bugdmidecode - Bugs: bug #37557, wrom memory speed reported


bug #37557: wrom memory speed reported

Submitted by:  None
Submitted on:  Fri 12 Oct 2012 10:40:31 AM UTC  
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: Need Info
Privacy: PublicAssigned to: Anton Arapov <aarapov>
Open/Closed: Closed

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Wed 25 Sep 2013 11:38:09 AM UTC, comment #2:

Close it. Feel free to reopen and provide the necessary data.

Anton Arapov <aarapov>
Project AdministratorIn charge of this item.
Fri 22 Mar 2013 07:43:15 AM UTC, comment #1:

Likely it is an issue of the BIOS itself. Please try to update BIOS to the latest one and reproduce the issue.

And send me or attach to this bug a dmi binary of your machine that you can collect with "dmidecode --dump-bin"


Anton Arapov <aarapov>
Project AdministratorIn charge of this item.
Fri 12 Oct 2012 10:40:31 AM UTC, original submission:


I have 4 X 4gb 1600 c9 ddr3 Vengeance memory modules installed no an intel dh77eb (H77 chip) motherboard with latest bios version and intel i5-3450 CPU. Im running Kubuntu 12.04 LTS.

I set the clock speed at 1600.

Bios reports 1600.

Memtest86 reports 1600.

sudo hdparm -T /dev/sda:
Timing cached reads: 22502 MB in 2.00 seconds = 11261.54 MB/sec

sudo dmidecode --type memory:

# dmidecode 2.11
SMBIOS 2.7 present.

Handle 0x0007, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: Not Provided
Number Of Devices: 4

Handle 0x0028, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0007
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM3
Bank Locator: DIMM3
Type: DDR3
Type Detail: Synchronous
Speed: 1333 MHz
Manufacturer: M0
Serial Number: BANK 0
Asset Tag: 029E
Part Number: 00000000
Rank: 2
Configured Clock Speed: 1333 MHz


my guess would be that 1600 and not 1333 is the correct reading.

by, georg.



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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 25 Sep 2013 11:38:09 AM UTCaarapovOpen/ClosedOpen=>Closed
    Tue 16 Apr 2013 11:59:54 AM UTCaarapovStatusNone=>Need Info
    Fri 22 Mar 2013 07:43:23 AM UTCaarapovAssigned toNone=>aarapov

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