Intel Core i5-9400F Review

Mid-range Desktop processor released in 2019 with 6 cores and 6 threads. With base clock at 2.9GHz, max speed at 4.1GHz, and a 65W power rating. Core i5-9400F is based on the Coffee Lake Refresh 14nm family and part of the Core i5 series.
Price 87.5%
Speed 75%
Productivity 67%
Gaming 91%
Category Desktop
Target mid-range
Socket Compatibility LGA1151
Integrated Graphics None
Cooler Included Yes
Overclock Potential 0 %
Year 2019 Model
Price 169 USD
Number of Cores 6 Cores
Number of Threads 6 Threads
Core Frequency 2.9 GHz
Boost Frequency 4.1 GHz
Max Stable Overclock 4.1 GHz
Power Consumption 65 W
Manufacturing Process 14 nm
L3 Cache 9 MB
Maximum Supported Memory 128 GB
Price-Value Score 87.5 %
Speed Score 75 %
Productivity Score 67 %
Gaming Score 91 %
Max 1080p Bottleneck 23.9 %
Max 1440p Bottleneck 12 %
Max 4K Bottleneck 6 %
Overall Score 45/100

The Core i5-9400F is one of Intel's mid-range Desktop processors. It was released in 2019 with 6 cores and 6 threads. With base clock at 2.9GHz, max speed at 4.1GHz, and a 65W power rating. The Core i5-9400F is based on the Coffee Lake Refresh 14nm family and is part of the Core i5 series.

Core i5-9400F is also the successor of Intel's last gen Core i5-8400 processor that was based on the Coffee Lake and 14nm process and was released in 2017.

In our mind, the best processors are the ones that deliver outstanding performance at a reasonable price point. And, the Core i5-9400F absolutely nails this concept.

The Intel Core i5-9400F was rolled out on Feb 2019 for $169, which puts it in the same general price range as the last-generation Core i5-8400. This means that at least we're not seeing any considerable price jumps from generation to generation.

Intel has been having some trouble as of late which has made it even harder to compete with the incoming wave of Ryzen 5 processors. That has forced the chip maker to be a little more creative and make do with their current product lines. Today we have the Intel Core i5-9400F on hand, which in itself isn’t anything new. It’s basically a refreshed Core i5-8400 with a clock speed boost. We say basically because it’s not a straight refresh however, there’s another change.

The Intel Graphics have been disabled and therefore the Core i5-9400F has no form of integrated graphics -- just like the Ryzen 5 3500. This is meant to make the Core i5-9400F cheaper than the Core i5-8400, even though AMD's list pricing doesn't make this apparent, in practice the Core i5-9400F can be had for $169 while the Core i5-8400 is still $182, making the newer chip 8% cheaper. It also means it’s cheaper than the Ryzen 5 3500 which is currently retailing for $240.76.

If you're mostly playing games on your PC, you will be happy buying either processor. Both proved to be solid options and are evenly matched with a slight advantage to the AMD chip if you don't tune up the Ryzen 5 processor. The base performance we showed for the Core i5-9400F can be achieved with $90 memory, while the Ryzen 5 3500 will require $110 - $120 memory in order to enable the frame rates shown here. It’s not a big cost difference and right now with anything less than an RTX 2070 or Vega 64 you’ll more than likely become GPU limited.

Today we’ll be taking a closer look at the Intel Core i5-9400F 6-core desktop processor that was released in Feb 2019. Intel offers the Core i5-9400F without integrated graphics. It runs $169 shipped and is ideal for those that plan on using it a system with a dedicated graphics card.

One of the nice things about the Intel Core i5-9400F processors is that the retail boxed models come with a CPU cooler. So, you can pick something like the Intel Core i5-9400F up for $169 and don’t need to spend any extra money on CPU cooling.

The Intel Core i5-9400F retail boxed processor comes with the traditional ‘pancake’ CPU cooler. Nothing fancy, but it gets the job done on this processor which is rated at 65W TDP. You do not need to have an aftermarket cooling solution unless you want to.

For a 6-core processor, Intel’s $169 flagship Core i5-9400F processor seems downright cheap. On paper, the cost of those 0 extra cores is almost an afterthought when you stack it up against its direct competitor, the $240.76 6-core AMD Ryzen 5 3500.

That said, Intel still lags behind in frequency when the Ryzen 5 3600 operates at 3.6GHz at any given moment and 4.2GHz when push comes to shove.

With Core i5, Intel continues to innovate on its new architecture and 14nm process. Like Core i5, Intel has engineered Core i5 to operate on a LGA1151 chipset with all the modern amenities of computing. This includes support for DDR4 RAM, the fastest NVMe SSDs and Thunderbolt 3 ports.

Now the biggest question is can Intel’s Core i5 processor play games? The answer is simply yes as it got a respectable gaming score of 91% in our benchmarks.

If you’ve been looking for an affordable, powerhouse CPU that both works and parties hard, this is it.

Fresh from a successful roll-out of mainstream Core i5 CPUs, Intel's attack on AMD now extends down into the mid-range with its Core i5-9400F processors, which the company is making available as of Feb 2019.

Which GPU to Pick for Intel Core i5-9400F

Below is a comparison of all graphics cards average FPS performance (using an average of 80+ games at ultra quality settings), combined with the Intel Core i5-9400F.

Graphics Card Price Cost Per Frame Avg 1080p Avg 1440p Avg 4K
NVIDIA GeForce RTX 3090 24GB $ 1,499 $ 6.4 234.6 FPS
200.2 FPS
127.5 FPS
NVIDIA GeForce RTX 3080 10GB $ 699 $ 3.4 204.4 FPS
174.4 FPS
111.1 FPS
NVIDIA GeForce RTX 3070 8GB $ 499 $ 3.2 156.3 FPS
133.5 FPS
85 FPS
NVIDIA TITAN RTX 24GB $ 2,499 $ 17.4 143.6 FPS
126.5 FPS
81.2 FPS
NVIDIA GeForce RTX 2080 Ti 11GB $ 1,299 $ 9.3 139.8 FPS
123.2 FPS
79 FPS
NVIDIA GeForce RTX 2080 SUPER 8GB $ 699 $ 5.5 126.8 FPS
110.7 FPS
70.6 FPS
NVIDIA TITAN V 12GB $ 2,999 $ 24.7 121.6 FPS
107.2 FPS
70.1 FPS
NVIDIA GeForce RTX 2080 8GB $ 699 $ 5.8 119.9 FPS
103.5 FPS
65.5 FPS
NVIDIA GeForce GTX 1080 Ti 11GB $ 759 $ 6.8 112.4 FPS
98.8 FPS
63 FPS
NVIDIA GeForce RTX 2070 SUPER 8GB $ 499 $ 4.5 111.7 FPS
95.3 FPS
60.7 FPS
NVIDIA TITAN Xp 12GB $ 1,199 $ 10.9 110.2 FPS
95.3 FPS
62.1 FPS
AMD Radeon VII 16GB $ 699 $ 6.3 110.2 FPS
94.6 FPS
59.3 FPS
AMD Radeon RX 5700 XT 8GB $ 399 $ 3.7 107.3 FPS
92.1 FPS
57.7 FPS
NVIDIA GeForce RTX 2070 8GB $ 499 $ 4.7 105.9 FPS
89.1 FPS
57.4 FPS
NVIDIA GeForce RTX 2060 SUPER 8GB $ 400 $ 4 100.2 FPS
82.9 FPS
52.5 FPS
AMD Radeon RX 5700 8GB $ 349 $ 3.6 98.3 FPS
84.5 FPS
52.8 FPS
NVIDIA GeForce GTX 1080 8GB $ 499 $ 5.2 95.5 FPS
80.8 FPS
50.7 FPS
NVIDIA GeForce RTX 2060 6GB $ 350 $ 3.7 94.3 FPS
76.3 FPS
47.4 FPS
AMD Radeon RX 5600 XT 6GB $ 279 $ 3 92.8 FPS
79 FPS
49.3 FPS
AMD Radeon R9 295X2 4GB $ 1,499 $ 16.7 89.5 FPS
74.6 FPS
49.8 FPS
AMD Radeon RX Vega 64 8GB $ 499 $ 5.6 89.2 FPS
76.7 FPS
47.8 FPS
NVIDIA GeForce GTX 1070 Ti 8GB $ 409 $ 4.6 88.4 FPS
74.8 FPS
46.8 FPS
NVIDIA GeForce GTX TITAN X 12GB $ 999 $ 11.6 86 FPS
71.9 FPS
45 FPS
NVIDIA GeForce GTX 1660 Ti 6GB $ 279 $ 3.3 84.1 FPS
71.2 FPS
44.5 FPS
AMD Radeon RX Vega 56 8GB $ 399 $ 4.8 83.6 FPS
71.7 FPS
44.8 FPS
NVIDIA GeForce GTX 1070 8GB $ 399 $ 4.9 81.4 FPS
68.2 FPS
42.4 FPS
NVIDIA GeForce GTX 1660 SUPER 6GB $ 229 $ 2.9 79.3 FPS
67.2 FPS
42.1 FPS
NVIDIA GeForce GTX 980 Ti 6GB $ 649 $ 8.7 74.8 FPS
63 FPS
39.4 FPS
NVIDIA GeForce GTX 1660 6GB $ 220 $ 2.9 74.7 FPS
63.2 FPS
39.5 FPS
AMD Radeon RX 590 8GB $ 279 $ 3.9 70.9 FPS
58.2 FPS
35.6 FPS
AMD Radeon R9 FURY X 4GB $ 649 $ 9.5 68 FPS
59.8 FPS
38.4 FPS
NVIDIA GeForce GTX 1650 SUPER 4GB $ 160 $ 2.5 65 FPS
54.9 FPS
34.3 FPS
AMD Radeon RX 5500 XT 8GB 8GB $ 199 $ 3.1 64.4 FPS
52.9 FPS
32.3 FPS
NVIDIA GeForce GTX 980 4GB $ 549 $ 8.6 64.2 FPS
53.4 FPS
33.6 FPS
AMD Radeon RX 580 8GB $ 229 $ 3.6 62.8 FPS
51.5 FPS
31.3 FPS
AMD Radeon R9 Nano 4GB $ 649 $ 10.5 61.8 FPS
53.5 FPS
34.2 FPS
NVIDIA GeForce GTX TITAN BLACK 6GB $ 999 $ 16.7 59.9 FPS
49.5 FPS
32.5 FPS
AMD Radeon R9 FURY 4GB $ 549 $ 9.4 58.4 FPS
50.4 FPS
31.8 FPS
NVIDIA GeForce GTX 1060 6GB 6GB $ 254 $ 4.4 58.3 FPS
48.2 FPS
30.2 FPS
AMD Radeon RX 5500 XT 4GB 4GB $ 169 $ 2.9 57.8 FPS
47.5 FPS
28.9 FPS
AMD Radeon R9 390X 8GB $ 429 $ 7.6 56.2 FPS
48.3 FPS
30.6 FPS
NVIDIA GeForce GTX 1060 3GB 3GB $ 170 $ 3.1 55.3 FPS
45.9 FPS
28.7 FPS
NVIDIA GeForce GTX 970 4GB $ 329 $ 6 54.4 FPS
44.6 FPS
29 FPS
AMD Radeon RX 480 8GB $ 400 $ 7.6 52.8 FPS
45 FPS
28.8 FPS
AMD Radeon R9 390 8GB $ 329 $ 6.3 52.5 FPS
44.1 FPS
26.3 FPS
AMD Radeon RX 570 4GB $ 169 $ 3.3 51.8 FPS
43.5 FPS
26.6 FPS
NVIDIA GeForce GTX 1650 4GB $ 149 $ 3 49.5 FPS
41.6 FPS
25.9 FPS
AMD Radeon RX 470 4GB $ 179 $ 3.9 46.3 FPS
39 FPS
24.3 FPS
AMD Radeon R9 380X 4GB $ 229 $ 5.9 38.9 FPS
32.5 FPS
20.7 FPS
AMD Radeon R9 285 2GB $ 249 $ 7.1 34.9 FPS
29.2 FPS
17.5 FPS
AMD Radeon R9 380 2GB $ 199 $ 5.7 34.7 FPS
28.9 FPS
17.5 FPS
NVIDIA GeForce GTX 1050 Ti 4GB $ 169 $ 4.9 34.2 FPS
28.6 FPS
17.9 FPS
AMD Radeon R9 280 3GB $ 279 $ 8.3 33.8 FPS
28.6 FPS
16.8 FPS
NVIDIA GeForce GTX 960 2GB $ 199 $ 6 33.4 FPS
27.8 FPS
17.1 FPS
NVIDIA GeForce GTX 1050 3GB $ 169 $ 5.8 29.1 FPS
24.2 FPS
14.8 FPS
AMD Radeon RX 560 4GB $ 99 $ 3.7 26.9 FPS
22.1 FPS
13.6 FPS
NVIDIA GeForce GTX 950 2GB $ 159 $ 6 26.4 FPS
21.6 FPS
13.8 FPS
AMD Radeon R7 370 2GB $ 149 $ 5.8 25.9 FPS
20.3 FPS
13.1 FPS
AMD Radeon R7 265 2GB $ 149 $ 5.8 25.7 FPS
19.7 FPS
12.6 FPS
AMD Radeon RX 460 4GB $ 140 $ 5.9 23.8 FPS
19.6 FPS
12.1 FPS
NVIDIA GeForce GTX 750 Ti 2GB $ 149 $ 6.5 22.9 FPS
16.8 FPS
10.9 FPS
AMD Radeon RX 550 2GB $ 79 $ 4.2 18.8 FPS
15.5 FPS
9.5 FPS
NVIDIA GeForce GT 1030 2GB $ 79 $ 4.4 17.9 FPS
14.8 FPS
8.8 FPS

Related Discussions and Issues

zGalick July 12, 2020

Need help . ZOTAC Gaming GeForce RTX 2070 Super Mini 8GB GDDR6 256-Bit 14Gbps pairable with intel i5 9400f 6 core 2.9ghz ?

Current have a prebuilt nzxt with ASRock b365 phantom gaming mother board and Intel i5 9400f 6 core 2.9 ghz . looking to upgrade my GPU for more fps . was looking at 2060 supers on amazon most are currently refurbished . I really want something new. Came across this zotac 2070 super mini . Will this work with my cpu or will there be some bottlenecking some where? Or would a 2060 super be a better option ? Help pls

kaje July 16, 2020

What resolution and refresh rate is your monitor?

munchingzia July 15, 2020

depeding on the game and resolution, it could be either your cpu or gpu holding you back. Potentially you may not even see a frame rate increase by upgrading your gpu

zGalick July 18, 2020

Mainly play warzone at 2560x1080 . it's a spectre 200hz monitor . so if my fps wont increase with just changing this gpu I'll have to buy a CPU that pairs with it better like ryzen 7 or i7 ?

mawskeletor July 26, 2020

Help! I5-9400f No Display

I recently purchased some new hardware to build a new system, with the exception of a couple parts. The problem appears to be the bios needs to be flashed but there is no onboard graphics so the display must come from gpu. That's fine, except there is no display from any port. I tried switching cables, hdmi, display port, dvi. I read online that most gpus should work by grabbing default drivers, but where is that coming from? Do I need to have my boot drive installed for some reason? I am also curious if it's a compatibility issue with mobo and gpu that could be remedied by flashing bios. In this case I would need another compatible cpu w/ graphics to do so.. Another thought was my PSU. I've had it for a while so there is a chance it could be under powering. I did all the calculations for power needs and it came out well under 500. Any thoughts? I'm desperate!

Darkflash v22 chassis Asus prime h310m-a r2 i5-9400f Ripjaw 8gb ddr4 2400mhz Crucial 140gb SSD ID Cooling Zoomflow 240 cooler XFX R9 380 EVGA 500watt

kaje July 26, 2020

Did you buy the mobo new or used? If it needs to be flashed for compatibility with a 9th gen CPU, you need to put an 8th gen in it to get it to boot so you can flash it.

mr_vain93 July 26, 2020

You need a 8th gen CPU that works on that board to update the BIOS to make it 9th gen compatible. afaik

thekatt420 July 17, 2020

Hello I need help with understanding the i5 9400f specs

I am wanting to upgrade my ram. I understand the processr takes a 8gb ddr4 2666mhz (1x8) but I am unsure the pin size for the i5 9400f is it 280pin or 288pin. I honestly need more ram for gameing

Snorkle25 July 18, 2020

Any motherboard your using with the 9400f will only be able to accept ddr4 ram. So only buy ddr4, dont worry about pin count.

Make sure the ram you buy is as close in speed and cas timings as the ram in your system already.

For_Kac July 20, 2020

Ryzen 5 3600 or I5 9400f for gaming? Gpu is 1660 Ti. Please help.

crotal88 July 20, 2020

I doubt you could see a difference with a 1660 TI, Intel gets a real fps advantage with highend cards like the 2080TI, lower end cards won't make a visible difference so i would go for what is cheaper to buy

heikki06 July 20, 2020

3600 is slower in most games but has more power for other things like discord, spotify etc. in the background.

Ominous_Strix July 20, 2020

Are you sure you're not just confusing what multiprocessing is? Because those programs should have 0 impact on performance on any modern chip

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Critics Reviews

The Core i5-9400F's ~$20 discount could be compelling for mid-range gamers who don't need integrated graphics. Core i5-9400F and Core i5-9400 . From an architectural standpoint, the Core i5-9400 ...
Core i5 9400F is an intermediate processor from Intel ‘s ninth generation . The model promises good performance to run games and productivity applications, offering speeds between 2.9 and 4.1 GHz. The component has six cores and can be found for at least $157.00, being an interesting cost-effective option. benefit.
Intel Core i5-9400F ⭐ review. Discover the key facts and see how Intel Core i5-9400F performs in the CPU ranking.
Intel Core i5-9400F Desktop Processor 6 Cores 4.1 GHz Turbo Without Graphics: $158.00: Get the deal: Intel Core i5-9500 Desktop Processor 6 C... Intel Core i5-9500 Desktop Processor 6 Cores up to 4.GHz LGA1151 300 Series 65W: $204.99: Get the deal: Intel Core i5-9600K Desktop Processor 6 ...
Buy Intel Core i5-9400F Coffee Lake 6-Core 2.9 GHz (4.1 GHz Turbo) LGA 1151 (300 Series) 65W BX80684I59400F Desktop Processor Without Graphics with fast shipping and top-rated customer service. Newegg shopping upgraded ™
This chart compares the Intel Core i5-9400 Processor with the most popular Processors over the last 30 days. Components that offer the best value for money have great performance (yellow) and a low price (green). The smaller the overlap between the yellow and green bars, the better the value for money.
Buy Intel Corporation Core i5 9400F 9th Generation Desktop Processor 6 Cores up to 4.1 GHz Turbo Without Graphics LGA1151 300 Series 65W (Discrete Graphic Card Needed for Display) online at low price in India on Check out Intel Corporation Core i5 9400F 9th Generation Desktop Processor 6 Cores up to 4.1 GHz Turbo Without Graphics LGA1151 300 Series 65W (Discrete Graphic Card Needed ...
Processador: Intel Core I5-9400F RAM: 8GB (2x4) 2400MHz Reeinno Placa de Vídeo: Gigabyte RX550 2GB HD: Western Digital 320GB SSD: Kingspec 360GB Fonte: 750W 80Plus PCYes Monitor 1: AOC G2260 ...

Related Comments

jainamshah4321 July 27, 2020
Is this cooler suitable for my CPU and Case?
Hi guys,

I currently have an i5-9400f and the stock cooler is not sufficient for good cooling. This is why I was looking into other air cooling options. I ran into the cooler by CM called the Hyper 212 which seems to have a lot of good reviews. I was wondering if this cooler would be sufficient for my CPU. I mostly just do gaming on the PC. Also another question I have is my case says it can support CPU coolers upto 160mm and the hyper212 website says the height of the cooler is 158.8mm. I know it numerically means I can use the cooler, but since there is only 1.2mm difference between the max and the actual height will this cause any issues when i try use this cooler in my case?

Here are the links for both items:

Thank you in advance.
FoxVoxDK July 05, 2014
No, it is outclassed these days, unfortunately.
How about the Be Quiet Pure Rock 2?
Or Noctua NH-U12S?
Scythe Mugen 5 Rev.b?
spectre878 July 12, 2020
Question about RAM compability ( HX426C16FB2K2/16 and HX426C16FB3K2/16)
Hey guys, currently I am planning to upgrade from 16GB to 32GB ram. Currently I have 2kit HX426C16FB2K2/16 and planned to buy same kit to increase the memory. However, this model is no longer available for sale, therefore i wanted to ask if the HX426C16FB3K2/16 would work alongside the kit I already have.

My other components:
mobo: ROG STRIX Z390-H
CPU: i5-9400f
Darkbreeze June 24, 2014
Please read section two, titled "The odd man out".

How To - Troubleshooting problems with PC memory (RAM) and XMP profile configurations In the beginning, there was......BIOS Before you go ANY further, go to the manufacturer product page for your specific motherboard model AND revision. Revision is an important aspect because for any given motherboard there may be more than one version of that model which will be identified...
Worest July 11, 2020
G.SKILL Aegis will work on ASUS Prime B360M-A?
Hello guys!
I want to buy a new ram, so I find it and has a good price(65$).
It will work on ASUS Prime B360M-A?

RAM what I want to buy:

G.SKILL Aegis 16GB (2x8GB) DDR4 3200MHz F4-3200C16D-16GIS

Motherboard: ASUS Prime B360M-A
CPU: i5-9400F
Videocard: Sapphire Radeon RX5700 8G
PSU: Be Quiet Pure Power 11

If not, please recommend another RAM.

Thank you in advance.
QwerkyPengwen January 16, 2014
QVL is just a list of RAM that was physically tested by the motherboard manufacturer and is only a list of such.

And they only typically test slightly higher tier RAM and don't bother testing bottom of the barrel budget RAM, but all they test for is if it will run at rated overclock speeds and timings (anything above 2400MHz is overclocked)

The RAM will work, but worst case scenario is that it won't run at speeds higher than 2400MHz but since this is an Asus board you should be fine cuz Asus has fantastic RAM compatibility, and G.Skill makes good RAM even on the budget end.
Zellweger July 09, 2020
Dont know what to pick between these 3 specs
Morning everyone, first time being here, but heard is a good place to ask stuff.
So, as the title says, i have to choose between these 3 specs:
Spec number 1:
CPU: AMD Ryzen 5 3600X 3.8 Ghz
GPU: GTX 1660 Ti
16GB RAM DDR4 3200 Mhz
512 GB SSD
Spec number 2:
CPU: I5-10400F 2.9 Ghz
GPU: NVIDIA GeForce GTX 1660 Super 6GB
16 GB RAM DDR4 2400 MHz
HDD 1Tb + SSD 256 GB
MOBO: H410
Spec number 3:
CPU: Intel Core i5-9400F 2.9 GHz
GPU: NVIDIA GeForce GTX 1660 Ti 6GB
16 GB RAM DDR4 2666 Mhz
SSD 512 GB
MOBO: B360 intel

I have to mention that my intention is to buy a PC just for gaming and watching stuff online (so no programming, no multitasking). Some friends told me to buy the rig with amd cpu, but arent amd cpus overheating at some point, or being way hotter than intel cpus? If yes, how can i avoid it?
Please use arguments when answer this. Thanks a lot!
ceriumin November 13, 2018
Spec number one, however if you can I would change 1 to a GTX1660 super as it is lower price and basically the same as a GTX1660ti. The Ryzen 5 3600x I would change to a regular 3600 as you don't need too much of the power and you can overclock a stock one to the same speed as the 3600x. The RAM is 3200mhz which is the best choice for ryzen and is very fast, check videos on youtube to see how much more fps you get. Unless you are going to install a ton of games, the 500gb ssd is a great choice and the mobo is cheap and affordable. So spec number 1 by a long shot.
Jamry July 09, 2020
Low FPS on The Forest on 1366x768 resolution while on high and low settings
The performance im getting while playing The Forest keeps on bugging me as I always experience FPS drops and frequent stutters which ruins my encounters with cannibals in the game.

Here is my specs:
R7 1700
RX 570
240GB SSD (The forest is installed here)

The performance im getting is a whole lot different than my brother's, since the only difference on our PC is just that he is playing on 1080p, his processor is an i5 9400F, his playing the game on an HDD, and his RAM is 8GB. He's also playing the game with me while he's streaming, while I am not streaming at all. He never experience fps drops and I can also see that his game is running much smoother than mine since we play side by side literally.

So I have no single idea why am I getting this kind of performance since I am playing on a much lower resolution than him, lowering the settings to their lowest does not make the stuttering and fps drop go away at all.

Or should I conclude that the game is not optimized at all for AMD processors?

Note: Sorry for my English it's not my native language.
rgd1101 November 07, 2011
the game use OS.
Kharsonist July 04, 2020
Computer turns off in seconds with new cpu
CPU: i7-9700k
Mobo: Asus MPG z390 gaming plus
PSU: gamemax 800w atx power supply

I believe I have enough power to support the i7 and the rest of the build given this i7 doesn't draw significantly more power than my previous i5-9400F. I'm just not sure what is causing the issue.
SkyNetRising January 04, 2016
Upgrade BIOS to latest version.
Voidzz July 01, 2020
Struggling to pick a CPU
I’m having some trouble picking out what cpu I should pick. An I5 9400f or an AMD Ryzen 5 1600AF. I mostly play games and edit videos and I want the cpu to be balanced. Great for productivity and great for gaming too. Any help would be greatly appreciated.
cdrkf March 18, 2013
That is easy, the 1600AF has twice the threads so will be much better for productivity whilst still being decent for games (especially if paired with fast DDR4 memory, which you cannot use with the i5 unless you pair it with a very expensive Z series motherboard).
RyanZabruhla June 22, 2020
Do I need to update my Bios? I have a ASRock B360M Xtreme.
When I check the compatibility to upgrade my i5 9400f to i7 9700k, says that "Some Intel B360 chipset motherboards may need a BIOS update prior to using Coffee Lake Refresh CPUs. Upgrading the BIOS may require a different CPU that is supported by older BIOS revisions". BUT my version is a P4.00 dated 03/19/2019.

AngelJin June 19, 2020
U have already a 9th gen intel cpu on this board u dont need new bios both i5 9400f and i7 9700k is both 9th gen. Also i5 9400f is newer model (2019) i7 9700k (2018) so u will be fine i made a mistake in my first post and the i9 is 9th gen soz for that.
AlmirTZ June 17, 2020
High CPU idle temperature after reseting bios to default
Hello guys. Recently I bought used desktop and it had Masterliquid ml240L already installed. Everything worked fine until I didn't reset BIOS and now my idle temp is about 50 C and when cpu is at max, then temp jumps to 100 C, but it jumps in just few seconds, I mean very fast. So do you know maybe what I should change again in Bios, I tried everything that I was thinkinkg that will help, but nothing helps.
Motherboard is ASUS Prime 360m
CPU > I5-9400f
and I will attach few pictures so if anybody know what to change. Thanks

and here is picture when I just open DAZ Studio
AlmirTZ June 17, 2020
I solved it. It turns out that I had to disable turbo mode for cpu in bios for some reason, and now temperature droped to 70 C on 100% load
iErnest June 16, 2020
PC turning on and off immediately
Hello guys, so today I turned on my pc as usual and it wouldn't turn on because it's turning off immediately. Like im the video below: View:

I tried to change anything and even reset the bios and taking off the battery for 5 minutes, nothing.
I don't know what can I do now

CASE: AeroCool P7-C1WG
PSU: Corsair VS550
MOBO: MSI Z390-a pro
CPU: Intel Core i5 9400f
RAM: G.SKILL 16GB 2400Mhz
HDD: Seagate Barracuda 7200/rpm 1.5TB
OS: Windows 10 Home
rgd1101 November 07, 2011
test with a different psu?
Zonalxd June 09, 2020
I5 9400f turbo boosting safe?
I just turbo boosted my i5 9400f and I’m scared it’s at 4ghz it’s a new pc I got idk anything about pcs but it stays at 4ghz is it safe does it affect the lifespan or is it bad
Gam3r01 January 12, 2013
The 9400f is rated for up to 4.1GHz stock from the factory, what you are doing is perfectly safe, wont impact lifespan, and is a part of the design.
Birl June 08, 2020
High temps with gtx 1660
Hello, everyone

I got myself a new build about 5 months ago. It's got a I5 9400F + asus phoenix OC gtx1660 + 8gb ram.

The machine is performing greatly. 60fps+ on every game with high-ultra settings. The only issue being the GPU temps while under load.

The case has all of its 3 fans on the front panel. I have no fans on the top, neither on the back.

I had no idea the temps were this high with certain games.

Apparently Witcher 3 has been killing my card. Looking up Msi afterburner while playing, I've come to notice that for most games, the fan finds itself at 59%. Would turning it up or messing with the fan curve solve it? I'm a bit of a noob and have never done it before. Is it safe to mess with the fan speed slider on msi afterburner? I guess I could add an extra case cooler or get an aftermarket cooler for the card as well.

Below are some screenshots with my current temps:


I removed the case's side panel and the overall temps dropped about 10°. I went from an average of 78° on gta to 66-67°, for instance.
Ralsei October 01, 2018
In a case like that I would invest in more exhaust fans than intakes... move one of the intakes to the back as an exhaust and see if that helps.
Curse_123 May 30, 2020
Stuck on sizing and compability for CPU cooler
Recently I've been slowly replacing all the parts of a pre built computer I bought a couple years ago and currently it has a small coolermaster CPU fan installed I'm not sure of the exact name it just looks like a basic black CPU fan. This is the last piece I need to replace but I'm worried I might buy something that isn't compatible or won't fit because my case is pretty small.

So my question is which one of these (if any) will be fine compatibility and space wise?

My computer