IBM xSeries 380 Hardware Maintenance Manual page 125

Spec
Offset
Version
0Ch 2.1+ Size
0Eh 2.1+ Form Factor
0Fh 2.1+ Device Set
10h 2.1+ Device Locator
11h 2.1+ Bank Locator
12h 2.1+ Memory Type
13h 2.1+ Type Detail
15h 2.3+ Speed
17h 2.3+ Manufacturer
18h 2.3+ Serial Number
19h 2.3+ Asset Tag
1Ah 2.1+ Part Number
Memory device — form factor:
Note: Enumerated values are controlled by the DMTF, not this specification.
Byte value
01h
Name Length Value
WORD Varies
BYTE ENUM
BYTE Varies
BYTE STRING
BYTE STRING
BYTE ENUM
WORD Bit field
WORD Varies
BYTE STRING
BYTE STRING
BYTE STRING
BYTE STRING
Meaning
Other
Description
The size of the memory device. If the value is 0, no
memory dev ice is installed in the socket; if the size is
unknown, the field value is FFFFh. The granularity in
which the value is specified depends on the setting of the
most-significant bit (bit 15). If the bit is 0, the v alue is
specified in megabyte units; if the bit is 1, the value is
specified in kilobyte units. For example, the value 8100h
identifies a 256 KB memory device and 0100h identifies a
256 MB memory dev ice.
The implementation form factor for this memory device.
See System Management BI OS Reference Specification,
v2.3.1, section 3.3.18.1 for definitions.
Identifies when the Memory Device is one of a set of
Memory Devices that must be populated with all devices
of the same type and size, and the set to which this device
belongs. A value of 0 indicates that the dev ice is not part
of a set; a value of FFh indicates that the attribute is
unknown.
Note: A Device Set number must be unique within the
context of the Memory Array containing this
Memory Device.
The string number of the string that identifies the
physically labeled socket or board position where the
memory dev ice is located, e.g., "SIMM 3".
The string number of the string that identifies the
physically labeled bank where the memory device is
located, e.g., "Bank 0" or "A".
The type of memory used in this device, See System
Management BIOS Reference Specification, v2.3.1, section
3.3.18.2 for definitions.
Additional detail on the memory device type, See System
Management BIOS Reference Specification, v2.3.1, section
3.3.18.3 for definitions.
Identifies the speed of the device, in megahertz (MHz). I f
the value is 0, the speed is unknown.
Note: n MHz = (1000 / n) nanoseconds (ns)
Number for the manufacturer of this memory device.
Number for the serial number of this memory device.
This value is set by the manufacturer and normally not
changeable.
String number for the asset tag of this memory device.
String number for the part number of this memory device.
This value is set by the manufacturer and normally not
changeable.
115
Configur ation