imsngn / i7z

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Intel i7-4960x Ivy Bridge Extreme Not Detected / Clock Speed Reports Wrong #77

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago
I may be slow in responding to issues till the end of June 2013.

Step 1. What steps will reproduce the problem?
Running the program with the 4960x CPU produces the following output.

i7z DEBUG: i7z version: svn-r77-(20-Nov-2011)
i7z DEBUG: Found Intel Processor
i7z DEBUG:    Stepping 4
i7z DEBUG:    Model e
i7z DEBUG:    Family 6
i7z DEBUG:    Processor Type 0
i7z DEBUG:    Extended Model 3
i7z DEBUG: msr = Model Specific Register
i7z DEBUG: detected a newer model of ivy bridge processor
i7z DEBUG: my coder doesn't know about it, can you send the following info to 
him?
i7z DEBUG: model e, extended model 3, proc_family 6
i7z DEBUG: msr device files exist /dev/cpu/*/msr
i7z DEBUG: You have write permissions to msr device files

------------------------------
--[core id]--- Other information
-------------------------------------
--[0] Processor number 0
--[0] Socket number/Hyperthreaded Sibling number  0,-1
--[0] Core id number 0
--[0] Display core in i7z Tool: Yes

--[1] Processor number 1
--[1] Socket number/Hyperthreaded Sibling number  0,-1
--[1] Core id number 1
--[1] Display core in i7z Tool: Yes

--[2] Processor number 2
--[2] Socket number/Hyperthreaded Sibling number  0,-1
--[2] Core id number 2
--[2] Display core in i7z Tool: Yes

--[3] Processor number 3
--[3] Socket number/Hyperthreaded Sibling number  0,-1
--[3] Core id number 3
--[3] Display core in i7z Tool: Yes

--[4] Processor number 4
--[4] Socket number/Hyperthreaded Sibling number  0,-1
--[4] Core id number 4
--[4] Display core in i7z Tool: Yes

--[5] Processor number 5
--[5] Socket number/Hyperthreaded Sibling number  0,-1
--[5] Core id number 5
--[5] Display core in i7z Tool: Yes

Socket-0 [num of cpus 6 physical 6 logical 6] 0,1,2,3,4,5,
Socket-1 [num of cpus 0 physical 0 logical 0] 
GUI has been Turned ON
Logging is OFF
i7z DEBUG: Single Socket Detected
i7z DEBUG: In i7z Single_Socket()
i7z DEBUG: guessing Nehalem

Step 2. What version of the product are you using (the download version or
the svn
version and which one)?

The download version, 0.27.2.

Step 3. If this is an enhancement or suggestion, skip this step (except if
its related to a particular OS or architecture). On what operating system?
BTW is it a 32-bit or a 64-bit OS/Kernel?

Ubuntu desktop 13.10 amd64 3.11.0-12-generic kernel

Step 4. Do provide information if bug/enhancement is related to a
particular OS/Processor. Please provide any additional information below
(helpful will be platform
information like number and types of cpus, motherboard and a copy of
/proc/cpuinfo)

The CPU I'm using is the Core i7-4960x Ivy Bridge-E CPU on the Asus Rampage IV 
Extreme motherboard.  I should also note that i7z (or turbostat) does not 
report the correct clock speed when overclocking the chip.  Essentially it 
never seems to report a speed beyond the base clock of 3.6GHz despite what 
multiplier is set in the bios.

/proc/cpuinfo is attached 

Step 5. If the program crashes. Can you also paste the
output of ls -lt /dev/cpu/*/msr?

Step 6. If the program crashed OR if this is for a new i7 chip. Can you
also run the following commands? They read various registers
and if those registers cannot be read the tool fails ungracefully. You will
have to sudo
each commmand and probably also do sudo modprobe msr (before running the
programs)

rdmsr 0x19c
88440000

rdmsr 0x1a2
5f0e00

rdmsr 0x38d
333

rdmsr 778
ffff197cb670

rdmsr 779
47ddd2080

rdmsr 1020
2523f6390

rdmsr 1021
d201debf024

Original issue reported on code.google.com by sam.k...@gmail.com on 22 Nov 2013 at 8:00

Attachments:

GoogleCodeExporter commented 9 years ago
Hello, which motherboard are you using?

I've verified this same issue across multiple ASUS R4BE.  I've gotten note that 
this is an issue with the BIOS and EIST - and will not be fixed in future BIOS 
updates.  

Original comment by ve...@begolli.com on 12 Sep 2014 at 2:10