Post new question
Posts: 1
Member Since: ‎09-14-2010
Message 1 of 2 (878 Views)

HP processor upgrade


I have an HP desktop pc which came with an intel celeron d 3.46GHZ processor and now feel that it is outdated and therefore time to upgrade.  After looking at the list of compatiable processors on the hp website, which are:

Socket type: 775


  • Core 2 Duo (Conroe) up to E4300
    Pentium D (Presler) up to 960 (3.6 GHz
  • Pentium 4 (Cedar Mill) up to 661 (3.6 GHz

    Celeron D (Cedar Mill) up to 365 (3.6 GHz

    Celeron D (Prescott) up to 355 (3.33GH

    I then found a number of processors which i would be interested in but where not sure if they were compatiable.  These were:

    Intel Pentium Dual Core E5400 2.7GHz 800FSB Socket 775 2MB (2x1MB) L2 Cache Retail Boxed Processor

    Clock Speed - 2.7 GHz
    L2 Cache - 2 MB
    Bus/Core Ratio - 13.5
    FSB Speed - 800 MHz
    Instruction Set - 64-bit
    Lithography - 45 nm
    Max TDP - 65 W
    VID Voltage Range - 0.8500V–1.3625 




    Intel Celeron E3400 2.6GHz 800Mhz FSB 1MB Cache Retail Box Processor

    • Dual Core
    • Enhanced Intel Speedstep Technology
    • Intel EM64T 1
    • Intel Virtualization Technology
    • Enhanced Halt State (C1E)
    • Execute Disable Bit 2
    • Intel Thermal Monitor 2

    CPU Speed - 2.6GHZ
    Bus Speed - 800MHz
    L2 Cache - 1MB
    Socket - 775
    Thermal Power Design - 65


    So my question is, are either of these processors compatiable with my motherboard which is a 945GCT-HM (Livermore)?


    Many thanks in anticipation of your response.


    Posts: 12,390
    Member Since: ‎01-11-2010
    Message 2 of 2 (875 Views)

    Re: HP processor upgrade

    Its a gamble if it is not on the compatibility list, sometimes HP will add processors to a bios update, but they do not always reveal what processors microcode was added and do not update the compatibility list.


    You might Google your model + processor upgrade to see if any search results help in answering this question, someone on another forum may have done what you want to do and posted their results.


    † The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation