[Intel/Haswell/Desktop] Core i5-4570 IMC Timings and DIMM geometry

[cyring]

i5-4570

Timings

Setting	CoreFreq	BIOS
tRRD	5	4
tWR	N/A	10
tFAW	N/A	20
tRTP	N/A	5
tWTP	N/A	21
drWR	4	5
tCKE	N/A	4

Geometry

( 8 x Bank x Rank x Rows x Cols ) / ( 1024 x 1024 )

( 8 x 8 x 2 x 16384 x 1024 ) / ( 1024 x 1024) = 2048 MB vs 8192 MB

Originally posted by @cyring in https://github.com/cyring/CoreFreq/discussions/342#discussioncomment-2934706

[cyring]

@svmlegacy and any Broadwell, Haswell owner:

I need to dump Register at MCHBAR address 0x4c00 (This register is undocumented, so we are reversing in this header file)

Based on develop branch, in function HSW_IMC(), add the following printf to dump the register value.

https://github.com/cyring/CoreFreq/blob/2fe50f3d859b479b3b54f178d2a4939019663308/corefreqd.c#L3824

    for (cha = 0; cha < RO(Shm)->Uncore.MC[mc].ChannelCount; cha++)
    {
	printf( "Cha(%d) REG4C00[%x]\n", cha,
		RO(Proc)->Uncore.MC[mc].Channel[cha].HSW.REG4C00.value );

Please post the output of corefreqd here, bellow:

[cyring]

@svmlegacy : For IMC testing, here's a Haswell/Broadwell development archive.

CoreFreq_develop.tar.gz

[cyring]

@svmlegacy Hello,

Changes are now tracked through a dedicated Haswell, Broadwell branch

You just have to pull and build develop_HSW_BDW to test the IMC

Thank you

[svmlegacy]

Intel Core i5-4570

Develop branch:

develop_HSW_BDW branch:

[cyring]

develop_HSW_BDW branch:

Thank you.

Can you pull and test develop_HSW_BDW in which I'm trying to better estimate the DIMM slots count.

[svmlegacy]

Motherboard is a Gigabyte GA-Z97-HD3P Rev. 1.0 Four DIMM slots available, slots "3" & "4" populated (Closest and 3rd closest to CPU socket)

[cyring]

Motherboard is a Gigabyte GA-Z97-HD3P Rev. 1.0 Four DIMM slots available, slots "3" & "4" populated (Closest and 3rd closest to CPU socket)

If dual channel set, topology looks OK but what is wrong is the number of rows: it should be 65536 instead of 16384

[cyring]

@svmlegacy Can you please pull and test the develop branch ?

DIMM rows count is now computed using a formula made for Skylake.

[cyring]

@svmlegacy Can you please pull and test the develop branch ?

DIMM rows count is now computed using a formula made for Skylake.

@svmlegacy could you please test Haswell IMC from latest develop ?

[svmlegacy]

Fresh pull from Develop:

[cyring]

@svmlegacy Can you please pull and try develop again ?

Commit attempts to fix the DIMM banks. I think it should be 8 for CM3X8GA2133C9D8 It can be confirmed if you run dmidecode -t memory

[svmlegacy]

@svmlegacy Can you please pull and try develop again ?

Commit attempts to fix the DIMM banks. I think it should be 8 for CM3X8GA2133C9D8 It can be confirmed if you run dmidecode -t memory

$ ./corefreq-cli -M
                            Lynx Point-M  [ C00]                           
Controller #0                                                Dual Channel  
 Bus Rate  1333 MHz       Bus Speed 1333 MHz           DDR3 Speed 1333 MHz 
                                                                           
 Cha    CL  RCD   RP  RAS  RRD  RFC   WR RTPr WTPr  FAW  B2B  CWL CMD  REFI
  #0     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
  #1     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
      ddWR drWR srWR ddRW drRW srRW ddRR drRR srRR ddWW drWW srWW CKE   ECC
  #0     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
  #1     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
                                                                           
 DIMM Geometry for channel #0                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  
 DIMM Geometry for channel #1                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  

[svmlegacy]

Adding my Xeon E3-1270L v4 (Broadwell LGA1150) before I switch back to 1155...

$ ./corefreq-cli -M
                           X99/Wellsburg  [1618]                           
Controller #0                                                Dual Channel  
 Bus Rate  2133 MHz       Bus Speed 2128 MHz           DDR3 Speed 2133 MHz 
                                                                           
 Cha    CL  RCD   RP  RAS  RRD  RFC   WR RTPr WTPr  FAW  B2B  CWL CMD  REFI
  #0     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
  #1     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
      ddWR drWR srWR ddRW drRW srRW ddRR drRR srRR ddWW drWW srWW CKE   ECC
  #0     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
  #1     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
                                                                           
 DIMM Geometry for channel #0                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  
 DIMM Geometry for channel #1                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  

[cyring]

Adding my Xeon E3-1270L v4 (Broadwell LGA1150) before I switch back to 1155...

$ ./corefreq-cli -M
                           X99/Wellsburg  [1618]                           
Controller #0                                                Dual Channel  
 Bus Rate  2133 MHz       Bus Speed 2128 MHz           DDR3 Speed 2133 MHz 
                                                                           
 Cha    CL  RCD   RP  RAS  RRD  RFC   WR RTPr WTPr  FAW  B2B  CWL CMD  REFI
  #0     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
  #1     9    9    9   24    5  174    0    0    0    0    0    7  1T  5200
      ddWR drWR srWR ddRW drRW srRW ddRR drRR srRR ddWW drWW srWW CKE   ECC
  #0     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
  #1     5    4   18    9    9    9    6    6    4    7    7    4   0    0 
                                                                           
 DIMM Geometry for channel #0                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  
 DIMM Geometry for channel #1                                              
      Slot Bank Rank     Rows   Columns    Memory Size (MB)                
       #0     8    2     65536      1024           8192  CM3X8GA2133C9D8   
       #1                                                                  

On that Broadwell, CM3X8GA2133C9D8 DIMMs are this time at 2133 MHz Do you confirm it matches BIOS setup ?

[svmlegacy]

On that Broadwell, CM3X8GA2133C9D8 DIMMs are this time at 2133 MHz Do you confirm it matches BIOS setup ?

BIOS lists memory speed and timings as 1333 MHz, 9-9-9

[cyring]

On that Broadwell, CM3X8GA2133C9D8 DIMMs are this time at 2133 MHz Do you confirm it matches BIOS setup ?

BIOS lists memory speed and timings as 1333 MHz, 9-9-9

Haswell & Broadwell cases are decoded by same code. I think that if speed differs, using same DIMM, means both platform registers are not of same bit values.

[cyring]

Remaining actions are linked to unspecified Timings registers.