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P4 2.2GHz Overclocked to 3.5GHz

Posted by CmdrTaco on from the never-underestimate-the-power-of-nitrogen dept.

GraveD sent linkage to a site explaining how a homemade nitrogen cooling system overclocked a P4 from 2.2Ghz to an incredible 3.5ghz. There's plenty of stuff to poke at over there. Update: 01/17 20:42 GMT by T : boaworm writes: "According to this paper, the Finnish geeks have successfully oveclocked a Pentium 4 to 3675 Mhz. They claim it is a new World Record, and it sure looks like they beaten another O/C'd Pentium 4 submitted earlier today on slashdot. (Summary in English in the end)."

2 of 620 comments (clear)

  1. Is 3.5 GHz enough? by 4of12 · · Score: 4, Interesting

    I've got a plot showing SPECint2000 vs SPECfp2000 for eight different chips, including the Pentium 4 2.0 GHz.

    From the looks of it, overclocking to 3.5 GHz might make the Pentium 4 almost equal in performance to the IBM Power4 running at 1.3 GHz.

    --
    "Provided by the management for your protection."
  2. Re:Those crazy Finns by staili · · Score: 4, Interesting

    Damn, you were faster. :)
    Here's that english summary from muropaketti:

    English summary!

    Today we cooled the new Intel Northwood 2,2GHz CPU with liquid nitrogen (LN2 -196C).

    The motherboard used in the tests was Asus P4B266 based on the Intel 845 chipset (DDR). There was a voltage modification on the motherboard which allowed the VCore to be raised as high as we needed. The memory module was Crucial PC2100 128MB and memory settings were the fastest possible (CAS 2 2-2-5).

    We used a copper bowl on top of the CPU and poured some LN2 into it. It took a while until the CPU temperature started to drop and when it was cold enough, we started the test.

    First test was run at 3300MHz (FSB 150MHz) and with no problem at all (VCore 1,9V). The next step was rather high but after raising Vcore to 2,05V Northwood worked stable at 3520MHz (FSB 160MHz). We went on with the tests and finally hit the limit.

    We were able to boot to Windows 2000 when the CPU clock frequency was 3675MHz (FSB 167MHz) but we couldn't run any benchmark programs. The highest STABLE CPU clock frequency we were able to reach was 3630MHz (FSB 165MHz). At 3650MHz we were able to run heavy benchmark programs such as SuperPi and Pifast successfully although the VCore was quite high (2,12V). It seems that Pentium 4 can handle it without any conflicts.

    Check out the pictures above

    I think the 3675MHz Wcpuid-shot we were able to get can be considered as the overclocking world record at this moment (17/01/2002), but I'm pretty sure the Japanese will try to beat it as soon as possible :-)

    BTW, Quake 3 Arena was quite fun to play when the CPU was running at 3500MHz! o_O