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9d • General discussion
I have to admit you something
For a while, one small thing was driving me crazy every time I powered on my Proxmox machine.
Not the CPU.
Not the storage.
Not the software.
The fan.
It was loud. Constantly loud. Full speed from the moment the machine started. And once I noticed it, I couldn’t ignore it anymore.
That’s the annoying part about hardware problems like this — they don’t stay in the background. They slowly take over your attention until fixing them becomes the only thing you can think about.
So I started digging.
I checked the socket type.
I removed the motherboard.
I measured the mounting holes.
I confirmed what I needed.
Only then did the search begin.
The setup itself was nothing exotic: an Intel Core i5-6500 sitting on a Lenovo ThinkCentre M900 motherboard, model IQ1X0MS (30BC), with an LGA1151 socket.
A budget CPU on a budget OEM board — simple on paper, but not so simple when the fan refuses to behave.
At that point, the goal was clear.
I didn’t need the biggest cooler.
I needed the quietest practical solution.
So I compared a few options:
Noctua NH-D15 - extremely powerful, but probably more cooler than this CPU really needed.
be quiet! Dark Rock Pro 5 - premium, silent, and also a bit overkill here.
Endorfy Fortis 5 - a strong, balanced option with good value.
Endorfy Fera 5 - compact, affordable, and practical.
be quiet! Pure Rock 3 - quiet, sensible, and enough for a 65 W processor.
And after thinking it through, the choice became obvious.
I went with the be quiet! Pure Rock 3.
It was reasonably priced was more than enough for the i5-6500.And it solved the problem without turning the build into something unnecessarily expensive or oversized.
But the cooler alone was not the whole story.
No more background irritation. No more fighting the machine every time I wanted to use it.
Just a simple fix that made the whole setup feel right again.
And honestly, sometimes that’s the best kind of upgrade - not the flashy one, but the one that quietly removes a problem you were tired of living with.
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I have to admit you something
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