NZXT Phantom 820 Review

[Mihawk]

You really have to seem to have no clue about airflow whatsoever.
The bar covers at least 1/5 of the fans blade, which deflects the airflow against it. The air gets pressed against the bar, causing turbulence afterwards which increases the noise you hear.

And most cases using similar bars is plain wrong, get your facts straight. Most cases don't support 2x140/3x120 - it's either 3x120/1x200 or nothing.

If you don't believe what I am talking about: Put a ruler behind one of your high pressure fans and hear it for yourself.

And the fact that I can remove the bar is not relevant. I don't buy a case to mod it. And so do many other people. So this bar, combined with an h100/h100i is a massive design flaw. If you install a 140/280mm radiator it's no problem.

 

[tinytomlogan]

You really have to seem to have no clue about airflow whatsoever.
The bar covers at least 1/5 of the fans blade, which deflects the airflow against it. The air gets pressed against the bar, causing turbulence afterwards which increases the noise you hear.

And most cases using similar bars is plain wrong, get your facts straight. Most cases don't support 2x140/3x120 - it's either 3x120/1x200 or nothing.

If you don't believe what I am talking about: Put a ruler behind one of your high pressure fans and hear it for yourself.

And the fact that I can remove the bar is not relevant. I don't buy a case to mod it. And so do many other people. So this bar, combined with an h100/h100i is a massive design flaw. If you install a 140/280mm radiator it's no problem.

Go careful there dude your replies are starting to seem offensive. Take this as an attitude warning.

 

[jamesriley94]

Ha, I actually completely understand the point you're making...but theoretical noise increases and actually noticeable noise differs greatly. More so if your fans are running at 50%!

Having done your test - with a credit card, rather than a ruler, so more surface area was actually covered, I honestly could not hear a difference at all.

What do you mean 'get your facts straight'? I'm talking about cases that do have 2x120mm/2x140 or 1x200...
My Switch for example has similar support beams. As does a mate of mine's Thermaltake Chaser (with 2x200m or 2x120mm mounts).

Most cases that support multiple sizes of fans in the roof will at some point in the case block some airflow to the fan. Any case that supports 120mm, and 140mm (or anything larger for that matter) will have to block airflow at some point for one fan or another.
I agree NZXT could possibly have put the support beam in between two of the fans instead, but it really doesn't make that much difference - especially when your fans are pulling through that area.

If you're that bothered about noise, your fans should be running at speeds low enough than you wouldn't be able to hear any noise from turbulence - infact, with mine, covering up the entire fan with a plastic panel made no noticeable difference in noise with fans at 5v.

This is such a trivial 'issue' (if it's even worthy of being called an issue in the first place!)

 

[Mihawk]

Sorry if my Language Seems to be offensive, which is not my intention after all. I just tried to bring my point across. And English is not my native language, so please go kind on me.

I don't know which fans you tried your credit card on, but first of all they have to produce a high staticpressure, like the corsair sp series or others. Secondly, a creditcard is really not the ideal tool to test that effect, although it has a bigger width then the bar, it has not the same length and therefor will not cover the whole fan, if you get what I mean. I can do a few videos on this issue, so that you can hear the difference, as I have one fan over the bar and one that is not covered at all, I can clearly state that this bar does influence the notice level significantly. Both fans running at 50% and nf-f12s are very silent.

To your suggestion with just moving the bar between the 2 fans. That wouldn't solve anything, as the same problem would arise if you use 2x140mm fans or 1x200mm fan, so you would have to put the support bar on the edges. But tbh, you don't need those bars as they don't support anything after all.