Better cooling by removing slot covers? Meshify C

Unseul

Unseul

Unseul

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Planning on building in a meshify c, and just looking at setups that people have used. I see the grill on the side of the case at the back (below the fan placement) but it's at the side. I'd presume therefore there's a bit of a deadzone (no idea of the correct terminology) from the motherboard, until the grill, especially underneath a graphics card? The slots have some slits in them, but not much.

Would removing some of the slot covers below the graphics card allow for smoother airflow through the case, giving the graphics cards fans a cleaner supply of fresh air? Or would it probably not make a significant difference?

Also, I've read that you can put a fan at the bottom of the case? From the videos I've seen it looks like this could be above the power supply? Or is it from the removable cover and basically in what seems to be the hdd bay?

Anyone tested some configurations to see what works best?
 
Yes, it helps improve front to back airflow. Have found removing PCIe slot covers improves airflow around GPU by giving better front to back flow moving heated air off of GPU on back and out of case which pwers not only GPU temps but also CPU temps. This is because the increase in rear venting allows GPU heated air to flow back and out the which means it doesn't move up into CPU cooler airflow giving lower temp air into CPU cooler. Basically every degree cooler the air into CPU / GPU cooler translates into a degree cooler the CPU / GPU is. I've seen a couple of times it didn't change temps, but about 9 out of 10 times it lowers temps .. and fan / airflow noise too.
 
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Yep!
I do this, and also discovered that a 60mm fan will sit perfectly in the gap between the bottom of the case and the GPU. Held in place with strategic blu-tack.

Edit: Think it's an 80mm actually
 
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DoneADougalOnSofa said:
Yep!
I do this, and also discovered that a 60mm fan will sit perfectly in the gap between the bottom of the case and the GPU. Held in place with strategic blu-tack.

Edit: Think it's an 80mm actually
Click to expand...

Hah! That was actually going to be my next question :D Slotting in a small fan underneath to really improve things. That'll have to come at a later date though, since I don't plan on buying a new fan on top of the bundle I'm getting. However if I can find an old throwaway one, might slap it in.
 
Bear in mind you're talking about bringing air in through the rear slots but doyll was talking about letting air out that way. So I'd recommend doing some experiments! It's incredibly unlikely opening those slots will make temperatures worse.
 
Indeed, if you put a fan in there it should be exhaust for good front to back airflow. That said I haven't used a rear exhaust fan in a long time. With good intake flowing air into an on through case no exhaust fans are needed.
Think of intake and exhaust fans in a case as push pull on a cooler or radiator. When fans are up to the job they are only needed on one side of case, cooler or radiator. .. and if intakes are not up to the task there will likely be dust leaking in unfilered vent/holes where there are not intake fans with filters. ;)
 
I was talking about exhaust.

I figure the idea of an exhaust is to allow the ins to work a bit less. So 5 fans with 3 in 2 out may produce less noise than just 3 in.
 
Those of us who are using good quality fans with more than 1.5mm H2O pressure rating have found only intakes to give very good case airflow with less noise than when same case had exhaust fans. Like I said, if fans are good, no exhaust fans are needed to keep things cool and quieter.
 
I can easily believe that. Exhaust fans in theory could be used to encourage better air flow along specific routes, targeting specific components i guess?

What numbers should i be looking at with regards to fans? Cfm? Pressure? What numbers are good? Is 3.04mm decent?
 
Yes, I have had cases that using an exhaust fan behind CPU cooler or over PCIe slots below GPU improved cool airflow, but generally they don't help much if any. We are talking 1-2c difference 3c max. A fan on PCIe slots will give more improvement than on behind CPU cooler because the CPU cooler is pushing air back toward vent while GPU is dumping heat in all directions; toward and away from mobo as well as toward front and back of case.

Fractal Design makes very good cases, but the Dynamic X2 GP-12 120 mm fans they come with only make 0.88mm H2O at 1200rpm, about 2/3rds as much as I want my case fans to have. PH-F120MP makes 1.62mm H2Oat 1600rpm with 68.8cfm free airflow & 17.8dB(A) and 5.08mm at 849rpm with 37.8cfm PH-F140MP makes 2.29mm at 1420rpm with 70.9cfm free airflow & 20.3dB(A) and 0.76mm H2O at 800rpm with 48.6cfm free airflow. The above is from CoolingTechniques testing
http://www.coolingtechnique.com/rec...ne-phanteks-ph-tc12ls-e-ph-tc14s.html?start=5

I suggest using PH-F140MP or PH-F120MP fans.
But right now OcUK only has PH-F140MP_BK @ £13.95 each All others are out of stock.
https://www.overclockers.co.uk/search?sSearch=ph-f140mp
If you shop around you can find them for £11.99 each with free delivery.

They have 2-packs of PH-F120MP is £14.99, 3-pack is £26.00 and singles are £10.99
https://www.overclockers.co.uk/search?sSearch=ph-f120mp

A good guestimate of fan noise increase by number of fans in free air, not mounted in a case is:
2x fans make about 3dB more noise than 1 fan,
3x fans make about 4.8dB more noise than 1 fan
4x fans make about 6dB more noise than 1 fan
5x fans make about 7dB more noise than 1 fan
10x fans make about 10dB more noise than 1 fan​
But this is only the fans' noise and in our cases we have to add in another couple dB per fan for the noise caused by grill and/or filter resistance.

2x 140mm or 3x 120mm front intakes and 1x 120mm bottom intake in Meshify C with all PCIe slot covers removed is likey ideal setup. You might find this link to basic guide of how case airflow works and how to optimize it of interest.
https://forums.overclockers.co.uk/t...-i-put-my-temp-sensor.18564223/#post-26159770

If it was me I would shop around for a couple PH-F140MP for front intakes and try using the stock 120mm as bottom intake. Have top front fan's speed curve controlled by CPU temp and bottom front fan by GPU temp.

CFM rating is not very important, but static pressure rating is. Fans' airflow rating is free airflow which is at best a fan's cfm with nothing around it .. a fan hanging on strings in middle of room. Static pressure rating is maximum pressure the fan at full speed makes in a sealed box. Fans' ability to overcome airflow resistance is key to having good airflow. making 1.5mm H2O or higher at 1300rpm. Obviously the faster the fan the higher the static pressure rating will be. Keep in mind fan noise starts being audible in case setting on floor by / under desk at at around 1100rpm for 140mm fans and 1200 for 120mm fans.

Bottom line here is in Meshify C you either have to add some good fans to get decent airflow with or without the stock fans .. myself |I would get a few good fans and sell the stock fans. ;)
 
There's a three pack of akasa pwm piranha air rippers for £15 at the moment. Upto 3.01mm. Worthwhile when combined with the stock?
 
They are no better than stock case fans at same speed. I would not use them. You can see it in the below data from
Cooling Techique testing

of Piranha
http://www.coolingtechnique.com/rec...nha-viper-140-e-apache-black-140.html?start=1

Here is PH-F120MP and PH-F140MP
http://www.coolingtechnique.com/rec...ne-phanteks-ph-tc12ls-e-ph-tc14s.html?start=5

Hopefully the above will let you see why I recommended Ph-F120MP and PH-F140MP and do not recommend Piranha

If you want to get by with a cheap fan get Arctic F14 PWM or Arctic F14 PWM PST. Same basic fan wihth PST having a female fan connector so fans can be daisy chained together.
 
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I prefer 140mm to 120mm in most cases, no pun.

I first suggested PH-F120MP & PH-F140MP, then Arctic F12 PWM & F14 PWM. Which fans are you thinking of getting?
 
Phanteks 140mm is what I'm looking at. Shame there's not the bundle! But I guess 2x 140s isn't that expensive either, even without the saving. Can't find a better price.
 
2x 140mm fans as front intakes is usually enough airflow, but sometimes adding a bottom intake helps GPU temps. Try 2x 140mm in the front and see what your temps are like. Ideally airflow to coolers should be 2-3c above room ambient, but 5c is still good. Below is a link to basi guide to case airflow. The simple remote sensor thermometer shown there is well the few quid it costs.
https://www.overclock.net/forum/22319249-post5.html
 
Yeah I saw your post, it's a nice one. I'll be having a play with temperatures later, not going to be my first port of call. First of all I'll be just wanting to get it all up and running really. It'll be my first desktop (outside of the office) for over a decade, and having just moved, I'll need to see what I can do with tweaks later.
 
Right, so just bought the build, except for monitor (I'll steal the old hd TV out of my mums kitchen for testing I guess!).

Will be trying to set everything up as you've suggested, 140s blowing in, move one of the 120s to the rear, and maybe one on the bottom (where on the meshify does it actually go??). Take a few extra slots out of the bottom too for air flow.
 
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