be quiet! Pure Rock Slim 3, CPU Cooler, 130 W TDP, 100 mm PWM be quiet! Fan, 3 Heatpipes, Asymmetric Design, Slim Tower
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AI Verdict
This 130W TDP air cooler with a 100mm fan and 3 heatpipes is for compact PC cases and entry-level to mid-range CPUs.
This cooler is a strong fit for specific use cases like compact builds and entry-level systems due to its 127mm height and 130W TDP. It's not a general-purpose cooler for all desktop CPUs, especially higher-wattage models.
If you need more cooling capacity, look for coolers with a TDP rating above 130W and larger fan sizes (120mm or 140mm) or dual-tower designs.
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Pros
- Compact tower design (127mm height) allows full RAM bank configuration in cases with limited space.
- Offers a 130W TDP cooling capacity, suitable for many entry-level to mid-range processors.
- Equipped with 3 nickel-plated 6mm heat pipes for efficient heat transfer to cooling fins.
- Features an easy-to-use mounting system with dedicated AMD and Intel frames, including pre-applied thermal paste.
- Operates with a maximum noise level of 24.8 dB(A) from its 100mm PWM fan.
Cons
- Cooling capacity is limited to 130W TDP, making it unsuitable for high-power CPUs like Intel Core i9-13900K.
- Single tower slim design may not provide sufficient cooling for heavily overclocked processors.
- The 100mm fan operates at a fixed 1500 RPM, which might not offer enough airflow for demanding loads.
- While compatible with LGA 1851, 1700, AM5, and AM4, its cooling performance is best suited for lower-tier CPUs on these platforms.
Dimension Scores
The cooler provides a 130W TDP cooling capacity, which is efficient for its compact size but not for high-end CPUs.
The 100mm PWM fan maintains a low maximum noise level of 24.8 dB(A), which is very quiet for a CPU cooler.
It features 3 nickel-plated 6mm heat pipes and an aluminum fin stack, with a black top cover for aesthetics.
The single 4-pin PWM fan cable is straightforward, but there are no integrated cable routing features on the cooler itself.
Best For
- Small form factor PC builds where space is restricted.
- Entry-level gaming systems using CPUs like Ryzen 5 9600X or Core i5-13400F.
- Quiet multimedia systems where low noise output (max 24.8 dB(A)) is a priority.
- Users needing an easy installation process with pre-applied thermal paste and dedicated mounting hardware.
Not Recommended For
- High-end CPUs like the 9800x3d or Intel Core i9-13900K, which require more robust cooling.
- Overclocking enthusiasts pushing their processors beyond stock TDP limits.
- Large PC cases where a bigger, more powerful cooler would fit and perform better.
Watch Out For
- The 130W TDP limit means it won't keep high-power CPUs below 80-85°C at peak load, even in a small case.
- While it fits many modern sockets, users with high-performance CPUs on those sockets will find its cooling insufficient.
- The single 100mm fan, despite being quiet, might not move enough air for sustained heavy workloads compared to larger fan setups.
Full Specifications
| ASIN | B0FVW7FHW3 |
| Brand | be quiet! |
| Voltage | 12 Volts |
| Wattage | 2.77 watts |
| Material | Plastic, Nickel |
| Item Weight | 1.39 pounds |
| Noise Level | 24.8 Decibels |
| Manufacturer | be quiet! |
| Cooling Method | Air |
| Number of Items | 1 |
| Air Flow Capacity | 35.5 Cubic Feet Per Minute |
| Item model number | BK047 |
| Compatible Devices | Desktop |
| Product Dimensions | 2.9"L x 3.9"W x 5"H |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 1700 RPM |
| Global Trade Identification Number | 04260052193150 |
What Buyers Say
Users report that this cooler is surprisingly effective for its size, managing to keep CPUs like a 9600X in the 80-85°C range under peak load in small cases. The installation process is frequently mentioned as being straightforward due to dedicated mounting frames and minimal screws. While it's praised for its quiet operation, some users on Reddit suggest it's primarily for mid-range CPUs and recommend larger, dual-tower coolers for more powerful processors.
“Dude, this thing is actually pretty good for my tiny PC, keeps my i5 chill and it's so quiet I forget it's even running, but don't even think about putting it on a monster CPU.”
Common Praise
- Keeps mid-range CPUs like a 9600X at acceptable temperatures (80-85°C) even under peak load in small cases.
- The 100mm PWM fan operates very quietly, even at maximum RPM.
- Installation is easy and intuitive with dedicated AMD and Intel mounting frames and few screws.
- Compact design (127mm height) ensures compatibility with limited case space and full RAM clearance.
Common Complaints
- Not sufficient for high-end CPUs or heavy overclocking, as its 130W TDP limits its cooling potential.
- Some users feel it's only suitable for entry-level to mid-range processors (i5, r5, 65W TDP CPUs).
- While quiet, the single 100mm fan might not provide enough airflow for extremely demanding, sustained workloads.
Ownership Tips
- The pre-applied thermal paste saves a step during initial build, but you'll need to reapply your own for future maintenance.
- Its slim profile really does prevent RAM interference, which is a common headache with larger coolers.
- The black top cover helps it blend into most builds, making it less visually obtrusive than some other budget coolers.
- Even with its 130W TDP, good case airflow is still important to maximize its cooling performance, especially for CPUs at the higher end of its recommended range.
Frequently Asked Questions
What CPUs is the Pure Rock Slim 3 compatible with?
It's compatible with Intel sockets LGA 1851, 1700, 1200, 1150, 1151, 1155 and AMD sockets AM5, AM4.
How quiet is this CPU cooler?
The 100mm PWM fan operates at a maximum noise level of 24.8 dB(A), making it suitable for quiet systems.
Will this fit in a small PC case?
Yes, its compact tower design (127mm height) is specifically made for PC cases with limited space and offers full RAM compatibility.
Does it come with thermal paste?
Yes, the Pure Rock Slim 3 comes with pre-applied thermal paste, simplifying the installation process.
Is this cooler good for overclocking?
No, with a 130W TDP, this cooler is not designed for overclocking high-power CPUs; it's better suited for low- to mid-range processors at stock speeds.
Buying Guide
When picking a CPU cooler, you're trying to match its ability to dissipate heat (TDP) with how much heat your CPU generates. If your CPU makes more heat than the cooler can handle, your system will slow down or even crash. Also, consider the physical size of the cooler and if it will fit in your PC case and clear your RAM modules.
TDP (Thermal Design Power)
This number tells you the maximum amount of heat, in watts, that the cooler can effectively dissipate. Think of it like a car's towing capacity: if your CPU's heat output (like the weight of a trailer) exceeds the cooler's TDP, it won't perform well. The Pure Rock Slim 3 handles 130W TDP.
Fan Size (100mm)
Larger fans generally move more air at lower RPMs, which means better cooling and less noise. A 100mm fan is smaller than common 120mm or 140mm fans, contributing to the cooler's compact size but potentially limiting maximum airflow.
Heatpipes (3 nickel-plated)
Heatpipes are crucial for quickly transferring heat away from the CPU base to the cooling fins. More heatpipes, or thicker ones, usually mean better heat transfer. Three 6mm nickel-plated heatpipes are a solid setup for a cooler of this size.
Alternatives
If you have a CPU with a TDP over 130W or plan to overclock, look for coolers with a higher TDP rating (e.g., 180W+), larger 120mm or 140mm fans, or a dual-tower heatsink design.
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