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BE QUIET! BK008 Pure Rock Slim Heatsink & Fan (Intel & AMD Sockets) £17.99 at Amazon (+£4.49 Non Prime)
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BE QUIET! BK008 Pure Rock Slim Heatsink & Fan (Intel & AMD Sockets) £17.99 at Amazon (+£4.49 Non Prime)

£17.99£195%Amazon Deals
Expert (Beta)44
Expert (Beta)
Posted 19th Jan

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Lowest price according to 3 camels, decent Intel/AMD cooler.

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  • High cooling capacity for this category, at 120W TDP
  • Three 6mm heat pipes with aluminum caps carry heat to cooling fins for high performance
  • Compact design saves space, making cooler compatible with a vast array of equipment and possible installation configurations
  • Full configuration of RAM memory banks in PC cases with limited space
  • Fan blades are airflow-optimized to reduce noise-generating turbulence

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Top comments
speedfire6619/01/2020 20:41

My prism is giving idles of 34 degrees. Pretty decent IMO



Idle temps really don't mean much.
44 Comments
Huge upgrade on most stock coolers for very little money. HOT
This or a wraith prism cooler??
bruce28719/01/2020 20:35

This or a wraith prism cooler??


My prism is giving idles of 34 degrees. Pretty decent IMO
bruce28719/01/2020 20:35

This or a wraith prism cooler??


Wraith prism but use kyronaut paste
Seems like a very good price. Is this comparable with with 212 Evo?
speedfire6619/01/2020 20:41

My prism is giving idles of 34 degrees. Pretty decent IMO



Idle temps really don't mean much.
speedfire6619/01/2020 20:41

My prism is giving idles of 34 degrees. Pretty decent IMO


What's the load temps?
MFT0119/01/2020 20:47

Seems like a very good price. Is this comparable with with 212 Evo?


They're broadly comparable. This is significantly smaller and has a 92mm fan compared to the 120mm on the Hyper 212 but they perform about the same.

The Pure Rock Slim is also much easier to fit than the 212 and the stock fan is better, which helps make up for the smaller size.
daveroy19/01/2020 21:12

They're broadly comparable. This is significantly smaller and has a 92mm …They're broadly comparable. This is significantly smaller and has a 92mm fan compared to the 120mm on the Hyper 212 but they perform about the same. The Pure Rock Slim is also much easier to fit than the 212 and the stock fan is better, which helps make up for the smaller size.



Won't the 92mm fan mean this will be noisier?
If you like it quiet, go for a 212 evo. Bigger fan doesn't have to spin as fast to move same amount of air.
rev619/01/2020 21:08

Idle temps really don't mean much.


It does for noise.
speedfire6619/01/2020 21:38

It does for noise.


It could be 20c at idle, due to ambient temps, CPU behaviour, and totally silent. But it could jump to 100c at load, so idle temps mean nothing, to me anyway.
Edited by: "rev6" 19th Jan
Arkz19/01/2020 21:28

If you like it quiet, go for a 212 evo. Bigger fan doesn't have to spin as …If you like it quiet, go for a 212 evo. Bigger fan doesn't have to spin as fast to move same amount of air.


Yeah but it also depends on the fan and the rpm and the bearings etc. But generally yeah correct.
rev619/01/2020 21:17

Won't the 92mm fan mean this will be noisier?


Actually no, Be Quiet's Pure Wings 2 fans hit ~25.4db under load compared to the ~31db of the Cooler Master fans from what I can see according to reviews.

To my ears the Be Quiet sounds noticeably quieter, if only a little, than the Cooler Master in use. I think the way they've designed the blades helps their fans sound quieter than they really are.

I recently bought a second hand PC using a Pure Rock Slim intending to harvest the motherboard and CPU to upgrade my main computer and ended up leaving the cooler on instead of switching it for my 212 because it seemed quieter and performs well.
Edited by: "daveroy" 19th Jan
Arkz19/01/2020 21:28

If you like it quiet, go for a 212 evo. Bigger fan doesn't have to spin as …If you like it quiet, go for a 212 evo. Bigger fan doesn't have to spin as fast to move same amount of air.


That doesn't account for the Cooler Master fan not being anything to write home about. Both are lower end fans but Be Quiet's are much better quality.
What a price. Hot.
Minstadave19/01/2020 20:42

This.


If you stick with your prism, best get new thermal paste for it it will help
Lately I have been using the Snowman from Ali Express, has been fantastic for the price.

linustechtips.com/mai…st/
Edited by: "Gormond" 20th Jan
I,m still using my old cooler master seidon 120 liquid cooler, my idle temps are between 22-27 degrees at all times, cant recommend it enough
Keep in mind this only work as a vertical cooler for AM4 (only exhausts upwards out of the top of the case) due to the mounting mechanism. Really poor design choice for such a great cooler.
Edited by: "reubenno" 20th Jan
Gormond20/01/2020 12:57

Lately I have been using the Snowman from Ali Express, has been fantastic …Lately I have been using the Snowman from Ali Express, has been fantastic for the price.https://linustechtips.com/main/topic/891730-cpu-cooler-performance-tier-list/


Which one?
rev620/01/2020 16:16

Which one?


I have tried the 4 (M-T4) and 6 (M-T6) heatpipe versions and didn't notice a huge difference, both of them were very good value.

EDIT: There is a newer 6 heatpipe model (M-X6) that can take 3 fans, I haven't tried that yet to see if it's any better.
Edited by: "Gormond" 20th Jan
I have 3 of these coolers in micro ATX towers, they are excellent. If you install and paste it correctly, you can use it on a <65W CPU and you won't hear the fan at all unless the CPU is 100% load in a warm environment. If you are just browsing, even with my PC on my desk and at night when the noise floor is minimal, its basically inaudible.

Cooler Master fans are not even in the same league if you are looking for silence.
JimJamJamie20/01/2020 16:52

I have 3 of these coolers in micro ATX towers, they are excellent. If you …I have 3 of these coolers in micro ATX towers, they are excellent. If you install and paste it correctly, you can use it on a <65W CPU and you won't hear the fan at all unless the CPU is 100% load in a warm environment. If you are just browsing, even with my PC on my desk and at night when the noise floor is minimal, its basically inaudible.Cooler Master fans are not even in the same league if you are looking for silence.


Doesn't the noise depend of your fan curves? I know with my setups I only ramp the fans up when they need to, to prevent the yo-yoing ramp up and down. Unless the fans are just noisy in general.
Edited by: "rev6" 20th Jan
Gormond20/01/2020 16:23

I have tried the 4 (M-T4) and 6 (M-T6) heatpipe versions and didn't notice …I have tried the 4 (M-T4) and 6 (M-T6) heatpipe versions and didn't notice a huge difference, both of them were very good value.EDIT: There is a newer 6 heatpipe model (M-X6) that can take 3 fans, I haven't tried that yet to see if it's any better.


They look good for the price!
Granted I haven't got one of these CPU coolers, however I used one of these 92mm fans a few days ago to replace one in a 30amp linear power supply.

I normally use a Sunon MagLev for applications like this but it was the same price and next day shipping from Amazon.

The fan is really well made and quiet, it is also quiet at lower speeds and has no "Clicking" like some fans can suffer with. If that's anything to go by then this should be a great cooler for the price.
Great price for a good cooler. I'm not a fan of push-pins so when looking at this last year I opted for the Cryorig m9i instead.

As @reubenno says on AM4 the Pure Rock Slim vents up rather than to the back of the case (or out of the side rather than the back if you have MB mounted flat.)
Edited by: "loonyjetman" 20th Jan
rev619/01/2020 21:40

It could be 20c at idle, due to ambient temps, CPU behaviour, and totally …It could be 20c at idle, due to ambient temps, CPU behaviour, and totally silent. But it could jump to 100c at load, so idle temps mean nothing, to me anyway.


I think it's an overstatement to say that idle temps mean nothing. It can help you assess the ability of the cooler to shift heat at lower fan speeds, but you also need a lot more information (CPU model, clocks, ambient temp, fan curve) to be able to take anything meaningful from it.
edanfalls21/01/2020 01:06

I think it's an overstatement to say that idle temps mean nothing. It can …I think it's an overstatement to say that idle temps mean nothing. It can help you assess the ability of the cooler to shift heat at lower fan speeds, but you also need a lot more information (CPU model, clocks, ambient temp, fan curve) to be able to take anything meaningful from it.


Ok.
Can this be used with a i9 9900 (Not k version)?
Great quality. I've got the 4 heatpipe BK009 (130W) for a few years - never had issues, and solid performer.
rev619/01/2020 21:40

It could be 20c at idle, due to ambient temps, CPU behaviour, and totally …It could be 20c at idle, due to ambient temps, CPU behaviour, and totally silent. But it could jump to 100c at load, so idle temps mean nothing, to me anyway.


I agree Wraith prism On a 3600 I was getting about 41-45 idle but would jump to 80,83,84 when playing a game
rev619/01/2020 21:08

Idle temps really don't mean much.



i disagree, idle temps show how well your cpu is cooled,running min programs, if its in the 40-50 degrees range it means your paste needs changing, either that or you need to sort your cooling out a lot better

its always wise to keep tabs on this every so often be it few weeks or months
n1ttygr1tty21/01/2020 11:31

i disagree, idle temps show how well your cpu is cooled,running min …i disagree, idle temps show how well your cpu is cooled,running min programs, if its in the 40-50 degrees range it means your paste needs changing, either that or you need to sort your cooling out a lot betterits always wise to keep tabs on this every so often be it few weeks or months


It could also mean the ambient temp is high in the room, or the case airflow needs work on, or even the fan curve for the CPU is set far too low.
Zen 2 clocks are very dynamic, and can bounce a lot up and down at idle, so using this to determine cooler and paste application just isn't reliable. Get a game running and get multitasking to see how it is.
Edited by: "rev6" 21st Jan
rev621/01/2020 11:33

It could also mean the ambient temp is high in the room, or the case …It could also mean the ambient temp is high in the room, or the case airflow needs work on.



yup if idle temps are in the high 30's or 40 degrees mark then I would suggest looking inside your case, and clean, by blowing all dust out give it a good clean, maybe reorganise cables, so they don't obstruct air flow./fans etc, check if fans are blowing the correct way, and also if need be reapply thermal paste
n1ttygr1tty21/01/2020 11:38

yup if idle temps are in the high 30's or 40 degrees mark then I would …yup if idle temps are in the high 30's or 40 degrees mark then I would suggest looking inside your case, and clean, by blowing all dust out give it a good clean, maybe reorganise cables, so they don't obstruct air flow./fans etc, check if fans are blowing the correct way, and also if need be reapply thermal paste


30-40C is perfectly normal for Zen 2 as far as I know.
No, you be quiet..
i have the dark rock pro. be quiet are my absolute faves
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