9900kf only showing 4 cores? - Overclock.net - An Overclocking Community
Forum Jump: 

9900kf only showing 4 cores?

Reply
 
Thread Tools
post #1 of 19 (permalink) Old 05-28-2020, 03:22 PM - Thread Starter
New to Overclock.net
 
UPGR4Y3DD's Avatar
 
Join Date: Apr 2013
Location: FL
Posts: 119
Rep: 1 (Unique: 1)
9900kf only showing 4 cores?

So I just installed a 9900kf into a Z390 MSI ACE MEG and it is only showing 4 of the cores. I was using this computer with another CPU and everything worked properly. I cleared the bios before install and the 9900kf was brand new before install. Bios shows the full 8 cores but in windows I am only getting 4. I have never had something like this happen and I am not quite sure what is causing this. Anyone have any idea what might be going on?
Attached Thumbnails
Click image for larger version

Name:	Screenshot (3).png
Views:	63
Size:	240.4 KB
ID:	350172  

UPGR4Y3DD is offline  
Sponsored Links
Advertisement
 
post #2 of 19 (permalink) Old 05-28-2020, 03:36 PM
New to Overclock.net
 
Larkonian's Avatar
 
Join Date: Aug 2016
Posts: 14
Rep: 0
Maybe try re-seating the CPU? Some of the pins might not be in proper contact. The BIOS probably shows the amount of cores just based on the CPU type.
Larkonian is offline  
post #3 of 19 (permalink) Old 05-28-2020, 03:42 PM - Thread Starter
New to Overclock.net
 
UPGR4Y3DD's Avatar
 
Join Date: Apr 2013
Location: FL
Posts: 119
Rep: 1 (Unique: 1)
Quote: Originally Posted by Larkonian View Post
Maybe try re-seating the CPU? Some of the pins might not be in proper contact. The BIOS probably shows the amount of cores just based on the CPU type.
That was actually my first thought, so that’s what I did. Unfortunately I got the same results; only 4 cores.
UPGR4Y3DD is offline  
Sponsored Links
Advertisement
 
post #4 of 19 (permalink) Old 05-28-2020, 03:43 PM
Watercooler
 
Socks keep you warm's Avatar
 
Join Date: Feb 2011
Location: Melbourne, Australia
Posts: 3,364
Rep: 145 (Unique: 124)
You tried a bios update?

EDIT:

https://forums.tomshardware.com/thre...reads.3478197/

I like to have fun.
https://stats.foldingathome.org/donor/110855
https://www.trueachievements.com/gamer/II+TH3PRO+II
16 Threads is Good
(10 items)
CPU
Intel Core I9 9900K 4.8Ghz
Motherboard
Gigabyte Aorus Elite
GPU
Aorus 2080Ti Xtreme Waterforce WB 11GB
RAM
Trident Z
Hard Drive
Samsung 250 SSD
Power Supply
Cooler Master Silent Pro Hybrid
Cooling
Watercooling Custom
Case
900D
Operating System
Windows 10 x64
Monitor
28" ACER 4K Monitor
▲ hide details ▲


Socks keep you warm is offline  
post #5 of 19 (permalink) Old 05-28-2020, 04:00 PM - Thread Starter
New to Overclock.net
 
UPGR4Y3DD's Avatar
 
Join Date: Apr 2013
Location: FL
Posts: 119
Rep: 1 (Unique: 1)
Quote: Originally Posted by Socks keep you warm View Post
That’ll do the trick, thanks! I thought I got a bad chip but it was the msconfig. I just needed to uncheck it so that it wouldn’t only run 8 cores/threads.
UPGR4Y3DD is offline  
post #6 of 19 (permalink) Old 05-28-2020, 04:01 PM
Watercooler
 
Socks keep you warm's Avatar
 
Join Date: Feb 2011
Location: Melbourne, Australia
Posts: 3,364
Rep: 145 (Unique: 124)
Quote: Originally Posted by UPGR4Y3DD View Post
That’ll do the trick, thanks! I thought I got a bad chip but it was the msconfig. I just needed to uncheck it so that it wouldn’t only run 8 cores/threads.
No worries dude, sometimes it's just the simple things weird how you had to edit anything at all tbh.

I like to have fun.
https://stats.foldingathome.org/donor/110855
https://www.trueachievements.com/gamer/II+TH3PRO+II
16 Threads is Good
(10 items)
CPU
Intel Core I9 9900K 4.8Ghz
Motherboard
Gigabyte Aorus Elite
GPU
Aorus 2080Ti Xtreme Waterforce WB 11GB
RAM
Trident Z
Hard Drive
Samsung 250 SSD
Power Supply
Cooler Master Silent Pro Hybrid
Cooling
Watercooling Custom
Case
900D
Operating System
Windows 10 x64
Monitor
28" ACER 4K Monitor
▲ hide details ▲


Socks keep you warm is offline  
post #7 of 19 (permalink) Old 05-28-2020, 06:26 PM - Thread Starter
New to Overclock.net
 
UPGR4Y3DD's Avatar
 
Join Date: Apr 2013
Location: FL
Posts: 119
Rep: 1 (Unique: 1)
This CPU is already being a pain. So I went to overclock and another issue has popped up. About a minute after it boots up something is setting the CPU to 4.7ghz. I’ve tried setting the CPU ratio to 48, 49, 50. I open cpuz immediately once I boot and it will show the overclock I applied in bios and then a couple second later it will go to 4.7ghz. Even in Cinebench15 or prime95 (tried with avx on and off), it won’t go about the 4.7 regardless of what I’ve set in bios. I’ve overclocked a 9700k on this same board without an issue so I’m not sure why it’s reverting to 4.7 shortly after booting with the oc I applied.
UPGR4Y3DD is offline  
post #8 of 19 (permalink) Old 05-29-2020, 03:34 AM
New to Overclock.net
 
newls1's Avatar
 
Join Date: Jun 2007
Location: Atlanta GA
Posts: 1,782
Rep: 46 (Unique: 34)
speedstep, eist, all the c-states causing this.. also, go look at your powerplan in windows control panel and set it to either ultimate performance, or performance

**Intel System** Asus Z390E Strix / 8700k @ 4.85Ghz / 32GB BDie @ 3200 CL14 / PowerColor 5700XT / eVGA 850w PSU / Sammy 960 EVO m.2 / MX500 250gb games SSD / 49" Samsung UltraWide 144Hz

**Games Only** Asus Maximus Formula XII / i9 10900k @ 5.3GHz / 32gb 4x8GB Patriot Viper DDR4 4400 @ 4133 / 2080Ti / Everything watercooled using Dual Loops and many 420mm rads


newls1 is offline  
post #9 of 19 (permalink) Old 05-29-2020, 04:48 AM - Thread Starter
New to Overclock.net
 
UPGR4Y3DD's Avatar
 
Join Date: Apr 2013
Location: FL
Posts: 119
Rep: 1 (Unique: 1)
Quote: Originally Posted by newls1 View Post
speedstep, eist, all the c-states causing this.. also, go look at your powerplan in windows control panel and set it to either ultimate performance, or performance
I have eist and the c-states disabled but I am not seeing speedstep anywhere in my bios. Windows is set to performance mode as well.
UPGR4Y3DD is offline  
post #10 of 19 (permalink) Old 05-29-2020, 05:21 AM
Nvidia Enthusiast
 
philhalo66's Avatar
 
Join Date: Apr 2009
Location: Maine
Posts: 9,936
Rep: 270 (Unique: 211)
Quote: Originally Posted by UPGR4Y3DD View Post
I have eist and the c-states disabled but I am not seeing speedstep anywhere in my bios. Windows is set to performance mode as well.
Look for power limits. I saw a few 9900K overclocking guides and they all set the package power limit and time limit to maximum values. I also did this and mine sits happily at 5Ghz 24/7.
I'm sure the name varies between manufactures but my gigabyte board lists both values at

"Package Power Limit1 TDP (WATTS)"
"Package Power Limit1 Time"
"Package Power Limit2 TDP (WATTS)"
"Package Power Limit2 Time"

All 4 of those settings you want to max out. Also check to see if your temp limit it set too low. Some people set it to 115C but i kept mine at 105C and i dont come anywhere near that even with avx prime95. You can also set core current limit to 255 if you like but personally i never seen it make any difference so it's up to you on that one.

gaming rig
(18 items)
CPU
Intel Core i9 9900K 5GHz 1.25V
Motherboard
ASUS Maximus XI Hero
GPU
EVGA RTX 2080 Ti FTW3 Ultra Hybrid
RAM
G.SKILL Ripjaws V DDR4 3600MHz 32GB
Hard Drive
HGST 2TB
Hard Drive
Seagate 2.5 Inch 2TB
Hard Drive
Samsung 860 EVO 1TB
Hard Drive
Intel 660p NVME 512GB
Optical Drive
LG Blu Ray drive
Power Supply
Corsair RM850i 850W
Cooling
EVGA CLC 360MM Corsair LL120
Case
Corsair Graphite 780T White
Operating System
windows 10 Pro
Monitor
MSI OPTIX MAG24C
Monitor
Acer XFA240 bmjdpr
Keyboard
G.SKILL RIPJAWS KM780 MX
Mouse
Razer Deathadder Elite
Audio
Sound Blaster Z
▲ hide details ▲
philhalo66 is offline  
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off