Sunday, February 13, 2005

Intel’s Pentium 4 570J Processor Overclocked to 7.22GHz. Overclocker Hits 7.22GHz Clock-Speed With Intel Pentium 4 570J

5:04 am | Yaroslav Lyssenko

While Intel Corp. scrapped plans to introduce its Pentium 4 processors with 4.00GHz clock-speed, enthusiasts keep on pushing the clock-speeds of Intel’s chips to rather brutal frequencies beyond any bold expectations. On Saturday Charles Wirth, also known as Fugger by the overclocking community, managed to push his Intel Pentium 4 processor to extreme 7.20GHz.

In order to conduct the extreme overclocking Fugger of XtremeSystems web-site used DFI 925XE-T2V mainboard based on Intel’s i925XE core-logic, OCZ Technology PC4200 EB R2 Platinum memory modules as well as Intel Pentium 4 570J processor with stock speed of 3.80GHz. Processor system bus was overclocked nearly to the factor of two – to 1520MHz; processor’s voltage was pumped up to 1.95V, tremendously higher than default 1.287V-1.400V voltage; memory latency settings were CL4 2-2-8, memory voltage was set to 2.3V from stock 1.9V.

The system could boot Microsoft Windows XP operating system and perform memory testing at 6.60GHz with 1400MHz processor system bus. With PSB exceeding 1400MHz range the computer could not boot because of HDD controller issues. With 7.20GHz the machine worked stably in BIOS setup.

It is unknown which cooling system was used in particular case, but usually such extreme overclocking experiences are performed with nitrogen cooling.

• XtremeSystems: Fugger Breaks 7.20GHz!
• XtremeSystems: DFI 925XE-T2V @ 7.2GHz.
• X-bit labs: Enthusiasts Run Intel Pentium 4 at 6.20GHz.
• X-bit labs: Intel Scraps Plans for 4.00GHz Desktop Microprocessors.

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