36C to ~32C. Do you guys think that is a significant drop in temp?
I also installed 2x 500GB in RAID 1 and the computer seems so much louder than before which is completely the opposite of what I wanted.... need to investigate tonight
With 2 extra fans installed CPU idle has dropped 4C from 36C to ~32C. Do you guys think that is a significant drop in temp?
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Well the GA-EP45-UD3LR manual clearly states that the SYS_FAN2 header is 5V so explains your twitch coldfused. My motherboard Gigabyte EX58-UD5 is the same. I assume 5v supply is for small chipset cooling fans.
As for the OP check your manual. Not sure how widespread this 5V sys fan thing is.
As for the OP check your manual. Not sure how widespread this 5V sys fan thing is.
Yes you're right, its SYS_FAN2 is 5V. Damn... it had to be the one with the speed control...
OP- What the hell is Pin 4 reverse? Have they spelt 'reserved' wrong? Never seen that before. Anyway sounds like you can't use it.
Coldfused -- All is not lost. You can DIY your fan wiring to get it's 12v from another source and use the PWM control from the SYS_FAN2 port if you desire. Bit fiddly but a solution. Or make your own PWM controller. http://www.overclockers.com/pwm-fan-controller
Coldfused -- All is not lost. You can DIY your fan wiring to get it's 12v from another source and use the PWM control from the SYS_FAN2 port if you desire. Bit fiddly but a solution. Or make your own PWM controller. http://www.overclockers.com/pwm-fan-controller