Question B650 Steel Legend - BIOS RAM Timing settings ignored?

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incansvl

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Oct 31, 2023
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Code: 
Motherboard: B650 Steel Legend WiFi (Bios 3.16 upgraded to 3.20)
CPU: AMD Ryzen 7 7700
RAM: Crucial Vengeance 32GB (2x16GB) DDR5 6000MT/s CL30

This platform (AM5+DDR5) by default sets the RAM to 2400MHz (4800MT/s) with timings of 40:40:40:77 (CL40)

The RAM I have supports 6000MT/s at 30:36:36:76 (CL:30)

The Problem
I can set the faster RAM speed and timing either by loading the EXPO settings from the RAM, or manually. The settings show correctly in the BIOS, and persist across reboots. The system POSTs (after the normal RAM tuning delay) and runs normally.

However HWiNFO64 shows that the RAM is still running at the default clock rate and timings?

The developers of HWiNFO have confirmed that it reads the RAM timings directly from the controller on the motherboard, so the default timings are the ones that are in effect, even though the BIOS says otherwise.

I will log this as a bug with ASRock, but it's such a strange problem i'm curious if anyone else seen the same issue?
 
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RAM: Crucial Vengeance 32GB (2x16GB) DDR5 6000MT/s CL30
I think you meant Corsair Vengeance. Crucial never made a vengeance segment of ram kits. That being said, please pass on a link to the ram kit you're working with.

However HWiNFO64 shows that the RAM is still running at the default clock rate and timings?
What does CPU-Z say?

You've stated updating the BIOS for your motherboard from 3.16 to 3.20, did you clear the CMOS after you've verified the BIOS was successfully flashed to the latest? Did you see the same issue crop up when you were on BIOS version 3.16? ASRock were reportedly having issue with their BIOS and another BIOS version was released toward the end of last month(or was it the start of this month, April?).
 
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Yes, I did mean Corsair Vengeance, memory problem (mine...)

The RAM kit I am using is the CMK32GX5M2B6000Z30

CPU-Z says the same thing as HWiNFO, it reports default speed + timings. (Note, I would happily provide screenshots but that's not so easy on this forum)

The problem was occurring with the 3.16 BIOS. In fact I upgraded to 3.20 specifically to see if it would fix this problem.

No, I didn't do a manual clear CMOS after the BIOS update. It was my understanding that updating the BIOS would do a clear CMOS automatically. That's what the ASRock guidance for BIOS updates says, and it certainly seemed that way as it lost all my custom fan curves after the update.

If that's a potential issue I can do a manual CMOS clear. Losing all the settings again is a pain though.
 
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Update-

I cleared the CMOS and re-added all the settings, including loading the EXPO RAM speed and timing.

As before, everything looks hunky dory in the BIOS, but when the OS boots the RAM is still running at default 4800 MT/s speed and timing.

Extract from CPU-Z report below-

Code: 
CPU-Z TXT Report
-------------------------------------------------------------------------

CPU-Z version            2.15.0.x64

Processors Information
-------------------------------------------------------------------------

Socket 1            ID = 0
    Number of cores        8 (max 8)
    Number of threads    16 (max 16)
    Secondary bus #        0
    Number of CCDs        1
    Manufacturer        AuthenticAMD
    Name            AMD Ryzen 7 7700
    Codename        Raphael
    Specification        AMD Ryzen 7 7700 8-Core Processor              
    Package         Socket AM5 (LGA1718)
    CPUID            F.1.2
    Extended CPUID        19.61
    Core Stepping        RPL-B2
    Technology        5 nm
    TDP Limit        65.0 Watts
    Tjmax            95.0 �C


Chipset
-------------------------------------------------------------------------

Northbridge            AMD Ryzen SOC rev. 00
Southbridge            AMD B650 rev. 51
Bus Specification        PCI-Express 5.0 (32.0 GT/s)
Graphic Interface        PCI-Express 4.0
PCI-E Link Width        x16 (max 16x)
PCI-E Link Speed        16.0 GT/s (max 16.0 GT/s)
Memory Type            DDR5
Memory Size            32 GBytes
Channels            2 x 32-bit
Memory Frequency        2393.2 MHz (1:24)
Memory Max Frequency        2800.0 MHz
CAS# latency (CL)        40.0
RAS# to CAS# delay (tRCD)    40
RAS# Precharge (tRP)        40
Cycle Time (tRAS)        77
Bank Cycle Time (tRC)        117
Uncore Frequency        2393.8 MHz


Memory SPD
-------------------------------------------------------------------------

DIMM #                1
    SMBus address        0x51
    Memory type        DDR5
    Module format        UDIMM
    Module Manufacturer(ID)    Corsair (7F7F9E00000000000000000000000000)
    SDRAM Manufacturer (ID)    SK Hynix (AD000000000000000000000000000000)
    Size            16384 MBytes
    PMIC #0            Enabled
    PMIC #0 Manufacturer    Richtek Power
    PMIC #1            Disabled
    PMIC #2            Disabled
    Clock Driver (CKD)    Disabled
    Max bandwidth        DDR5-6000 (3000 MHz)
    Max JEDEC        DDR5-4800 (2400 MHz)
    Channels        2
    Part number        CMK32GX5M2B6000Z30
    Manufacturing date    Week 45/Year 24
    Nominal Voltage        1.10 Volts
    Temperature Limit    55.0 degC (high limit), 85.0 degC (critical limit)
    EPP            no
    XMP            yes, rev. 3.0
    AMP            no
    EXPO            yes, rev. 1.0
JEDEC timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1        22.0-23-23-43-65 @ 1333 MHz
    JEDEC #2        28.0-28-28-54-82 @ 1666 MHz
    JEDEC #3        30.0-30-30-58-88 @ 1800 MHz
    JEDEC #4        32.0-33-33-62-95 @ 1933 MHz
    JEDEC #5        36.0-37-37-70-106 @ 2166 MHz
    JEDEC #6        40.0-40-40-77-117 @ 2400 MHz
    JEDEC #7        42.0-40-40-77-117 @ 2400 MHz
XMP profile            XMP-6000
    Specification        Profile 1
    VDD Voltage        1.400 Volts
    VDDQ Voltage        1.400 Volts
    VPP Voltage        1.800 Volts
    Memory Controller Volt.    1.200 Volts
    Min Cycle time        0.333 ns (3000 MHz)
    Max CL            30.0
    Min tRP            11.99 ns
    Min tRCD        11.99 ns
    Min tRAS        25.31 ns
    Min tRC            37.30 ns
XMP timings table        CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
    XMP #1            22.0-27-27-56-83-n.a @ 2202 MHz (1.400 Volts)
    XMP #2            26.0-32-32-66-98-n.a @ 2602 MHz (1.400 Volts)
    XMP #3            28.0-34-34-71-105-n.a @ 2802 MHz (1.400 Volts)
    XMP #4            30.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #5            32.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #6            36.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #7            40.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #8            42.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #9            46.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #10            48.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #11            50.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #12            54.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
EXPO profile
    VDD Voltage        1.400 Volts
    VDDQ Voltage        1.400 Volts
    VPP Voltage        1.800 Volts
    Min Cycle time        0.333 ns (3000 MHz)
    Max CL            30.0
    Min tRP            11.99 ns
    Min tRCD        11.99 ns
    Min tRAS        25.31 ns
    Min tRFC        0.29 ns
EXPO timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    EXPO #1            30.0-36-36-76-112 @ 3000 MHz

DIMM #                2
    SMBus address        0x53
    Memory type        DDR5
    Module format        UDIMM
    Module Manufacturer(ID)    Corsair (7F7F9E00000000000000000000000000)
    SDRAM Manufacturer (ID)    SK Hynix (AD000000000000000000000000000000)
    Size            16384 MBytes
    PMIC #0            Enabled
    PMIC #0 Manufacturer    Richtek Power
    PMIC #1            Disabled
    PMIC #2            Disabled
    Clock Driver (CKD)    Disabled
    Max bandwidth        DDR5-6000 (3000 MHz)
    Max JEDEC        DDR5-4800 (2400 MHz)
    Channels        2
    Part number        CMK32GX5M2B6000Z30
    Manufacturing date    Week 45/Year 24
    Nominal Voltage        1.10 Volts
    Temperature Limit    55.0 degC (high limit), 85.0 degC (critical limit)
    EPP            no
    XMP            yes, rev. 3.0
    AMP            no
    EXPO            yes, rev. 1.0
JEDEC timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1        22.0-23-23-43-65 @ 1333 MHz
    JEDEC #2        28.0-28-28-54-82 @ 1666 MHz
    JEDEC #3        30.0-30-30-58-88 @ 1800 MHz
    JEDEC #4        32.0-33-33-62-95 @ 1933 MHz
    JEDEC #5        36.0-37-37-70-106 @ 2166 MHz
    JEDEC #6        40.0-40-40-77-117 @ 2400 MHz
    JEDEC #7        42.0-40-40-77-117 @ 2400 MHz
XMP profile            XMP-6000
    Specification        Profile 1
    VDD Voltage        1.400 Volts
    VDDQ Voltage        1.400 Volts
    VPP Voltage        1.800 Volts
    Memory Controller Volt.    1.200 Volts
    Min Cycle time        0.333 ns (3000 MHz)
    Max CL            30.0
    Min tRP            11.99 ns
    Min tRCD        11.99 ns
    Min tRAS        25.31 ns
    Min tRC            37.30 ns
XMP timings table        CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
    XMP #1            22.0-27-27-56-83-n.a @ 2202 MHz (1.400 Volts)
    XMP #2            26.0-32-32-66-98-n.a @ 2602 MHz (1.400 Volts)
    XMP #3            28.0-34-34-71-105-n.a @ 2802 MHz (1.400 Volts)
    XMP #4            30.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #5            32.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #6            36.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #7            40.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #8            42.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #9            46.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #10            48.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #11            50.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
    XMP #12            54.0-36-36-76-112-n.a @ 3000 MHz (1.400 Volts)
EXPO profile
    VDD Voltage        1.400 Volts
    VDDQ Voltage        1.400 Volts
    VPP Voltage        1.800 Volts
    Min Cycle time        0.333 ns (3000 MHz)
    Max CL            30.0
    Min tRP            11.99 ns
    Min tRCD        11.99 ns
    Min tRAS        25.31 ns
    Min tRFC        0.29 ns
EXPO timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    EXPO #1            30.0-36-36-76-112 @ 3000 MHz

-------------------------------------------------------------------------

SMBIOS Version            3.4

DMI BIOS        
    vendor            American Megatrends International LLC.
    version            3.20
    date            02/21/2025
    ROM size        16384 KB

DMI System Information        
    manufacturer        ASRock
    product            B650 Steel Legend WiFi
    version            Default string
    serial            Default string
    UUID            {96006B9C-417C-0000-0000-000000000000}
    SKU            Default string
    family            Default string

DMI Baseboard        
    vendor            ASRock
    model            B650 Steel Legend WiFi
    revision        Default string
    serial            M80-HC013001492

DMI System Enclosure        
    manufacturer        Default string
    chassis type        Desktop
    chassis serial        Default string

DMI OEM Strings        
    string[0]        Default string

DMI Processor        
    manufacturer        Advanced Micro Devices Inc.
    model            AMD Ryzen 7 7700 8-Core Processor
    clock speed        3800.0 MHz
    FSB speed        100.0 MHz
    multiplier        38.0x
    max clock speed        5350.0 MHz

DMI Physical Memory Array        
    location        Motherboard
    usage            System Memory
    correction        None
    max capacity        128 GB
    max# of devices        4

DMI Memory Device        
    designation        DIMM 0
    format            unknown
    type            unknown
    manufacturer        Unknown
    part number        Unknown
    serial number        Unknown
    manufacturer id        0x0
    product id        0x0

DMI Memory Device        
    designation        DIMM 1
    format            DIMM
    type            DDR5
    total width        64 bits
    data width        64 bits
    size            16 GB
    speed            4800 MHz
    manufacturer        Corsair
    part number        CMK32GX5M2B6000Z30
    serial number        00000000
    voltage            1.100000
    manufacturer id        0x9E02
    product id        0x0

DMI Memory Device        
    designation        DIMM 0
    format            unknown
    type            unknown
    manufacturer        Unknown
    part number        Unknown
    serial number        Unknown
    manufacturer id        0x0
    product id        0x0

DMI Memory Device        
    designation        DIMM 1
    format            DIMM
    type            DDR5
    total width        64 bits
    data width        64 bits
    size            16 GB
    speed            4800 MHz
    manufacturer        Corsair
    part number        CMK32GX5M2B6000Z30
    serial number        00000000
    voltage            1.100000
    manufacturer id        0x9E02
    product id        0x0

DMI Additional Information Device        
    string #        1
    string[0]        AGESA!V9 PI 1.2.0.3a PatchA
 
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