S875WP1-E TPS
Functional Architecture
Revision 4.0
5
3. Functional
Architecture
This chapter provides a high-level description of the functionality distributed between the
architectural blocks of the Intel Server Board S875WP1-E.
3.1 Processor and Memory Subsystem
The Intel 82875P Memory Controller Hub (MCH) is one component of the Intel 875P chipset.
The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
accelerated hub architecture interface.
3.1.1 Processor
Support
The Intel Server Board S875WP1-E supports a single Pentium 4 processor (in a
µ
PGA478
socket) with a system bus of 400 /533 /800 MHz. The server board supports the processors
listed in Table 1.
Table 1. Processor Support Matrix
Type
Designation
System Bus
L2 Cache Size
Pentium® 4 processor with
Hyperthreading (HT) Technology
2.40, 2.60, 2.80, and 3.0 GHz
800 MHz
512 KB
Pentium 4 processor with
Hyperthreading Technology
3.06 GHz
533 MHz
512 KB
Pentium 4 processor
2.0, 2.26, 2.4, 2.53, 2.6, 2.66, and 2.8
GHz
400 / 533 MHz
512 KB
CAUTION
Use only the processors listed above. Use of unsupported processors can damage the board,
the processor, and the power supply. See the Intel® Server Board S875WP1-E Specification
Update or go to
http://support.intel.com/support/motherboards/server/S875WP1-E/
for the
current list of supported processors for this board.
NOTE
Use only ATX12V or EPS12V compliant power supplies with the server board S875WP1-E.
ATX12V and EPS12V power supplies have an additional power lead that provides required
supplemental power for the Intel Pentium 4 processor. The board will not boot if you do not
connect the 20-pin (or 24-pin) and 4-pin (or 8-pin) leads of ATX12V or EPS12V power supplies
to the corresponding connectors.
Do not use a standard ATX power supply. The board will not boot with a standard ATX power
supply.