Jiushark JF13K Diamond Review: Innovative Air Cooling, Ideal for SFF Systems
The name Jiushark is probably unheard of by most American viewers, but the company is better known in Asia. The company was founded five years before him, the first part of its name (jiŭ) means the number 9 in Chinese, and its motto is ‘Simplicity first, back to basics’.
we Covered Juishark in the pastHere are some unique products like Jiushark M.2 Threean M.2 SSD cooler that uses dual heatpipe radiators and fans, similar to the mini CPU cooler.
Here we introduce the JF13K Diamond from Jiushark. This is a unique air cooler with an innovative form factor that incorporates top-down air cooling with a 240mm radiator. This new design actually best cooler list, or is it simply designed to attract attention? We’ll definitely have to test it, but first let’s take a look at what this cooler does and how it’s installed.
cooler specs
| cooler | Jiu Shark JF13K Diamond |
| Manufacturer’s suggested retail price | $40 |
| Installation size | 241 (length) x 121 (width) x 92 mm (height) |
| Radiator material | aluminum |
| heat pipe | 7x 6mm copper heat pipes |
| Socket compatibility | Intel: LGA 1700, 1200, and 115x |
| AMD: AM3, AM4, and AM5 | |
| base | nickel plated copper |
| Maximum TDP (our test) | 190W on Intel i7-13700K, 123W on Ryzen 7 7700X |
Packing and contents
Jiushark’s JF13K diamonds arrive in a package the size of a shoebox.
The package includes:
- 240mm radiator with 7 heatpipes
- Two slim 120mm fans, pre-installed
- thermal paste
- Mounts for all modern CPU sockets (including AM5 and LGA1700)
- Replacement AM5 backplate + Torx driver
- intel black plate
- screwdriver bolt adapter
install
Mounting the JF13K Diamond is very simple and easy, but not that easy. It can be installed by one person, but on Intel platforms it’s less of a hassle if you have someone to help you.
The installation process is fairly similar for both AMD and Intel platforms.
If you are using the AMD AM4 or AM5 platform, you will need to remove the default backplate first. Use the included Torx screwdriver to unscrew the CPU socket screw and the backplate will pop right off. Then press the replacement backplate onto the motherboard and re-tighten the Torx screws.
The next step is to prepare the mounting bar. First get a long screw and use the included standoffs to secure it to the mounting bar.
Secure the mounting bar to the base of the cooler using the 4 screws provided.
The next step is the hardest step. While pressing the cooler against the motherboard, you will need to use the provided bolts to secure the cooler to the backplate. On the AM5 it’s a bit easier to do this as the backplate is already secured when you do this but on the Intel it holds both the backplate and the cooler in place while you secure the bolts is needed.
Jiushark includes an adapter that allows you to use a screwdriver to secure the bolts if needed, but I had no problem threading the screws by hand.
Juy Shark JF13K Diamond Characteristics
240mm heatsink with top-down cooling
JF13K Diamond features an innovative 240mm heatsink with top-down cooling. Top-down cooling means that this product also provides airflow to his VRM heatsinks and DIMMs around the CPU.
Full RAM compatibility
The JF13K sits above the RAM, but leaves 2.32 inches of space for the DIMMs. That’s plenty of room for Corsair’s Dominator DIMM and probably pretty much any other DIMM, so don’t worry if your RAM is too expensive.
Small form factor (SFF) compatibility
With an overall height of just 92 mm (3.62 inches), the JF13K Diamond is ideal for space-constrained SFF computer cases.
7 Copper heat pipe
To ensure maximum cooling capacity in this unique form factor, Jiushark includes 7 heatpipes with JF13K Diamond.
2x slim 120mm fans
Coolers are more than just heatsinks and radiators. Bundled fans have a big impact on cooling and noise levels. JF13K Diamond comes pre-installed with two slim 120mm fans that are only 15mm (0.59 inch) high.
Many users have asked if upgrading to a more powerful fan will improve the cooling of the FJ13K Diamond. This subject is considered in the Thermal Results section.
| model | nameless |
| size | 120×120×15mm |
| fan rotation speed | 800-1,800RPM |
| air flow | Up to 64.5 CFM |
| air pressure | Up to 1.71mm H2O |
| Bearing type | hydraulic bearing |
| lighting | None on black model, ARGB lighting on white model |
preface
Modern CPUs, whether Intel or AMD, have difficulty cooling intensive workloads. In the past, on desktop CPUs he reaching 95C+ might have been cause for concern, but today’s processors consider it normal behavior. Similar behavior has existed in laptops for years due to cooling limitations in tight spaces.
Since last fall, Tom’s Hardware has been providing cooling reviews with Intel’s flagship i9-13900K, one of the most power hungry desktop CPUs on the market. To give you an idea of what it takes to cool the Intel behemoth, we’ve tested it with a variety of coolers, starting with basic low-end air coolers such as: Amazon Basic CPU Cooler Up to high end 420mm AIO such as Corsair iCUE H170i Elite.
It’s nice to see how Intel’s flagship reacts to different levels of cooling, but the results don’t necessarily correlate with lower tier CPUs. So, for today’s review, we’ll switch our focus to two of his more commonly purchased CPUs by end-users: AMD’s Ryzen 7 7700X CPU and Intel’s i7-13700K CPU.
Bending the LGA1700 socket
Keep in mind that besides the CPU cooler, there are many other factors that can affect cooling performance, such as the case you use and the fans attached to it. Your system’s motherboard can also affect this. especially, suffer from bendingThe result is poor contact between the cooler and the CPU.
To prevent bending from affecting cooling results, Thermalright LGA 1700 contact frame to our test equipment. If the motherboard is subjected to bending, the thermal results will be worse than those shown below. Not all motherboards are affected by this issue. We tested the Raptor Lake CPUs on two motherboards. And in one of them Thermalright his LGA1700 contacts after installing his frame saw a significant temp improvement but no longer in his 1 motherboard i see no difference in temperature at all I did.check out contact frame reviews for more information.
test method
All tests are performed in a room with an ambient temperature of 23 degrees. Multiple thermal tests are run on each CPU to test the cooler in different conditions, and acoustic measurements are made on each result. These tests include:
1. Noise normalization test at low noise level
2. “Out of the box”/default configuration thermal and acoustic testing
a. This means that Intel’s i7-13700K has no power cap and AMD’s Ryzen 7 7700X has no AMD’s default power cap.
b. Since the CPU reaches Tjmax in this scenario, the best way to compare cooling intensity is to record the total power consumption of the CPU package.
3. Thermal and Acoustic Testing in Power-Limited Scenarios
a. We tested with the Ryzen 7 7700X applying limits of 95W and 75W.
b. Intel’s i7-13700K tested with 175 W and 125 W limits applied.
The thermal results included were obtained during a 10 minute test run. To make sure this was long enough to strain the cooler, I ran both Thermalright’s Assassin X 120 R SE and DeepCool’s LT720 with Intel’s i9-13900K for 10 and 30 minutes. 30 minute Cinebench test. The results did not change at all for longer tests. The sustained average clock speed dropped 29 MHz for DeepCool’s LT720 and 31 MHz for Thermalright’s Assassin X 120 R SE. This is an incredibly small 0.6% difference in sustained clock speeds, a difference within the margin of error, and a 10 minute test is long enough to actually test the cooler properly. I know there is.
Test configuration – Intel LGA1700 platform
| CPU | Intel Core i7-13900K |
| tested air cooler | Jiu Shark JF13K Diamond |
| Thermal Light Frost Spirit 140 | |
| Montec D24 Premium | |
| motherboard | MSI Z690A Pro DDR4 |
| GPUs | Intel ARC A770 LE |
| case | be quiet! Silent Base 802, system fan set to speed 1 setting. |
| monitor | LG45GR95QE |
| Power supply unit | Cooler Master XG Plus 850 Platinum PSU |
Test Configuration – AMD AM5 Platform
| CPU | AMD Ryzen 7 7700X |
| tested air cooler | Jiu Shark JF13K Diamond |
| Thermal Light Frost Spirit 140 | |
| Montec D24 Premium | |
| motherboard | ASRock B650E Taichi |
| GPUs | Intel ARC A770 LE |
| case | Deep Cool CK560WH |
| monitor | LG45GR95QE |
| Power supply unit | Deep Cool PQ1000M |
Own tests performed using Jiushark’s Cooler
Like many of you reading this right now, I am new to JF13K diamonds. Gamers Nexus review. Steve’s review left him with two questions.
1. Does a top-down design help cool RAM DIMMs?
answer: Not pure speed.
I ran memtest64 for 20 minutes when this cooler was installed on an Intel i7-13700K with the XMP profile for RAM and compared it to a traditional air cooled cooler. DDR4 DIMM temperature increased by 4-5C. I would say that in the stock configuration it doesn’t help in lowering the temperature, but if the RAM module is overclocked it might be an advantage.
2. Will a stronger fan increase the heat capacity of this cooler?
answer: Technically yes, but not worth it.
Coupled with a slim 15mm fan with a relatively low noise level, many people (myself included) were curious to see if upgrading the cooler’s fan would improve cooling performance. The non-stock fan I tested was Cooler Master’s newly released Halo 2 series fan, and it didn’t affect cooling capacity at all.
These fans did not improve performance, so we took out some of the most powerful fans available. Cougar’s MHP 120 fan has a static pressure of 4.24 mm-H20 and an airflow of 82.5 CFM. Even with these very powerful fans, the cooling performance was only marginally improved, with the Intel i7-13700K adding only 10W of cooling power.
So while you can technically get better performance out of Jiushark’s cooler, it’s not really worth it. The default slim 120mm fan is more than powerful enough for a Jiushark cooler.
