I have a biostar TA870U3+ socket AM3 I was looking at AMD FX-8120 Zambezi 3.1GHz socket AM3+. My question will the AMD FX-8120 Zambezi 3.1GHz be compatible with my motherboard ??? I am currently running an AMD 1090T
According to wikipedia:
''Some manufacturers have brought AM3+ support to some of their AM3 motherboards via a simple BIOS upgrade. Mechanical compatibility has been confirmed and it's possible for AM3+ CPUs to fit in AM3 boards, provided they can supply enough peak current. Another issue is the use of the sideband temperature sensor interface for reading the temperature from the CPU. Therefore, some CPU PWM fan pins may only run at full speed. Also, certain power-saving features may not work, due to lack of support for rapid VCore switching. Note that use of AM3+ CPUs in AM3 boards is not officially supported by AMD.''
With a 1090T there is no reason to even purchase an 8120 any ways, it's not an upgrade except in very few applications because it's not a true 8 core and relies on higher clock speeds to match Phenom II performance.