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Corsair Obsidian 250D Club - Page 277

post #2761 of 3052
Quote:
Originally Posted by JTravis1988 View Post

Just curious but did you paint the case or did you use something like vinyl stickers? It looks really cool.

Thanks Jtravis, Nothing is done so far.. Everything is black and in planing/drawing mode.
I think i will paint it all in blue and then use stickers and putt som extra coating over it when the stickers are mounted.

But for now its just a Rhino 3d modell, renderd in Octane render.
Edited by Says Who - 2/2/16 at 2:15pm
post #2762 of 3052
Hey guys, after changing my 2 AF120s on the side to exhausts, I've been better temps. I thought I would get lower temps too, if i replaced the stock 140 mm fan with a 200mm CM megaflow, however, this has not been the case. If anything, my idle GPU temps have gone up 10 C while the load temps remain around the same, but my GPU fan runs a little louder.

My GPU does have the 0db thing where it turns off below 60C, and with a 140 and 2 120's, it ran around 40-50 C idle, but when I added the 200mm, it runs at 50-60 O_O

Why does this happen? I feel like with more airflow, along with the fact that the 200mm actually will deliver cool air to the GPU, it should run cooler, should it not? And even when I set my AF120s to intake, I can't feel any exhaust air coming out the rear. Why does my setup seem to passively cool horribly?

Specs btw:
CM GeminII S524 Rev 2 CPU cooler
MSI R9 390 (literally, the megaflow cleared with 1 mm of space)
2xAF120 exhaust on sides
1x200mm CM Megaflow intake on front

Kinda confused and I don't want to send my 200mm fan back, because i bought it from newegg so i would only get a partial refund, and as a student, money is already tight bleh

EDIT: I also see in many places that people suggest positive pressure not only for this case, but also in general. Why are my temperatures so bad whenever I attempt positive pressure (whenever i set the AF120's as intake with the megaflow, gpu temps increase by 3-4 degrees and a ~10%fan increase)?
Edited by awakenpan - 2/3/16 at 9:36pm
post #2763 of 3052
Quote:
Originally Posted by Says Who View Post

And here we have a pick from the inside, more is coming. smile.gif
I just had to trie to render with the corsair dominator platinum cause they would fit the design perfectly.
To bad i have this thing called budget and have to use my old Corsair vengance.

[24132968264_bb471fd7dc_b.jpgCorsair 250D Custom Z-40_detail 2-2 by Wydaddy, on Flickr

From what I read in your last post it's on planning stage so what we're seeing are Photoshopped images of the plan build. Just curious as to how you're going to accomplish this. You're water cooling this build but with the sleeve cables at the side that leaves you without any space for even a small 120 mm radiator as the front of the PSU is fully covered with a shroud. My experienced building with 250D is that it can be very trickly with cable management even when you sleeved those PSU cables in bundles.
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post #2764 of 3052
@awakenpanthe 200 mm fan probably doesn't have the same amount of static pressure to push the air to the gpu unlike the 140mm one. So switch back to that one imo
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post #2765 of 3052
Quote:
Originally Posted by Cannonkill View Post

@awakenpanthe 200 mm fan probably doesn't have the same amount of static pressure to push the air to the gpu unlike the 140mm one. So switch back to that one imo

Really? The 200mm fan has twice the cfm, altho i'm not still exactly sure how everything quite works.

I did realized that my CPU cooler is 130 mm tall, which pretty much is as tall as my gpu. I think that might actually be blocking the airflow in that entire area (could that be why not much air exhausts out the back? Because the CPU cooler is blocking most of the back vent? Also blocks one exhaust fan and half the gpu backplate, could also be blocking the 200mm fan from pushing air out the back). Would getting a lower CPU cooler be a solution? So far I'm eyeing the noctua NH-L9I, the 37mm height is really enticing but I don't wish to spend $40 if it won't solve anything, especially since returning the 200 mm fan would be cheaper.

I didn't really want to switch back to the 140mm fan because that makes my case negatively pressured D: but i'm not sure if what I want is possible at this point.
post #2766 of 3052
Quote:
Originally Posted by Cheaptrick View Post

From what I read in your last post it's on planning stage so what we're seeing are Photoshopped images of the plan build. Just curious as to how you're going to accomplish this. You're water cooling this build but with the sleeve cables at the side that leaves you without any space for even a small 120 mm radiator as the front of the PSU is fully covered with a shroud. My experienced building with 250D is that it can be very trickly with cable management even when you sleeved those PSU cables in bundles.

Hi and thanks for your thoughts. smile.gif

Just started to test mount the parts i have, and as you said it´s realy tight.
I bought Corsair fans cause they are realy good, but if i want to use them i have make some kind of special mod on that side panel.
Maybe like a scoop like the gt40 has on the side.

I have also bought the Schyte Slip stream slim 2000 RPM With them i have like 1.5 cm between the mobo and the fan. Could work. smile.gif
They are mounted on a Alphacool 240 rad.

In the bottom i will cut a hole and mount a 120mm radiator and mount the fan from the outside.

Whit this setup i have to skip the front fan and mount the res and pump on that wall.

But will se, i will do some 3d work and se how it will look with a scoop.
post #2767 of 3052
Quote:
Originally Posted by awakenpan View Post

Hey guys, after changing my 2 AF120s on the side to exhausts, I've been better temps. I thought I would get lower temps too, if i replaced the stock 140 mm fan with a 200mm CM megaflow, however, this has not been the case. If anything, my idle GPU temps have gone up 10 C while the load temps remain around the same, but my GPU fan runs a little louder.

My GPU does have the 0db thing where it turns off below 60C, and with a 140 and 2 120's, it ran around 40-50 C idle, but when I added the 200mm, it runs at 50-60 O_O

Why does this happen? I feel like with more airflow, along with the fact that the 200mm actually will deliver cool air to the GPU, it should run cooler, should it not? And even when I set my AF120s to intake, I can't feel any exhaust air coming out the rear. Why does my setup seem to passively cool horribly?

Specs btw:
CM GeminII S524 Rev 2 CPU cooler
MSI R9 390 (literally, the megaflow cleared with 1 mm of space)
2xAF120 exhaust on sides
1x200mm CM Megaflow intake on front

Kinda confused and I don't want to send my 200mm fan back, because i bought it from newegg so i would only get a partial refund, and as a student, money is already tight bleh

EDIT: I also see in many places that people suggest positive pressure not only for this case, but also in general. Why are my temperatures so bad whenever I attempt positive pressure (whenever i set the AF120's as intake with the megaflow, gpu temps increase by 3-4 degrees and a ~10%fan increase)?

I'm fairly certain the positive case pressure makes it harder for the gpu to get fresh air from the side. This would explain why changing the side fans to exhaust helped with temperatures. When you add in the 200mm front fan, overall case pressure goes up so it makes it harder for the gpu fan to overcome the pressure as an intake. Try lowering the speed on the 200mm front fan to neutralize the pressure and see if that affects the temperature of the gpu at all.
post #2768 of 3052
Quote:
Originally Posted by cornbean View Post

I'm fairly certain the positive case pressure makes it harder for the gpu to get fresh air from the side. This would explain why changing the side fans to exhaust helped with temperatures. When you add in the 200mm front fan, overall case pressure goes up so it makes it harder for the gpu fan to overcome the pressure as an intake. Try lowering the speed on the 200mm front fan to neutralize the pressure and see if that affects the temperature of the gpu at all.

omg that makes sense i'm an idiot. i was blindly following other people's suggestions to make a positive pressure setup... except they were talking about larger cases where the gpu doesn't have to directly intake air like a non-reference gpu in the 250d has to.

dammit now i got a 200mm fan that i probably shouldn't have bought... i suppose positive pressure in this case with pure air-cooling will only bring higher temps. thats somewhat disappointing

although... then why do i see so many people do a positive pressure setup with liquid cooling? won't that result in the same scenario for higher gpu temps? ahhh idk anything
Edited by awakenpan - 2/4/16 at 8:26pm
post #2769 of 3052
Quote:
Originally Posted by awakenpan View Post

omg that makes sense i'm an idiot. i was blindly following other people's suggestions to make a positive pressure setup... except they were talking about larger cases where the gpu doesn't have to directly intake air like a non-reference gpu in the 250d has to.

dammit now i got a 200mm fan that i probably shouldn't have bought... i suppose positive pressure in this case with pure air-cooling will only bring higher temps. thats somewhat disappointing

although... then why do i see so many people do a positive pressure setup with liquid cooling? won't that result in the same scenario for higher gpu temps? ahhh idk anything

When you have the gpu on a waterblock, it isn't acting as an intake anymore through the side panel. You just need to focus on airflow through your rads. Also, the fans used on rads are high static pressure which can handle pushing air through a pressurized system.
post #2770 of 3052
Quote:
Originally Posted by cornbean View Post

When you have the gpu on a waterblock, it isn't acting as an intake anymore through the side panel. You just need to focus on airflow through your rads. Also, the fans used on rads are high static pressure which can handle pushing air through a pressurized system.

Ah I see. Wow hm, so I guess buying the 200mm fan was a bad choice for an all-air cooled build... well that sucks. I'm not even sure if I'll ever use it in the future.
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