From Gabriel Torres and Daniel Barros,
"On Intel i915P, and i925x chipsets, Intel created a protection against overclocking, making Pentium 4 processors overclocking extremely difficult."
Read the article.
Depends on which Intel motherboard chipset series you are talking about, and what in your mind constitutes a 'higher end CPU', for it.
Let's look at the Intel 915 series, and Intel 945 series of motherboard chipsets,http://en.wikipedia.org/wiki/List_of_intel_chipsets#Pentium_4.2FPentium_D.2FPentium_EE_chipsets
Let's start with the Intel 82915P through Intel 82915GV chipsets;
The highest FSB support is 800MegaHertz (Frequency rate)
Highest core technology is Pentium 4, SINGLE-core processors.
Although the Pentium 4's used may use the Socket T processor socket, (LGA 775), the chipsets will not support dual core Intel processors.
I have to 'bring you up to speed'. This is the easiest way to do it, IMHO,
Now it breaks down to individual Intel Northbridge chipset versions.
[Wait. One, more primer in case you are not aware;
Chip and Chipset are slang terms for I.C.
The motherboard chipset for the chipset series you have listed, uses a Northbridge chip, and a Southbridge chip.http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg
The Northbridge chip handles the faster capabilities of a computer.
Handles the Processor, Ram Memory, and HIGH-speed graphics.
A graphics card installed in a PCI expansion slot, is NOT high-speed graphics.
Integrated graphics is NOT high-speed graphics.
High-speed graphics is AGP, and PCI-Express.
The Southbridge chip handles the slower capabilities of a computer.
Handles anything installed in a;
1) PCI Bus: Whether it is in a PCI expansion slot, or Integrated Graphics attached to a PCI Bus.
2) IDE Bus:
3) SATA Bus:
4) USB Bus:
6) Audio (Sound)
The Northbridge for Intel is the MCH. Memory Controller Hub.
Continued in a Comment.