Hi misc@,
I recently installed a new RAM stick in my machine, which is rated
at 3200Mhz. However, dmidecode shows this:
Handle 0x0016, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000F
Error Information Handle: 0x0015
Total Width: 64 bits
Data Width: 64 bits
Size: 16 GiB
Form Factor: DIMM
Set: None
Locator: DIMM 0
Bank Locator: P0 CHANNEL A
Type: DDR4
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 3200 MT/s
Manufacturer: Hynix
Serial Number: 742E4BF4
Asset Tag: Not Specified
Part Number: HMA82GU6DJR8N-XN
Rank: 2
Configured Memory Speed: 1600 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
"Configured Memory Speed" is set to 1600 MT/s, even though I
configured the RAM to 3200Mhz in my BIOS. Is this a bug or is it
expected? This is a single RAM stick on a dual channel motherboard,
maybe that's relevant.
OpenBSD 7.8-current (GENERIC.MP) #231: Sun Feb 1 23:25:53 MST 2026
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17080832000 (16289MB)
avail mem = 16536162304 (15770MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xe6910 (55 entries)
bios0: vendor American Megatrends Inc. version "2.40" date 12/17/2018
bios0: Micro-Star International Co., Ltd. MS-7B84
acpi0 at bios0: ACPI 6.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT SSDT SSDT CRAT CDIT SSDT MCFG
HPET UEFI IVRS SSDT SSDT SSDT SSDT SSDT WSMT
acpi0: wakeup devices GPP0(S4) GPP2(S4) GPP3(S4) GPP4(S4) GPP5(S4)
GPP6(S4) GP17(S4) XHC0(S4) XHC1(S4) GP18(S4) GPP1(S4) PTXH(S4)
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD Ryzen 3 2200G with Radeon Vega Graphics, 3500.00 MHz,
17-11-00, patch 0810100b
cpu0: cpuid 1
edx=178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT>
ecx=76d8320b<SSE3,PCLMUL,MWAIT,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND>
cpu0: cpuid 6 eax=4<ARAT> ecx=1<EFFFREQ>
cpu0: cpuid 7.0
ebx=209c01a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA>
cpu0: cpuid d.1 eax=f<XSAVEOPT,XSAVEC,XGETBV1,XSAVES>
cpu0: cpuid 80000001 edx=2fd3fbff<NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG>
ecx=35c233ff<LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,SKINIT,TCE,TOPEXT,CPCTR,DBKP,PCTRL3,MWAITX>
cpu0: cpuid 80000007 edx=6599<HWPSTATE,ITSC>
cpu0: cpuid 80000008 ebx=1007<IBPB>
cpu0: cpuid 8000001F eax=f<SME,SEV,PFLUSH_MSR,SEVES> ecx=f
cpu0: 32KB 64b/line 8-way D-cache, 64KB 64b/line 4-way I-cache, 512KB
64b/line 8-way L2 cache, 4MB 64b/line 16-way L3 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 25MHz
cpu0: mwait min=64, max=64, C-substates=1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD Ryzen 3 2200G with Radeon Vega Graphics, 3500.00 MHz,
17-11-00, patch 0810100b
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD Ryzen 3 2200G with Radeon Vega Graphics, 3500.00 MHz,
17-11-00, patch 0810100b
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: AMD Ryzen 3 2200G with Radeon Vega Graphics, 3500.00 MHz,
17-11-00, patch 0810100b
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 5 pa 0xfec00000, version 21, 24 pins
ioapic1 at mainbus0: apid 6 pa 0xfec01000, version 21, 32 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf8000000, bus 0-63
acpihpet0 at acpi0: 14318180 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 16 (GPP0)
acpiprt2 at acpi0: bus -1 (GPP2)
acpiprt3 at acpi0: bus -1 (GPP3)
acpiprt4 at acpi0: bus -1 (GPP4)
acpiprt5 at acpi0: bus -1 (GPP5)
acpiprt6 at acpi0: bus -1 (GPP6)
acpiprt7 at acpi0: bus 56 (GP17)
acpiprt8 at acpi0: bus 57 (GP18)
acpiprt9 at acpi0: bus 21 (GPP1)
acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
acpicmos0 at acpi0
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
acpibtn0 at acpi0: PWRB
amdgpio0 at acpi0 GPIO uid 0 addr 0xfed81500/0x400 irq 7, 184 pins
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"AMDIF030" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpicpu0 at acpi0: C2(0@400 io@0x414), C1(0@1 mwait), PSS
acpicpu1 at acpi0: C2(0@400 io@0x414), C1(0@1 mwait), PSS
acpicpu2 at acpi0: C2(0@400 io@0x414), C1(0@1 mwait), PSS
acpicpu3 at acpi0: C2(0@400 io@0x414), C1(0@1 mwait), PSS
acpipwrres0 at acpi0: P0ST, resource for SATA
acpipwrres1 at acpi0: P3ST, resource for SATA
acpivideo0 at acpi0: VGA_
acpivout0 at acpivideo0: LCD_
cpu0: 3500 MHz: speeds: 3500 2300 1600 MHz
pci0 at mainbus0 bus 0
ksmn0 at pci0 dev 0 function 0 "AMD 17h/1xh Root Complex" rev 0x00
"AMD 17h/1xh IOMMU" rev 0x00 at pci0 dev 0 function 2 not configured
pchb0 at pci0 dev 1 function 0 "AMD 17h PCIE" rev 0x00
ppb0 at pci0 dev 1 function 1 "AMD 17h/1xh PCIE" rev 0x00: msi
pci1 at ppb0 bus 16
amdgpu0 at pci1 dev 0 function 0 "ATI Polaris 10" rev 0xe7
drm0 at amdgpu0
amdgpu0: msi
azalia0 at pci1 dev 0 function 1 vendor "ATI", unknown product 0xaaf0
rev 0x00: msi
azalia0: no supported codecs
ppb1 at pci0 dev 1 function 2 "AMD 17h/1xh PCIE" rev 0x00: msi
pci2 at ppb1 bus 21
xhci0 at pci2 dev 0 function 0 vendor "AMD", unknown product 0x43d5
rev 0x01: msi, xHCI 1.10
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "AMD xHCI root hub" rev
3.00/1.00 addr 1
ahci0 at pci2 dev 0 function 1 "AMD 400 Series AHCI" rev 0x01: msi, AHCI 1.3.1
ahci0: port busy after first PMP probe FIS
ahci0: port busy after first PMP probe FIS
ahci0: port 1: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, MTFDDAK128MAM-1J, 070H> naa.500a07510c04e082
sd0: 122104MB, 512 bytes/sector, 250069680 sectors, thin
ppb2 at pci2 dev 0 function 2 "AMD 400 Series PCIE" rev 0x01
pci3 at ppb2 bus 22
ppb3 at pci3 dev 0 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci4 at ppb3 bus 23
ppb4 at pci3 dev 1 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci5 at ppb4 bus 24
ppb5 at pci3 dev 4 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci6 at ppb5 bus 27
re0 at pci6 dev 0 function 0 "Realtek 8168" rev 0x15: RTL8168H/8111H
(0x5400), msi, address 00:d8:61:35:80:7f
rgephy0 at re0 phy 7: RTL8251, rev. 0
ppb6 at pci3 dev 5 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci7 at ppb6 bus 28
ppb7 at pci3 dev 6 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci8 at ppb7 bus 29
ppb8 at pci3 dev 7 function 0 "AMD 400 Series PCIE" rev 0x01: msi
pci9 at ppb8 bus 30
pchb1 at pci0 dev 8 function 0 "AMD 17h PCIE" rev 0x00
ppb9 at pci0 dev 8 function 1 "AMD 17h/1xh PCIE" rev 0x00
pci10 at ppb9 bus 56
vendor "AMD", unknown product 0x145a (class instrumentation unknown
subclass 0x00, rev 0xc8) at pci10 dev 0 function 0 not configured
ccp0 at pci10 dev 0 function 2 "AMD 17h/1xh Crypto" rev 0x00
xhci1 at pci10 dev 0 function 3 "AMD 17h/1xh xHCI" rev 0x00: msix, xHCI 1.10
usb1 at xhci1: USB revision 3.0
uhub1 at usb1 configuration 1 interface 0 "AMD xHCI root hub" rev
3.00/1.00 addr 1
xhci2 at pci10 dev 0 function 4 "AMD 17h/1xh xHCI" rev 0x00: msix, xHCI 1.10
usb2 at xhci2: USB revision 3.0
uhub2 at usb2 configuration 1 interface 0 "AMD xHCI root hub" rev
3.00/1.00 addr 1
azalia1 at pci10 dev 0 function 6 "AMD 17h/1xh HD Audio" rev 0x00: msi
azalia1: codecs: Realtek ALC887
audio0 at azalia1
ppb10 at pci0 dev 8 function 2 "AMD 17h/1xh PCIE" rev 0x00
pci11 at ppb10 bus 57
ahci1 at pci11 dev 0 function 0 "AMD FCH AHCI" rev 0x61: msi, AHCI 1.3.1
scsibus2 at ahci1: 32 targets
piixpm0 at pci0 dev 20 function 0 "AMD FCH SMBus" rev 0x61: SMI
iic0 at piixpm0
iic0: addr 0x20 00=02 01=01 04=2a 06=2a 08=2a 09=3c 0b=18 0c=03 0d=23
0f=44 10=44 20=31 21=01 24=27 26=2a 28=2a 29=10 2b=18 2c=03 2d=23
2f=44 32=40 40=17 41=09 42=8f 43=a0 44=01 45=05 46=01 47=03 48=04
50=0f 51=07 52=55 53=ff 60=36 61=24 62=1b words 00=0202 01=0100
02=0000 03=0054 04=2a00 05=0054 06=2a00 07=0054
spdmem0 at iic0 addr 0x50: 16GB DDR4 SDRAM PC4-25600
iic1 at piixpm0
pcib0 at pci0 dev 20 function 3 "AMD FCH LPC" rev 0x51
pchb2 at pci0 dev 24 function 0 "AMD 17h/1xh Data Fabric" rev 0x00
pchb3 at pci0 dev 24 function 1 "AMD 17h/1xh Data Fabric" rev 0x00
pchb4 at pci0 dev 24 function 2 "AMD 17h/1xh Data Fabric" rev 0x00
pchb5 at pci0 dev 24 function 3 "AMD 17h/1xh Data Fabric" rev 0x00
pchb6 at pci0 dev 24 function 4 "AMD 17h/1xh Data Fabric" rev 0x00
pchb7 at pci0 dev 24 function 5 "AMD 17h/1xh Data Fabric" rev 0x00
pchb8 at pci0 dev 24 function 6 "AMD 17h/1xh Data Fabric" rev 0x00
pchb9 at pci0 dev 24 function 7 "AMD 17h/1xh Data Fabric" rev 0x00
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: SVM/RVI
uhidev0 at uhub0 port 9 configuration 1 interface 0 "vendor 0x275d USB
OPTICAL MOUSE" rev 1.10/1.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
uhidev1 at uhub0 port 10 configuration 1 interface 0 "SONiX AMAZON
MD005 Wired Keyboard" rev 2.00/1.04 addr 3
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev2 at uhub0 port 10 configuration 1 interface 1 "SONiX AMAZON
MD005 Wired Keyboard" rev 2.00/1.04 addr 3
uhidev2: iclass 3/0, 2 report ids
ucc0 at uhidev2 reportid 1: 573 usages, 20 keys, array
wskbd2 at ucc0 mux 1
uhid0 at uhidev2 reportid 2: input=1, output=0, feature=0
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (91f97a009fe85d25.a) swap on sd0b dump on sd0b
amdgpu0: POLARIS10 36 CU rev 0x01
amdgpu0: 1920x1080, 32bpp
wsdisplay0 at amdgpu0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wskbd2: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
urtwn0 at uhub2 port 1 configuration 1 interface 0 "Realtek 802.11n
WLAN Adapter" rev 2.00/2.00 addr 2
urtwn0: MAC/BB RTL8188CUS, RF 6052 1T1R, address 00:9e:95:9c:59:55
