EU Gigabyte Mainboard MC12-LE0 Re1.0 AMD B550 AM4 Ryzen

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hirschma

New Member
Jan 4, 2025
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conf_f said:
I run 2x Kingston 9965745-042.A01G on one MB and 2x Kingston 9965745-026.A00G on anaother

works perfectly fine. Be careful not to buy accidentially RegECC sticks, not every offer on eBay is clear and they are often cheaper than unregistered ECC.... Just bought 32 GB RegECC for a Gigabyte MJ11 for 50 bucks....
Click to expand...
Just for price guidance - I got my four sticks of ECC 32GB 3200 for $118 - less than a $1/GB :) Considering that DDR5 is becoming cheaper (got 96GB "gaming" RAM for $189 during recent sales), I'd expect that used DDR4, no matter the flavor, is going to be very cheap on the used market for a while.
 
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BMacD

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May 17, 2019
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@hirschma Very curious where you got that price. I have not seen 32GB DDR4 ECC UDIMMs less than about $100 each. The RDIMMs are cheap but even used UDIMMS still almost full retail on eBay.

(Edit)
Ahh - reading your earlier post you said they were from eBay. You got an extremely good deal, about 25% of what I can see as the normal price. Generally, UDIMMs are a royal pain to source at a reasonable price.
 
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Cruzader

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Jan 1, 2021
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BMacD said:
(Edit)
Ahh - reading your earlier post you said they were from eBay. You got an extremely good deal, about 25% of what I can see as the normal price. Generally, UDIMMs are a royal pain to source at a reasonable price.
Click to expand...
To get them priced about same as rdimm does take a fair bit of regularly looking on ebay id say, basicly need to get them from sellers not realising its udimm or that udimm is priced higher than rdimm.

Ive paid 110-125$ per 4x32gb set for mine and that took a while to find.
 
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TheColin21

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Aug 4, 2025
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Hi, I've been using the MC12-LE0 for quite a while and since I installed an ARC A310 all video output goes to this GPU instead of the built-in Aspeed VGA. That makes the remote viewer unusable but I cannot find an option to set the primary display device in BIOS. How can I change this behaviour?
 
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RolloZ170

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Apr 24, 2016
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TheColin21 said:
That makes the remote viewer unusable but I cannot find an option to set the primary display device in BIOS. How can I change this behaviour?
Click to expand...
remote viewer uses the VGA integrated in the BMC chip, only this source can be used.
the ASPEED BMC chip has no access to PCIe GPUs memory.
 
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TheColin21

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Aug 4, 2025
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RolloZ170 said:
remote viewer uses the VGA integrated in the BMC chip, only this source can be used.
the ASPEED BMC chip has no access to PCIe GPUs memory.
Click to expand...
I know, that's not what I want to do. The A310 is only used for transcoding. I want video output through the Aspeed's VGA.
Sorry if that was not clear.
 
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TheColin21

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Aug 4, 2025
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RolloZ170 said:
try this to see hidden options.
Go to any config page, then press RightCtrl + RightShift then press F2, then the bios will display all hidden options.
Click to expand...
fascinating, never heard of hidden options in BIOS that have to be activated in that way. I will try. Where can I find more information about this? (I mean the hidden options).
 
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RolloZ170

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Apr 24, 2016
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TheColin21 said:
Where can I find more information about this? (I mean the hidden options).
Click to expand...
UEFITool, ectract the Setup module. extract BIOS Option with IFRextractor.
Code: 
        GrayOutIf
            EqIdVal QuestionId: 0x24B, Value: 0x1
            SuppressIf
                EqIdVal QuestionId: 0x258, Value: 0x1
                    Not
                End
                SuppressIf
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                    GrayOutIf
                        True
                        OneOf Prompt: "Primary Video Adaptor", Help: "Select Internal/External Graphics.", QuestionFlags: 0x14, QuestionId: 0x2747, VarStoreId: 0x1, VarOffset: 0x1B3, Flags: 0x10, Size: 8, Min: 0x1, Max: 0x2, Step: 0x0
                            Default DefaultId: 0x0 Value: 2
                            Default DefaultId: 0x1 Value: 2
                            OneOfOption Option: "Int Graphics (IGD)" Value: 1
                            OneOfOption Option: "Ext Graphics (PEG)" Value: 2
                        End
                    End
                    Subtitle Prompt: "", Help: "", Flags: 0x0
                    End
                End
                SuppressIf
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                End
            End
        End
Code: 
        GrayOutIf
            EqIdVal QuestionId: 0x24B, Value: 0x1
            SuppressIf
                EqIdValList QuestionId: 0x258, Values: [0, 1, 8, 9]
                SuppressIf
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                    OneOf Prompt: "Integrated Graphics Controller", Help: "Enable Integrated Graphics controller.", QuestionFlags: 0x14, QuestionId: 0x274B, VarStoreId: 0x1, VarOffset: 0x1AC, Flags: 0x10, Size: 8, Min: 0x0, Max: 0xF, Step: 0x0
                        Default DefaultId: 0x0 Value: 0
                        Default DefaultId: 0x1 Value: 0
                        OneOfOption Option: "Disabled" Value: 0
                        OneOfOption Option: "Forces" Value: 2, MfgDefault
                        OneOfOption Option: "Auto" Value: 15
                    End
                    SuppressIf
                        EqIdVal QuestionId: 0x274B, Value: 0x2
                            Not
                        End
                        OneOf Prompt: "UMA Frame buffer Size", Help: "Set UMA FB size.", QuestionFlags: 0x14, QuestionId: 0x274C, VarStoreId: 0x1, VarOffset: 0x1AE, Flags: 0x12, Size: 32, Min: 0x40, Max: 0xFFFFFFFF, Step: 0x0
                            OneOfOption Option: "Auto" Value: 4294967295, Default, MfgDefault
                            OneOfOption Option: "64M" Value: 64
                            OneOfOption Option: "128M" Value: 128
                            OneOfOption Option: "256M" Value: 256
                            OneOfOption Option: "512M" Value: 512
                        End
                    End
                    OneOf Prompt: "Chipset HD audio", Help: "Chipset HD audio enabled or disabled.", QuestionFlags: 0x14, QuestionId: 0x274D, VarStoreId: 0x1, VarOffset: 0x1B2, Flags: 0x10, Size: 8, Min: 0x0, Max: 0x1, Step: 0x0
                        Default DefaultId: 0x0 Value: 1
                        Default DefaultId: 0x1 Value: 1
                        OneOfOption Option: "Disabled" Value: 0
                        OneOfOption Option: "Enabled" Value: 1, MfgDefault
                    End
                    Subtitle Prompt: "", Help: "", Flags: 0x0
                    End
                    OneOf Prompt: "Primary Video Adaptor", Help: "Select Internal/External Graphics.", QuestionFlags: 0x14, QuestionId: 0x274E, VarStoreId: 0x1, VarOffset: 0x1B3, Flags: 0x10, Size: 8, Min: 0x1, Max: 0x2, Step: 0x0
                        Default DefaultId: 0x0 Value: 2
                        Default DefaultId: 0x1 Value: 2
                        OneOfOption Option: "Int Graphics (IGD)" Value: 1
                        OneOfOption Option: "Ext Graphics (PEG)" Value: 2
                    End
                    Subtitle Prompt: "", Help: "", Flags: 0x0
                    End
                End
                SuppressIf
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                End
            End
        End 
        GrayOutIf 
            EqIdVal QuestionId: 0x24B, Value: 0x1
            SuppressIf 
                EqIdVal QuestionId: 0x258, Value: 0x8
                    Not 
                End 
                SuppressIf 
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                    GrayOutIf 
                        True 
                        OneOf Prompt: "Primary Video Adaptor", Help: "Select Internal/External Graphics.", QuestionFlags: 0x14, QuestionId: 0x2752, VarStoreId: 0x1, VarOffset: 0x1B3, Flags: 0x10, Size: 8, Min: 0x1, Max: 0x2, Step: 0x0
                            Default DefaultId: 0x0 Value: 2
                            Default DefaultId: 0x1 Value: 2
                            OneOfOption Option: "Int Graphics (IGD)" Value: 1
                            OneOfOption Option: "Ext Graphics (PEG)" Value: 2
                        End 
                    End 
                    Subtitle Prompt: "", Help: "", Flags: 0x0
                    End 
                End 
                SuppressIf 
                    EqIdVal QuestionId: 0x14D, Value: 0x0
                End 
            End 
        End
 
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TheColin21

New Member
Aug 4, 2025
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RolloZ170 said:
UEFITool, ectract the Setup module. extract BIOS Option with IFRextractor.
Click to expand...
Interesting. I am currently trying to do so but there are lots of unknown GUIDs in the BIOS, when I try to search UEFITool hangs and so I've been able to find the setup file. Is there a guide to this? Never played around with UEFI files before.

Also in your code snipped there are only Internal and External graphics which normally would mean the iGPU of the CPU (in my case a Ryzen 4650G) or an external GPU (in my case the A310). There seems to be no 3rdoption for the BMC's VGA. Or was the snippet just an example?

Edit: Correction - I found where you took the snippet from. I still don't know if that option will help in my case and a guide would still be much appreciated.
Also: how can I find the key combination to access hidden settings on different types of mainboards?
 
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RolloZ170

Well-Known Member
Apr 24, 2016
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TheColin21 said:
when I try to search UEFITool hangs and so I've been able to find the setup file. Is there a guide to this? Never played around with UEFI files before.
Click to expand...
use UEFIToolNE to search and extract.
search for (Text) "Primary Video Adaptor"
TheColin21 said:
There seems to be no 3rdoption for the BMC's VGA. Or was the snippet just an example?
Click to expand...
example what you can expect. but from MC12-LE0 BIOS.
options may change with BIOS versions.
TheColin21 said:
Also: how can I find the key combination to access hidden settings on different types of mainboards?
Click to expand...
this is not a feature of all vendors.
but this afaik work for all gigabyte server motherboards.
 
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luckylinux

Well-Known Member
Mar 18, 2012
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RolloZ170 said:
try this to see hidden options.
Go to any config page, then press RightCtrl + RightShift then press F2, then the bios will display all hidden options.
PCIe GPU is called PEG
Click to expand...
Is that a generic "Trick" that works on many Motherboards and/or related to a specific BIOS Vendor ?
 
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