I have seen some screenshots in HWBOT.org from Prema’s CPU Frequency score in the Core i7 9750H and noticed that all cores are running under load with 45x multiplier.
I have searched my Dell G5 5590 BIOS and found some parameters like “1-Core Ratio Limit Override” and “6-Core Ratio Limit Override”. I managed to change 6-Core Ratio Limit Override from 40 to 45 using the grub EFI, changing the var 0x65C from 40 to 45, but the maximum multiplier achieved with all cores actives still 40x.
Also have found this:
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0x125BC6 Text: Statement.Prompt: 6-core Turbo Ratio, TextTwo: {03 08 8C 03 8B 03 8D 03}
0x125BCE End If {29 02}
0x125BD0 Suppress If {0A 82}
0x125BD2 Question Ref1: QuestionId: 0xF95 {40 84 95 0F}
0x125BD6 8 Bit Unsigned Int: 0x7 {42 03 07}
0x125BD9 Less Than {33 02}
0x125BDB Question Ref1: QuestionId: 0x25D {40 04 5D 02}
0x125BDF 8 Bit Unsigned Int: 0x7 {42 03 07}
0x125BE2 Less Than {33 02}
0x125BE4 QuestionId: 0x25D equals value 0x0 {12 06 5D 02 00 00}
0x125BEA Not {17 02}
0x125BEC And {15 02}
0x125BEE Or {16 02}
0x125BF0 End {29 02}
But I don't know how to mannualy set the 6-core Turbo Ratio to 45x.
I have unlocked the XTU Interface by changing to 0x72D to 0x1, which allows me to increase the multipliers, but when the machine reboots to apply the setup, it fails. Interestingly, XTU allows me to enable XMP which was posed as "unsupported" by Dell and overclock the memory to 2933 Mhz.
@Lost_N_BIOS any help is this matter is greatly appreciated!