[H]ardOCP have thrown up a new article which looks at overclocking the Intel Prescott 2.8E processor with results on different boards! Here's a snip.
We are always looking for an investment that we can push beyond its specified limits, gaining performance and having a bit of fun in the process. Intel was kind enough to launch Prescott core CPUs ranging from 2.8GHz to 3.4GHz last week. With help from Azzo Computers, we were able to take delivery of a real-world 2.8GHz Prescott just like one you would buy. It is these CPUs that we like to do our enthusiast testing with as we rely on them to give us a look at the real world of overclocking. Above is our Pentium 4 "2.8E." The "E" in the part number designates the CPU as being built using a 90nm process. Default voltage is 1.36V and of course it comes with the noted SSE3 instruction set. It comes in a 478-pin package that we are used to and most motherboard builders are advertising their past i875 and i865 motherboards as being "Prescott Ready" and as you will see below, some are and some are not. This is an OEM processor, meaning that it is sold without retail packaging and only come with a 30 day warranty...which we immediately voided. Its multiplier is locked like other retail and OEM Intel CPUs, with the 2.8E having a setting of "14" (14*200=2800MHz). The multiplier limitation allows us to only overclock the CPU by manipulation of the CPU's Front Side Bus.
Overclocking the Prescott 2.8E
We are always looking for an investment that we can push beyond its specified limits, gaining performance and having a bit of fun in the process. Intel was kind enough to launch Prescott core CPUs ranging from 2.8GHz to 3.4GHz last week. With help from Azzo Computers, we were able to take delivery of a real-world 2.8GHz Prescott just like one you would buy. It is these CPUs that we like to do our enthusiast testing with as we rely on them to give us a look at the real world of overclocking. Above is our Pentium 4 "2.8E." The "E" in the part number designates the CPU as being built using a 90nm process. Default voltage is 1.36V and of course it comes with the noted SSE3 instruction set. It comes in a 478-pin package that we are used to and most motherboard builders are advertising their past i875 and i865 motherboards as being "Prescott Ready" and as you will see below, some are and some are not. This is an OEM processor, meaning that it is sold without retail packaging and only come with a 30 day warranty...which we immediately voided. Its multiplier is locked like other retail and OEM Intel CPUs, with the 2.8E having a setting of "14" (14*200=2800MHz). The multiplier limitation allows us to only overclock the CPU by manipulation of the CPU's Front Side Bus.
Overclocking the Prescott 2.8E
