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With the release of BIOS version P19, the microcode is removed for the Intel® Pentium® 4 and Intel® Celeron® processors based on the 0.18 micron process due to BIOS space constraints. BIOS microcode support was retained through BIOS version P18.
If you are using the above processors, you should NOT update to BIOS version P19. The complete version number is VA84510A.86A.0052.P19.
- The 0.18 micron Intel Pentium 4 processor range is between 1.30 GHz and 2.0 GHz, with 400 MHz system bus and 256 KB L2 cache size.
- The 0.18 micron Intel Celeron processor range is between 1.70 GHz and 1.8 GHz, with 400 MHz system bus and 128 KB L2 cache size.
To identify the processor type on your system, you can download an Intel® Processor Identification utility. If the utility identifies your processor in the range stated above, it is advised that the system BIOS remain at P18 and below.
Related Topic:
Supported Processors
This applies to:
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