PC Doesn't Boot Windows after CPU Upgrade
My PC has Intel Core i5 9600k and AORUS Z390 Pro Wifi Motherboard, I decided to buy Core i9 9900K since I started to need it, So I Installed the CPU added the thermal paste and the Cooler is Kraken X62, My PC should the Aorus Logo and then froze ! So I checked with BIOS found the CPU i9 showing in the BIOS, So I made sure I have the Win 10's SSD selected in the Boot menu, but keeps freezing on the Arous Screen , some time shows the Aorus logo and saying Preparing repair, but also freezes there, So I thought maybe the Windows got messed up or something, So I tried to re install windows by inserting the Windows 10 USB Drive, And selected it as boot drive, also showed up Windows Logo then froze as well ! tried to make my own Windows 10 bootable USB Drive and same issue, So I thought maybe its the New CPU, so I re installed my Core i5 and the PC booted normally and the windows and everything still the same !?
So my question here : Is the new CPU Core i9 9900k Is defective for example ? or I'm I missing something here ?
Because even if its the windows, I can't even boot to the windows 10 installation.
And is it possible that my Motherboard shows the i9 installed and shows its clock speed but its defective for example ?
Because as far as I know my build is compatible with the new Processor.
Thanks in advance.
81 Answer
As confirmed by the user, BIOS (UEFI Firmware update) fixed the issue.
In case your Windows 10 install hangs or freezes at Windows logo then do check what is the current BIOS (Firmware) revision on your Motherboard and if the vendor has released any latest firmware taking care of any previously known issues that may help detect and work with high end CPUs or specific memory models or any other hardware interface.
Freeze at Windows 10 logo could mean some sort of hardware incompatibility or driver issue many a times and one try is to check and update the Firmware and see if the issue resolves.
Sometimes one can even try installing only one piece of hardware e.g. only one RAM at a time, only one SSD/HDD at a time etc to check if any other hardware as well is causing the hang.
In this case user updated the Firmware to the revision F11 (From earlier F8 which was quite old) and as reported by the user, he was able to proceed with clean install of Windows 10 without any further issues.
In the Firmware setup, unless absolutely necessary like enabling CPU Virtualization or trying some overclocking settings, it's suggested to leave the settings at Optimized Defaults.
