Not to sure if this subsection applies to this but I'd thought I'd share a little randomness. Since summer isn't too far here in the UK I'm planning on adding a second Sapphire Radeon RX 570 Pulse I thought I'd upgrade the fans or basically upgrade the rear 120mm and add a pair of 140mm Redux 1,500rpm fans to the top of the case. The idea with the two 140mm fans is to also aide air flow around the VRMs for the motherboard Vcore and Vmem. I'm running a modest overclock of 4.20GHz @ 1.138v so nothing drastic but have noticed the heatsinks do get quite warm (well within spec I'm sure) so a little extra airflow will surely help.
The fans in question are Noctua Redux 120mm for the rear exhaust and a pair of Noctua 140mm Redux 1,500rpm for the top which are connected to a fan controller so when they're not required I can turn them off. I have more fans on the way for the other machines that I will post at some point. The 3 fans for Terra came out to almost £40 but dispite the price they also have a 6 year warranty but I've seen their fans a lot older than that running as good as they day they were built so basically this is a cooling investment haha. I don't have pictures yet but at the front of the case is the Corsair H100i V2 cooling the CPU, later in the year my plan is to replace the 120mm Corsair fans with 120mm Noctua Industrial PPC 3000 fans which are rated for 3,000rpm which will also go though a fan controller. Overall the gains may not be that great but it is still good fun
Also I'm not very well versed in photo editing so apologies for the pictures.
If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
I tried one of the 140mm Noctua Industrial PPC 3000 fans and it was super loud. If you care about fan noise, be aware. They do give great airflow, but I couldn’t stand the noise. Ended up going with some much quieter 1200 rpm fans
Last edited by Kebast on Sun May 03, 2020 4:03 pm, edited 1 time in total.
HaloJones wrote:If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
The only filter the case has is on the front so dust build up is quite high, I clean out the PC on a regular basis due to running 24/7, not only does it fold it is also my Netflix and YouTube box. Dust buildup is not a concern. The top 140mm fans will only be used if needed so as long temps are fine they'll be off so most of the time the case is at positive pressure.
Just infront of the PSU is a space for an additional 120mm fan so if needed I can add another there.
Kebast wrote:I tried one of the 140mm Noctua Industrial PPC 3000 fans and it was super load. If you care about fan noise, be aware. They do give great airflow, but I couldn’t stand the noise. Ended up going with some much quieter 1200 rpm fans
I'll have them going through a fan controller so I can vary the speed, if I'm not around and if needed I can dial up the fan speed to full. I don't mind a little fan noise but overall I'm more concerned with temperatures so aslong as they're in check I'm happy to deal with the noise
HaloJones wrote:If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
I use duct tape to tape off most of the airvents, and keep the front vent open.
Many cases have a filter on the front vent, so even if the case is getting a negative pressure, a front 120mm intake is more than enough to provide fresh air.
However, if there was a way you could run the GPU outside of the case, it would run a lot cooler.
If the air pressure of intake vs out is not even then I got strange noises from the fans fighting against the pressure. With even intake / outtake it has smooth air flow. As I like silent case and high air flow I use as many fans as possible in the case but all on low speed. For GPUs blowing hot air to the side I found 2 fans aside of the GPUs is best.
I just gave up trying to keep dual GPU systems cool and quiet and went with one dual-axial GPU in the upper slot and one Hybrid card in the lower. Makes the system much quieter.
I usually use Noctuat iPPC3000 fans, 2 as front-intake and one as rear exhaust in Fractal Define R4, S and Meshify S2s. Just use the BIOS fan curve editor to lower the RPMs but it's nice to know if I need a massive amount of airflow at a high static pressure I have it there in my back pocket.
The Redux are nice but don't have the high static pressure you'd want in the front of a Define case to get around those 90 degree offsetted air vents. I'm slowly replacing my Define R4s with meshifys as my own informal tests and those done by others have shown that you can get system just as quiet with a case like the meshifys by being able to run 140mm fans at lower speeds due to less impedance.
gordonbb wrote:I just gave up trying to keep dual GPU systems cool and quiet and went with one dual-axial GPU in the upper slot and one Hybrid card in the lower. Makes the system much quieter.
I usually use Noctuat iPPC3000 fans, 2 as front-intake and one as rear exhaust in Fractal Define R4, S and Meshify S2s. Just use the BIOS fan curve editor to lower the RPMs but it's nice to know if I need a massive amount of airflow at a high static pressure I have it there in my back pocket.
The Redux are nice but don't have the high static pressure you'd want in the front of a Define case to get around those 90 degree offsetted air vents. I'm slowly replacing my Define R4s with meshifys as my own informal tests and those done by others have shown that you can get system just as quiet with a case like the meshifys by being able to run 140mm fans at lower speeds due to less impedance.
