Technocd

@Nobody.jp Would it be possible to make Bios version 1.3 (the latest version) and update that to include the hidden CPU feature so we could have the latest? Or it does not make any difference?

Dear Oskarha Thank you for your great guide. It has brought life to an old board/ram with a much faster Cpu with SSD that does everything but modern gaming. It can even play a LOT of modern games with a good enough GPU. I have been able to get Destiny 2 playing on this with only 4GB ram. The only issue with these old computers is RAM. We cannot upgrade to 8GB Ram which I believe is Supported by BIOS 1.3.0 But this BIOS does not have any option to disable C-State. I hope someone can make a BIOS that can allow disable C-State for 1.3.0 and allow for more than 4GB Ram. With 8GB RAM this system would be perfect.

More informations + Backup Upload BIOS 1.2.0 Dont need to disable Speedstep or C1E support. Only disable C-STATE. Tested and Working on Dell Vostro 220 + Xeon E5450 Overclocked with SetFSB PLL Using : CV184-2APAG (NEC Express5800 S70 Type FL) 3.3GHz Note if you Overclock with SetFSB you will need to change some settings in Windows using Windows administrator command prompt bcdedit /set useplatformclock yes bcdedit /set tscsyncpolicy Enhanced bcdedit /set disabledynamictick yes These will set things back to default if your system doesn't like them... bcdedit /set useplatformclock no bcdedit /set tscsyncpolicy Default bcdedit /set disabledynamictick no You will need to reboot after any bcdedit. A tiny program called WinTimerTester will show QueryPerformanceFreq 14.31818 MHz Run it for 300 seconds you will see Ratio value QueryPerformanceFreq/GetTickCount to reach 1 This SetFSB overclock method will ensure that the PC clock remains functioning normally Modded BIOS Credit to : Nobody.jp 7C4D1P43withXeon.rom