Pentium D to Core 2 Duo Upgrade ..... HELP!

Hi, I'm looking to upgrade my CPU but keeping the existing motherboard. Please help me out. Thanks.

Currently I have an Asus P5LD2 Deluxe board, Intel LGA 775 CPU (Pentium D 840 at 3.2 GHz), FSB at 800 MHz. The P5LD2 Deluxe board supports FSB of 1066/800/533 (according to the instruction manual).

I'm looking to buy a Core 2 Duo E7600 Wolfdale 3.06 GHz 3Mb L2 Cache LGA 775 FSB 1066 MHz.

The E7600 should be compatible with my motherboard? Am I missing any other detail? Is it "possible" to select another LGA 775 Core 2 Duo or Quad with a higher FSB of 1333 MHz instead? Any recommendations other than the E7600 CPU? If I do upgrade to a E7600, what kind of improvement will I see?
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  1. Emperus said:


    Thanks for the help everyone.

    From the list, a PCB of ver 2.01G will support the Core 2 Duo CPU. How do I know what's my board's PCB version? I looked everywhere!
  2. Hey,
    Look inside your PC it should be printed on the Board.
    If not maybe it's listed in the BIOS information
    Hope this helps.
  3. The PCB version must be mentioned on your motherboard's box cover.. Make sure you have the latest BIOS installed..
  4. that's an old board. I would sugest to you to save you're money and do a complete upgrade. To either Core i7 or AMD. Sandy bridge will be out soon and so would be BD and bring down the price. I mean if you can swing it off becuase it would not be worth it to keep that board and LGA 775 is dead no along with LGA 1156 and 1366. Intel makes it hard to just do a CPU swap.
  5. blackpanther26 said:
    that's an old board. I would sugest to you to save you're money and do a complete upgrade. To either Core i7 or AMD. Sandy bridge will be out soon and so would be BD and bring down the price. I mean if you can swing it off becuase it would not be worth it to keep that board and LGA 775 is dead no along with LGA 1156 and 1366. Intel makes it hard to just do a CPU swap.


    Thanks for the help again everyone.

    Btw, my board is not a ver 2.01G :( Yeah, it's hard to just do a CPU swap, but I tried :)

    Anyway, now I plan to do a motherboard and CPU swap instead. I plan to get the Asus P5P43TD/USB3 board and a Core 2 Duo E7600 3.06 GHz. I'll keep everything else the same (RAM, video card, etc). I'll need more help though. I'll do another post under "systems/homebuilt".
  6. do you already have the E7600? if not go with a core i5, i7 or an AMD Phenom II or Athlon II CPU and motherboard.
  7. blackpanther26 said:
    do you already have the E7600? if not go with a core i5, i7 or an AMD Phenom II or Athlon II CPU and motherboard.


    Nope, I haven't purchase anything yet, just planning (to). Can you recommend an Asus motherboard for i5 or i7? Thanks.
  8. The Asus P7P55D series constitutes some of the finest motherboards supporting LGA 1156 CPU's.. If you decide to get an i5/i7, you'd need to get new DDR3 RAM as well..
  9. Asus LGA 1156 board $89.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16813131623

    CPU dual Core i5 650 $179.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115220

    CPU quad Core i5 750 $194.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115215

    CPU Intel Core i7 860 $279.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115214

    DDR3 4GB $66.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16820146748

    This setup should last you a few years reguardless if you do go dual Core or Quad Core now let's compare prices with the E7600

    E7600 $149.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115059 The core i5 or i7 performs 15% faster than the core 2 duo and quad.

    just remember that the Core i5 650 and Core i7 860 has Hyper Threading enabled meaning the Core i5 650 is 2 cores and 4 threads where the i7 860 has 4 cores and 8 threads.

    The Core i5 750 how ever is just 4 cores 4 threads which means HT is disabled.
  10. blackpanther26 said:
    Asus LGA 1156 board $89.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16813131623

    CPU dual Core i5 650 $179.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115220

    CPU quad Core i5 750 $194.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115215

    CPU Intel Core i7 860 $279.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115214

    DDR3 4GB $66.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16820146748

    This setup should last you a few years reguardless if you do go dual Core or Quad Core now let's compare prices with the E7600

    E7600 $149.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115059 The core i5 or i7 performs 15% faster than the core 2 duo and quad.

    just remember that the Core i5 650 and Core i7 860 has Hyper Threading enabled meaning the Core i5 650 is 2 cores and 4 threads where the i7 860 has 4 cores and 8 threads.

    The Core i5 750 how ever is just 4 cores 4 threads which means HT is disabled.



    Wow thanks for all the info, everyone. I'm gonna go with the i5 650.
  11. Quote:
    ^+1
    awesome choice
    I'm finishing up this build for the lil' lady and using the same cpu
    (just something for you to check out):

    Asus P7H55D-M EVO Chipset LGA1156
    Intel® Core™ i5-660 Processor (4M Cache, 3.33 GHz)
    Zalman CNPS7000C-CU Copper CPU Fan
    CORSAIR XMS 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 Ultra Stable Desktop Memory Model CMX4GX3M2A1333C8
    GeForce GTS 450
    SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB
    OCZ Technology 60 GB Vertex 2 Series SATA II
    SAMSUNG BLU-RAY COMBO 8X BLACK BD ROM/DVD WRITER
    Apevia X-Qboii Black Micro ATX Case (clear view)w/ 500 watt psu
    120mm case fan / 5.25 bay twin fan case cooler
    3.5in card reader and/or 3.5in digital fan controller
    Windows 7 x64 OEM

    enjoy your build.



    Hi, thanks for taking your time to come up with the list :)
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