Hello My PC (Asus z270l and 7700k) does not like to boot promptly anymore, however once in Windows is still happy to run at 5ghz and pass an Intel burn test. If I try to overclock from the BIOS though, it won't boot. Even 4.8ghz all core. Even waking it from sleep, it hangs and then appears to shut down, but then displays my desktop where I left of. On a full shutdown, it gets to the Asus logo screen, green light on motherboard and hangs. Caps lock key won't respond. Then I hold down the power button and press it again and it boots as normal. I've cleared CMOS ram many times. Yesterday I transferred my PC from an NZXT H200i into an Ncase V6.1. I delidded the CPU a couple weeks ago. It has been running at 5ghz well and fine with a Kraken X52 on it. When I transferred the motherboard into the new case I did go to town with a can of compressed air and alcohol on a cotton swab for dust. Any thoughts as to whether it is software or hardware problem?