Nice to see though, kudos to the big 3 mobo producers.
| Date: 11/10/04 05:04:42 PM]
Mainboards Propose to Alter CPU Multiplier
[11/10/2004 02:29 PM]Leading mainboard makers, ABIT, ASUS, Gigabyte and MSI, propose to adjust multiplier settings of Intel’s central processing units in order to achieve higher system performance when overclocking on their latest breed of mainboards. However, not all the mainboards and not all the microprocessors can really benefit from the technologies.
Intel’s Pentium 4 processors based on the
CPU frequency is calculated by its multiplier multiplied on the processor system bus. While historically neither of those two constituents were strictly set, Intel has locked CPU multipliers in the late nineties for all of its Intel Pentium II, Intel Pentium III, Intel Pentium 4 and Intel Celeron processors. As a consequence, overclockers had to increase processor system bus to increase clock-speeds.
Since clock-speeds of AGP, PCI and PCI Express buses are determined by special dividers that divide clock-speed of PSB, overclocking of system bus stressed system components along with the chip itself, as PC infrastructure is also certified to work only on designated speeds of PCI, AGP and other buses. While some chipsets can dynamically adjust such dividers, locked CPU multiplier still somewhat restricted overclocking capabilities of microprocessors, particularly on Intel chipsets, which could not alter bus dividers without special tweaks from mainboard makers.
Thanks to the “multiplier indulgence” for the
ABIT calls it capability to unlock CPU multiplier “CPU Accelerator” and currently enables it, just like other manufacturers on Socket 775 mainboards based on i915- and i925X-series as well as on Socket 478 mainboards powered by i875P and i865PE chipsets.
Unfortunately, Intel’s latest stepping of
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