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Table 17-7. OverDrive
OverDrive
®
Processor T A , Max (°C)
OverDrive VRM Θ CA (°C/W)
The following specifications apply to the future OverDrive processor for 150 MHz Pentium
based systems:
OverDrive VRM T A , Max (°C) 2
The following specifications apply to the future OverDrive processor for 166 & 180 MHz Pentium Pro
processor-based systems:
OverDrive VRM T A , Max (°C)
The following specifications apply to the future OverDrive processor for 200 MHz Pentium Pro processor-
based systems:
OverDrive VRM T A , Max (°C)
NOTES:
1. Airflow direction parallel to long axis of VRM PCB.
2. T CASE = 105°C, Power as per Table 17-6.
17.6.
CRITERIA FOR OVERDRIVE
This section provides PC system designers with information on the engineering criteria required
to ensure that a system is upgradable. The diagrams and checklists will aid the OEM to check
specific criteria. Several design tools are available through Intel field representatives which will
help the OEM meet the criteria. Refer to Section 17.6.1., "Related Documents".
The criteria are divided into 5 different categories:
•
Electrical Criteria
•
Thermal Criteria
•
Mechanical Criteria
•
Functional Criteria
•
End User Criteria
OVERDRIVE® PROCESSOR SOCKET SPECIFICATION
®
Processor Thermal Resistance and Maximum Ambient
Temperature
Airflow - Ft./Min (M/Sec) 1
100
150
(0.50)
(0.75)
Fan/Heatsink requires Ambient of 50°C or less
regardless of external airflow.
9.8
8.3
46
55
41
51
36
47
®
PROCESSOR
200
250
(1.01)
(1.26)
(1.52)
6.8
6.4
®
Pro processor-
64
67
61
63
57
60
300
6.0
69
66
63
17-19
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