The Intel Performance Acceleration Technology (PAT) is technology built onto Intel i875 Canterwood

mainboard A motherboard (also called mainboard, main circuit board, mb, mboard, backplane board, base board, system board, logic board (only in Apple computers) or mobo) is the main printed circuit board (PCB) in general-purpose computers and other expand ...

s and other Pentium 4 based

motherboard A motherboard (also called mainboard, main circuit board, mb, mboard, backplane board, base board, system board, logic board (only in Apple computers) or mobo) is the main printed circuit board (PCB) in general-purpose computers and other expand ...

s that based on the Intel D875PBZ reference board. Performance Acceleration Technology delivers additional system-level performance by optimizing memory access between

CPU A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, and ...

and system memory, allowing increased performance to be exhibited at standard operating specification. There are three types of Performance Mode: Disabled, Partially enabled, and fully Enabled. There may be

BIOS In computing, BIOS (, ; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the ...

settings that affect this parameter. The PAT status is reported by some versions of

Memtest86 MemTest86 and Memtest86+ are memory test software programs designed to test and stress test an x86 architecture computer's random-access memory (RAM) for errors, by writing test patterns to most memory addresses, reading back the data, and com ...

and

CPU-Z CPU-Z is a freeware system profiling and monitoring application for Microsoft Windows and Android that detects the central processing unit, RAM, motherboard chip-set, and other hardware features of a modern personal computer or Android device. ...

, and at boot time by Dell motherboards. Asus managed to turn this same feature on, on their 865PE chipset based boards but called it "Memory Acceleration Mode" (MAM) to avoid infringement issues.

References

* * Computer hardware tuning Intel products {{Compu-hardware-stub