Hello,
Following is a partial output of decode-dimms: ------------------------------------------------------------------------- Module Type 72b-SO-UDIMM .... Maximum module speed 1333 MHz Size 4096 MB Banks x Rows x Columns x Bits 8 x 16 x 10 x 64 Ranks 1 SDRAM Device Width 8 bits Bus Width Extension 8 bits tCL-tRCD-tRP-tRAS 9-9-9-24 Supported CAS Latencies (tCL) 10T, 9T, 8T, 7T, 6T
---=== Timing Parameters ===--- Minimum Write Recovery time (tWR) 15.000 ns Minimum Row Active to Row Active Delay (tRRD) 6.000 ns Minimum Active to Auto-Refresh Delay (tRC) 49.125 ns Minimum Recovery Delay (tRFC) 260.000 ns Minimum Write to Read CMD Delay (tWTR) 7.500 ns Minimum Read to Pre-charge CMD Delay (tRTP) 7.500 ns Minimum Four Activate Window Delay (tFAW) 30.000 ns
Number of SDRAM DIMMs detected and decoded: 1 --------------------------------------------------------------------------------- Following is a partial output of dmidecode: --------------------------------------------------------------------------------- Handle 0x0011, DMI type 17, 40 bytes Memory Device Array Handle: 0x000F Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: A1_DIMM0 Bank Locator: A1_BANK0 Type: DDR3 Type Detail: Unknown Speed: 1333 MHz Manufacturer: A1_Manufacturer0 Serial Number: A1_SerNum0 Asset Tag: A1_AssetTagNum0 Part Number: Array1_PartNumber0 Rank: Unknown Configured Clock Speed: 1066 MHz Minimum Voltage: 1.35 V Maximum Voltage: 1.5 V Configured Voltage: 1.35 V ----------------------------------------------------------------------------------------- According to the above output I set the following in BCT:
Enable Memory Down: Disabled DRAM Speed: 1333 DRAM Type: DDR3 DIMM 0 Enable: Enabled DIMM 1 Enabled: Disabled DIMM_DWidth: x8 DIMM Density: 4 Gbit DIMM_BusWidth: 8 bits DIMM_Sides: 1 Ranks tCL: 9 tRP_tRCD: 9 tWR: 15 tWTR: 7 tRRD: 6 tRTP: 7 tFAW: 30
I set DIMM_Density according to DDR's datasheet (MEM4G08D3E/FABG)
Can you please tell if my settings are correct ? tWTR = 7.5nsec. but BCT gets only integer value. tRTP = 7.5nsec but BCT gets only integer value. Configured Clock Speed: 1066 MHz. Is this the speed I should set ?
Thank you, Zvika
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Zvi Vered