Vol 1

Intel® Xeon® Product 2800/4800/8800 v2 Product Family 183
Datasheet Volume One, February 2014
PIROM
Example: A processor with a part number of AT80604******** will have the following
data found at offset 38-3Eh: 41h, 54h, 38h, 30h, 36h, 30h, 34h.
9.3.6.2 PSN: Processor SKU Number
This location contains eight ASCII characters reflecting the Intel® SKU number for the
processor. Added to the end of the Processor Family Number above, this is the
complete processor part number. This information is typically marked on the outside of
the processor. If the part number is less than 15 total characters, a leading space is
inserted into the value. The part number should match the information found in the
marking specification. Writes to this register have no effect.
Example: A processor with a part number of *******003771AA will have the following
data found at offset 58-62h: 30h, 30h, 33h, 37h, 37h, 31h, 41h, 41h.
Offset: 54h-5Ah
Bit Description
55:48 Character 7
ASCII character or 20h
00h-0FFh: ASCII character
47:40 Character 6
ASCII character or 20h
00h-0FFh: ASCII character
39:32 Character 5
ASCII character or 20h
00h-0FFh: ASCII character
31:24 Character 4
ASCII character
00h-0FFh: ASCII character
23:16 Character 3
ASCII character
00h-0FFh: ASCII character
15:8 Character 2
ASCII character
00h-0FFh: ASCII character
7:0 Character 1
ASCII character
00h-0FFh: ASCII character
Offset: 5Bh=62h
Bit Description
63:56 Character 8
00h-0FFh: ASCII character
55:48 Character 7
ASCII character or 20h
00h-0FFh: ASCII character
47:40 Character 6
ASCII character or 20h
00h-0FFh: ASCII character