EU ASRock Rack B450D4U-V1LQ5 mATX AM4

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RolloZ170

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Apr 24, 2016
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luckylinux said:
THEN show the different Memory Frequency/Timing Settings (e.g. the one at the beginning of this Post). Otherwise do NOT show the Memory Tuning Setting.
Click to expand...
sure Questionid's are used for this too.
have tried to run SPR-SP (support up to4800) with 5600 RAM. but limit is set by BIOS code before based on CPU gen (4th=max.4800,5th=max.5600)
 
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luckylinux

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Mar 18, 2012
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Maybe I need to also try another one (Combo CBS) which seems to enable A LOT of More Options ...

Code: 
grep -ri "QuestionId: 0x9," File_DXE_driver_CbsSetupDxeSSP_CbsSetupDxeSSP_body.fbd.0.0.en-US.ifr.txt | grep -i "VarOffset"
            Numeric Prompt: "Combo CBS", Help: "No help string", QuestionFlags: 0x10, QuestionId: 0x9, VarStoreId: 0x5000, VarOffset: 0x20, Flags: 0x20, Size: 8, Min: 0x0, Max: 0xFF, Step: 0x0
Full Section:
Code: 
SuppressIf
                        EqIdVal QuestionId: 0x9, Value: 0xFF
                                Not
                        End
                        Numeric Prompt: "Combo CBS", Help: "No help string", QuestionFlags: 0x10, QuestionId: 0x9, VarStoreId: 0x5000, VarOffset: 0x20, Flags: 0x20, Size: 8, Min: 0x0, Max: 0xFF, Step: 0x0
                                Default DefaultId: 0x0 Value: 254
                        End
                End

So something such as (for File_DXE_driver_CbsSetupDxeSSP_CbsSetupDxeSSP_body):
Code: 
setup_var.efi AmdSetup(0x5000):0x20=0xFF
Is the Not as I think it is ? So Suppress if QuestionId(0x9) != 0xFF ?
 
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luckylinux

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Mar 18, 2012
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Do you have a contact at ASROCK to ask for a Fix otherwise ? And are you actually owning this Board or just providing general Insights ? I might have missed this, I saw you shared L2.08, L2.09 and L2.12 BIOS Versions with us, but I wasn't sure if you actually owned the Board and are facing / faced the same Issue with 5000 Series CPUs.

I'm really Puzzled that this Motherboard don't support / enable ECC Memory for 5000 Series CPUs where they claim they "support" the CPU ...
 
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RolloZ170

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Apr 24, 2016
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luckylinux said:
Is the Not as I think it is ? So Suppress if QuestionId(0x9) != 0xFF ?
Click to expand...
correct.
look here: so far i don't know what Questionsflags do.
Code: 
        SuppressIf
            EqIdVal QuestionId: 0x8, Value: 0xFF
                Not
            End
            Numeric Prompt: "Combo CBS", Help: "No help string", QuestionFlags: 0x10, QuestionId: 0x8, VarStoreId: 0x5000, VarOffset: 0x20, Flags: 0x20, Size: 8, Min: 0x0, Max: 0xFF, Step: 0x0
                Default DefaultId: 0x0 Value: 254
            End
        End
 
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luckylinux

Active Member
Mar 18, 2012
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RolloZ170 said:
correct.
look here: so far i don't know what Questionsflags do.
Code: 
        SuppressIf
            EqIdVal QuestionId: 0x8, Value: 0xFF
                Not
            End
            Numeric Prompt: "Combo CBS", Help: "No help string", QuestionFlags: 0x10, QuestionId: 0x8, VarStoreId: 0x5000, VarOffset: 0x20, Flags: 0x20, Size: 8, Min: 0x0, Max: 0xFF, Step: 0x0
                Default DefaultId: 0x0 Value: 254
            End
        End
Click to expand...
I guess you pulled the same Section from another CBS / File, hence 0x8 instead of 0x9.

I also don't know what QuestionFlags do :rolleyes:

That's why I would like to try setting it to 0xFF (255) hence enabling that Menu.

Of course, provided as you said, that there is no Hardware hardcoded Supplementary Condition that we CANNOT bypass.
 
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luckylinux

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RolloZ170 said:
only by reverse engineering the first Dxe which then forwards to the matching special Cbs for the detected CPU type...
Click to expand...
So you think that there is such a Check in Place after all ?

My hypothesis was that I just tried to set the wrong VarOffset for the wrong Dxe File (hence I wanted to try with the other 3 VarOffset Values) ...

But what CPU are you running then ? Or you just gave up on ECC entirely ?
 
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RolloZ170

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luckylinux said:
So you think that there is such a Check in Place after all ?
Click to expand...
yes. x86 code ( reverse engineering )
luckylinux said:
My hypothesis was that I just tried to set the wrong VarOffset for the wrong Dxe File (hence I wanted to try with the other 3 VarOffset Values) ...
Click to expand...
i guess nobody listen to that hiddne options later.
luckylinux said:
But what CPU are you running then ? Or you just gave up on ECC entirely ?
Click to expand...
i don't have that board.
 
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luckylinux

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@ALinden: did you get your 5700X from a Trusted Source or 2nd Hand on Aliexpress like me ? I'm just wondering if the CPU could be Fake and that's why it's acting weirdly ...
 
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luckylinux

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RolloZ170 said:
the usual way to unhide option menu is move them out of the "suppress if... end" clamp.
Click to expand...
But if you tell me that there is anyway some hardware encoded Part, how would that work ?

And that would require Patching the BIOS ...

Another Option for those Lazy and Interested could be to request a Custom ROM over at BIOS/UEFI Modding ... But that is NOT free.

Easier would be asking ASRock, but most likely that's also NOT free ...
 
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RolloZ170

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luckylinux said:
But if you tell me that there is anyway some hardware encoded Part, how would that work ?
Click to expand...
same way than BoringBoredom/UEFI-Editor but by hand.
but if no code os looking to that options there will be no effect.
btw: if you enable ECC, have you checked if that setting remained a reboot ? efi shell is too late to enable ECC.
 
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RolloZ170

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luckylinux said:
Easier would be asking ASRock, but most likely that's also NOT free ...
Click to expand...
have some experience with asrock rack. i am done with them.
but bought a SPC741D8UD recently, only reason was the price.
and first BIOS flash destroyed the content of BIOS chip, without valid Intel ME, no BIOS flash after that,
replace BIOS chip with a working one and update BMC FW resolved that.
 
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luckylinux

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RolloZ170 said:
same way than BoringBoredom/UEFI-Editor but by hand.
but if no code os looking to that options there will be no effect.
btw: if you enable ECC, have you checked if that setting remained a reboot ? efi shell is too late to enable ECC.
Click to expand...
Well I would hope that it persists reboot (but Good Point, I would have to re-read the same Variable from UEFI Shell after Reboot).

Agree it's too late to enable it (BIOS needs to do the Entire Memory Clear Cycle during POST), but IF it survives reboot, then it doesn't really matter. Like ... did you really care that you didn't have ECC in UEFI Shell when you didn't have it to begin with? Important is that you have it AFTER.

My impression was that setup_var.efi could be impacted when manually changing Settings later on. But I always thought that it survived Reboots.
 
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