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Review of Jiushark JF13K Diamond CPU cooler

14.11.2023 12:43

Specifications, delivery set and price

ManufacturerJiushark
Model name, linkJF13K Diamond
Model codeNo
Cooling system typefor the processor, air with active airflow of the radiator located on the heat pipes by two fans installed parallel to the plane of the motherboard
Compatibilitymat. boards with processor sockets:
Intel: 1700 , 115X and 1200;
AMD: AM5, AM4, AM2
Cooling capacityTDP 265 W
Fan typeaxial (axial), 2 pcs.
Fan modelno data
Fan power12 V, 0.21 A
Fan dimensions120×120×15 mm
Fan speed800—1800 (±10%) rpm
Fan performance39.9 — 109.6 m³/h (23.46 — 64.51 ft³/min)
Fan static pressure2.8–16.8 Pa (0.29–1.71 mm water column)
Noise level18.8—29.1 dBA
Fan bearingHydraulic Bearing
Fan lifeno data
Cooler Dimensions (H×W×D)92×121×241 mm
Radiator dimensions (H×W×D)77×121×241 mm
Cooler weight895 g
Radiator materialaluminum plates (0.4 mm thick) and copper heat pipes (7 pcs. ∅6 mm), copper heat sink
Thermal interface of the heat sinkthermal paste in a syringe
Connectionfan: 4-pin connector (power supply, rotation sensor, PWM control) into the connector for the processor cooler on the mat. board;
RGB fan lighting: 3-pin connector (addressable LED lighting — general, data, 5 V power) into the connector on the mat. board or controller
Peculiarities
  • white with ARGB fans or black
  • PWM control
  • total radiator area 12960 cm²
Delivery set (better to check before purchasing)
  • cooler assembly with fans
  • CPU mount kit
  • knurled key head
  • screwdriver
  • thermal paste in a syringe
  • installation guide

Description

We were interested in this unique cooler and took the opportunity to order it from China for testing. Although this model is apparently intended for the Chinese market, in these times of globalization and the elimination of borders and language barriers, almost anyone can have access to this cooler. The manufacturer offers two options: black without backlight or white with addressable multi-color and multi-zone fan lighting. We, of course, ordered the second option.

White

White

Black

Black

The processor cooler is supplied in a colorfully decorated box (one for both options) made of medium-thick corrugated cardboard.

The processor cooler is supplied in a colorfully decorated box (one for both options) made of medium-thick corrugated cardboard.

The kit includes installation instructions with pictures and explanatory notes in several languages. There is no Russian among them, but the instructions are clear even without translation.The hardware is primarily made of hardened steel (including mounting plates on the back of the motherboard) and has a durable galvanized or black paint finish. The surface of the radiator, except for the working plane of the heat sink, has a white matte finish.

The kit includes installation instructions with pictures and explanatory notes in several languages. There is no Russian among them, but the instructions are clear even without translation.

The hardware is primarily made of hardened steel (including mounting plates on the back of the motherboard) and has a durable galvanized or black paint finish. The surface of the radiator, except for the working plane of the heat sink, has a white matte finish.

The cooler is equipped with a remote radiator, to which heat from the processor is transferred through seven heat pipes. The tubes and the lower part of the heat sink are copper. The upper part of the heat sink is made of aluminum alloy. The tubes are soldered to the heat sink. The heat sink sole has a very fine concentric groove and is lightly polished. The surface of the sole is slightly convex towards the center with a difference of about 0.05-0.1 mm.

The cooler is equipped with a remote radiator, to which heat from the processor is transferred through seven heat pipes. The tubes and the lower part of the heat sink are copper. The upper part of the heat sink is made of aluminum alloy. The tubes are soldered to the heat sink. The heat sink sole has a very fine concentric groove and is lightly polished. The surface of the sole is slightly convex towards the center with a difference of about 0.05-0.1 mm.

There is no pre-applied thermal interface, but the manufacturer included a small syringe with thermal paste in the cooler. The tests used high-quality thermal paste from another manufacturer. Looking ahead, we will demonstrate the distribution of thermal paste after the tests are completed. On Intel Core i9-13900K processor:

There is no pre-applied thermal interface, but the manufacturer included a small syringe with thermal paste in the cooler. The tests used high-quality thermal paste from another manufacturer. Looking ahead, we will demonstrate the distribution of thermal paste after the tests are completed. On Intel Core i9-13900K processor:

And on the base of the heat sink:

And on the base of the heat sink:

It can be seen that the thermal paste was distributed in a thin layer over almost the entire plane of the processor cover, and its excess was squeezed out at the edges. The tight contact patch is large.In the case of the other two processors, the situation is similar. In the case of the AMD Ryzen 9 5950X processor. On CPU:

It can be seen that the thermal paste was distributed in a thin layer over almost the entire plane of the processor cover, and its excess was squeezed out at the edges. The tight contact patch is large.

In the case of the other two processors, the situation is similar. In the case of the AMD Ryzen 9 5950X processor. On CPU:

On the base of the heat sink:

On the base of the heat sink:

For AMD Ryzen 7 1800X processor:

For AMD Ryzen 7 1800X processor:

At the base of the heat sink

At the base of the heat sink

The radiator consists of two stacks of aluminum plates tightly fitted onto heat pipes. The heat pipes are spaced apart, which should help improve the efficiency of the cooler.

The radiator consists of two stacks of aluminum plates tightly fitted onto heat pipes. The heat pipes are spaced apart, which should help improve the efficiency of the cooler.

Standard size of complete fans is 120 mm.

Standard size of complete fans is 120 mm.

They are low profile with a height of 15 mm versus 25 mm for typical ones. The fans support PWM control and are equipped with multi-color multi-zone backlighting (ARGB type). To control the backlight, it is suggested to use the motherboard or an external controller. An example of how the backlight works can be seen in the video below:

The cooler is installed perpendicular to the RAM connectors and completely covers them from above (in the case of Intel processors, it can be installed parallel to these connectors, but this is unlikely to make practical sense).

This places a limitation on the maximum height of memory modules. In the photo above, modules with a height of 45 mm are installed — another 3 mm to spare. When installing the cooler rotated 180 degrees relative to the position in this photo, the margin is greater — 13 mm. That is, you can use modules with a height of up to 48 or up to 58 mm. Manufacturer's drawing with dimensions:

Note that the cooler blows well over the memory modules and voltage regulation unit (VRM) heatsinks, which helps cool them and improves the stability of the system as a whole.

The manufacturer indicates that the cooler is compatible with microATX and ATX motherboards with a width of 235-245 mm. You also need to make sure that the installation of the cooler is not interfered with by other PC components, for example, fans installed in the case.

Note that the design of the fastener eliminates too weak or too strong a clamp (you just need to tighten the nuts until they stop, without using excessive force). At the same time, installing the cooler is inconvenient, since the nuts need to be tightened on the back side of the motherboard, holding the cooler. That is, practically the only option if you work alone is to first install the cooler on the processor, and only then install the motherboard with the cooler assembly into the PC case.

Testing

Below in the summary table we present the results of measurements of a number of parameters not specified by the manufacturer.

Heat sink platform dimensions, mm45×38
Fan power cable length, cm35
Fan lighting cable length, cm36+7 to feed-through connector
Backlight adapter length, cm20.5

Determining the dependence of the cooler fan speed on the PWM duty cycle and/or supply voltage

A good result is a smooth increase in rotation speed when the fill factor (FC) changes from 15% to 100% and a fairly wide adjustment range. Note that with a short circuit of 0%, the fan does not stop, therefore, in a hybrid cooling system with passive mode at minimum load, such fans will have to be stopped by reducing the supply voltage.

The range of adjustment using voltage in this case is slightly wider. The fan stops when the voltage drops to 1.9 V and starts from 2.0/2.2 V. It is quite acceptable to connect fans to a source with a voltage of 5 V.

Determining the dependence of the temperature of the Intel Core i9-13900K processor when it is fully loaded on the rotation speed of the cooler fan(s)

In this test, all cores of the Intel Core i9-13900K processor ran at 4.0 GHz .

In fact, under test conditions, this processor at 24 degrees of ambient air overheats at a short circuit of 15% (which is approximately 710 rpm), since some cores heat up to a critical temperature for this processor of 100 °C.

Determining the noise level depending on the rotation speed of the cooler fan(s)

It depends, of course, on individual characteristics and other factors, but in the case of coolers somewhere from 40 dBA and above, the noise, from our point of view, is very high for a desktop system, from 35 to 40 dBA the noise level is tolerable, below 35 dBA the noise from the cooling system will not stand out much from the background of typical low-noise PC components — case fans, on the power supply, on the video card, as well as hard drives, and somewhere below 25 dBA the cooler can be called conditionally silent. The background level was 15.9 dBA (the conventional value shown by the sound level meter). At maximum fan speed this cooler is quite loud.

Plotting the dependence of real maximum power on noise level

Let's try to move away from test bench conditions to more realistic scenarios. Let’s assume that the temperature of the air taken in by the cooling system fan can rise to 44°C, but you don’t want to raise the processor temperature under maximum load above 80°C. Limiting ourselves to these conditions, let us plot the dependence of the real maximum power (denoted as Pmax (previously we used the designation Max. TDP)) consumed by the processor on the noise level

Taking 25 dBA as a criterion for conditional noiselessness, we obtain the approximate maximum power of processors such as Intel Core i9-13900K that correspond to this level, which is about 165 W. Hypothetically, if you ignore the noise level, the power limits can be increased to somewhere around 190 W. Let us clarify once again: this is under severe conditions of blowing air heated to 44 degrees onto the radiator and for a maximum processor temperature of 80°C (in principle, 100°C is acceptable). As the ambient temperature decreases or the maximum permissible processor temperature increases, the specified power limits for silent operation and maximum power increase.

Comparison with other coolers when cooling the Intel Core i9-13900K processor

Using this link, you can calculate power limits for other boundary conditions (air temperature and maximum processor temperature) and compare this cooler with several other coolers tested using the same method (the list is growing and is therefore included on a separate page). Note that when the main tests are transferred to a new processor, the Intel Core i9-13900K, continuity with previous tests is not 100% maintained, but according to preliminary data, the efficiency of coolers in the case of the Intel Core i9-13900K is approximately 1.2 times lower, than with the Intel Core i9-7980XE processor used in the earlier series of tests. This will allow comparison with coolers. previously tested.

Testing on AMD Ryzen 7 1800X processor

Dependence of the temperature of the AMD Ryzen 7 1800X processor when fully loaded on the rotation speed of the cooler fan (all processor cores operated at a fixed frequency of 3.625 GHz (multiplier 36.25)):

In this test, our AMD Ryzen 7 1800X processor at 24 degrees ambient air does not overheat even with a short circuit of 15% (which is approximately 680 rpm), since the maximum permissible temperature of this processor is 95 °C.

Dependence of the actual maximum power consumed by the processor on the noise level (air temperature — 44 °C, processor temperature — no higher than 80 °C):

Taking 25 dBA as a criterion for conditional noiselessness, we obtain the approximate maximum power of processors such as AMD Ryzen 7 1800X corresponding to this level, which is about 130 W. If you do not pay attention to the noise level, the power limits can be increased somewhere up to 145 W. Let us clarify once again: this is for the above conditions.

Comparison with other coolers when cooling the AMD Ryzen 7 1800X processor

Using this link, you can calculate power limits for other boundary conditions (air temperature and maximum processor temperature) and compare this cooler with several other coolers tested using the same method (the list is growing and is therefore included on a separate page).

Testing on AMD Ryzen 9 5950X processor

As an additional test, we decided to see how the cooler copes with cooling the AMD Ryzen 9 5950X. Processors of the Ryzen 9 family are assemblies of three crystals under one cover. On the one hand, increasing the area from which heat is removed can improve the cooling capacity of the cooler, but on the other hand, the design of most coolers is optimized for better cooling of the central area of the processor. Apparently, because of these features, there is an opinion that choosing an air cooler for the new generation of top-end Ryzen processors is not very easy.

Dependence of the temperature of the AMD Ryzen 9 5950X processor when it is fully loaded on the rotation speed of the cooler fan (all processor cores operated at a fixed frequency of 3.0 GHz (multiplier 30)):

In fact, under test conditions, this processor at a given frequency at 24 degrees of ambient air does not overheat with a short circuit of 25% (which is approximately 890 rpm of the fan), since the maximum temperature for the AMD Ryzen 9 5950X is 90 °C.

Dependence of the actual maximum power consumed by the processor on the noise level (air temperature — 44 °C, processor temperature — no higher than 80 °C):

Taking 25 dBA as a criterion for conditional noiselessness, we find that the maximum processor power corresponding to this level is about 123 W. If you do not pay attention to the noise level, the power limit can be increased to somewhere around 136 W. Let us clarify once again: this is for the above conditions.

Comparison with other coolers when cooling the AMD Ryzen 9 5950X processor

Using this link, you can calculate power limits for other boundary conditions (air temperature and maximum processor temperature) and compare this cooler with several other coolers tested using the same method (the list is growing and is therefore included on a separate page). For a cooler with a relatively small radiator, the result is good.

Conclusions

Our testing has shown that the Jiushark JF13K Diamond cooler can be used with processors such as Intel Core i9-13900K (LGA1700), which have a real consumption of about 165 W, even taking into account a possible increase in the temperature inside the case up to 44 °C and the maximum processor temperature is not higher 80 °C will maintain a very low noise level of 25 dBA and below. In the case of the AMD Ryzen 7 1800X, under the same conditions, the consumption can be 130 W, and in the case of the AMD Ryzen 9 5950X — 123 W. If the cooling air temperature decreases, the processor temperature threshold increases, or noise requirements are less stringent, the power limits can be increased. The advantages of the cooler include its low height (92 mm), combined with a relatively high cooling capacity. However, you need to take into account limited compatibility with motherboards and high memory modules. Fans of modding will appreciate multi-color and multi-zone static or dynamic fan lighting in the white version, while connoisseurs of strict classics can choose the black version of the cooler.