Enhance ENP7660B fan swap

casni

Minimal Tinkerer
Original poster
New User
Jun 27, 2020
4
1
Hey everyone,

I want to assemble a high performing SFF build. These are the parts I have currently ordered:
  • CASE: Velka 3 revision 2.0
  • CPU: AMD Ryzen 7 3700X
  • GPU: Gigabyte GeForce RTX 2070 MINI ITX
  • MOBO: Gigabyte X570-I Aorus Pro WiFi
  • RAM: Corsair Vengeance DDR4 32GB DC 3200MHz
  • SSD: Gigabyte Aorus SSD 2TB PCIe 4.0 NVMe
  • COOLER: Noctua NH-L9a-AM4 chromax.black
  • PSU: Enhance ENP-7660B 600W Platinum
Naturally I want my build to be as silent as possible, so I am a little in doubt as to whether or not I should swap out the default fan in the PSU.
Enhance ENP7600 PLATINUM (500W-600W) Spec
Enhance ENP7600 PLATINUM (500W-600W) Full spec

So far I have found three contenders for (possibly) better fans:
  1. Noctua NF-A4x20 PWM 12V
  2. ADDA AD0412XB-C51 12V 0.2A
  3. Sunon KDE1204PKV3 12V 0.03A 0.4W
For low noise levels, Noctua is usually the better choice, but maybe a higher constant air flow would be a better noise-option overall?
If the Noctua cannot handle the heat output from the PSU at a low RPM, and starts ramping up after a while, I would rather go with a fan with a higher constant air flow (and higher noise levels) if this means it never ramps up to full-speed.

So my question is:
What is the best option here for an overall low noise experience?
One of the three options listed above, or maybe a fourth option I am not aware of?
Or is the best option actually to leave the fan as it is?

PS: Money is not an issue here to get a minor improvement in noise reduction, and I will make sure not to get electrocuted when (if) swapping the fan :)

Thanks in advance!
CASNI
 

ChinStrap

Cable-Tie Ninja
Sep 13, 2017
167
144
I have the Enhance 7660B in my Velka 3, I don't hear it over my NH-L9a or 2070 ITX. Put it together on your motherboard box first and test for sound before putting it in the Velka 3, You might be surprised how quite it actually is. :)
 
  • Like
Reactions: casni

JohnCA

Trash Compacter
Dec 2, 2018
54
23
The fan on the 7660B is already quiet enough.
Changing the fan is not recommended, I've seen many people reporting that their PSU starts failing after some weeks due to overheating...
 
  • Like
Reactions: casni

Instran0

Master of Cramming
May 31, 2017
418
76
Last edited:
  • Like
Reactions: jhonsmith

casni

Minimal Tinkerer
Original poster
New User
Jun 27, 2020
4
1
very nice config!
could you please post feedback on psu?
Received my modded (shorter black cables) 7660B from Taobao a couple of weeks ago - works like a charm.
ChinStrap is completely right: NH-L9a and 2070 ITX is where the noise comes from.
Looking into undervolting CPU for better thermals (waiting for release of 1usmus' ClockTuner for Zen 2 Ryzen), and undervolting GPU with MSI Afterburner.
 
  • Like
Reactions: jhonsmith