Hi I want to upgrade my CPU from my current AMD Phenom 9150e 1.8GHz Quad Core To AMD Phenom II X4 850 Sk AM3 3.3Ghz [url="http://www.byhunt.co.uk/tech/index.php?route=product/product&product_id=32059"]http://www.byhunt.co.uk/tech/index.php? ... t_id=32059[/url] I've updated my BIOS to the latest here is a CPU-Z picture [URL]http://gyazo.com/d95de570a945108162046989c51898b3.png[/URL] [img]http://gyazo.com/d95de570a945108162046989c51898b3.png[/img] And my current CPU is AM2+ and I believe AM3 cpus support AM2+ right? [img]http://gyazo.com/9278fd9f4f2736e799ba3a184966972e.png[/img] [URL]http://gyazo.com/9278fd9f4f2736e799ba3a184966972e[/URL] And this is any files/manuals that you might need to check: [url=http://support.acer.com/us/en/product/default.aspx?tab=1&modelId=348]Acer Support: Downloads & Support Documents - Desktop / Aspire / Aspire M3201[/url] [url=http://support.acer.com/acerpanam/desktop/2010/acer/Aspire/AspireM3201/AspireM3201nv.shtml]Acer Support: AspireM3201*Acer Aspire M3201 Desktop Series[/url] Today i tried an AMD Phenom 960T but I got a mismatch error this maybe due to the fact that the CPU can support 6 Cores and my motherboard cant..