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Thread: "Windows Performance" cpu score went down, from E8400 to i5 2500k

  1. #1

    Question "Windows Performance" cpu score went down, from E8400 to i5 2500k

    Based on previous conversations here, this weekend I upgraded from an old Gigabyte board and an E8400 to a new Gigabyte LGA 1155 board, an i5 2500k, 8 gigs of DDR3, etc.

    Everything seems to be running fine. But when I run Win7's "windows performance" application, it shows that my CPU score actually went down-- from 6.6 (the E8400) to 5.6 (the i5). What's going on here?? The i5 is listed correctly in the My Computer info in model number, frequency, etc.; is there any other way to make sure it's running as it should?

    Now, I understand that the Performance index shouldn't be the end-all... But it's more than a little concerning that the score for the i5 dropped so much from an older cpu. I'd like to diagnose why it's giving me that result, and fix it.

    This is my current system now, for reference:

    Motherboard: Gigabyte Z68AP-D3
    CPU: Intel i5 2500k @ 3.3 Ghz
    RAM: Corsair XMS3 DDR3 8 GB total (2 x 4gb)
    Video: EVGA GeForce 560 Ti (1 GB)
    PSU: Silencer 750EPS12V
    Case: CoolerMaster Centurion 5 CAC-T05-UW
    OS: Windows 7 x64
    Visuals: Dell flatscreen @ 1280x1024

    Thanks,
    m19
    Last edited by Morgan19; 11-21-2011 at 12:08 PM.

  2. #2
    Join Date
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    To be honest, I wouldn't worry too much about the Windows Experience Index. As long as there's a discernible improvement in the overall operations of your PC, I would ignore it.
    "An ounce of prevention is worth a pound of cure" ~ Ben Franklin

  3. #3
    ^ I was expecting that type of reply at some point, but it turns out my investigation was spot-on. Somehow the settings in msconfig's Boot section were set to "Number of processors: 1"; removing that limitation has bumped the score up to 7.5 and, thus, put my system where it should be.

    See, WEI isn't completely useless.

    m19
    Last edited by Morgan19; 11-21-2011 at 12:35 PM.

  4. #4
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    So Windows needs a fresh install after a processor swap, these days?
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  5. #5
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    I would say yes Windows needs a fresh install after a processor swap if it included a motherboard swap too.

    If he had just swaped an E8400 for say a Q9650 I would say no he would not need to reinstall Windows.

    He changed from a socket LGA775 E8400 and Intel P45 chipset to a socket LGA1155 i5 2500k and Z68 chipset.
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  6. #6
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    Quote Originally Posted by rond36 View Post
    He changed from a socket LGA775 E8400 and Intel P45 chipset to a socket LGA1155 i5 2500k and Z68 chipset.
    True...which leads me to wonder...are there other problems in the wings without a fresh install.

    A clean install should have detected to correct number of processors/cores.
    AV, Anti-Trojan List;Browser and Email client List;Popup Killer List;Portable Apps
    “When men yield up the privilege of thinking, the last shadow of liberty quits the horizon.” - Thomas Paine
    Remember: Amateurs built the ark; professionals built the Titantic."

  7. #7
    A fresh install because of one screwy setting? You guys must have a lot more spare time than I do... Everything else is working fine after I caught that, so I don't think it warrants a "reinstall every time you upgrade" conclusion, no.

    m19

  8. #8
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    Your time is yours to do with what you will...but, since at least Win95, a fresh reinstall, after an upgrade (especially chipset/motherboard change) has been the best time saver, in the long run.
    AV, Anti-Trojan List;Browser and Email client List;Popup Killer List;Portable Apps
    “When men yield up the privilege of thinking, the last shadow of liberty quits the horizon.” - Thomas Paine
    Remember: Amateurs built the ark; professionals built the Titantic."

  9. #9
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    fresh install everytime you change anything (almost)............but extremely for sure with CPU's/HDD's/MB..................don't want to screw the BIOS up

    to easy to do...........
    Win8.1/HAF X/CM 1000W/Z77X-UD5H/3770k/32g G Skill/GTX780/Vertex3 120g/WD 500 Blk/WD 1T Blk
    Win7/CM Centurion/650W/Z77X-UD3H/2500k/16g Kingston/HD6870/Vertex2 90g/WD 500 Black
    Win7/modded mid-case/725W/UP45-UD3R/Q6600/8g Kingston/HD6870/WD 1T Blk/WD 500 Blk

    doesn't keep me up nights, no siree

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