RX7640 Adding Memory to Existing Configuration

[joe vorstandlechner]

Hi,

I have been searching for configuration information for adding 4Gb memory DIMMs in an RX7640 which currently has 8Gb DIMMS as follows:

Memory Board Inventory [1]

   DIMM Location          Size(MB) State   Serial Num       Part Num
   --------------------   -------- ------- ---------------- ------------------
   Cab 0 Cell 0 DIMM 0A   8192     Config  PRY102706D       AB456-60301      
   Cab 0 Cell 0 DIMM 0B   8192     Config  PRR1029084       AB456-60301      
   Cab 0 Cell 0 DIMM 1A   8192     Config  PRY1027052       AB456-60301      
   Cab 0 Cell 0 DIMM 1B   8192     Config  PRR1029040       AB456-60301      
   Cab 0 Cell 0 DIMM 2A   8192     Config  PRR102902K       AB456-60301      
   Cab 0 Cell 0 DIMM 2B   8192     Config  PRY102706V       AB456-60301      
   Cab 0 Cell 0 DIMM 3A   8192     Config  PRY1027024       AB456-60301      
   Cab 0 Cell 0 DIMM 3B   8192     Config  PRR102902J       AB456-60301      
   Cab 0 Cell 0 DIMM 4A   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 4B   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 5A   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 5B   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 6A   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 6B   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 7A   ----     ----    ----             ----             
   Cab 0 Cell 0 DIMM 7B   ----     ----    ----             ----             

   Cab 0 Cell 0 Total: 65536 (MB)

   ===========================================================================

   DIMM Location          Size(MB) State   Serial Num       Part Num
   --------------------   -------- ------- ---------------- ------------------
   Cab 0 Cell 1 DIMM 0A   8192     Config  PRY102703N       AB456-60301      
   Cab 0 Cell 1 DIMM 0B   8192     Config  PRY102706W       AB456-60301      
   Cab 0 Cell 1 DIMM 1A   8192     Config  PRY1027021       AB456-60301      
   Cab 0 Cell 1 DIMM 1B   8192     Config  PRY102701M       AB456-60301      
   Cab 0 Cell 1 DIMM 2A   8192     Config  PRR102901Y       AB456-60301      
   Cab 0 Cell 1 DIMM 2B   8192     Config  PRY102706G       AB456-60301      
   Cab 0 Cell 1 DIMM 3A   8192     Config  PRR102900T       AB456-60301      
   Cab 0 Cell 1 DIMM 3B   8192     Config  PRY1027016       AB456-60301      
   Cab 0 Cell 1 DIMM 4A   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 4B   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 5A   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 5B   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 6A   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 6B   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 7A   ----     ----    ----             ----             
   Cab 0 Cell 1 DIMM 7B   ----     ----    ----             ----             

   Cab 0 Cell 1 Total: 65536 (MB)

   ===========================================================================

Memory Error Log Summary [2]

   DIMM Location           Error Address     Error Type  Page           Count
   ----------------------  ----------------  ----------  -------------  -----
   Cab 0 Cell 1 DIMM 0B    0x629a13b80       Single-Bit  0x629a13       1   

Would like to fill by adding 4 GB DIMMS in combination with the 8Gb DImms.

What is the recommended way to do this ?

thanks in advance,

[joe vorstandlechner]

Saw this in a post for the 6600.  Is it similar ?

thx.

‎07-04-2011 10:20 PM

So i have to intsall the memory as follows?

4GB Modules

side0 (0A, 0B,0C,0D), side1 (0A, 0B,0C,0D), side0 (1A, 1B,1C,1D)

2GB Modules

side1 (1A, 1B,1C,1D), side0 (2A, 2B,2C,2D), side1 (2A, 2B,2C,2D)

Manoj K

Thanks and Regards,
Manoj K

[S_Logan]

Hi Manoj,

Memory Loading rules to be followed:

1) Memory shold be installed in Pairs

2) Larger memory modules first then smaller memory modules

3) The memory loading order would be 0A,0B then 1A, 1B .......7A,7B

HTH

Regards,

S_Logan

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[Holger G]

Hi Joe,

I would recommend to even read the Memory Loading Rules and Performance Tuning Guidelines in the Configuration chapter of the QuickSpecs for this system, as it has more details and examples.
E.g., as you have both cells in a single partition, you should load memory equally across the cell boards for best performance.

Click here to access HP Integrity rx7640 Server QuickSpecs.

Kind Regards

Holger

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