Best CPU for LGA775 for an Intel Q35 Express chipset?

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  1. Posts : 5,183
    Windows 11 Home
       #41

    rambomhtri said:
    The original power supply unit is 280W. I've checked it and under a full load prime95 + furmark, I get between 160-180W usage. I still have room for 100W, what?
    Whatever gave you that idea? I assume it is no-name brand, considering, it is only 280W, so it has the effectivity 70% at best, meaning, if components are taking 180W, it is actually drawing around 240W from the outlet and that might be its peak. You can use some outlet wattage meter to be sure. For example, low quality 500W PSU can run at 450W, but it might burn at 500W (showed in some tests). High quality 500W PSU could even run at 600W. You should get something around 500W, that should be able to handle anything (with one GPU, even high-end), a cheap one would do, but preferably a reliable brand like Forton.

    How does PSU efficiency affect me and do I really need an 80 Plus Gold Power Supply?
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  2. Posts : 191
    Windows 10 Home
    Thread Starter
       #42

    muchomurka said:
    Congrats.
    CPU Frequency: Task Manager reports wrong values, use CPU-Z. Under load, it should look similar to this:
    Attachment 249733
    Check Core Speed, Multiplier, Bus Speed & FSB values - they can depend on BIOS settings.
    Yeah, you're right, check again my message, I edited it. Yes, I get those CPU-Z specs, but read my message edited, come people have different values. Would a re-install of W10 fix the Task Manager bug? It's really annoying to have that wrong.
    TairikuOkami said:
    Whatever gave you that idea? I assume it is no-name brand, considering, it is only 280W, so it has the effectivity 70% at best, meaning, if components are taking 180W, it is actually drawing around 240W from the outlet and that might be its peak. You can use some outlet wattage meter to be sure. For example, low quality 500W PSU can run at 450W, but it might burn at 500W (showed in some tests). High quality 500W PSU could even run at 600W. You should get something around 500W, that should be able to handle anything (with one GPU, even high-end), a cheap one would do, but preferably a reliable brand like Forton.

    How does PSU efficiency affect me and do I really need an 80 Plus Gold Power Supply?
    No, no, no, those 160-180W of power I'm talking about are referring to the outlet, it's not a software program, it's a power meter I have. The PSU is using about 170W under full load CPU + GPU, and then the PC itself must be using a percentage of that. So, I have 100W room for sure, unless the manufacturer is lying about the PSU specs, which I believe it's not legal, specially if we are talking about a DELL PC, not a no-brand chinese PC.

    "You should get something around 500W, that should be able to handle anything (with one GPU, even high-end), a cheap one would do, but preferably a reliable brand like Forton."
    What? I use under full load 170W, why in heavens I should spend $50-70 to buy a 500W PSU???
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  3. Posts : 913
    CP/M
       #43

    Even setting the Prime95 alone, still 90% usage.
    With settings below, it should give approx. 93% load.

    Best CPU for LGA775 for an Intel Q35 Express chipset?-b.png
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  4. Posts : 191
    Windows 10 Home
    Thread Starter
       #44

    muchomurka said:
    With settings below, it should give approx. 93% load.

    Best CPU for LGA775 for an Intel Q35 Express chipset?-b.png
    Why just 93% and not 100% like in any other PC I've seen?
    I do that test but with the BLEND ALL option.
      My Computer


  5. Posts : 913
    CP/M
       #45

    Why just 93% and not 100% like in any other PC I've seen?
    Under recent W10?
    Install MacOS in vmware if you truly wish 100%...
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  6. Posts : 191
    Windows 10 Home
    Thread Starter
       #46

    muchomurka said:
    Under recent W10?
    Install MacOS in vmware if you truly wish 100%...
    I don't know if that was a joke or not, hahaha. Anyways, what I want to say is that in any PC, if you run prime95, the CPU will go 100% all the time, unless heavy throttling happens. I'm always looking that in the Task Manager, of course, not any other program. So if right now Task Manager is giving me wrong GHz values, it could also be possible that it's giving me wrong % and Prime95 could be using my CPU at 100%, but task manager would show wrongly 92%.
      My Computer


 

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