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Dual cores mysteriously running at low speeds

After reformatting my pc today, I found that Crysis was suddenly running super choppy on the high settings on my Core2Duo 2.4, e-vga 8800GTS, whereas it ran great beforehand. A quick "optimal settings" check bumped it to Medium, which struck me as odd.

So I run a quick Intel Processor ID utility, which tells me that each core was running at 1.19 ghz and the system bus (expected: 1066 MHz) was set at 531 mhz for each core.

That seemed odd to me, as I thought that EACH core was supposed to be 2.4, not with each core COMBINING for a total of 2.4.

So I ran CPU-Z, which told me I have a core speed of 798.1 mhz.

What the hell do I do?

FireWeasel on
AC:CL Wii -- 3824-2125-9336 City: Felinito Me: Nick

Posts

  • jackaljackal Registered User regular
    Just off the top of my head I would look into the core2's thermal safe guards. Maybe it got too hot, and dropped the clock speed.

  • Dublo7Dublo7 Registered User regular
    This has happened to me as well. Although I'm not getting the choppy behaviour.
    CPU-Z shows my 2.2ghz Core 2 Duo as 1200mhz. Strange.

    [SIGPIC][/SIGPIC]
  • FireWeaselFireWeasel Registered User
    jackal wrote: »
    Just off the top of my head I would look into the core2's thermal safe guards. Maybe it got too hot, and dropped the clock speed.

    But the thing is this only happened after I formatted. Prior to, it was working just fine.

    AC:CL Wii -- 3824-2125-9336 City: Felinito Me: Nick
  • PrimesghostPrimesghost Registered User regular
    Did you, by any chance, make any changes to the BIOS? Many BIOS settings let you manually set the bus speed on your processor and if it's not set right then you have issues like this one. Try flashing the BIOS to the latest. Beyond that, make sure you have all the latest drivers for your system, especially the chipset driver.

  • redimpulseredimpulse Registered User
    I have a Core2 6300 1.86 MHz, each at 1600 MHz (close enough)

    You may need to run an update on your chipset drivers.

    rbsig.jpg
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