Higher Thermal Power Loss Of Up To 130 Watts, Continued

Comparing the technical specifications of the Pentium 4 500, 600 and 800 series offers some interesting insights.

In the 800 series, the FORCEPR signal that forces a 14x multiplier is sent to the 6AK pin (marked in red here).

Interestingly, this pin is marked as reserved in the 500 and 600 series.

Socket 775: Intel Pentium 4, Pentium D and Pentium EE

We used the Gigabyte 8I955X-Royal with Intel's 955X chipset to test the Socket 775 CPUs. It supports a maximum memory speed of DDR2 1066 on FSB 1066.

Board: Gigabyte 8I955X Royal (Intel 955X)

RAM: Dual DDR2-533 up to 1066 (PC4300 to PC8500)

The MSI 945P Platinum based on Intel's 945D chipset was the platform of choice for testing the CPUs of the 500 and 600 series as well as the Extreme Edition.

Board: MSI 945P Platinum (Intel 945P)

RAM: Dual DDR2-533 and 800 (PC4300 to PC6400)

Article Links:

• Pentium 4 550, 540, 530, 520 and Pentium 4 EE 3.40 GHz
• Pentium 4 Extreme Edition 3.46 GHz (preview)
• Pentium 4 Extreme Edition 3.46 GHz (final)
• Pentium 4 570
• Pentium 4 660, 650 and Pentium 4 EE 3.73 GHz
• Pentium D 840 and Extreme Edition 840