General Category > General Discussion

Identifying Corrected Atom Hardware

(1/3) > >>

I have just purchased, but have not yet received, a brand new SuperMicro 5018A-FTN4 which has motherboard Super A1SRi-2758F.  That motherboard has an Intel Atom Processor C2758 which I understand had an issue a couple of months back.

When the hardware arrives on Monday, how do I identify if the hardware is the latest version with whatever fixes are required?

I have found the this PDF from Intel, but it's not clear, to me at least, what I should really be looking for to make sure the hardware is the latest version.

Based on my understanding of the document, I'm looking for this code: R3GQ on the processor with the previous version being R1CW.  Does that sound correct?

I have the same motherboard, I gave up because I could never find the info to even verify what I did find, does stepping 8 mean B0 or C0, and other things, hopefully you will have better luck

Where do you see stepping 8?

I just SSH in and run dmidecode -t processor

[2.4.2-RELEASE][admin@pfSense.localdomain]/root: dmidecode -t processor
# dmidecode 3.1
Scanning /dev/mem for entry point.
SMBIOS 2.8 present.

Handle 0x0027, DMI type 4, 42 bytes
Processor Information
   Socket Designation: CPU0
   Type: Central Processor
   Family: Atom
   Manufacturer: Intel(R) Corporation
   ID: D8 06 04 00 FF FB EB BF
   Signature: Type 0, Family 6, Model 77, Stepping 8                        
      FPU (Floating-point unit on-chip)
      VME (Virtual mode extension)
      DE (Debugging extension)
      PSE (Page size extension)
      TSC (Time stamp counter)
      MSR (Model specific registers)
      PAE (Physical address extension)
      MCE (Machine check exception)
      CX8 (CMPXCHG8 instruction supported)
      APIC (On-chip APIC hardware supported)
      SEP (Fast system call)
      MTRR (Memory type range registers)
      PGE (Page global enable)
      MCA (Machine check architecture)
      CMOV (Conditional move instruction supported)
      PAT (Page attribute table)
      PSE-36 (36-bit page size extension)
      CLFSH (CLFLUSH instruction supported)
      DS (Debug store)
      ACPI (ACPI supported)
      MMX (MMX technology supported)
      FXSR (FXSAVE and FXSTOR instructions supported)
      SSE (Streaming SIMD extensions)
      SSE2 (Streaming SIMD extensions 2)
      SS (Self-snoop)
      HTT (Multi-threading)
      TM (Thermal monitor supported)
      PBE (Pending break enabled)
   Version: Intel(R) Atom(TM) CPU  C2758  @ 2.40GHz
   Voltage: 1.6 V
   External Clock: 100 MHz
   Max Speed: 2600 MHz
   Current Speed: 2400 MHz
   Status: Populated, Enabled
   Upgrade: Other
   L1 Cache Handle: 0x0025
   L2 Cache Handle: 0x0026
   L3 Cache Handle: Not Provided
   Serial Number: Not Specified
   Asset Tag: ProcessorInfo_ASSET_TAG
   Part Number: Not Specified
   Core Count: 8
   Core Enabled: 8
   Thread Count: 8
      64-bit capable

What really is the most aggravating thing is to pull the thing apart and just pop the heatsink off and just read it directly on the chip to see what s-spec it is and go from there, haven't figured out how to get that info from the command line yet, and that is what is frustrating. According to SuperMicro all motherboards after a certain month of 2017 (January or something, I can not recall) is suppose to have the fix. OK, but how do you know when your MB/Server was built, there is no serial number list that I can find, they make it difficult for sure. Bought mine in June 2017, but who knows when it was built. Figured by the time it shits the bed, C3000 support should be fully functional then in pfsense so not gonna worry about it so much.

Dunno...that pdf I reference doesn't say, as far as I can see, anything about a Stepping of "8".  As you suggest they only reference B0 and C0.  It seems like those are markings on the processor itself?

My machine will be here in a few days and it is brand new from SuperMicro, so I guess we can compare notes then.

BTW, how is the performance?  Are you using gigabit WAN speeds by any chance?


[0] Message Index

[#] Next page

Go to full version