Best 15mm thick CPU fan with 80mm mounting holes?

GoogalyMoogaly

GoogalyMoogaly

GoogalyMoogaly

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Hi,

So I recently built a Ryzen system in a Silverstone ML08 case. I bought the Ryzen 5 1400 CPU because the Wraith Stealth cooler would fit. The issue is that the Wraith Stealth is rubbish!

So I bought a Cryorig C7 and AM4 mounting kit.
But I couldn't figure out how to attach the AM4 mounting kit to the C7 cooler.

So having seen a video on Youtube telling me how, I bought a Wraith Spire cooler and mounted the C7 fan (because the Wraith Spire is too tall with it's default fan).
It works ok, temperatures are a lot better than the Wraith Stealth (and apparently the Cryorig C7). But the fan can be a bit loud as it needs to spin pretty fast to keep reasonable temperatures (2000+ rpm).

So on to my question...

What's the best 15mm thick fan that can be used on a CPU cooler (as opposed to a case fan)? It needs to have 80mm mounting holes, but I guess the bigger the better (so like 92mm with 80mm mounting holes would be ideal).

Thanks
 
How much CPU clearance does your case have? Cooler fans need at least 20-25mm clearance to draw air in and push it into cooler.

Also, these pancake/downflow coolers often give lower temps if fan is turned over so it pulls air from cooler instead of pushing it into cooler.
 
Okay, CPU has 58mm CPU clearance below a big vent. Just looked at case. No case airflow fans, with GPU close to grill on one side and 58mm from CPU on other. Problems I see are with each vent having to flow air into their respective components and components heated air out the natural result is an airflow loop that ends up drawing the heated air coming out of vent back into fan .. not a good thing. How tall is CPU cooler without fan / what is the distance between cooler and case side?
 
I think there's about 20mm between top of the heatsink and the side of the case. currently have a 15mm fan there.
I think people have said the Wraith Spire is about 70mm tall with fan, which is about 25mm, so heatsink must be around 45mm. (Although that makes the heatsink + current fan 60mm tall and there's around 5mm of gap to the side of the case, so some measurement is wrong somewhere)
 
Not sure what fan to suggest. Thinner fans do not have as much static pressure, so restricted airflow in cooler fins and through grill will lower amount of airflow they can provide to cooler. I googled and find Wraith Spire is 109x103x54mm (LxWxH) and Wraith Max is 105x108x85mm (LxWxH). Assuming these measurements are correct the Wraith Spire should fit in your case with it's 58mm CPU clearance specification .. so it would seem your cooler may not be Wraith Spire, but Wraith Max. Is it round or square?
 
doyll said:
Not sure what fan to suggest. Thinner fans do not have as much static pressure, so restricted airflow in cooler fins and through grill will lower amount of airflow they can provide to cooler. I googled and find Wraith Spire is 109x103x54mm (LxWxH) and Wraith Max is 105x108x85mm (LxWxH). Assuming these measurements are correct the Wraith Spire should fit in your case with it's 58mm CPU clearance specification .. so it would seem your cooler may not be Wraith Spire, but Wraith Max. Is it round or square?
Click to expand...
Round. It's the Wraith Spire. 54mm is apparently the height without the fan and the cooler is closer to 70mm (25mm fan).

As I say, I've currently got a 15mm fan on there (from the Cryorig C7), I'd just like a better fan on there, but they're proving tricky to find.
 
GoogalyMoogaly said:
Round. It's the Wraith Spire. 54mm is apparently the height without the fan and the cooler is closer to 70mm (25mm fan).

As I say, I've currently got a 15mm fan on there (from the Cryorig C7), I'd just like a better fan on there, but they're proving tricky to find.
Click to expand...
According to eTeknix, Wraith Spire is 109x103x54mm with fan.
https://www.eteknix.com/amd-ryzen-7-wraith-max-and-spire-coolers-revealed/

Another source says
"Just measured it for you since I didn't end up using the stock cooler on my Ryzen 1700. It measures from top of the fan shroud to the bottom of the mounting plate 2.75 inches which translates to 69.85mm"

Seems first souce is wrong.

Yeah, good thin 92mm fans are not easy to come by. I think I have a Thermalright TY-100 here on my AXP-100 cooler. It is quite good. I put a couple of them on my oldASUS GTX580 DirectCU II graphics card and they worked great. It's spec'ed at 108x101x14mm, not sure of hole spacing, 900-2500rpm, 30dB(A), 44.5cfm. Maybe find one of them somewhere, or maybe get a 6x 6mm heatpipe AXP-100 (58mm tall w/ fan) which is now replaced with AXP-100H (65mm tall w/ fan) cooler.

I'm still thinking so maybe I'll remember another good 92-100mm x 13-15mm thick fan.

Actually the Cryorig should be pretty good.
 
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it's just a bit loud as I have to run it at ~2000 rpm to keep it in the 30-40ºC range when almost idling (Chrome running, maybe Steam and Battle.net). Once I start gaming it goes up a few hundred rpm. It does keep the cpu pretty cool to be fair.
I've found that in the 1600-1900 rpm range the fan can make a high pitched noise (doesn't always seem to do it, seems to be if it starts up in that range).

Oh, and as for the Cryorig C7 itself. I've heard it's not a great cooler. Sadly I couldn't try it as I can't figure out how to fit the AM4 mounting kit.
 
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