Not being able to boot

I have an Acer Predator Helios 300 (PH315-51-50ST) since start of 2019. There have been thermal issues/throttling since the beginning, especially when playing games. Undervolting had initially helped to keep the temps somewhat manageable (70-80C) under load. However recently it has been...

So, when I power on my PC the fans all spin up but nothing else happens. There is no output to either of the monitors and the caps lock button does not seem to work. Originally even the fans but that was fixed after removing and replacing the CMOS battery. I've since tried only using one RAM...

I swapped out my motherboard and cpu (https://www.gigabyte.com/Motherboard/GA-PH67-DS3-B3-rev-10#ov , https://ark.intel.com/content/www/us/en/ark/products/52207/intel-core-i5-2400-processor-6m-cache-up-to-3-40-ghz.html) and the ram...

Hello, Can you Help me i want to overclock Ram Whats the best suit Mhz tht my mobo support? And what timings shoud i choose n also the voltage Here is my pc Specs -- Amd A6 7400K ECS A58F2P-M4 Ram 8GB venom RX 1600Mhz Hdd Wd green 500Gb Gtx 1050 2gb ddr5 --- Thanks kmcP