Specifications

PENTIUM® PRO PROCESSOR AT 150, 166, 180, and 200 MHz E
78
8.2.1. VENDOR CONTACTS FOR SOCKET 8
AND HEADER 8
Contact your local Intel representative for a list of
participating Socket 8 and Header 8 suppliers.
8.2.2. SOCKET 8 DEFINITION
Socket 8 is a 387-pin, modified staggered pin grid
array (SPGA), Zero Insertion Force (ZIF) socket.
The pinout is identical to the Pentium Pro processor.
Two pins are used to support the on-package
fan/heatsink included on the OverDrive processor
and indicate the presence of the OverDrive
processor. The OverDrive processor package is
oriented in Socket 8 by the asymmetric use of
interstitial pins. Standardized heat sink clip
attachment tabs are also defined as part of Socket 8
(Section 8.2.2.3.).
Airspace
Voltage
Regulator
Module
Fan/Heatsink
Socket 8
Header 8
Figure 45. Socket 8 Shown with the Fan/heatsink Cooling Solution, Clip Attachment Features and
Adjacent Voltage Regulator Module