Best way to mount PSU ?

[Intel HD Graphics]

Fan up or fan down ?

[CryptoMatt]

Always fan down that way it’s it’s own  airflow and won’t make your case hot by blowing hot air into the case.

 

if you have a top mount PSU then mount it up if there’s a fan hole for it 

 

That is the reason there is a fan hole by the psu mount 

[Intel HD Graphics]

1 minute ago, CryptoMatt said:

Always fan down that way it’s like it’s own  airflow and won’t make your case hot by blowing hot air into the case. 

 

That at is the reason there is a fan hole by the psu mount 

oh i thought is sucks air from the case, lul

[seon123]

1 minute ago, CryptoMatt said:

Always fan down that way it’s it’s own  airflow and won’t make your case hot by blowing hot air into the case.

 

That is the reason there is a fan hole by the psu mount 

The PSU intakes from the case. And it's not like a 1500RPM fan is going to make a big difference

[Intel HD Graphics]

1 minute ago, seon123 said:

The PSU intakes from the case. And it's not like a 1500RPM fan is going to make a big difference

so just fan down then ?

[MkaiL]

1 minute ago, Intel HD Graphics said:

oh i thought is sucks air from the case, lul

It does. The fan blows directly onto the psu components and air gets pushed out the back. If your case has a filtered psu intake on the bottom and you don't plan on putting it on carpet or obstruct it in another way, point the psu fan down. This way your psu won't have any effect on temps and airflow inside the case. 

[CryptoMatt]

2 minutes ago, Intel HD Graphics said:

so just fan down then ?

Well it depends if your case is top mount of bottom most are bottom now so I assume that’s what you have 

[CryptoMatt]

2 minutes ago, MkaiL said:

It does. The fan blows directly onto the psu components and air gets pushed out the back. If your case has a filtered psu intake on the bottom and you don't plan on putting it on carpet or obstruct it in another way, point the psu fan down. This way your psu won't have any effect on temps and airflow inside the case. 

My psu blows out from the fan is it not supposed to?

ive tested with toilet paper 

[Intel HD Graphics]

1 minute ago, CryptoMatt said:

My psu blows out from the fan is it not supposed to?

ive testing with toilet paper 

What psu ?

[CryptoMatt]

Just now, Intel HD Graphics said:

What psu ?

I think I have the s12ii or something like that

[Intel HD Graphics]

1 minute ago, CryptoMatt said:

I think I have the s12ii or something like that

looks like is sucks air into PSU as shown from this picture 

[CryptoMatt]

1 minute ago, Intel HD Graphics said:

looks like is sucks air into PSU as shown from this picture 

Wtf was mine made upside down lol, I haven’t had any problems with it overheating so I thought it’s how they are 

[Intel HD Graphics]

Just now, CryptoMatt said:

Wtf was mine made upside down lol, I haven’t had any problems with it overheating so I thought it’s how they are 

[CryptoMatt]

2 minutes ago, Intel HD Graphics said:

Maybe I need to make a post about this and see what they think lol I did buy it second hand though 

[MkaiL]

2 minutes ago, CryptoMatt said:

Wtf was mine made upside down lol, I haven’t had any problems with it overheating so I thought it’s how they are 

How is the fan orientation? What side is facing outwards?

[CryptoMatt]

8 minutes ago, MkaiL said:

How is the fan orientation? What side is facing outwards?

I can’t really look but if I put toilet paper under the fan holes for my psu it will push the paper not suck it on the vent 

[Xander Cousins]

3 minutes ago, CryptoMatt said:

I can’t really look but if I put toilet paper under the fan holes for my psu it will push the paper not suck it on the vent 

Love how basic methods help us know what way it sucks or blows. 

 

 

[MkaiL]

5 minutes ago, CryptoMatt said:

I can’t really look but if I put toilet paper under the fan holes for my psu it will push the paper not suck it on the vent 

What happens at the vent holes in the back? Are you also sure the fan on your psu is on, most modern psu don't spin their fans unless necessary. 

 

1 minute ago, Alex Colson said:

Love how basic methods help us know what way it sucks or blows. 

My fav method, and probably best, is using smoke (incense sticks etc). You can see exactly where air gets sucked in, blown out, if you have positive or negative pressure... 

[chiller15]

Most PSUs will take air in from the case and push it out the vent holes, pointing out of the rear of the case.