Component Identification Information - Intel X3330 - Xeon 2.66 Ghz 6M L2 Cache 1333MHz FSB LGA775 Quad-Core Processor Specification

Component Identification
Information
The Intel® Xeon® Processor 3300 Series can be identified by the following values:
Reserved
31:28
When EAX is initialized to a value of 1, the CPUID instruction returns the Extended
Family, Extended Model, Type, Family, Model and Stepping value in the EAX register.
Note that the EDX processor signature value after reset is equivalent to the processor
signature output value in the EAX register.
Notes:
1. The Extended Family, bits [27:20] are used in conjunction with the Family Code,
specified in bits [11:8], to indicate whether the processor belongs to the Intel386,
Intel486, Pentium, Pentium Pro, Pentium 4, Intel® Core
TM
Core
2. The Extended Model, bits [19:16] in conjunction with the Model Number, specified
in bits [7:4], are used to identify the model of the processor within the processor's
family.
3. The Processor Type, specified in bits [13:12] indicates whether the processor is an
original OEM processor or a Dual CPU Socket system.
4. The Family Code corresponds to bits [11:8] of the EDX register after RESET, bits
[11:8] of the EAX register after the CPUID instruction is executed with a 1 in the
EAX register, and the generation field of the Device ID register accessible through
Boundary Scan.
5. The Model Number corresponds to bits [7:4] of the EDX register after RESET, bits
[7:4] of the EAX register after the CPUID instruction is executed with a 1 in the EAX
register, and the model field of the Device ID register accessible through Boundary
Scan.
6. The Stepping ID in bits [3:0] indicates the revision number of that model. See
Table 2, "Intel® Xeon® Processor 3300 Series Identification Information"
processor stepping ID number in the CPUID information.
Cache and TLB descriptor parameters are provided in the EAX, EBX, ECX and EDX
registers after the CPUID instruction is executed with a 2 in the EAX register. Refer to
the Intel Processor Identification and the CPUID Instruction Application Note (AP-485)
for further information on the CPUID instruction.
Intel® Xeon® Processor 3300 Series
Specification Update January 2012
Extended Extended
1 2
Family Model
27:20 19:16
00000000b 0001b
processor family.
Processor
Reserved
3
Type
15:14 13:12
00b
Family Model Stepping
4 5
Code Number ID
11:8 7:4 3:0
0110b 0111b XXXXb
TM
, or Enhanced Intel®
for the
6
15