what is the highest CPU can be added to this board and bios is updated

[Sally Solomon]

what is the highest CPU can be added to this board and bios is updated and what changes needed fan and so it , bios is updated as below , any other ?

Main Circuit Board b
Board: Hewlett-Packard 0AE8h C
Serial Number: 2UA01104C1
Bus Clock: 5866 megahertz
BIOS: Hewlett-Packard 786G4 v03.60 02/24/2016

Does it accept i7 ? purpose is Gaming

Current is :

Processor a
2.27 gigahertz Intel Xeon E5520 (2 installed)
64 kilobyte primary memory cache
256 kilobyte secondary memory cache
8192 kilobyte tertiary memory cache
64-bit ready
Multi-core (8 total)
Not hyper-threaded

 

[Calvin7]

•Intel Xeon Processor X5570 QC 2.93 GHz, 95W, 8M cache, 6.40GT/s QPI, DDR3 1333 MHz, HT, Turbo

Does it accept i7 ? No.