power supply fan facing down on zalman z9

friz64mc · Dec 8, 2017

so my pc is based on a prebuilt and i still have the case (zalman z9) and the powersupply (cooler master b500 v2)

i just noticed my power supply fan is facing down even tough there are only small lines that dont really allow much airflow

its been like that for 2,5 years and so far nothing went wrong but i just thought id ask here just to be safe

Barty1884 · Dec 8, 2017

There are slits there, which should be sufficient (although not ideal) for the PSU.

Whether face-up is a viable alternative, depends what you've got the case populated with - if you have a GPU blowing a low of warm air into the case, pulling in warm air would likely be less ideal that the limited (cool) intake.

The Paladin · Dec 8, 2017

cut the slots out ? drill holes along the slots would be another easy fix. why not rotate the PSu to fan downward into the case? (since its not exhausting anyways...)

Dark Lord of Tech · Dec 8, 2017

When the slits are clear of dust there is enough venitlation to keep a fan down.

friz64mc · Dec 8, 2017

Barty1884 :

I have a blower style gpu, so i guess its fine because i'll get another case before i upgrade my gpu

Dark Lord of Tech · Dec 8, 2017

Fan Face down is fine in that case there is enough ventilation.

dudio · Dec 8, 2017

The big fan on your PSU that is facing the bottom is the Intake fan, and it exhausts out the rear of the tower.
This is the common way nowadays, however, better tower cases use a removable screen (for occasional cleaning)
that is large and otherwise unobstucted.
Since you can't monitor PSU temperatures, try feeling it while you're gaming to see if it's getting pretty hot.
With your current setup, of just slits, it is likely that dust is getting into the PSU and not helping. What I would
personally do is remove the PSU and blow it out with compressed air. I would also bend the slits so that they are
open more (or bend them back and forth and see if you can snap the whole indentation out). If you go that route,
you will want to add a screen. You could actually glue a section of aluminum or nylon window screen that you can
get at the hardware store, and glue it to the bottom of the case. Just remember to vacuum it occasionally.

friz64mc · Dec 8, 2017

dudio :

The big fan on your PSU that is facing the bottom is the Intake fan, and it exhausts out the rear of the tower.
This is the common way nowadays, however, better tower cases use a removable screen (for occasional cleaning)
that is large and otherwise unobstucted.
Since you can't monitor PSU temperatures, try feeling it while you're gaming to see if it's getting pretty hot.
With your current setup, of just slits, it is likely that dust is getting into the PSU and not helping. What I would
personally do is remove the PSU and blow it out with compressed air. I would also bend the slits so that they are
open more (or bend them back and forth and see if you can snap the whole indentation out). If you go that route,
you will want to add a screen. You could actually glue a section of aluminum or nylon window screen that you can
get at the hardware store, and glue it to the bottom of the case. Just remember to vacuum it occasionally.

Thanks for the extensive answer, i will take some of your tips into consideration.

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