Clevo P870DM n00bie's guide

Dedicated to my friend @hmscott and the mastermind @Prema

So just got your Clevo P870DM and are at a loss why isn't it running at the advertised 4.2 GHz? Are you experiencing throttling due to high temps while gaming or doing CPU intensive tasks? Then this guide is for j00

If you ever wanna format your laptop and perform a clean Windows 10 installation, see:

NBR Windows 10 Clean Installation Guide

PS: If you want to install Windows 10 in RAID mode, then copy the RAID driver from the below drivers link onto the Windows 10 USB Flash disk, when you are at the partition selection wizard in Windows 10, you will notice that your NVMe SSDs are not showing, simply click LOAD DRIVER, then point it to the RAID Driver folder that you have placed on your USB Flash disk and within a few moments after the RAID driver has been loaded, the NVMe drive will show up.

It is imperative that you only have 1 drive installed when installing Windows otherwise the Windows Setup has a nasty habit of placing the boot files on the 2nd drive if it finds one which will cause headaches in the future when creating image backups of your OS and slower boot performance if you had an HDD(s) in the 2.5" bays.

Windows 10 Tweaks and Fixes
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How to install Windows 7 on Samsung 950 PRO
Windows 7 Drivers
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After you have installed and configured Windows 10 to your liking, here are the latest drivers and the correct installation order:

Clevo P870DM/DM-G Drivers Mirror
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Clevo P870DM Customization (Phoenix Wallpapers, User Account Avatars, OEM Info, etc.)
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For those of you who's system has the Prema BIOS, here is a quick walk through of the most important options, what they do, and how to get a 4.2 GHz overclock on all cores + lower the temps down as the default voltage is way too high which causes a lot of overheating / thermal throttling:

Prema BIOS Installation Guide:

Prema BIOS Walkthrough / 4.2 GHz on all cores settings

Here are the safe/stable settings for a 4.2GHz overclock on all 4 cores with cache ratio set to 42, no throttling, max temps of 80-85C while gaming using stock IC Diamond / no CPU delid

System stability done using AID64 and monitoring using HWMonitor

Tested on my previous Eurocom Sky X9 and now the current Sky X9, so it was perfectly safe on 2 systems

Settings suggested by @Mr. Fox

If you get any hardlocks/freezing even though the temps are not very high, just increase the offset voltage for CPU Core/Cache Ratio from -115 mV to -100mV

Warning, if for any reason the above settings were not 100% stable for you, then try decreasing the undervolt by +10mV then test again. They were stable on 2 systems that I owned but no CPU is the same so you might have to tweak a little bit. This will give you a good starting point and understanding of the settings though.
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For those without the Prema BIOS, here are the XTU settings that I helped a fellow forum member setup, the only thing you wanna change in the below settings is to set all multipliers to x42, he initially wanted to play safe and thus chose a 42,41,41,41 multiplier:

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Clevo P870DM n00bie's guide