best 40mm cooling fans ?

VersionMonkey said:
Noctua NF-A4x20 with the low noise adapter?

This is the 12v PWM, there is also a 5v version and a 3-pin version:
https://www.overclockers.co.uk/noctua-nf-a4x20-pwm-5000rpm-fan-40mm-fg-05v-nc.html

Can't say what the noise is actually like as mine aren't installed in a quiet area.
Click to expand...

Noctua fans are generally very highly regarded. I have them in all shapes and sizes and they're brilliant. If only they had RGB!!

The reason for the this post is to point out that they also do the fan linked to above in a slimmer model, so NF-A4x10 in all the above mentioned variants. I'm about to put 2 in a Meshlicious case.
 
@ OP what is it for?

I bought a little 80mm (PWM/USB) in a kind of mount/stand for my VM HUB4 the other day as running hot.

40mm x 20mm

51xu-X9-D1r-L-SL1000.jpg
 
JohnG7 said:
@ OP what is it for?

I bought a little 80mm (PWM/USB) in a kind of mount/stand for my VM HUB4 the other day as running hot.
Click to expand...

Should let it... If it dies well VM might start to supply better products.. my Hub is in ModemMode... only good use for it... They are not Super in any way I can see
 
True.. I have some of the Noctua 40mms (my mate gave me all his when he emigrated).... but would love to know if Hub4 is any good? My 350Mbit comes through Hub3 and it was so poor at WiFi I got a DD-WRT flashed TP Link Archer xxx router and put Hub in Modem mode....

EDIT: Googling seems to show MANY people saying Hub4 was a downgrade for them.. worse WiFi and worse DL speeds... Probably anecdotal but....
 
Worse WIFI than HUB3 which was worse then the SH2ac but needed in some area for certain tiers above certain speed due to the network upgrades (how many channels you connect to), definitely needed for 1Gb/s.
 
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Depends how much airflow you need, but the Noiseblocker 40mms are good value if your airflow requirements are more modest:

The XM1 is rated at 4.9 m³ / 9dBA - £4.49
The XM2 is rated at 6.7 m³ / 14dBA - £4.49 (Similar airflow to Noctua NF-A4x10 FLX when using LNA, for 1/3 cost)

Above that the 20mm deep Noctua makes more sense
Noctua NF-A4x20 PWM at 9.4 m³ / 14.9 dBA - £13.99

https://www.blacknoise.com/site/en/...-fans/nb-blacksilentfan-series/40x40x10mm.php


My basket at Overclockers UK:
Total: £26.45 (includes shipping: £3.48)​
​
 
Noiseblocker BlackSilent Fan XM1 Fan - 40mm (2800rpm)
FG-017-NB
£4 (incl. VAT)
Find out more
Noiseblocker BlackSilent Fan XM2 Fan - 40mm (3800rpm)
FG-018-NB
£4 (incl. VAT)
Find out more
Noctua NF-A4x20 PWM 5000RPM Fan - 40mm
FG-05V-NC
£14 (incl. VAT)
Find out more
Can vouch for the Noctua NF, i use to use 3 of those, 1 on my VRM's and 2 to cool down memory on my 3090. Ran really quiet despite its high rpm and size.
 
Armageus said:
Depends how much airflow you need, but the Noiseblocker 40mms are good value if your airflow requirements are more modest:

The XM1 is rated at 4.9 m³ / 9dBA - £4.49
The XM2 is rated at 6.7 m³ / 14dBA - £4.49 (Similar airflow to Noctua NF-A4x10 FLX when using LNA, for 1/3 cost)

Above that the 20mm deep Noctua makes more sense
Noctua NF-A4x20 PWM at 9.4 m³ / 14.9 dBA - £13.99

https://www.blacknoise.com/site/en/...-fans/nb-blacksilentfan-series/40x40x10mm.php


My basket at Overclockers UK:
Total: £26.45 (includes shipping: £3.48)
​
Click to expand...

to all those that replied cheers. i got numerous noc fans in various sizes some are great but some are pretty loud to some fans i have. kinda trying to find best balance of price noise and obviously blows air or sucks. :D

did look at the noiseblocker ones on ocuk seem cheap. may give em a try.
 
Noiseblocker BlackSilent Fan XM1 Fan - 40mm (2800rpm)
FG-017-NB
£4 (incl. VAT)
Find out more
Noiseblocker BlackSilent Fan XM2 Fan - 40mm (3800rpm)
FG-018-NB
£4 (incl. VAT)
Find out more
Noctua NF-A4x20 PWM 5000RPM Fan - 40mm
FG-05V-NC
£14 (incl. VAT)
Find out more
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