Fanige Queries

L

luksta

Active member
Morning boys and girls and things inbetween,

I've just added a new fan to my Coolmaster CM90 ii case because my computer room gets stupidly hot in the evening when I use it (the sun sets facing the room so in summer it's a sauna).

The fan is an Akasa AK174CB-4BLB and have made my computer outrageously noisey compared to what it was. The fan seems to be running at a constant high RPM even when my pc is idle. I've checked in the Bios and the Q Fan control is enabled and set to standard.

The fan speeds are:
CPU Fan 820rpm
PWR Fan 1140rpm
CHA Fan1 2380rmp (the problem child)
CHA Fan2 800rpm

Anyone got any idea why it would be working over time like that and how to solve the problem?

My other question is on push pull setups. I've got the Coolit ECO ALC and wanted to add another fan to that but can't work out whether the standard fan on it which is on the outside is sucking air in or out. I'd rather not have to take it apart to find out in fear of breaking it into tiny pieces, though I realise I'll have to in order to fit the other fan.

Just another quick question while I'm here already using your valuable time. Would it be a good idea to have the push/pull sucking air into the system, the case fans sucking air in, and the 2 fans at the top kicking it all out again?

Thanks for any help guys
 
tom_gr7

tom_gr7

Life Serving
luksta said:
Morning boys and girls and things inbetween,

I've just added a new fan to my Coolmaster CM90 ii case because my computer room gets stupidly hot in the evening when I use it (the sun sets facing the room so in summer it's a sauna).

The fan is an Akasa AK174CB-4BLB and have made my computer outrageously noisey compared to what it was. The fan seems to be running at a constant high RPM even when my pc is idle. I've checked in the Bios and the Q Fan control is enabled and set to standard.

The fan speeds are:
CPU Fan 820rpm
PWR Fan 1140rpm
CHA Fan1 2380rmp (the problem child)
CHA Fan2 800rpm

Anyone got any idea why it would be working over time like that and how to solve the problem?

My other question is on push pull setups. I've got the Coolit ECO ALC and wanted to add another fan to that but can't work out whether the standard fan on it which is on the outside is sucking air in or out. I'd rather not have to take it apart to find out in fear of breaking it into tiny pieces, though I realise I'll have to in order to fit the other fan.

Just another quick question while I'm here already using your valuable time. Would it be a good idea to have the push/pull sucking air into the system, the case fans sucking air in, and the 2 fans at the top kicking it all out again?

Thanks for any help guys
Click to expand...

With reference to the push pull, it will be set so air is sucked out of the case. ie through the rad then out the back. It would be my advice to keep it this way. The main reason being that on the back of the case im sure there will be no dust filter on it. So your rad will got clogged up with dust pretty quick.
If you want to create a push/pull you will need two of the same fans. I'd recommend two akasa apache blacks or two akasa vipers (what I use). You will also need a PWM Y cable to connect both the fans to the motherboard header. Also four screws for the extra fan. Its actully really easy to do the push/pull thing.

If you want any more advice on this have a look at my pics in the show of your pc section, post back here or send me a message.

Hope this helps.
 
tom_gr7

tom_gr7

Life Serving
luksta said:
Thanks Tom that's appreciated. I'll look into the push/pull a bit more in depth.
Click to expand...

no worries mate,

I thought it might be interesting for you, so here's the links of what i used for my push/pull

Akasa vipers - http://www.overclockers.co.uk/showproduct.php?prodid=FG-059-AK

PWM Y Cable - http://www.overclockers.co.uk/showproduct.php?prodid=CB-031-AK

SCREWS - http://www.maplin.co.uk/thumbscrew-for-pc-case-x-50-37605

Reference the thumb screws these are the exact screws I used, they have the exact same tread size 6-32unc (american) as the Coolit ones. All you have to do is slightly file down inside the fan, so the screw head sits flush. if that makes sense.

Hope this helps in your exciting quest for a push/pull config.
 
L

luksta

Active member
Just in case anyone else is having problems with this.

The fan is running over time becasue it's a 3pin connecter. The MoBo will only regulate the fan speed if it's a 4pin PWM connection. Or so i believe.
 
Teaz

Teaz

Godlike
they can be adjusted with programs to lower its speed with programs like speedfan and it should be regulated by the cpu thermal regulator if its plugged into the 4pin cpu-fan header. it should be on by default.

if not a speed adaptor can be done to lower speeds.
 
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