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I purchased a brand new laptop HP Compaq 620 from a local New Zealand supplier a few years ago, and it has been working very well. Its CPU is Intel T4500, Graphic is Mobile Intel® GM45 Express Chipset, the RAM is 4GB, and it is with 500GB HDD. Now I want to upgrade it to be with better CPU (Quad-Core), 8GB RAM and 500GB SSD.

 

I did some research of my laptop (I also checked the Maintenance and Service guide of this laptop from http://h10032.www1.hp.com/ctg/Manual/c02780494) and the hardware I want to upgrade to, and I found the Intel Q9000 CPU which supports Virtualization Technology, is with Quad-Core, and seems supporting the same socket type.

 

This URL link https://support.hp.com/nz-en/document/c02104598?spm=a2g0s.imconversation.0.0.16803e5f7xLTJi has the details of its product description. From this information I think the Intel Q9000 CPU should support the hardware system of my laptop. However I think it is good to ask the manufacturer to help to finally confirm this. Moreover whether this upgrade could make potential problem to my laptop in the future? If this Intel Q9000 CPU doesn't support my Compaq 620 laptop, why not and could you recommend the suitable laptop CPU(s) which support the same socket type, support Virtualization Technology and with Quad-Core?

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