Intel BX80569Q9550 - Core 2 Quad 2.83 GHz Processor Datasheet page 148

Table 6-1. Processor Information ROM Data (Sheet 5 of 6)
Sec # Offset Field Name
93 5Dh Processor Electronic
Signature
94 5Eh
95 5Fh
96 60h
97 61h
98 62h
99 63h
100 64h
101 65h Base Core Freq
102 66h
103 67h RESERVED (Intel®
Itanium® Processor
104 68h
9300 Series)
Uncore Frequency
(Intel® Itanium®
Processor 9500 Series)
105 69h RESERVED
106 6Ah Checksum
107 6Bh THERMALERT_N hot
assertion
108 6Ch THERMALERT_N hot
deassertion hysteresis
109 6Dh Maximum TDP
110 6Eh TCONTROL
111 6Fh
RESERVED
112 70h
113 71h Checksum
148
Data Type Description
16 Digit Hex 64 - bit identification number;
Number may have padded zeros.
4 bcd digits Base Core Frequency for this part
4 bcd digits Reserved for future use (Intel®
Itanium® processor 9300 series)
Nominal operating uncore
frequency in MHz
(Intel® Itanium® Processor 9500
Series)
Hex Reserved for future use
Hex Add up by byte and take 2's
complement
Thermal Reference
2 Hex digits Recommended THERMALERT_N
assertion threshold value
2 Hex digits Recommended THERMALERT_N
deassertion threshold value
2 Hex digits Thermal Design Power Max
2 Hex digits Default processor thermal
monitoring setpoint in C
Hex Reserved for future use
Hex Add up by byte and take 2's
complement
® ®
Intel Itanium Processor 9300 Series and 9500 Series Datasheet
System Management Bus Interface
Example
f = 1600 Mhz
65h = 00
66h = 16
67h = 0x00
68h = 0x00 (Intel®
Itanium® Processor
9300 Series)
2.4 GHz =
67h=0x00
68h=0x24
(Intel® Itanium®
Processor 9500 Series)
69h = 0x00
10C below PROCHOT_N
= 0x0A
2C deassert = 0x02
This indicates a
THERMALERT_N
deassert of 10C + 2C
=12C below
PROCHOT_N
185 W = 0xB9
5C below PROCHOT_N =
0x5
6Fh = 0x00
70h = 0x00