reassurance wanted

[granddad]

Another beginner I'm afraid, and planning to build a water cooled rig in a TJ07 case with a 480 rad in the base section.  I know the rad will fit, if I pick the right one, and am told that it is okay to instal a PSU next to it.  But I am concerned that the PSU will block airflow through the base compartment and reduce cooling efficiency.  I have seen lots of case pictures with a full length rad so people must be doing it - am I worrying about nothing?

[Elbstrand]

Depends if you got some space between PSU and radiator, but the overall airflow shouldn't be reduced by the PSU. Air doesn't need to travel in straight lines.

[granddad]

^{Thanks, that's that one sorted.  Am I allowed another question in the same area - what is the received wisdom on mounting radiator fans: suck or blow?}

[Ghost]

^{Thanks, that's that one sorted.  Am I allowed another question in the same area - what is the received wisdom on mounting radiator fans: suck or blow?}

It makes little difference performance wise. Pull is recommended because its easier to clean dust from the rads

[Elbstrand]

It makes little difference performance wise. Pull is recommended because its easier to clean dust from the rads

 

Yes but also depends on the fans a little bit. Noiseblocker eLoops for instance can't really be mounted in pull without making them noisy. Also some fans in my experience are straight out better in on or the other config.

 

But yes, as a general rule, go with pull if possible.

 

 

PS. @granddad: Since there is no specific title and there isn't much of a discussion going, ask whatever and as much as you want :)

[granddad]

_{Gentlemen, thanks for the information and the invitation.  As I have touched on fans, what is the best way to power and control the large number of fans a water cooling  PC encourages.  One can only plug so many into a MoBo header!}

[airdeano]

easiest way to control a large amount of fans is from the PSU directly. you can

buy the needed "quietness" and RPM and power them via 12v Molex/SATA power.

even using voltage reducers from 12-volts to XX-volts. no worries about burned out

controllers, not enough wattage control or controller failures, plus less wiring to

"manage". although i use (seldom) mobo fan headers some boards feature control,

no control, or have limited voltage to supply to the fans. something else to burn out

and with enough fan header usage, the mobo will look "wooly" from all the connections.

keep it simple and it'll usually work and efficiently, too.

 

airdeano

[Shyxlol]

Asus motherboards have their AI suite which allows nice voltage control and they support up to 8-10 fans per header. So you could just use a splitter PCB or those phobya 1-to-9 3-pin cables if you have an Asus motherboard.

[notenoughtv]

Asus motherboards have their AI suite which allows nice voltage control and they support up to 8-10 fans per header. So you could just use a splitter PCB or those phobya 1-to-9 3-pin cables if you have an Asus motherboard.

Does it really support so many fans per header? Where can I see this information?

[Shyxlol]

Does it really support so many fans per header? Where can I see this information?

 

Simply ask their support? It's up to 4 Amps per header and safety shutdown at 8 Amps. That's 24-48 Watts. Most fans are <4 Watts.