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Desktop Board Features
11
Processor
CAUTION
Failure to use an ATX12V power supply, or not connecting the additional power supply lead to
Desktop Board D845GRG or D845GBV may result in damage to the desktop board and/or power
supply.
Desktop Boards D845GRG and D845GBV support a single Intel Pentium 4 processor or Intel
Celeron processor. Processors are not included with the desktop board and must be purchased
separately.
The processor connects to the Intel desktop board through the mPGA478-pin socket. The Intel
Pentium 4 processor and Intel Celeron processor may be removed and replaced to accommodate
supported higher speed processors.
Desktop Boards D845GRG and D845GBV support the processors listed in Table 2.
Table 2. Supported Processors
Type Designation Front Side Bus Frequency L2 Cache
Intel Pentium 4 processor on .13
micron process in an mPGA-478
package
2.40B and 2.26 GHz 533 MHz 512 KB
Intel Pentium 4 processor on .13
micron process in an mPGA-478
package
2.40, 2.20A, 2A, 1.80A,
and 1.60A GHz
400 MHz 512 KB
Intel Pentium 4 processor on .18
micron process in an mPGA-478
package
2, 1.90, 1.80, 1.70, 1.60,
and 1.50 GHz
400 MHz 256 KB
Intel Celeron processor in an
mPGA-478 package
1.8 and 1.7 GHz 400 MHz 128 KB
For the latest information on processor support for Desktop Boards D845GRG and D845GBV,
refer to the Intel World Wide Web site at:
http://support.intel.com/support/motherboards/desktop/
For instructions on installing or upgrading the processor, see Chapter 2 on page 21.
Desktop Boards D845GRG and D845GBV require an ATX12V compliant power supply to
function according to desktop board specifications. Both boards have two ATX12V compliant
power supply connectors that are needed to provide extra power to the Intel 845G chipset and Intel
Pentium 4 processor or Intel Celeron processor.
Items B and D in Figure 15 on page 66 show the two power connector locations.