STM32F722RET6 increasing HCLK frequency issue

[NChor.1]

There is external crystal on my PCB Mfr part: X1E0003410273 I am working on STM32 Cube IDE. At first whenever I enabled external crystal my program did not run at all. Even In low frequencies. Then I enabled Clock Secure System (CSS) Now my program is running with external crystal with 48MHz HCLK but when I try to increase it more than 48Mhz program stops running again. I am beginner in stm32 and only working with Cube IDE. Is there problem with external crystal I choose or something else?

Here is my Clock configuration

[Tesla DeLorean · Accepted solution]

Check VCAP capacitors and voltages.

Check VOS settings

Check Flash Latency

Check HSE or internal clocks via PA8/MCO

[NChor.1]

Thank you so much. It was issue with VCAP