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PB410/420 Processor Upgrade

Warning Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.
 
Math Co-Processor Specifications Intel has changed the designations of the 80486 OverDrive processors. In the table below, the original designations are in parenthesis. Component Locations The upgrade processor installs in the Zero Insertion Force (ZIF) socket at location U45.

Upgrade Table

Note

1. Revision C.0 motherboards may have the CPU installed in the upgrade socket (U45) instead of the CPU socket (U47), and will have to be removed in order to upgrade.
 
 
2. This motherboard will accommodate the P24T processor. Upgrade the BIOS to 1.01.24 or 1.01.25 before installing the P24T. 
Intel refers to the P24T as the Pentium OverDrive Processor or PODP
 
 

Note
The DX4-120 CPU requires a 486 system to be able to run at 40 MHz clock speed. None of our motherboards have been qualified to run at that speed. However, they will run at 33 MHz which will yield 100 MHz DX4 speed. Purchase Referrals End users should contact Intel at (800) 538-3373 for a referral to a dealer who handles Intel products.