Best CPU for LGA775 for an Intel Q35 Express chipset?

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  1. Posts : 2,513
    trying to install win10
       #11

    Yes, Possibly the E8600 will work, but it is not in the spec sheet.
    For $10 it's not much of a gamble
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  2. Posts : 191
    Windows 10 Home
    Thread Starter
       #12

    muchomurka said:
    Personally I replaced E8400 by Q9550 (which is a bit slower but quadcore) and both the operating system and applications run much better. But i do not care...
    But applications and stuff don't really care about how much cores you have, and 2 of them are more than enough to cover their demands. What I'm trying to say is that if you use a dual core that scores 1400 single thread, it's gonna be better at everything than a quad core that scores 1300 single thread, better at everything but compressing files, rendering videos, etc...

    How can I know if the E8600 is supported?

    The Q9650 is still a bit expensive, $30 or so, while the Q9550 is only $15. May be a should go with the Q9550.
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  3. Posts : 913
    CP/M
       #13

    But applications and stuff don't really care about how much cores you have, and 2 of them are more than enough to cover their demands.
    1. You cannot run only one process at your comp, see Task Manager - Performance.
    2. Many processes are multithreaded.
    3. Quadcore has twice bigger caches.
    So quadcore almost always gives performance boost (but also penalty of higher power consumption).

    How can I know if the E8600 is supported?
    Take CPU-Z, it should say you which mobo you have. Then find its specs. But you can be disappointed by E8600 I am afraid... It is your choice.
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  4. Posts : 191
    Windows 10 Home
    Thread Starter
       #14

    muchomurka said:
    1. You cannot run only one process at your comp, see Task Manager - Performance.
    2. Many processes are multithreaded.
    3. Quadcore has twice bigger caches.
    So quadcore almost always gives performance boost (but also penalty of higher power consumption).
    Take CPU-Z, it should say you which mobo you have. Then find its specs. But you can be disappointed by E8600 I am afraid... It is your choice.
    OK, then the Q9550 it is.
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  5. Posts : 913
    CP/M
       #15

    But make sure whether your power supply and mobo can support 95W & 1333MHz FSB processor.
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  6. Posts : 4,439
    Win 11 Pro 22000.652
       #16

    rambomhtri said:
    I READ that page 10 and I can only see a list of CPU's, not a list of the requirements of the CPU. That's why I asked where are the reqs.

    Here's a comparison:
    PassMark - CPU Comparison Intel Core2 Duo E6750 vs Intel Core2 Duo E8600 vs Intel Core2 Quad Q9650

    As you can see, E8600 get 1370 in single thread, while the Q9650 only 1260. I think this is what makes most impact in a day to day basis, the tasks that use the 4 cores at maximum are very few and don't really do them.

    I believe, correct me if I'm wrong, that the E8600 will be faster (slightly) than the Q9650 at opening programs, loading apps, loading the system and all that kind of stuff. The quad core makes a big impact when encoding videos or compressing files.
    For example, turning on a computer (SSD of course), opening chrome, Photoshop, watching YouTube videos and turning off the computer, will be faster with the dual core. Agree?
    1370 is less than 9% above 1260. Not perceptible outside of benchmarking, I expect.

    The Q9650 is on an unofficial supported CPU list for the Q35 Express chipset: Access denied

    Good luck.
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  7. Posts : 12,429
    Win10 Version 21H2 Pro and Home, Win11 Pro
       #17

    One of my Insider Preview/IP computers is an Optiplex 755 and I left it alone except there were/are no drivers for the onboard Express video adapter so I used an Add-in ATI Radeon HD 2400 video card by Sapphire, no problems.
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  8. Posts : 191
    Windows 10 Home
    Thread Starter
       #18

    This is the MoBo:
    Chipset Intel Q35 rev A2, model 0DR845
    Southbridge 82801IO (ICH9DO) rev 02
    BIOS A22 (latest 2012)

    PSU: 280W
    RAM: 4GB

    Is it compatible with a GT 710 and a Q9550?
    I'm looking for a GPU that has HDMI and is cheap. The GT 1030 is perfect but they sell them between $50-80, way too much.

    Would you spend $20 GPU + $20 SSD + $15 CPU to upgrade this PC and make it usable for home regular tasks (Word, Chrome, watch films, etc...?
    Any problems you see?

    The alternative of spending $60 is buying a Rapsberry Pi 4 but it looks like a way weaker machine.
    Last edited by rambomhtri; 18 Sep 2019 at 08:48.
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  9. Posts : 2,513
    trying to install win10
       #19

    There is guy on youtube who does a lot of vids about upgrading DElls he might have something about the old 775 series PhilsComputerLab

    Another guy using q6600 and gt1030 on old dell
    YouTube

    https://www.youtube.com/watch?v=fIJb2YteWyY
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  10. Posts : 913
    CP/M
       #20

    The safest way is to fully identify manufacturer & model of motherboard & find its specifications:

    - open computer case
    - observe mobo for any identifiable strings & try to find them, or

    - take a snapshot of mobo without cables etc
    - use google picture search to find it, or

    - CPU-Z can identify some mobos directly - see Mainboard tab.

    For some boards, bios update may be necessary to support 1333MHz FSB procs. And not all mobos have voltage regulators suitable for quadcores, see its HCL. Condition of capacitors near socket (should not be leaked) also takes into account.
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