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The review and testing of the motherboard ASUS Prime Z390-A

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In the range of ASUS, there are 19 motherboard on the chipset Intel Z390. Potential buyer can choose from models like the elite series ROG or TUF ultra-reliable and Prime, has a more democratic prices. Received by us on the testing Board just refers to the last series, and even in Russia is slightly more than 12 thousand rubles, for solutions Intel Z390 relatively inexpensive. We will focus on models of the ASUS Prime Z390-A.

Having on Board all necessary to create a game system or a productive workstation, fee slightly simplified developers touched on almost everything from the CPU power circuit and ending ports. Thus all the possibilities for overclocking the CPU and RAM in the ASUS Prime Z390-A is. More about all this we will tell you in this article.

#

The technical characteristics and cost

Supported processors Intel Core i9 / Core i7 / Core i5 / Core i3 / Pentium / Celeron
performed by LGA1151 eighth and ninth generation microarchitecture Core
Chipset Intel Z390 Express
Memory subsystem 4 × DDR4 DIMM UN-buffered memory up to 64 GB;
dual channel mode memory;
support modules with frequency of 4266(O. C.)/4133(O. C.)/4000(O. C.)/3866(O. C.)/3733(O. C.)/
3600(O. C.)/3466(O. C.)/3400(O. C.)/3333(O. C.)/3300(O. C.)/3200(O. C.)/3100(O. C.)/
3066(O. C.)/3000(O. C.)/2800(O. C.)/2666/2400/2133 MHz;
support Intel XMP (Extreme Memory Profile)
GUI The integrated graphics core processor allows you to use the ports HDMI and DisplayPort;
supports resolutions up to 4K inclusive (4096 × 2160 at 30 Hz);
maximum shared memory of 1 GB;
support Intel InTru 3D, Quick Sync Video, Clear Video HD Technology, Insider
Connectors for expansion boards 2 PCI Express x16 3.0, modes of x16, x8/x8, x8/x4+x4 and x8+x4+x4/x0;
1 slot PCI Express x16 (mode x4), Gen 3;
3 PCI Express x1 slots, Gen 3
The scalability of the video NVIDIA 2-way SLI Technology;
AMD 2-way/3-way CrossFireX Technology
The storage interface Intel Z390 Express:
– 6 × SATA 3 bandwidth of up to 6GB/s;
– support RAID 0, 1, 5 and 10, Intel Rapid Storage, Intel Smart Connect Technology and Intel Smart Response, NCQ, AHCI and Hot Plug;
– 2 × M. 2, bandwidth of each up to 32 GB/s (M. 2_1 supports only PCI Express memory length from 42 to 110 mm, M. 2_2 supports SATA and PCI Express storage devices ranging in length from 42 to 80 mm);
– support Intel Optane Memory
Network
interfaces
Gigabit Ethernet controller Intel Gigabit LAN I219V (10/100/1000 Mbit);
with the support of technology ASUS Turbo LAN Utility;
technology support ASUS LAN Guard
Audio 7.1 CH HD audio codec Realtek ALC S1220A;
the ratio of signal to noise ratio (SNR) – 120 dB;
the level of SNR on the linear input 113 dB;
audio Nichicon fine gold audio caps (7 pieces);
preregulator power;
built-in headphone amplifier;
the different layers of the PCB for the left and right channels;
isolated from PCB sound card
USB interface Intel Z390 Express:
– 6 USB 2.0/1.1 ports (2 on back panel, 4 connected to the connectors on the system Board);
– 4 port USB 3.1 Gen1 (2 on back panel, 2 are connected to the connectors on the system Board);
– 4 port USB 3.1 Gen2 (back panel Board, 3 Type-A and Type 1-C);
– 1 port USB 3.1 Gen1 (connects to the connector on the system Board)
Connectors and buttons on the rear panel Combo PS/2 port and two USB ports 2.0/1.1;
ports USB 3.1 Gen 2 Type-C and USB 3.1 Gen 2 Type-A;
HDMI and DysplayPort;
two port USB 3.1 Gen 2 Type-A;
two port USB 3.1 Gen 1 Type-A and network LAN-socket RJ-45;
1 optical S/PDIF output interface;
5 3.5 mm gold-plated audio connectors
Internal connectors on the PCB 24-pin ATX power connector;
8-pin ATX 12V power;
6 SATA 3;
2 M. 2;
4-pin connector CPU fan with PWM support;
4-pin connector for the CPU_OPT fan with PWM support;
2 4-pin connector for fan Chassis Fan with PWM support
4-pin connector for the pump AIO_PUMP;
4-pin connector for the pump W_PUMP;
connector EXT_Fan;
M. 2 socket Fan;
connector temperature sensor;
2 4-pin Aura addressable RGB Strip connector;
USB 3.1 Gen 1 to connect 1 port Type-C;
USB 3.1 Gen 1 to connect 2 ports;
2 USB 2.0/1.1 for connecting 4 ports;
connector TPM (Trusted Platform Module);
COM port connector;
connector S/PDIF;
the Thunderbolt connector;
a group of connectors for the front panel (Q-Connector);
audio connector for the front panel;
switch MemOK!;
connector CPU OV;
the power button;
connector Clear CMOS;
connector Node
BIOS 128 Mbit AMI UEFI BIOS with multilingual interface and the graphical user interface;
ACPI 6.1;
support PnP 1.0 a;
support SM BIOS 3.1;
technology support ASUS EZ Flash 3
Controller I/O Nuvoton NCT6798D
Corporate functions, technologies and features 5-Way Optimization by Dual Intelligent Processors 5:
– 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Xpert, 4, and Turbo Core App.
– Procool Power connector design;
TPU:
– Auto Tuning, TPU, GPU Boost;
Fan Xpert4:
– Fan Xpert 4 featuring Fan Auto Tuning function and multiple thermistors selection for optimized system cooling control;
ASUS 5X Protection III:
– ASUS SafeSlot Core: Fortified PCIe Slot prevents damage;
– ASUS LANGuard: LAN Protects against surges, lightning strikes and static-electricity discharges!;
– ASUS Overvoltage Protection: World-class circuit-protecting power design;
– ASUS Stainless Steel Back I/O: 3X corrosion-resistance for greater durability!;
– ASUS DIGI+ VRM: Digital 9 phase power design with Dr. MOS;
ASUS Optimem II:
– Improved DDR4 Stability;
ASUS EPU:
EPU;
ASUS Exclusive Features:
– MemOK! II;
– AI Suite 3;
– Ai Charger;
ASUS Quiet Thermal Solution:
– Stylish Fanless Design Heat-sink solution & MOS Heatsink;
– ASUS Fan Xpert 4;
ASUS EZ DIY:
– ASUS O. C. Tuner;
– ASUS CrashFree BIOS 3;
– ASUS EZ Flash 3;
– ASUS UEFI BIOS EZ Mode;
ASUS Q-Design:
– ASUS Q-Shield;
– ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED);
– ASUS Q-Slot;
– ASUS Q-DIMM;
– ASUS Q-Connector;
AURA: RGB Lighting Control;
Turbo APP:
– featuring tuning system performance for selected applications;
M. 2 Onboard
Form factor, dimensions (mm) ATX, 305 × 244
Operating system support Windows 10 x64
The warranty of the manufacturer, years 3
Minimum retail value for you! 12 460

#Packaging equipment

ASUS Prime Z390-sealed in A small cardboard box on the front side which shows the Board itself is marked with the model name and series and lists the technologies supported. Not forgotten and a mention of the support system backlight ASUS Aura Sync.

 

According to the information on the reverse side of the Board you can find almost everything, including characteristics and key features. Very briefly the characteristics of the product mentioned on the sticker from the end of the box.

Inside the box for more protect to pay no — she’s just laying on a cardboard tray and sealed in anti-static bag.

The contents are pretty standard: two SATA cable, plug on the rear panel, CD with drivers and utilities connection bridge for 2-way SLI, manual and screws to secure the drives in the M. 2 ports.

The bonus is a coupon for a twenty percent discount when buying brand cables in the store CableMod.

Board is produced in China, and provides a three year warranty. We will add that in Russian stores it is already being sold at a price of 12,5 thousand rubles.

#Design and features

Design ASUS Prime Z390-A modest and concise. On the PCB there is no bright inserts or the attention-grabbing detail, and all the colors consists of a combination of white and black color and silvery color of the radiators. This fee can hardly be called boring, even though it’s the last thing you can pay attention to when choosing the basis for the system average performance.

 

From the individual design elements highlight the plastic covers on the ports I / o and the chipset.

 

They have semi-transparent Windows, through which is visible light. We will add that the fee is equal to 305 × 244 mm, that is, it refers to the ATX format.

Among the main advantages of the ASUS Prime Z390-A manufacturer allocates power circuit elements DrMOS, eight-channel sound Crystal Sound, as well as support for all modern ports and interfaces.

Before a detailed analysis of the components of the motherboard will give their location on the diagram provided in the instruction manual.

 

On the rear panel of the Board displayed eight USB ports, three types, combo PS/2 port, two video outputs, mains socket, optical output and five audio connectors.

As you can see, all modestly and without frills, but it is unlikely the developers here can be accused of compromise, because the base set of ports, is implemented here.

All the radiators and shrouds are attached to the PCB with screws. Their removal took less than a couple of minutes, then ASUS Prime Z390-A appeared in its natural form.

The textolite is not overloaded with elements, a lot of free of chip areas, but it is quite typical for motherboards of a mainstream segment.

CPU socket LGA1151-v2 is not characterized by some signature features — it is completely standard.

In the specifications of the motherboard claimed to support all modern Intel processors this socket, including the recently released Intel Core i9-9900KFfor which you need to flash BIOS 0702 or later.

The system processor power on ASUS Prime Z390-A is organized according to the scheme 4 × 2 + 1. In the power circuit uses assemblies DrMOS integrated drivers NCP302045 production ON Semiconductor is able to withstand peak loads up to 75 A (the average current is 45 A).

Power management on-Board digital controller Digi+ АЅР1400СТВ.

The power Board is provided by two connectors — 24 – and 8-pin.

 

The connectors are made of ProCool technology to which the stated more secure connection to cables with lower resistance and improved heat distribution. This visual differences from the normal connectors on the other boards was revealed.

No differences in Intel Z390, crystal which is in contact with a small heat sink through thermal pads.

However, here they could not be.

Board is equipped with four DIMM slots for RAM standard DDR4, which in pairs are painted in different colors. Priority to install one pair of modules are light gray slots that are marked directly on the PCB.

The total amount of memory can reach 64 GB, and the maximum frequency stated in the specs – 4266 MHz. However, to achieve this frequency will have to try to pick up as a good processor and the memory, but proprietary technology OptiMem II should be possible to facilitate rest. By the way, the list of officially tested modules on the Board today contains 17 pages of fine print, but even if your memory it will not, then with a probability of 99.9 % for Prime Z390 Is A will to work with her, because motherboards are extremely omnivorous to the memory modules and, as a rule, well, they dispersed. We would add that the power system memory single channel.

ASUS Prime Z390-A is equipped with six PCI Express slots. Three of them are made in a design of x16, and two slots have a metallic shell. First x16 slot is connected to the processor and the processor uses 16 lines PCI-E.

The second slot of the same form factor can only work in mode PCI-Express x8, so the fee is, of course, supports NVIDIA SLI and AMD CorssFireX, but only in combination x8/x8. The third long PCI-Express slot only works at x4 speed using chipset line. In addition, the Board has three PCI-Express 3.0 x1, also implemented by the chipset Intel.

The operation mode of the PCI-Express implemented circuits-switches ASM1480 production ASMedia.

As for the video output Board with built-in graphics core, they are implemented by the controller ASM1442K.

The Board has the standard six SATA III ports with a throughput of up to 6GB/s implemented by the possibilities of the same set of system logic Intel Z390. In their placement on the PCB of the developers do not have anything wise and arranged all the connectors of one group in a horizontal orientation.

There are on-Board ports and M. 2 in the amount of two pieces. Top, M. 2_1, supports PCI-E and SATA devices up to a length of 8 cm and when you install a SATA drive-type disables the port SATA_2.

At the bottom you can only install PCI-E drives up to 11 cm, additionally it is equipped with a plate heat sink with thermal pad.

A total of 17 on-Board USB ports. Eight of them are displayed on the rear panel, where you can find two USB 2.0, two USB 3.1 Gen1, and four USB 3.1 Gen2 (one of the format Type-C). Six USB 2.0 can be connected to two pads on the Board (use an additional hub), in the same way you can display and dual USB 3.1 Gen1. In addition to them, to the Board connects a single USB 3.1 Gen1 for the front panel of the system unit. A very comprehensive set of ports.

As the network controller on ASUS Prime Z390-A widely used common chip Intel I219-V .

 

Hardware protection against static electricity and surge will provide a block of LANGuard and software optimization of traffic it is possible to spend utility Turbo LAN.

The basis of the audio section of the Board is a processor Realtek S1220A with the stated ratio of signal to noise ratio (SNR) on the linear audio output of 120 dB and SNR level on line input – 113 dB.

Such values are achieved including through the use of Japanese capacitors with premium, the breeding left and right channels in different layers of the PCB, insulation audiosony on the PCB from the rest of the elements of the conductive strip.

At the software level supported surround sound technology DTS Headphone:X.

For monitoring and fan control on the Board is provided Nuvoton NCT6798D.

In total, facilities include seven fans, each of which can be configured individually by PWM signal or voltage. There is a separate socket for connection of pump cooling system, outstanding current 3 A.

Connector EXT_FAN is possible to connect an expansion Board with extra connectors for fans and thermal sensors, which then can also be controlled from BIOS.

Setting the automatic overclocking on ASUS Prime Z390-A is implemented by the microcontroller TPU KB3724Q.

To connect to the external tapes of led backlighting, the Board provides two connectors for Aura RGB.

Supported tape length up to three meters. On the PCB Board highlighted area casing exits and a small portion of the radiator of the chipset, and adjusting the illumination color and choice of modes available through the app ASUS Aura.

Other connectors on the bottom edge of the PCB, select the new connector NODE, which can connect the power supply units ASUS for the monitoring of energy consumption and fan speed.

But the lack of an indicator POST-codes on the Board are not happy, even though her mainstream class.

Cooling the VRM circuits Board involved two separate aluminum radiator with pads. In turn, the chipset consumes less than 6 watts, cool small 2-3 mm plate.

The same thickness and the plate to drive in the lower M. 2 port. Moreover, the manufacturer promises a 20-degree decrease in temperature storage in comparison with the indicators at all without the radiator.

SOURCE

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PC / Laptop

The Intel Core i5-9400F: fake Coffee Lake Refresh

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Despite the obvious difficulties with the production of 14-nm chips in sufficient quantities, Intel continues to gradually expand the lineup of Core processors, the ninth generation, known under the code name Coffee Lake Refresh. However, given it to her with varying degrees of success. That is, formally in the lineup really added new products, but in retail they appear very reluctant, and some models presented immediately after the New year novelties have been unable to check in the stores until now.

However, based on official data, now for the platform LGA1151v2 there are already at least nine desktop models of the Core pertaining to the thousandth of the series, including processors with four, six and eight cores. Moreover, the composition of this family includes not only the obvious representatives with predictable characteristics, but also unexpected CPU that is different from all predecessors ideologically. We are talking about CPUs F-series mass desktop chips, the specifications of which is not stated integrated graphics core.

Surprising in their appearance that these deals have expanded the range of consumer Intel for the first time in the last eight years, during which the company offered for mass segment only solution with integrated graphics. But now something has changed and the microprocessor giant has been forced to revise his principles. And we even know that: failures in planning and difficulties with the commissioning process with a 10-nm standards has led to a serious lack of Intel on the market, to mitigate which the company is trying by all means. The release of processors without integrated graphics – one of the rather apparent measures aimed at achieving this goal. Thanks to it the manufacturer has been able to set a serial processor previously considered defective semiconductor workpiece with a corrupted graphics core, which even at eight Coffee Lake Refresh “biting” up to 30 % of the area is 174 mm crystal. In other words, such a measure capable of increasing the yield and significantly reduce waste.

However, if Intel is the point in the release of processors F-series is quite obvious, that Benet from the emergence of such offers consumers the issue is very controversial. The chosen manufacturer of the tactic is that trimmed at its core, the processors are implemented without any discounts, for the same price as their “full” counterparts. In order to fully understand this situation, we decided to take the tests one of the Core lineup of the ninth generation, devoid of the integrated graphics and try to find his hidden advantages.

As the object for investigation was selected as Core i5-9400F Junior six-core CPU generation Coffee Lake Refresh. This chip of particular interest: its predecessor, the Core i5-8400, at the time, was very popular thanks to very attractive ratio of price and performance. Officially announced four months ago, Core i5-9400 (no F in the name) offers a slightly higher frequency such at the same price, but selling him is practically impossible. But the Core i5-9400F represented on the shelves everywhere, and, moreover, since the deficit of this model does not apply, its real value in retail as close as possible to recommended. However, this does not Core i5-9400F a good option for “basic” configurations automatically, because now AMD in the same price category offers six-core processors Ryzen 5, which, in contrast to the Core i5 series have the support for multithreading (SMT). That is why today’s quiz promises to be especially meaningful: it must give an answer to several questions and clearly show whether the Core i5-9400F chance to repeat the success of the legendary Core i5-8400.

#Lineup Refresh Coffee Lake

To date, there have been two waves of announcements of processors that are conditionally related to the generation of Coffee Lake Refresh. Despite the fact that such a CPU is largely similar to its predecessors from the family of Coffee Lake, Intel refer them to the ninth generation of Core numbers and indices, start with the number 9. And if the Core i7 and Core i9 this distinction may be partly justified, because they first obtained an eight compute cores, the new processors series Core i5 and Core i3 got an increase in model numbers for the most part. In fact, they only offer higher clock frequency.

While no improvements on the level microarchitecture can not speak at all. And surprise, to be honest, it doesn’t matter. Intel practiced the concept of development is that the profound changes in processors attached to the improvement of production technologies. Therefore, the delay in the implementation of the 10-nm process technology lead to the fact that we once again have to deal with the Skylake microarchitecture, released in 2015. However, what is surprising for some reason Intel does not seek to change features that do not require any noticeable change. For example, the official Coffee Lake Refresh continue to rely on dual DDR4-2666 memory, while AMD has repeatedly adds to its processors support high-speed modes, reaching in the latest versions of mobile Raven Ridge already up to DDR4-3200. The only thing that made Intel, is increased up to 128 GB of memory supported in systems based on Coffee Lake Refresh.

However, despite the absence of changes in microarchitecture, Intel still manages to produce quite an interesting model, extensive methods – increasing the number of cores and clock frequency. The first wave of announcements Coffee Lake Refresh, which took place in October last year, brought three flagship overclocking of the processor, to conquer new frontiers of performance: OCTA core Core i9-9900K and Core i7-9700K, as well as six-core Core i5-9600K. With the second wave of the Christmas list for the latest processors added another six CPU easier. In the end, the full nomenclature of the Refresh Coffee Lake began to look like the following.

Cores/ threads Base frequency, GHz Turbocheetah, GHz L3 cache MB iGPU IGPU frequency, GHz Memory TDP, watts Price
Core i9‑9900K 8/16 3,6 5,0 16 UHD 630 1,2 DDR4‑2666 95 $488
Core i9‑9900KF 8/16 3,6 5,0 16 No DDR4‑2666 95 $488
Core i7‑9700K 8/8 3,6 4,9 12 UHD 630 1,2 DDR4‑2666 95 $374
Core i7‑9700KF 8/8 3,6 4,9 12 No DDR4‑2666 95 $374
Core i5‑9600K 6/6 3.7 V 4,6 9 UHD 630 1,15 DDR4‑2666 95 $262
Core i5‑9600KF 6/6 3.7 V 4,6 9 No DDR4‑2666 95 $262
Core i5‑9400 6/6 2,9 4,1 9 UHD 630 1,05 DDR4‑2666 65 $182
Core i5‑9400F 6/6 2,9 4,1 9 No DDR4‑2666 65 $182
Core i3‑9350KF 4/4 4,0 4,6 8 No DDR4‑2400 91 $173

The main part of the processors added to the released in the first place overclocking K-models later, consists of chips, deprived of the integrated graphics core. Technically Core i9-9900KF, Core i7-9700KF and Core i5-9600KF are based on exactly the same semiconductor Foundation, and have absolutely the same characteristics as the Core i9-9900K, Core i7-9700K and Core i5-9600K, differing only in the fact that they don’t offer the built-in GPU, in hardware blocks at the production stage.

But the list of innovations of the second wave can be seen and indeed a new model. First is the Core i3-9350KF is the only Coffee Lake Refresh Quad core processor with an unlocked multiplier. If you close your eyes to the lack of built-in GPU, it is possible to calculate an updated version of the Core i3-8350K, which was accelerated by adding Turbo Boost technology 2.0 and the newfound ability of automatic overclocking to 4.6 GHz.

Another more-or-less full new in the second wave it is possible to calculate Core i5-9400 and devoid of the integrated graphics Core i9 fellow-9400F. The value of these models lies in the fact that with their help, Intel has significantly lowered the cost of the Junior six-core Coffee Lake Refresh, allowing you to use the latest generation CPU in the configuration baseline. However, formal differences between Core i5-9400 from last year’s hit, Core i5-8400, not so much. Clock frequency increased by only 100 MHz, which is likely due to the desire of the microprocessor giant to leave your younger shestiyaderny within the 65-watt thermal package. As a result, the gap in the maximum frequency in turbo mode between the senior and the Junior six-core processors in the family Coffee Lake Refresh increased to 500 MHz, while in the generation of Coffee Lake it was only 300 MHz.

Judging from the specs, it seems that trump the new Core i5-9400 and Core i5-9400F on the background of the old Core i5-8400 really nothing. However, the specifications in this case do not give quite the full picture. During the announcement of the first Coffee Lake Refresh, Intel said, including about the advantages of an indirect nature. For example, for a new generation of chips was promised a change of the internal thermal interface: polymer place of thermal paste was to take a highly bestlady solder. But does this apply to the Junior six-core Core processors, the ninth generation? It turns out that not always.

#Details about Core i5-9400F

It so happened that, releasing the Coffee Lake Refresh processors, Intel raked in the pile, several different variants of semiconductor crystals with process technology 14 nm++, and not all of them are in fact new. Based on Core processors, the ninth generation may lie as semiconductor crystals, designed for them specifically, and relatively old versions of the silicon, which was used extensively including in the processors of the eighth generation ranked as family Coffee Lake.

In particular, at the moment aware of the existence of at least four stoppingof crystals that are set in a certain mass the Core of thousandth of the series:

  • P0 – the only “honest” option of the crystal, which is really unfair to make Coffee Lake Refresh. This crystal has eight cores and is used in overclocking the Intel Core i9-9900K, Core i7-9700K and Core i5-9600K in their F-variations of the Core i9-9900KF, Core i7-9700KF and Core i5-9600KF, as well as the Intel Core i5-9400;
  • U0 – six-core crystal used in processors Coffee Lake, that is, in the eighth generation Core. Now it is used to create a six-core Core i5-9400F;
  • B0 the Quad – core chip, which is used for the Intel Core i3-9350K. This version of silicon, too, came into the Quad-core processor straight out of the Coffee Lake, including the Core i3-8350K;
  • R0 – a new stepping of a crystal, in which it is assumed will be the senior Core processors, the ninth generation, starting in may. Currently, the serial CPU does not occur, and therefore no specific information about its features and causes no.

Thus, the Core i5-9400F about which we are talking in this review, is the black sheep: one of a kind processor that may be internal to the device is different from the other six-core and eight-core counterparts-generation Coffee Lake Refresh. Strictly speaking, it is not a stripped-down or time-lapse version of the Core i5-9600K or Core i5-9400, and a slightly overclocked variant of the old Core i5-8400 with disabled graphics core.

And I must say, this is manifested not only in the screenshots diagnostic utilities that show for the Core i5-9400F old stepping U0 instead of a new P0. In Core i5-9400F in fact, there is no innovation peculiar to Coffee Lake Refresh. In particular, the Assembly of these chips soldering the die to the heat-spreading lid is not applied, and the internal thermal interface is exactly the same polymer compound used in processors Coffee Lake.

Core i5-9400F и Core i5-9600K без крышки. Фото momomo_us

Core i5-9400F and Core i5-9600K without a lid. Photo momomo_us

In addition, the Core i5-9400F, unlike the rest of a new generation of Coffee Lake Refresh going on the PCB with thinner the PCB is the same as used for conventional Coffee Lake.

Слева направо: Core i5-8400, Core i5-9400F и Core i5-9600K

From left to right: Core i5-8400, Core i5-9400F and Core i5-9600K

And moreover, even the shape of the heat-spreading lid Core i5-9400F gives the relationship of the Core CPU of the eighth generation. Because purebred Coffee Lake Refresh cover has changed.

Слева направо: Core i5-8400, Core i5-9400F и Core i5-9600K

From left to right: Core i5-8400, Core i5-9400F and Core i5-9600K

In other words, there is no doubt that the Core i5-9400F – in fact, no Coffee Lake Refresh and rejection of previous-generation processors with disabled graphics core. And this applies to all wholly supplied at present, the serial Core i5-9400F that largely explains the wide availability of these processors at a time when the mass supply of Coffee Lake Refresh others continue to experience significant problems. For example, formally announced simultaneously with the Core i5-9400F its “full” counterpart with integrated graphics UHD Graphics 630, which should be based on “fair” crystal stepping P0, in retail sales is still missing.

At the same time, the microprocessor giant doesn’t exclude the possibility of transfer Core i5-9400F on the “right” stepping P0 in the medium term. But it will happen, obviously, only when all accumulated in the warehouses of Coffee Lake with a defective integrated GPU will be successfully sold out.

However, for most users this fact of forgery of silicon crystals is unlikely to have any significance. Anyway, Core i5-9400F real shestiyadernik without support Hyper-Threading, which at any load is running at 100 MHz faster than its predecessor, Core i5-8400. This means that the frequency formula Core i5-9400F corresponds to $10 more expensive Core i5-8500.

Despite the fact that Core i5-9400F claimed comparatively low base frequency of 2.9 GHz, in reality this CPU is able to work much faster thanks to technology Turbo Boost 2.0. If enabled, the Multi-Core Enhancements (that is the default mode for the vast majority of motherboards) under full load, the Core i5-9400F able to keep the frequency of 3.9 GHz accelerating under load on one core to 4.1 GHz.

  Nominal frequency The maximum frequency Turbo Boost 2.0
1 core 2 cores 3 core 4 cores 5 cores 6 cores
Core i5-8400 2.8 GHz 4.0 GHz 3.9 GHz 3.9 GHz 3.9 GHz 3.8 GHz 3.8 GHz
Core i5-8500 3.0 GHz 4,1 GHz 4.0 GHz 4.0 GHz 4.0 GHz 3.9 GHz 3.9 GHz
Core i5-9400(F) 2.9 GHz 4,1 GHz 4.0 GHz 4.0 GHz 4.0 GHz 3.9 GHz 3.9 GHz

No overclocking capabilities in this speech, of course, is not. The most capable Core i5-9400F, for the maximum allowed in the technology Turbo Boost 2.0 frequency. And on motherboards with chipsets H370, B360 or H310 do not get to use and faster than DDR4-2666 memory. More speed modes available only on motherboards with older chipsets Z370 or Z390.

SOURCE

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Motherboard Gigabyte Z390 Designare: when I checkered, and go

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In the laboratory 3DNews — Board with a full set of modern interfaces for any applications and support for overclocking, standing alone in the lineup Z390 solutions IBM and managed to present during testing, a pleasant surprise. Read more in our review of Gigabyte Z390 Designare SOURCE

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Motherboard Gigabyte Z390 Designare: when I checkered, and go

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In the laboratory 3DNews — Board with a full set of modern interfaces for any applications and support for overclocking, standing alone in the lineup Z390 solutions IBM and managed to present during testing, a pleasant surprise. Read more in our review of Gigabyte Z390 Designare SOURCE

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