CPU Machine Check Architecture Error Dump

iMac is constantly crashing / re-starting and I'm at a complete loss as to whats causing the issue.

I see quite a few posts on the subject, but nothing appears to be conclusive or followed up on which is strange..

Any advice please?

3.8 GHz 8-Core Intel Core i7

Sonoma 14.0 but this has been happening well before the update

Error report:

CPU Machine Check Architecture Error Dump (CPU: UNKNOWN, CPUID: 0xA0655)

Core: 0 

 IA32_MC3_STATUS=0xBE00000000800400

 IA32_MC3_CTL=0x0

 IA32_MC3_ADDR=0xFFFFFF800439CC38

 IA32_MC3_MISC=0xFFFFFF800439CC38

Core: 0 

 IA32_MC4_STATUS=0xFE00000000800400

 IA32_MC4_CTL=0x0

 IA32_MC4_ADDR=0xFFFFFF800439CC38

 IA32_MC4_MISC=0xFFFFFF800439CC38

Core: 0 

 IA32_MC11_STATUS=0xEE0000000040110A

 IA32_MC11_CTL=0x0

 IA32_MC11_ADDR=0xFF7ECA00

 IA32_MC11_MISC=0x3880000086

Core: 0 

 IA32_MC12_STATUS=0xEE0000000040110A

 IA32_MC12_CTL=0x0

 IA32_MC12_ADDR=0xFF7EC9C0

 IA32_MC12_MISC=0x43880000086

Core: 0 

 IA32_MC13_STATUS=0xEE0000000040110A

 IA32_MC13_CTL=0x0

 IA32_MC13_ADDR=0xFF7EC980

 IA32_MC13_MISC=0x43880000086q