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svmlegacy/00.Intel Celeron G3900 Corefreq 1.86.2 Develop 2021-06-12

Last active June 12, 2021 23:15
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Intel Celeron G3900 Corefreq 1.86.2 Develop 2021-06-12
Raw
00.Intel Celeron G3900 Corefreq 1.86.2 Develop 2021-06-12
Intel Celeron G3900
CM8066201928610 SR2HV X746B941-00711
Skylake-S 2c2t 2.8 GHz GT1
Asus G11CD-K
BIOS 0807 (2018-03-16)
LGA1151
Intel H110 (Rev D1)
ME 11.6.0.1136
(Memory Controller Operating at PC4-17000 (2133 MHz) JEDEC spec, Limitation of Celeron G3900)
Corsair CMK8GX4M1A2400C16 ver 5.30
8 GB PC4-19200 1Rx8
2400 MHz 16-16-16-39 1.20 V
Hynix 8Gbit AFR
Patriot PSP44G266681H1
4 GB PC4-21300 1Rx8
2666 MHz 19-19-19-43
Spektek Unknown Rev
Fedora 34 x86-64
Raw
01.CoreFreq Version
$ ./corefreq-cli -v
1.86.2
Raw
02.CoreFreq System Information
$ ./corefreq-cli -s
Processor [Intel(R) Celeron(R) CPU G3900 @ 2.80GHz]
|- Architecture [Skylake/S]
|- Vendor ID [GenuineIntel]
|- Microcode [0x000000ea]
|- Signature [ 06_5E]
|- Stepping [ 3]
|- Online CPU [ 2/ 2]
|- Base Clock [100.283]
|- Frequency (MHz) Ratio
Min 802.26 < 8 >
Max 2807.91 < 28 >
|- Factory [100.000]
2800 [ 28 ]
|- Performance
|- P-State
TGT 802.26 < 8 >
|- HWP
Min 802.26 < 8 >
Max 2807.91 < 28 >
TGT AUTO < 0 >
|- Turbo Boost [ UNLOCK]
1C 2807.91 < 28 >
2C 2807.91 < 28 >
3C 2807.91 < 28 >
4C 2807.91 < 28 >
|- Uncore [ LOCK]
Min 802.26 [ 8 ]
Max 2807.91 [ 28 ]
|- TDP Level [ 0:3 ]
|- Programmable [ UNLOCK]
|- Configuration [ LOCK]
|- Turbo Activation [ UNLOCK]
Nominal 2807.91 [ 28 ]
Turbo AUTO < 0 >
Instruction Set Extensions
|- 3DNow!/Ext [N/N] ADX [N] AES [Y] AVX/AVX2 [N/N]
|- AVX512-F [N] AVX512-DQ [N] AVX512-IFMA [N] AVX512-PF [N]
|- AVX512-ER [N] AVX512-CD [N] AVX512-BW [N] AVX512-VL [N]
|- AVX512-VBMI [N] AVX512-VBMI2 [N] AVX512-VNMI [N] AVX512-ALG [N]
|- AVX512-VPOP [N] AVX512-VNNIW [N] AVX512-FMAPS [N] AVX512-VP2I [N]
|- AVX512-BF16 [N] BMI1/BMI2 [N/N] CLWB [N] CLFLUSH/O [Y/Y]
|- CLAC-STAC [Y] CMOV [Y] CMPXCHG8B [Y] CMPXCHG16B [Y]
|- F16C [N] FPU [Y] FXSR [Y] LAHF-SAHF [Y]
|- MMX/Ext [Y/N] MON/MWAITX [Y/N] MOVBE [Y] PCLMULQDQ [Y]
|- POPCNT [Y] RDRAND [Y] RDSEED [Y] RDTSCP [Y]
|- SEP [Y] SHA [N] SSE [Y] SSE2 [Y]
|- SSE3 [Y] SSSE3 [Y] SSE4.1/4A [Y/N] SSE4.2 [Y]
|- SERIALIZE [N] SYSCALL [Y] SGX [Y] RDPID [N]
Features
|- 1 GB Pages Support 1GB-PAGES [Capable]
|- Advanced Configuration & Power Interface ACPI [Capable]
|- Advanced Programmable Interrupt Controller APIC [Capable]
|- Core Multi-Processing CMP Legacy [Missing]
|- L1 Data Cache Context ID CNXT-ID [Missing]
|- Direct Cache Access DCA [Missing]
|- Debugging Extension DE [Capable]
|- Debug Store & Precise Event Based Sampling DS, PEBS [Capable]
|- CPL Qualified Debug Store DS-CPL [Capable]
|- 64-Bit Debug Store DTES64 [Capable]
|- Fast-String Operation Fast-Strings [Capable]
|- Fused Multiply Add FMA | FMA4 [Missing]
|- Hardware Lock Elision HLE [Missing]
|- Instruction Based Sampling IBS [Missing]
|- Long Mode 64 bits IA64 | LM [Capable]
|- LightWeight Profiling LWP [Missing]
|- Machine-Check Architecture MCA [Capable]
|- Memory Protection Extensions MPX [Missing]
|- Model Specific Registers MSR [Capable]
|- Memory Type Range Registers MTRR [Capable]
|- OS-Enabled Ext. State Management OSXSAVE [Capable]
|- Physical Address Extension PAE [Capable]
|- Page Attribute Table PAT [Capable]
|- Pending Break Enable PBE [Capable]
|- Process Context Identifiers PCID [Capable]
|- Perfmon and Debug Capability PDCM [Capable]
|- Page Global Enable PGE [Capable]
|- Page Size Extension PSE [Capable]
|- 36-bit Page Size Extension PSE36 [Capable]
|- Processor Serial Number PSN [Missing]
|- Resource Director Technology/PQE RDT-A [Missing]
|- Resource Director Technology/PQM RDT-M [Missing]
|- Restricted Transactional Memory RTM [Missing]
|- Safer Mode Extensions SMX [Missing]
|- Self-Snoop SS [Capable]
|- Supervisor-Mode Access Prevention SMAP [Capable]
|- Supervisor-Mode Execution Prevention SMEP [Missing]
|- Time Stamp Counter TSC [Invariant]
|- Time Stamp Counter Deadline TSC-DEADLINE [Capable]
|- TSX Force Abort MSR Register TSX-ABORT [Capable]
|- TSX Suspend Load Address Tracking TSX-LDTRK [Missing]
|- User-Mode Instruction Prevention UMIP [Missing]
|- Virtual Mode Extension VME [Capable]
|- Virtual Machine Extensions VMX [Capable]
|- Extended xAPIC Support x2APIC [ x2APIC]
|- Execution Disable Bit Support XD-Bit [Capable]
|- XSAVE/XSTOR States XSAVE [Capable]
|- xTPR Update Control xTPR [Capable]
Mitigation mechanisms
|- Indirect Branch Restricted Speculation IBRS [Capable]
|- Indirect Branch Prediction Barrier IBPB [Capable]
|- Single Thread Indirect Branch Predictor STIBP [Capable]
|- Speculative Store Bypass Disable SSBD [Capable]
|- Writeback & invalidate the L1 data cache L1D-FLUSH [Capable]
|- Hypervisor - No flush L1D on VM entry L1DFL_VMENTRY_NO [Missing]
|- Architectural - Buffer Overwriting MD-CLEAR [Capable]
|- Architectural - Rogue Data Cache Load RDCL_NO [Missing]
|- Architectural - Enhanced IBRS IBRS_ALL [Missing]
|- Architectural - Return Stack Buffer Alternate RSBA [Missing]
|- Architectural - Speculative Store Bypass SSB_NO [Missing]
|- Architectural - Microarchitectural Data Sampling MDS_NO [Missing]
|- Architectural - TSX Asynchronous Abort TAA_NO [Missing]
|- Architectural - Page Size Change MCE PSCHANGE_MC_NO [Missing]
|- Architectural - Split Locked Access Exception SPLA [Missing]
Technologies
|- Data Cache Unit
|- L1 Prefetcher L1 HW < ON>
|- L1 IP Prefetcher L1 HW IP < ON>
|- L2 Prefetcher L2 HW < ON>
|- L2 Line Prefetcher L2 HW CL < ON>
|- System Management Mode SMM-Dual [OFF]
|- Hyper-Threading HTT [OFF]
|- SpeedStep EIST < ON>
|- Dynamic Acceleration IDA [OFF]
|- Turbo Boost TURBO <OFF>
|- Energy Efficiency Optimization EEO < ON>
|- Race To Halt Optimization R2H < ON>
|- Watchdog Timer TCO < ON>
|- Virtualization VMX [ ON]
|- I/O MMU VT-d [ ON]
|- Version [ 1.0]
|- Hypervisor [OFF]
|- Vendor ID [ N/A]
Performance Monitoring
|- Version PM [ 4]
|- Counters: General Fixed
| 8 x 48 bits 3 x 48 bits
|- Enhanced Halt State C1E <OFF>
|- C1 Auto Demotion C1A < ON>
|- C3 Auto Demotion C3A < ON>
|- C1 UnDemotion C1U < ON>
|- C3 UnDemotion C3U < ON>
|- C6 Core Demotion CC6 <OFF>
|- C6 Module Demotion MC6 <OFF>
|- Legacy Frequency ID control FID [OFF]
|- Legacy Voltage ID control VID [OFF]
|- P-State Hardware Coordination Feedback MPERF/APERF [ ON]
|- Hardware-Controlled Performance States HWP < ON>
|- Capabilities (MHz) Ratio
Lowest 100.28 [ 1 ]
Efficient 802.26 [ 8 ]
Guaranteed 2807.91 [ 28 ]
Highest 2807.91 [ 28 ]
|- Hardware Duty Cycling HDC < ON>
|- Package C-States
|- Configuration Control CONFIG [ LOCK]
|- Lowest C-State LIMIT < C2>
|- I/O MWAIT Redirection IOMWAIT <Disable>
|- Max C-State Inclusion RANGE < C6>
|- Core C-States
|- C-States Base Address BAR [ 0x1814]
|- MONITOR/MWAIT
|- State index: #0 #1 #2 #3 #4 #5 #6 #7
|- Sub C-State: 0 2 1 2 4 1 0 0
|- Core Cycles [Capable]
|- Instructions Retired [Capable]
|- Reference Cycles [Capable]
|- Last Level Cache References [Capable]
|- Last Level Cache Misses [Capable]
|- Branch Instructions Retired [Capable]
|- Branch Mispredicts Retired [Capable]
Power, Current & Thermal
|- Clock Modulation ODCM <Disable>
|- DutyCycle [ 0.00%]
|- Power Management PWR MGMT [ LOCK]
|- Energy Policy Bias Hint < 6>
|- Energy Policy HWP EPP < 128>
|- Junction Temperature TjMax [ 0:100C]
|- Digital Thermal Sensor DTS [Capable]
|- Power Limit Notification PLN [Capable]
|- Package Thermal Management PTM [Capable]
|- Thermal Monitor 1 TM1 [ Enable]
|- Thermal Monitor 2 TM2 [Capable]
|- Thermal Design Power TDP [ 54 W]
|- Minimum Power Min [Missing]
|- Maximum Power Max [Missing]
|- Thermal Design Power Package < Enable>
|- Power Limit ( 8 sec) PL1 < 54 W>
|- Power Limit ( 0 sec) PL2 < 200 W>
|- Thermal Design Power Core <Disable>
|- Power Limit PL1 [Missing]
|- Thermal Design Power Uncore <Disable>
|- Power Limit PL1 [Missing]
|- Thermal Design Power DRAM <Disable>
|- Power Limit PL1 [Missing]
|- Thermal Design Power Platform <Disable>
|- Power Limit PL1 [Missing]
|- Power Limit PL2 [Missing]
|- Electrical Design Current EDC [Missing]
|- Thermal Design Current TDC [Missing]
|- Units
|- Power watt [ 0.125000000]
|- Energy joule [ 0.000061035]
|- Window second [ 0.000976562]
Raw
03.CoreFreq Memory Controller
$ ./corefreq-cli -M
Sunrise Point [190F]
Controller #0 Dual Channel
Bus Rate 8000 MT/s Bus Speed 8022 MT/s DRAM Speed 2133 MHz
Cha CL RCD RP RAS RRD RFC WR RTPr WTPr FAW B2B CWL CMD REFI
#0 16 16 16 35 23 374 0 8 34 24 0 13 2T 8316
#1 16 16 16 35 23 374 0 8 34 24 0 13 2T 8316
sgRR dgRR drRR ddRR sgRW dgRW drRW ddRW sgWR dgWR drWR ddWR
#0 6 4 6 7 10 10 11 12 27 22 5 5
#1 6 4 6 7 10 10 11 12 27 22 5 5
sgWW dgWW drWW ddWW CKE ECC
#0 6 4 7 7 4 0
#1 6 4 7 7 4 0
DIMM Geometry for channel #0
Slot Bank Rank Rows Columns Memory Size (MB)
#0 16 1 65536 1024 8192
DIMM Geometry for channel #1
Slot Bank Rank Rows Columns Memory Size (MB)
#0 16 1 65536 1024 4096
Raw
04.CoreFreq Topology
$ ./corefreq-cli -m
CPU Pkg Apic Core/Thread Caches (w)rite-Back (i)nclusive
# ID ID ID ID L1-Inst Way L1-Data Way L2 Way L3 Way
000:BSP 0 0 0 32768 8 32768 8 262144 4 2097152 8 i
001: 0 2 1 0 32768 8 32768 8 262144 4 2097152 8 i
Raw
05.CoreFreq SMBIOS
$ ./corefreq-cli -B
[ 0] American Megatrends Inc.
[ 1] 0807
[ 2] 03/16/2018
[ 3] ASUSTeK COMPUTER INC.
[ 4] G11CD-K
[ 5] 0807
[ 6] H---C---0---
[ 7]
[ 8] Gaming
[ 9] ASUSTeK COMPUTER INC.
[10] G11CD-K
[11] Rev 1.xx
[12] 1---0---3---4--
Raw
06.CoreFreq Kernel
$ ./corefreq-cli -k
Linux:
|- Release [5.12.9-300.fc34.x86_64]
|- Version [#1 SMP Thu Jun 3 13:51:40 UTC 2021]
|- Machine [x86_64]
Memory:
|- Total RAM 12131952 KB
|- Shared RAM 244496 KB
|- Free RAM 3830792 KB
|- Buffer RAM 4400 KB
|- Total High 0 KB
|- Free High 0 KB
CPU-Freq driver [ intel_pstate]
Governor [ Missing]
CPU-Idle driver [ intel_idle]
|- Idle Limit [ C8]
|- State POLL C1 C1E C3 C6 C7s C8
|- CPUIDLE MWAIT 0 MWAIT 0 MWAIT 0 MWAIT 0 MWAIT 0 MWAIT 0
|- Power -1 0 0 0 0 0 0
|- Latency 0 2 10 70 85 124 200
|- Residency 0 2 20 100 200 800 800
Raw
07.CoreFreq System Registers
$ ./corefreq-cli -R
CPU FLAG TF IF IOPL NT RF VM AC VIF VIP ID
#0 0 0 0 0 0 0 0 0 0 0
#1 0 0 0 0 0 0 0 0 0 0
CR0: PE MP EM TS ET NE WP AM NW CD PG CR3: PWT PCD
#0 1 1 0 0 1 1 1 1 0 0 1 0 0
#1 1 1 0 0 1 1 1 1 0 0 1 0 0
CR4: VME PVI TSD DE PSE PAE MCE PGE PCE FX XMM UMIP 5LP VMX SMX FS
#0 0 0 0 0 1 1 1 1 0 1 1 0 0 0 0 1
#1 0 0 0 0 0 1 1 1 0 1 1 0 0 0 0 1
CR4:PCID SAV KL SME SMA PKE CET PKS CR8: TPL
#0 1 1 0 0 1 0 0 0 1
#1 1 1 0 0 1 0 0 0 1
EFCR LCK VMX^SGX [SENTER] [ SGX ] LMC EFER SCE LME LMA NXE SVM
#0 1 0 1 0 0 0 0 0 1 1 1 1 0
#1 1 0 1 0 0 0 0 0 1 1 1 1 0
Raw
08.CoreFreq CPUID
$ ./corefreq-cli -u
CPU #0 function EAX EBX ECX EDX
|- 00000000:00000000 00000016 756e6547 6c65746e 49656e69
|- Largest Standard Function=00000016
|- 80000000:00000000 80000008 00000000 00000000 00000000
|- Largest Extended Function=80000008
|- 00000001:00000000 000506e3 00100800 4ffaebbf bfebfbff
|- 00000002:00000000 76036301 00f0b6ff 00000000 00c30000
|- 00000003:00000000 00000000 00000000 00000000 00000000
|- 00000004:00000000 1c004121 01c0003f 0000003f 00000000
|- 00000004:00000001 1c004122 01c0003f 0000003f 00000000
|- 00000004:00000002 1c004143 00c0003f 000003ff 00000000
|- 00000004:00000003 1c03c163 01c0003f 00000fff 00000006
|- 00000005:00000000 00000040 00000040 00000003 00142120
|- 00000006:00000000 000027f5 00000002 00000009 00000000
|- 00000007:00000000 00000000 02942607 00000000 9c002e00
|- 00000007:00000001 00000000 00000000 00000000 00000000
|- 00000009:00000000 00000000 00000000 00000000 00000000
|- 0000000a:00000000 07300804 00000000 00000000 00000603
|- 0000000b:00000000 00000001 00000001 00000100 00000000
|- 0000000d:00000000 00000003 00000240 00000240 00000000
|- 0000000d:00000001 0000000f 00000240 00000100 00000000
|- 0000000d:00000002 00000000 00000000 00000000 00000000
|- 0000000d:00000003 00000000 00000000 00000000 00000000
|- 0000000d:00000004 00000000 00000000 00000000 00000000
|- 0000000d:0000003e 00000000 00000000 00000000 00000000
|- 0000000f:00000000 00000000 00000000 00000000 00000000
|- 0000000f:00000001 00000000 00000000 00000000 00000000
|- 00000010:00000000 00000000 00000000 00000000 00000000
|- 00000010:00000001 00000000 00000000 00000000 00000000
|- 00000010:00000002 00000000 00000000 00000000 00000000
|- 00000010:00000003 00000000 00000000 00000000 00000000
|- 00000012:00000000 00000000 00000000 00000000 00000000
|- 00000012:00000001 00000000 00000000 00000000 00000000
|- 00000012:00000002 00000000 00000000 00000000 00000000
|- 00000014:00000000 00000001 0000000f 00000007 00000000
|- 00000014:00000001 02490002 003f3fff 00000000 00000000
|- 00000015:00000000 00000002 000000ea 00000000 00000000
|- 00000016:00000000 00000af0 00000af0 00000064 00000000
|- 00000017:00000000 00000af0 00000af0 00000064 00000000
|- 00000017:00000001 00000af0 00000af0 00000064 00000000
|- 00000017:00000002 00000af0 00000af0 00000064 00000000
|- 00000017:00000003 00000af0 00000af0 00000064 00000000
|- 00000018:00000000 00000af0 00000af0 00000064 00000000
|- 00000018:00000001 00000af0 00000af0 00000064 00000000
|- 00000019:00000000 00000af0 00000af0 00000064 00000000
|- 0000001a:00000000 00000af0 00000af0 00000064 00000000
|- 0000001b:00000000 00000af0 00000af0 00000064 00000000
|- 0000001f:00000000 00000af0 00000af0 00000064 00000000
|- 80000001:00000000 00000000 00000000 00000121 2c100800
|- 80000002:00000000 65746e49 2952286c 6c654320 6e6f7265
|- 80000003:00000000 20295228 20555043 30393347 20402030
|- 80000004:00000000 30382e32 007a4847 00000000 00000000
|- 80000005:00000000 00000000 00000000 00000000 00000000
|- 80000006:00000000 00000000 00000000 01006040 00000000
|- 80000007:00000000 00000000 00000000 00000000 00000100
|- 80000008:00000000 00003027 00000000 00000000 00000000
|- 8000000a:00000000 00000af0 00000af0 00000064 00000000
|- 80000019:00000000 00000af0 00000af0 00000064 00000000
|- 8000001a:00000000 00000af0 00000af0 00000064 00000000
|- 8000001b:00000000 00000af0 00000af0 00000064 00000000
|- 8000001c:00000000 00000af0 00000af0 00000064 00000000
|- 8000001d:00000000 00000af0 00000af0 00000064 00000000
|- 8000001d:00000001 00000af0 00000af0 00000064 00000000
|- 8000001d:00000002 00000af0 00000af0 00000064 00000000
|- 8000001d:00000003 00000af0 00000af0 00000064 00000000
|- 8000001e:00000000 00000af0 00000af0 00000064 00000000
|- 40000000:00000000 00000af0 00000af0 00000064 00000000
|- 40000001:00000000 00000af0 00000af0 00000064 00000000
|- 40000002:00000000 00000af0 00000af0 00000064 00000000
|- 40000003:00000000 00000af0 00000af0 00000064 00000000
|- 40000004:00000000 00000af0 00000af0 00000064 00000000
|- 40000005:00000000 00000af0 00000af0 00000064 00000000
|- 40000006:00000000 00000af0 00000af0 00000064 00000000
CPU #1 function EAX EBX ECX EDX
|- 00000000:00000000 00000016 756e6547 6c65746e 49656e69
|- Largest Standard Function=00000016
|- 80000000:00000000 80000008 00000000 00000000 00000000
|- Largest Extended Function=80000008
|- 00000001:00000000 000506e3 02100800 4ffaebbf bfebfbff
|- 00000002:00000000 76036301 00f0b6ff 00000000 00c30000
|- 00000003:00000000 00000000 00000000 00000000 00000000
|- 00000004:00000000 1c004121 01c0003f 0000003f 00000000
|- 00000004:00000001 1c004122 01c0003f 0000003f 00000000
|- 00000004:00000002 1c004143 00c0003f 000003ff 00000000
|- 00000004:00000003 1c03c163 01c0003f 00000fff 00000006
|- 00000005:00000000 00000040 00000040 00000003 00142120
|- 00000006:00000000 000027f5 00000002 00000009 00000000
|- 00000007:00000000 00000000 02942607 00000000 9c002e00
|- 00000007:00000001 00000000 00000000 00000000 00000000
|- 00000009:00000000 00000000 00000000 00000000 00000000
|- 0000000a:00000000 07300804 00000000 00000000 00000603
|- 0000000b:00000000 00000001 00000001 00000100 00000002
|- 0000000d:00000000 00000003 00000240 00000240 00000000
|- 0000000d:00000001 0000000f 00000240 00000100 00000000
|- 0000000d:00000002 00000000 00000000 00000000 00000000
|- 0000000d:00000003 00000000 00000000 00000000 00000000
|- 0000000d:00000004 00000000 00000000 00000000 00000000
|- 0000000d:0000003e 00000000 00000000 00000000 00000000
|- 0000000f:00000000 00000000 00000000 00000000 00000000
|- 0000000f:00000001 00000000 00000000 00000000 00000000
|- 00000010:00000000 00000000 00000000 00000000 00000000
|- 00000010:00000001 00000000 00000000 00000000 00000000
|- 00000010:00000002 00000000 00000000 00000000 00000000
|- 00000010:00000003 00000000 00000000 00000000 00000000
|- 00000012:00000000 00000000 00000000 00000000 00000000
|- 00000012:00000001 00000000 00000000 00000000 00000000
|- 00000012:00000002 00000000 00000000 00000000 00000000
|- 00000014:00000000 00000001 0000000f 00000007 00000000
|- 00000014:00000001 02490002 003f3fff 00000000 00000000
|- 00000015:00000000 00000002 000000ea 00000000 00000000
|- 00000016:00000000 00000af0 00000af0 00000064 00000000
|- 00000017:00000000 00000af0 00000af0 00000064 00000000
|- 00000017:00000001 00000af0 00000af0 00000064 00000000
|- 00000017:00000002 00000af0 00000af0 00000064 00000000
|- 00000017:00000003 00000af0 00000af0 00000064 00000000
|- 00000018:00000000 00000af0 00000af0 00000064 00000000
|- 00000018:00000001 00000af0 00000af0 00000064 00000000
|- 00000019:00000000 00000af0 00000af0 00000064 00000000
|- 0000001a:00000000 00000af0 00000af0 00000064 00000000
|- 0000001b:00000000 00000af0 00000af0 00000064 00000000
|- 0000001f:00000000 00000af0 00000af0 00000064 00000000
|- 80000001:00000000 00000000 00000000 00000121 2c100800
|- 80000002:00000000 65746e49 2952286c 6c654320 6e6f7265
|- 80000003:00000000 20295228 20555043 30393347 20402030
|- 80000004:00000000 30382e32 007a4847 00000000 00000000
|- 80000005:00000000 00000000 00000000 00000000 00000000
|- 80000006:00000000 00000000 00000000 01006040 00000000
|- 80000007:00000000 00000000 00000000 00000000 00000100
|- 80000008:00000000 00003027 00000000 00000000 00000000
|- 8000000a:00000000 00000af0 00000af0 00000064 00000000
|- 80000019:00000000 00000af0 00000af0 00000064 00000000
|- 8000001a:00000000 00000af0 00000af0 00000064 00000000
|- 8000001b:00000000 00000af0 00000af0 00000064 00000000
|- 8000001c:00000000 00000af0 00000af0 00000064 00000000
|- 8000001d:00000000 00000af0 00000af0 00000064 00000000
|- 8000001d:00000001 00000af0 00000af0 00000064 00000000
|- 8000001d:00000002 00000af0 00000af0 00000064 00000000
|- 8000001d:00000003 00000af0 00000af0 00000064 00000000
|- 8000001e:00000000 00000af0 00000af0 00000064 00000000
|- 40000000:00000000 00000af0 00000af0 00000064 00000000
|- 40000001:00000000 00000af0 00000af0 00000064 00000000
|- 40000002:00000000 00000af0 00000af0 00000064 00000000
|- 40000003:00000000 00000af0 00000af0 00000064 00000000
|- 40000004:00000000 00000af0 00000af0 00000064 00000000
|- 40000005:00000000 00000af0 00000af0 00000064 00000000
|- 40000006:00000000 00000af0 00000af0 00000064 00000000
@cyring
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cyring commented Jun 12, 2021

I have to review the memory topology because 2 DIMMs of 8 and 4 GB don't necessarily mean "dual channels". Those may run in single.

My understanding is that this configuration is a "Flex-Mode" memory access that is both single channel and dual channel at the same time
https://www.intel.ca/content/www/ca/en/support/articles/000005657/boards-and-kits.html

I think so. I remember reading that into some registers specs but never have materials to test with. It will be nice to add FLEX ...

2 DIMMs have different SPD but only one reported twice.
Can you tell if the BIOS decided to align the IMC on the same timings for all sticks; or it's a bug: two different timings should have reported ?

@cyring
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cyring commented Jun 12, 2021

EDIT: This answer is provided in your link:

When using different speed DIMMs, the slowest memory timing is used.

Flex can be single or dual: this sounds like a fun time to decode this...

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