Datasheet

Intel Desktop Board D865PERL Technical Product Specification

1.5 Processor

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NOTE

Refer to Thermal Considerations (Section 2.12, page 80) for important information when using an

Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board.

The board is designed to support the following:

• Intel Pentium

4 processors in an mPGA478 processor socket with a 400/533/800 MHz

system bus

• Intel Celeron processors with a 400 MHz system bus

See the Intel web site listed below for the most up-to-date list of supported processors.

For information about… Refer to:

Supported processors for the D865PERL board http://www.intel.com/design/motherbd/rl/rl_proc.htm

CAUTION

Use only the processors listed on web site above. Use of unsupported processors can damage the

board, the processor, and the power supply.

INTEGRATOR’S NOTES

• Use only ATX12V-compliant power supplies with the board. ATX12V power supplies have an

additional power lead that provides required supplemental power for the processor. Always

connect the 20-pin and 4-pin leads of ATX12V power supply to the corresponding connectors,

otherwise the board will not boot.

• Do not use a standard ATX power supply. The board will not boot with a standard ATX power

supply.

• Refer to Table 4 on page 21 for a list of supported system bus frequency and memory speed

combinations.

For information about Refer to

Power supply connectors Section 2.8.2.2, page 63