I'm curious to know whether the following output :

bash-4.0# echo "memscrub_scans_done/U" | mdb -k
memscrub_scans_done:
memscrub_scans_done:            1985            

means that Solaris considers ECC memory is effectively installed  (the fact 
that it is non-zero)?


I have installed unbuffered ECC memory (2x4GB crucial kit CT2KIT51272AA667).

The reason is that the vendor (ACER) of the mainboard says it is not supported, 
and I can not get into the bios any more, but osol boots fine and sees 8GB.  
Crucial says it's not supported because Acer says it's not supported...  This 
is an MCP78S based motherboard (apparently equivalent Asus and Gigabyte boards 
are _supported_ platforms for this memory)...

The following output from smbios:

0     78   SMB_TYPE_BIOS (BIOS information)

  Vendor: Phoenix Technologies, LTD
  Version String: R01-B0
  Release Date: 03/31/2009
  Address Segment: 0xe000
  ROM Size: 524288 bytes
  Image Size: 131072 bytes
  Characteristics: 0x7fcb9e90
        SMB_BIOSFL_ISA (ISA is supported)
        SMB_BIOSFL_PCI (PCI is supported)
        SMB_BIOSFL_PLUGNPLAY (Plug and Play is supported)
        SMB_BIOSFL_APM (APM is supported)
        SMB_BIOSFL_FLASH (BIOS is Flash Upgradeable)
        SMB_BIOSFL_SHADOW (BIOS shadowing is allowed)
        SMB_BIOSFL_CDBOOT (Boot from CD is supported)
        SMB_BIOSFL_SELBOOT (Selectable Boot supported)
        SMB_BIOSFL_ROMSOCK (BIOS ROM is socketed)
        SMB_BIOSFL_EDD (EDD Spec is supported)
        SMB_BIOSFL_525_360K (int 0x13 5.25" 360K floppy)
        SMB_BIOSFL_525_12M (int 0x13 5.25" 1.2M floppy)
        SMB_BIOSFL_35_720K (int 0x13 3.5" 720K floppy)
        SMB_BIOSFL_35_288M (int 0x13 3.5" 2.88M floppy)
        SMB_BIOSFL_I5_PRINT (int 0x5 print screen svcs)
        SMB_BIOSFL_I9_KBD (int 0x9 8042 keyboard svcs)
        SMB_BIOSFL_I14_SER (int 0x14 serial svcs)
        SMB_BIOSFL_I17_PRINTER (int 0x17 printer svcs)
        SMB_BIOSFL_I10_CGA (int 0x10 CGA svcs)
  Characteristics Extension Byte 1: 0x33
        SMB_BIOSXB1_ACPI (ACPI is supported)
        SMB_BIOSXB1_USBL (USB legacy is supported)
        SMB_BIOSXB1_LS120 (LS-120 boot is supported)
        SMB_BIOSXB1_ATZIP (ATAPI ZIP drive boot is supported)
  Characteristics Extension Byte 2: 0x5
        SMB_BIOSXB2_BBOOT (BIOS Boot Specification supported)
        SMB_BIOSXB2_ETCDIST (Enable Targeted Content Distrib.)
  Version Number: 0.0
  Embedded Ctlr Firmware Version Number: 0.0

ID    SIZE TYPE
1     78   SMB_TYPE_SYSTEM (system information)

  Manufacturer: Acer
  Product: Aspire X3200
  Version: R01-A3
  Serial Number: 9E3PM75C7P839053093003

  UUID: ffffffff-ffff-ffff-ffff-ffffffffffff
  Wake-Up Event: 0x6 (power switch)
  SKU Number:  
  Family:  

ID    SIZE TYPE
2     62   SMB_TYPE_BASEBOARD (base board)

  Manufacturer: Acer
  Product: WMCP78M
  Version:         
  Serial Number: 0000000000000000000000
  Asset Tag:  
  Location Tag:  

  Chassis: 48
  Flags: 0x1
        SMB_BBFL_MOTHERBOARD (board is a motherboard)
  Board Type: 0xa (motherboard)

ID    SIZE TYPE
3     76   SMB_TYPE_CHASSIS (system enclosure or chassis)

  Manufacturer: Acer
  Version:         
  Serial Number: 0000000000000000000000
  Asset Tag: 0000000000000000000000

  OEM Data: 0x0
  Lock Present: N
  Chassis Type: 0x3 (desktop)
  Boot-Up State: 0x2 (unknown)
  Power Supply State: 0x2 (unknown)
  Thermal State: 0x2 (unknown)
  Chassis Height: 0u
  Power Cords: 0
  Element Records: 0

ID    SIZE TYPE
4     101  SMB_TYPE_PROCESSOR (processor)

  Manufacturer: AMD
  Version: AMD Phenom(tm) 9550 Quad-Core Processor
  Serial Number:  
  Asset Tag:  
  Location Tag: Socket AM2 
  Part Number:  

  Family: 1 (other)
  CPUID: 0x178bfbff00100f23
  Type: 3 (central processor)
  Socket Upgrade: 4 (ZIF socket)
  Socket Status: Populated
  Processor Status: 1 (enabled)
  Supported Voltages: 1.2V
  External Clock Speed: Unknown
  Maximum Speed: 2200MHz
  Current Speed: 2200MHz
  L1 Cache: 8
  L2 Cache: 9
  L3 Cache: None

ID    SIZE TYPE
8     33   SMB_TYPE_CACHE (processor cache)

  Location Tag: Internal Cache

  Level: 1
  Maximum Installed Size: 131072 bytes
  Installed Size: 131072 bytes
  Speed: Unknown
  Supported SRAM Types: 0x20
        SMB_CAT_SYNC (synchronous)
  Current SRAM Type: 0x20 (synchronous)
  Error Correction Type: 2 (unknown)
  Logical Cache Type: 2 (unknown)
  Associativity: 2 (unknown)
  Mode: 1 (write-back)
  Location: 0 (internal)
  Flags: 0x1
        SMB_CAF_ENABLED (enabled at boot time)

ID    SIZE TYPE
9     33   SMB_TYPE_CACHE (processor cache)

  Location Tag: External Cache

  Level: 2
  Maximum Installed Size: 524288 bytes
  Installed Size: 524288 bytes
  Speed: Unknown
  Supported SRAM Types: 0x20
        SMB_CAT_SYNC (synchronous)
  Current SRAM Type: 0x20 (synchronous)
  Error Correction Type: 2 (unknown)
  Logical Cache Type: 2 (unknown)
  Associativity: 2 (unknown)
  Mode: 1 (write-back)
  Location: 0 (internal)
  Flags: 0x1
        SMB_CAF_ENABLED (enabled at boot time)

...
ID    SIZE TYPE
23    15   SMB_TYPE_MEMARRAY (physical memory array)

  Location: 3 (system board or motherboard)
  Use: 3 (system memory)
  ECC: 3 (none)
  Number of Slots/Sockets: 2
  Memory Error Data: Not Supported
  Max Capacity: 4294967296 bytes

ID    SIZE TYPE
24    86   SMB_TYPE_MEMDEVICE (memory device)

  Manufacturer: 2C00000000000000
  Serial Number: E40EE26D
  Asset Tag: None
  Location Tag: A0
  Part Number: 18HTF51272AY-667A

  Physical Memory Array: 23
  Memory Error Data: Not Supported
  Total Width: 64 bits
  Data Width: 64 bits
  Size: 4294967296 bytes
  Form Factor: 9 (DIMM)
  Set: None
  Memory Type: 19 (DDR2)
  Flags: 0x80
        SMB_MDF_SYNC (synchronous)
  Speed: Unknown
  Device Locator: A0
  Bank Locator: Bank0/1

ID    SIZE TYPE
25    86   SMB_TYPE_MEMDEVICE (memory device)

  Manufacturer: 2C00000000000000
  Serial Number: E40EE242
  Asset Tag: None
  Location Tag: A1
  Part Number: 18HTF51272AY-667A

  Physical Memory Array: 23
  Memory Error Data: Not Supported
  Total Width: 64 bits
  Data Width: 64 bits
  Size: 4294967296 bytes
  Form Factor: 9 (DIMM)
  Set: None
  Memory Type: 19 (DDR2)
  Flags: 0x80
        SMB_MDF_SYNC (synchronous)
  Speed: Unknown
  Device Locator: A1
  Bank Locator: Bank2/3

ID    SIZE TYPE
26    15   SMB_TYPE_MEMARRAYMAP (memory array mapped address)

  Physical Memory Array: 23
  Devices per Row: 1
  Physical Address: 0x0
  Size: 8589934592 bytes

ID    SIZE TYPE
27    19   SMB_TYPE_MEMDEVICEMAP (memory device mapped address)

  Memory Device: 24
  Memory Array Mapped Address: 26
  Physical Address: 0x0
  Size: 4294967296 bytes
  Partition Row Position: 1
  Interleave Position: 0
  Interleave Data Depth: 0

ID    SIZE TYPE
28    19   SMB_TYPE_MEMDEVICEMAP (memory device mapped address)

  Memory Device: 25
  Memory Array Mapped Address: 26
  Physical Address: 0x100000000
  Size: 4294967296 bytes
  Partition Row Position: 1
  Interleave Position: 0
  Interleave Data Depth: 0
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