Packard Bell PB450

Also known as: Packard Bell LEGEND-CD 486SX system board  |  Packard Bell Firehawk  |  Zenith Z-Select 100XE

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Form factor:
PSU connector: AT-Style (P8-P9)
Chipset: OPTi 82C895 (System/Power Management Controller (cached)) [82C895]
Dimensions: 254mm x 218mm
CPU platform: 486
Supported FSB speeds: 25MHz 33MHz
Cache: 128 KB 512 KB
Supported RAM size: 64 MB
Supported RAM types: 72-pin FPM
Video Chipset: Cirrus Logic GD5428 (2MB max VRAM)
I/O ports: Expansion slots: Known issues:
  • 1x Floppy interface
  • 2x IDE interface
  • 1x PS/2 keyboard
  • 1x PS/2 mouse
  • 1x Parallel
  • 2x Serial
  • 1x VGA
  • 1x 16-bit ISA



Name of the jumper: Jmul J29 Pins 1-2 other, pins 2-3 2x, open 3x For Intel P24T (Pentium Overdrive), the Interposer is required. An Interposer can be obtained from Intel or from the dealer. Please note that the Interposer will disable the 2nd level cache. For the P24T-83, you may also need to update the BIOS to version 1.1a

Last updated: 2022-05-14T08:16:32Z
Drivers: not available
BIOS images: 2 files
Manuf. POST String Note Core Ver. BIOS Ver.
Phoenix P4HS20
Phoenix 4.03 1.1a
Documentation: 2 entries
Model Speed FSB Voltages L1 Cache L2 Cache L3 Cache Core Process TDP
Intel i486 SX 33 33MHz 33MHz 5V 8KB - - P23 1000nm -
Intel i486 DX 33 33MHz 33MHz 5V 8KB - - P4 1000nm -
Intel i486 SX 25 25MHz 25MHz 5V 8KB - - P23 1000nm -
Intel i486 DX 25 25MHz 25MHz 5V 8KB - - P4 1000nm -
No NPUs listed.