CPU core underpowered — voltage dropping to near zero? Intel i7 4790K
CPU core underpowered — voltage dropping to near zero? Intel i7 4790K
Hello, my PC runs an Intel i7 4790K on an Asus Z87-Expert board. It hasn't been used much for about seven years since my father passed away. Now I'm trying to get it running again and everything seems fine, but I keep seeing warnings that the vCore drops to a very low level every few seconds. I checked online benchmarks—when the CPU is at full load, the vCore stays around 1,252V, which looks normal. However, when I run the PC at high usage, the vCore drops significantly. I'm wondering if this means the CPU is failing or if the motherboard is having issues. The voltage lines (12V, 5V, 3.3V) don't change much, so it probably isn't a power supply problem. Please see my screenshots for more details.