BIOS mod for Intel Core 2 Extreme QX9650

Subject: Dell XPS 720. Need to unlock a installed QX9650
i have upgraded the CPU recently upgraded from a Intel Core 2 QX6850 to a QX9650 which seems to run perfectly except that the overclock speed adjustment is locked in the bios. The QX9650 is a unlocked CPU and I have read that it is not supported by the XPS 720 bios or motherboard. I am looking for help in modifying the bios to unlock the QX9650. The motherboard is a Dell OEM BTX board red in color with a Foxconn LS-36 sticker on it. Further research also shows to be manufactured by DFI LANPARTY UT P45-T2RS. The chipset is the NVIDIA nForce 680i chipset based using freestyle Award BIOS IDs from what I gather.  There is also a reference to a Foxconn bios 723F1P14. EVGA also has a 680i motherboard.
Original Dell XPS 720 bios link: https://www.dell.com/support/home/us/en/...erid=cjckm
The Nvidia nforce 750i SLI, 780i SLI and 790i SLI show to support the QX9650: https://www.nvidia.com/content/nforce700...U_List.pdf
Specs on both CPUs:
QX6850 (Kentsfield)
Sspec: SLAFN
Stepping: GO
Cupid: 06FB(h)?
LGA775 65nm 1333MHz


  QX8650.png (Size: 53.92 KB / Downloads: 3)
  QX8650-1.png (Size: 30.45 KB / Downloads: 2)




QX9650 (Yorkfield)
Sspec: SLAN3
Stepping: CO
Cupid: CO
LGA775 45nm 1333MHz


  QX9650.png (Size: 46.84 KB / Downloads: 1)


  IMG_20200217_075813.jpg (Size: 117.43 KB / Downloads: 2)


  IMG_20200217_084406.jpg (Size: 358.75 KB / Downloads: 1)





I can only hope I have provided enough of the correct information needed. Thank you, Rocketdog