WARNING: This information is provided "as is" with no warranty. Use at your own risk!
This site is NOT affiliated with PB.

PB410/420 Memory 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.

Memory Specifications

  1. SIMM speed must be 70ns or 80ns.
  2. The SIMM's are 72-pin and can be x32 or x36. The motherboard design does not require parity checking, hence x32 SIMMs can be purchased (they are less expensive).

Component Locations

Upgrade Table
This table takes 128k Shadow Ram into consideration when providing the total for Extended Memory. Example: 1280k =2048k - (640k + 128k)

Note
The motherboard with 4MB surface mount memory will not accept 2MB SIMMs.

Purchase Referrals
For information on obtaining additional memory modules for this system, please contact Packard Bell end user Service (801) 579-0160.