Features
Offset/
Section
# of
Bits
Function
Notes
1 byte checksum
Examples
1Ah
8
Checksum
Add up by byte and take 2’s
complement
Processor Core Data
1B-1Ch
1D-1Eh
1F-20h
16
16
16
CPUID
Four 4-bit hex digits
Reserved
Reserved for future use
0000h
1
Maximum P1 Core Frequency
Non-Turbo Boost (Mhz)
2000h = 2000 MHz
Four 4-bit hex digits (Mhz)
1
21-22h
16
Maximum P0 Core Frequency
Turbo Boost (Mhz)
2400h = 2400 MHz
Four 4-bit hex digits (Mhz)
1
23-24h
25-26h
27h
16
16
8
Maximum Core Voltage ID
Minimum Core Voltage ID
Core Voltage Tolerance, High
Four 4-bit hex digits (mV)
Four 4-bit hex digits (mV)
1500h = 1500 mV
1
1000h = 1000 mV
1
Allowable positive DC shift
Two 4-bit hex digits (mV)
15h = 15mV
1
28h
29h
8
8
Core Voltage Tolerance, Low
Checksum
Allowable negative DC shift
Two 4-bit hex digits (mV)
15h = 15mV
1 byte checksum
Add up by byte and take 2’s
complement
Processor Uncore Data
1
2A-2Bh
16
Maximum Intel QPI Link Transfer
Rate
Four 4-bit hex digits (in MT/s)
Four 4-bit hex digits (in MT/s)
6400h = 6400 MT/s
5866h = 5866 MT/s
1
1
2C-2Dh
16
Minimum Intel QPI Link Transfer
Rate
4800h = 4800 MT/s
2E-31h
32h
32
Intel QPI Version Number
Intel TXT
Four 8-bit ASCII Characters
First seven bits reserved
01.0
7/1
00000001 = supported
00000000 = unsupported
1
33-34h
16
Maximum Intel SMI Transfer Rate Four 4-bit hex digits (in MT/s)
6400h = 6400 MT/s
5866h = 5866 MT/s
1
35-36h
37-38h
39h
16
16
8
Minimum Intel SMI Transfer Rate Four 4-bit hex digits (in MT/s)
4800h = 4800 MT/s
1
VIO Voltage ID
Four 4-bit hex digits (mV)
1125h = 1125 mV
1
VIO Voltage Tolerance, High
Edge finger tolerance
15h = 15 mV
Two 4-bit hex digits (mV)
1
3Ah
8
VIO Voltage Tolerance, Low
Edge finger tolerance
15h = 15 mV
Two 4-bit hex digits (mV)
3B-3Eh
3F-40h
41-42h
32
16
16
Reserved
Reserved for future use
Decimal (Kb) Per CPU Core
Decimal (Kb)
00000000h
L2 Cache Size
L3 Cache Size
0100h = 256 Kb
6000h = 24576 Kb, 4800h =
18432 Kb, 3000h = 12288 Kb
1
43-44
45h
16
8
Cache Voltage ID
Four 4-bit hex digits (mV)
1500h = 1500 mV
1
Cache Voltage Tolerance, High
Allowable positive DC shift
Two 4-bit hex digits (mV)
15h = 15 mV
1
46h
8
Cache Voltage Tolerance, Low
Allowable negative DC shift
Two 4-bit hex digits (mV)
15h = 15 mV
47-4Ah
4Bh
32
8
Reserved
Reserved for future use
1 byte checksum
00000000h
Checksum
Add up by byte and take 2’s
complement.
Package
4C-4Fh
50h
32
6/2
16
8
Package Revision
Substrate Revision Software ID
Reserved
Four 8-bit ASCII characters
First 6 bits reserved
Reserved for future use
1 byte checksum
01.0
000000**
0000h
51-52h
53h
Checksum
Add up by byte and take 2’s
complement.
Datasheet Volume 1 of 2
147
INTEL [ INTEL ]
