Review: Arctic Liquid Freezer II 280 liquid cooler

#5769611 Posted on: 03/15/2020 04:18 AM

---

hi . A question for an Arctic LF II owner’s ..
when the CPU loads up or down , i hear a very strange voice from the cpu (pump) but on the full load i don’t hear.it’s like when you blow with air an empty tube... if you know what i mean..
Have you heard this strange voice also ?
My Cpu is i5 9600kf Cpu Cooler Arctic LF Ii 360mm. i overclocked to 5 Ghz . I tried auto voltage 1,344 also tried 1,300 ,1,27 the system boots and aida 64 1 hour jumping between 64 and 81 C
i also have high temperatures while stress test Prime 95 small FFtp no AVX, my temps reached 99 C after few minutes testing...
I used the stock Mx4 thermal paste
My case with good airflow! so no problem with that
any Helps please?

#5841519 Posted on: 10/11/2020 06:00 PM

---

hi . A question for an Arctic LF II owner’s ..
when the CPU loads up or down , i hear a very strange voice from the cpu (pump) but on the full load i don’t hear.it’s like when you blow with air an empty tube... if you know what i mean..
Have you heard this strange voice also ?
My Cpu is i5 9600kf Cpu Cooler Arctic LF Ii 360mm. i overclocked to 5 Ghz . I tried auto voltage 1,344 also tried 1,300 ,1,27 the system boots and aida 64 1 hour jumping between 64 and 81 C
i also have high temperatures while stress test Prime 95 small FFtp no AVX, my temps reached 99 C after few minutes testing...
I used the stock Mx4 thermal paste
My case with good airflow! so no problem with that
any Helps please?


Extremely weird you are getting such high temps as 99C??? You must either A: Have done something wrong on installation of the coolerblock on the cpu or B: Your unit is broken. I am just cooling my Ryzen 5 3600X with this one and i have not rune prime or anything like that. I just game like crazy and even in high demand gaming my cpu never reaches over 75C with the cooler on pwm control. Super silent and happy with this watercooler. It completely DESTROYS my super expensive EK 280 Predator cooler wich cost me 2.5 times as much 2 years ago.

Have you installed it in the front of case or top?

#5846415 Posted on: 10/25/2020 09:24 PM

---

I think its down to the orientation when i first set it up in my cube case sideways max prime95 avx temps where 85 or so
I moved it to the top a few days later and temps where about 12°C higher peak

I changed case the other day with the rad in the front with the pipes down and its back to 85°C Peak
and this case runs alot warmer than the old one

at the time i presumed it was down to summer
but turns out it was the orientation

Edit i did post images but it seems postimg is banned or something

anyway

Top of case = Bad
Side of case = Good
Front of case with pipes at bottom = Good

At a guess i would say Front of case with pipes at top = Bad

#5846485 Posted on: 10/26/2020 06:02 AM

---

Top of case = Bad
Side of case = Good
Front of case with pipes at bottom = Good

At a guess i would say Front of case with pipes at top = Bad
AIO coolers contain 2-10% air in the loop, depending on manufacturer. Positioning an AIO in the front of the case or the bottom of the case with tubes at the top can cause the air to enter the pump, reducing performance and causing pump noise.
Installing an AIO in the front of the case with tubes down is ideal, but not always possible.
Installing an AIO in the top of the case would have a negligible affect on cooling performance, granted there are enough intake fans installed and fan speeds are properly controlled.

#5866835 Posted on: 12/14/2020 09:50 PM

---

Hi.

I bought NZXT 510 but I cannot mount Arctic Liquid Freezer II 280 anywhere inside, so I have a radiator outside on top of the case.
I'm buying a new PC Case where I could mount the radiator on top. Since it's so thick I found only one case where they say how much clearance is there: Phanteks Eclipse P500. But I don't like how it looks.

Arctic Liquid Freezer II 280 is sooooo good it cooled my old Ryzen 3600 like a champ, totally silent. Now it cools Ryzen 5900 totally silent too. After 1h of prime95 torture test temps are ~10-15C below the average of similar AIO products. But one reason is probably because the radiator is outside of a case...

Any ideas?