• Hi there and welcome to PC Help Forum (PCHF), a more effective way to get the Tech Support you need!
    We have Experts in all areas of Tech, including Malware Removal, Crash Fixing and BSOD's , Microsoft Windows, Computer DIY and PC Hardware, Networking, Gaming, Tablets and iPads, General and Specific Software Support and so much more.

    Why not Click Here To Sign Up and start enjoying great FREE Tech Support.

    This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Overclocking

Status
Not open for further replies.

Gavin1985

PCHF Member
Jun 6, 2017
27
1
38
hello

Im looking to overclock my processor current have a i7 9700k 3.6mhz. looking to make it 4.5 or 4.9 if poss

https://www.scan.co.uk/products/int...yvmeeE4GVsYQ2KBfmR7FkdcJh2-zA0iBoCaJwQAvD_BwE

My motherboard is rog strix intel z390 -e game
https://www.scan.co.uk/products/asu...a3-dual-m2-2-way-sli-3-way-crossfire-wifi-usb

i have 32 gb ram
https://www.amazon.co.uk/gp/product/B0143UM4TC/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1

my case is a corsair air 740. cpu cooler is a corsair h45 got 4 basic fans in the case to

/Thanks
 
Not familiar with the BIOS. Plug in a USB, load up the BIOS, and use F12 to take screenshots of each BIOS page.

Before doing any of this, reset your BIOS to default settings. Read the entire post before starting.

190211162009.jpg


190211162023.jpg


190211162054.jpg

In screenshot #2, change 45 to 49 if you want 4.9 GHz.

In screenshot #3, keep it on auto unless you're getting BSOD. If you get BSOD, change it to Manual Mode and increase by increments of 0.005 until you get stable performance. YOU SHOULD NOT EXCEED 1.350 V. If you cannot get a stable system with 4.9 GHz @ 1.350 V, you should lower your OC multiplier (48, 47, 46, 45...). Don't just start out at 1.350 V either, you'll wear your CPU down. You want minimal power consumption for maximum performance.

Tools needed:
https://www.cpuid.com/softwares/hwmonitor.html
https://www.cpuid.com/softwares/cpu-z.html
https://www.mersenne.org/download/#download

Use HWMonitor to keep an eye on your CPU temperature.
Use CPU-Z to keep an eye on your CPU speed.
Use Prime95 for the actual stress test.

With Prime95, start with Small FFT test for about 20 minutes, and then Blend for a few hours. YOU SHOULD NOT EXCEED 90°C DURING STRESS TEST. If you do, stop the stress test and adjust the voltage/multiplier accordingly. If you AFK and come back to your PC with a clean desktop, it is likely that you had BSOD during the time you were gone. Again, go back into the BIOS and adjust the voltage/multiplier accordingly.

This is a lengthy process and takes a few days to perfect a stable 24/7 system.
 
Last edited by a moderator:
Status
Not open for further replies.