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GIGABYTE MS03-CE0 + Intel Xeon Emerald Rapids EMR-SP

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RZSN

Member
Mar 4, 2023
35
7
8
i guess this is your issue. (IRQ remapping not supported without X2APIC)
Well, the BIOS setting does say Extended APIC, not x2APIC like I googled now and saw on some screenshots. Yet the EMR should have an x2APIC - so I assume that is dependant on the BIOS support then? X2 does exist from Intel Core era ... so.. why its not there on (my) ES EMR? (or is that a specific differentiator for the ES?)
 

TrevorH

Active Member
Oct 25, 2024
275
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I'm not familiar with gentoo - I ran it briefly about 20 years ago but have forgotten everything about it. Somewhere it is likely there is a copy of the .config file used to build your kernel. On Fedora and similar rpm based distros it's installed in /boot/config-$(uname -r) and to check if remapping is enabled you'd grep REMAP /boot/config-$(uname -r) and look to see if CONFIG_IRQ_REMAP=y is set.
 

RZSN

Member
Mar 4, 2023
35
7
8
@TrevorH - the kernel is afaik OK.

I do have:
IRQ_REMAP [=y]
Depends on: IOMMU_SUPPORT [=y] && X86_64 [=y] && X86_IO_APIC [=y] && PCI_MSI [=y] && ACPI [=y]

As it is a pre-requisite for:
X86_X2APIC [=y]
Depends on: X86_LOCAL_APIC [=y] && X86_64 [=y] && (IRQ_REMAP [=y] || HYPERVISOR_GUEST [=n])

With the BIOS Extended APIC set to disabled (in order to be able to boot at least), I have this in dmesg:
# dmesg | grep -i apic -C 2
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000407fffffff] System RAM
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] APIC: Static calls initialized
[ 0.000000] efi: EFI v2.9 by American Megatrends
[ 0.000000] efi: ACPI=0x71400000 ACPI 2.0=0x71400014 TPMFinalLog=0x713cf000 SMBIOS=0x76f9b000 SMBIOS 3.0=0x76f9a000 MEMATTR=0x66388118 INITRD=0x609b4a98 TPMEventLog=0x6dc99018
--
[ 0.010958] ACPI: MSCT 0x000000006E00C000 000090 (v01 GBT GBTUACPI 00000001 INTL 20091013)
[ 0.010961] ACPI: WDDT 0x000000006E00B000 000040 (v01 GBT GBTUACPI 00000000 INTL 20091013)
[ 0.010965] ACPI: APIC 0x000000006E009000 00025E (v04 GBT GBTUACPI 00000000 INTL 20091013)
[ 0.010968] ACPI: SRAT 0x000000006E001000 007830 (v03 GBT GBTUACPI 00000002 AMI 01000013)
[ 0.010971] ACPI: SLIT 0x000000006E000000 000030 (v01 GBT GBTUACPI 01072009 AMI 01000013)
--
[ 0.011033] ACPI: Reserving MSCT table memory at [mem 0x6e00c000-0x6e00c08f]
[ 0.011034] ACPI: Reserving WDDT table memory at [mem 0x6e00b000-0x6e00b03f]
[ 0.011035] ACPI: Reserving APIC table memory at [mem 0x6e009000-0x6e00925d]
[ 0.011036] ACPI: Reserving SRAT table memory at [mem 0x6e001000-0x6e00882f]
[ 0.011037] ACPI: Reserving SLIT table memory at [mem 0x6e000000-0x6e00002f]
--
[ 0.011051] ACPI: Reserving WSMT table memory at [mem 0x6e00a000-0x6e00a027]
[ 0.011380] ACPI: PM-Timer IO Port: 0x508
[ 0.011395] ACPI: X2APIC_NMI (uid[0xffffffff] high edge lint[0x1])
[ 0.011398] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[ 0.011416] IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
[ 0.011420] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.011422] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
--
[ 1.094417] ACPI: Core revision 20251212
[ 1.097209] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 76450417870 ns
[ 1.097265] APIC: Switch to symmetric I/O mode setup
[ 1.097414] x2apic: IRQ remapping doesn't support X2APIC mode
[ 1.098182] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 1.102242] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1881273ac8e, max_idle_ns: 440795257284 ns
[ 1.102250] Calibrating delay loop (skipped), value calculated using timer frequency.. 3400.00 BogoMIPS (lpj=1700000)
--
[ 2.305494] ACPI: Interpreter enabled
[ 2.305532] ACPI: PM: (supports S0 S4 S5)
[ 2.305535] ACPI: Using IOAPIC for interrupt routing
[ 2.322926] HEST: Table parsing has been initialized.
[ 2.323075] GHES: APEI firmware first mode is enabled by APEI bit and WHEA _OSC.
I will not hunt this deeper now. I am glad I managed it to boot back and have it working.. just that the solution is very uncommon - flip a bios setting, which is not even explained or behaving like what the OS sees during the boot.
 

RolloZ170

Well-Known Member
Apr 24, 2016
10,703
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germany
Can BIOS T01 for MS73-HB1 support the Xeon 9462 (QYGH)??
no. T01 ist test BIOS for Emerald Rapids, came after F21 BIOS(SPR only)
do not waste your time.

try BIOS F02
but we have no luck with other motherboards,
we expected HBM A work with BIOS before this Note, but it did not.
Code:
MS73-HB1 BIOS F16 RelNotes.PDF
F03
1. [Feature] Update RC 86D.16 (EagleStream BKC 2022 WW35).
2. [Feature] SPR D0-Stepping \ MCC - m_87_806f3_8d000510 ; SPR E Stepping:
m_87_806f7_ab000060; SPR HBM B-Steppping: m_10_806f8_ac000060; SPR Production D0
Step: m_87_806f3_0d0004b1 ; SPR Production E Step: m_87_806f7_2b000041 ;
3. [Feature] Update VROC driver to v8.0.0.1336.
4. [Feature] SPR HBM A stepping is no longer supported from this BIOS version.
---------------------------------------------------------------------------------------------------------------
 
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MagnaZee

New Member
Aug 23, 2026
2
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I just bought a gigabyte MS03-CE0 and a QYFS - 8480+ ES. Does anyone here have the R12 BIOS that is compatible with the QYFS? Thanks!
 

MagnaZee

New Member
Aug 23, 2026
2
0
1
The seller of the QYFS indicated that this version works for the board and the chip. I am having another issue where the ram I have doesn’t work.

It’s the Samsung "Old Dram Vendor Detected" issue for the M321R8GA0BB0-CQK model. Are there any fixes for that?
 

RolloZ170

Well-Known Member
Apr 24, 2016
10,703
3,430
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germany
@RolloZ170 - that is a safe / modded bios? Josef told me to be careful with my MS03-CE0 and do not flash a stock one.
original stock BIOS works with SPR-SP D0 up to R12.
if you run Emerald Rapids A0 ES just wait 7 minutes to POST or ask for mod. BIOS (7min don't work for dual CPU boards)