Does the Core i5-3330 have 2 or 4 cores?

By afshin 4841 ยท 11 replies
Dec 6, 2012
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  1. Hi guys, I have lately upgraded my pc to Core i5 3330 and Asus B75-V plus 4 GB ram 1600 MHz running win 7 32 bit, so far so good. In device manager and BIOS I can see the 4 cores available BUT task manager or CPU-Z just show 2 cores!!! and other softwares make use of 2 cores only.I've updated BIOS to the latest version(801) but nothing changed.
    Can win 7 or 8 64 bit or something have an effect?
    I'd appreciate it if you friends help me get out of the hell and tell me what's wrong with my PC.

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  2. slh28

    slh28 TechSpot Paladin Posts: 1,706   +172

    Dawn1113 and afshin 4841 like this.
  3. afshin 4841

    afshin 4841 TS Rookie Topic Starter

    Well, I've enabled any options related to CPU in BIOS actually with caution!!
    nothing changed!:oops:
  4. TechGamer

    TechGamer TS Guru Posts: 370   +40

    Seems like your cpu is defective if your bios is all intact trying using any default settings or to unplug the cpu out and replug it if it doesnt work u do have the warranty still dont u
    afshin 4841 likes this.
  5. Dawn1113

    Dawn1113 TS Booster Posts: 322   +65

    If you're sure all the pertinent BIOS settings are in order, and still your machine is running on two cores only, boot to Windows and click on the Boot tab under msconfig. Click on Advanced options. You should see a clickable box for Number of processors in the Boot advanced options interface. If this box is checked, uncheck it, and reboot.

    Hope that helps.
    afshin 4841 likes this.
  6. misor

    misor TS Evangelist Posts: 1,285   +243

    if the computer is in idle state, the other cores will be turned off.

    try to load a game, then click windows key so that the desktop will appear, then click cpu-z to see if the four cores appear together.

    I think there was an article somewhere debunking the claims that checking/increasing the number of processors in the boot advanced options have no direct influence regarding the responsiveness of windows OS.
    afshin 4841 likes this.
  7. afshin 4841

    afshin 4841 TS Rookie Topic Starter

    Thanks everybody for ur help.Finally I overcame the problem.After Installing Win 7 64bit, all 4 cores appeared:p. But I thinks that's because of the clean installation of WIN not only the 32 or 64 bit ver. weird isn't it?
  8. Cinders

    Cinders TechSpot Chancellor Posts: 872   +12

    afshin 4841 likes this.
  9. captaincranky

    captaincranky TechSpot Addict Posts: 13,033   +2,558

    No, the "eccentric" part, is thinking you need CPU-Z to check out what Windows believes is the installed CPU.

    Windows "Task Manager" (Ctrl + Alt + Del) will give you a core quantity and activity trace , when you click on the "Performance" tab.

    Give it a break, Windows can do some stuff pretty darned well.

    As something to ponder, it would have been interesting to try a repair installation of the 32 bit OS to see if all four cores would have been detected.

    I've never seen Windows fail to detect a CPU correctly, at least in the few machines I've built. Nor have I ever had to change any settings in BIOS relating to a CPU's core/ thread count.

    Quite a while back though, there was a Windows update for old AMD quads, (possibly dual cores ?), that weren't being detected as such.

    . I have a teeny tiny semantic issue with your choice of wording. The CPU in question is a quad core, WITHOUT hyperthreading. So, it has 4 cores which equals 4 threads.

    This is important to this discussion because, a CPU with hyperthreading, will show the extra threads, as extra cores.

    As an example, Windows will show an i3-530 (2 cores with hyperthread) as a 4 core CPU. It will show an I-7 2700K as an eight core CPU.

    This may be nitpicking, but I think it adds a bit of clarity.
    afshin 4841 likes this.
  10. cliffordcooley

    cliffordcooley TS Guardian Fighter Posts: 9,738   +3,706

    I decided to change my shortcut habit in Windows 7 because "Ctrl + Alt + Del" initializes the login screen. I started right-clicking on the task-bar then selecting "Start Task Manager", which I had never noticed was available in Windows XP.
    afshin 4841 and captaincranky like this.
  11. captaincranky

    captaincranky TechSpot Addict Posts: 13,033   +2,558

    Aye, so it does! Not to mention bypassing all of those other silly choices.

    I just recently got the hang of "Ctrl + B" in Firefox to toggle the sidebar. I use one machine with a vertical monitor, and that sidebar was reeeaaally annoying....:confused: (Old and set in my ways, I suppose).
  12. slh28

    slh28 TechSpot Paladin Posts: 1,706   +172

    Ctrl+Shift+Esc is even better ;) Works on 7 and XP.
    cliffordcooley likes this.

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