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E
OverDrive ® VRM Clearance and
8.6.4.2.
Airspace Requirements
Refer to Figure 50 for a drawing of the various
clearance
and
airspace
OverDrive VRM. Nothing must intrude into the space
envelope, including airspace region, defined in
Figure 50 with the exception of Header 8 itself.
8.6.5.
FUNCTIONAL CRITERIA
The OverDrive processor is intended to replace the
original Pentium Pro processor. The system must
Criteria
Software
Compatibility
BIOS Functionality
8.6.5.2.
BIOS Functionality
The BIOS must continue to operate correctly with the
OverDrive processor installed in the system. Always
use the CPU Signature and Feature flags to identify if
an OverDrive processor is installed. Please refer to
the Pentium
®
Pro Processor Developer's Manual:
Volume 3, Programmer's Reference Manual: (Order
Number 242691) for the BIOS recommendations.
8.6.6.
END USER CRITERIA
8.6.6.1.
Qualified OverDrive
Components
To ensure processor upgradability, a system should
employ
the
following
processor components. For a list of qualified
components contact your Intel sales representative,
or if in the US, contact Intel FaxBACK Information
Service at (800) 525-3019.
•
Genuine Intel OEM CPU
PENTIUM® PRO PROCESSOR AT 150, 166, 180, and 200 MHz
requirements
of
the
Table 42. Functional Test Criteria
Refer To:
No incompatibilities resulting from upgrade installation.
•
Section 8.3.3.
•
•
®
Processor
Intel-qualified
OverDrive
boot properly without error messages when the
OverDrive processor is installed.
8.6.5.1.
Software Compatibility
System hardware and software that operates
properly with the original Pentium Pro processor
must operate properly with the OverDrive processor.
Comment
CPU Type Reported on Screen must be reported
correctly or not at all. Intel recommends reporting
"OverDrive Processor".
Never Use Timing Loops.
Do not test the cache, or use model specific registers
when the upgrade is detected.
•
Socket 8, 387-hole ZIF
•
Header 8, 40-pin shrouded (Systems and
Motherboards employing Header 8 solution
only.) OR programmable voltage regulator
capable of providing the voltage and current
required by the OverDrive processor.
8.6.6.2.
Visibility and Installation
Socket 8 and Header 8 must be visible upon removal
of the system cover. Otherwise, the OEM must
include diagrams or other indicators visible upon
removal of the system cover or clear instructions in
the user's manual to guide the end user to the CPU
socket and the VRM header. Special tools, other
than a screw driver, must not be required for an
upgrade installation.
95
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