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Author Topic: P4 2.6 ghz running at half speed  (Read 15265 times)

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cstitt

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    P4 2.6 ghz running at half speed
    « on: June 02, 2010, 11:30:12 AM »
    I replaced a celeron 2.6 ghz in a Gateway ESSEX2 desktop computer with a P4 2.6 ghz 512/800 CPU and it runs at half speed.  Also tried it in Compaq Presario with 2.66 GHZ Celeron and same thing happened.  Is there a solution for this problem?

    Sodde



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      Re: P4 2.6 ghz running at half speed
      « Reply #1 on: June 02, 2010, 12:50:37 PM »
      I think it may have something to do with the BUS speed of the MB and the chip you are trying to fit.
      You might want to check the specs of both for compatability.

      cstitt

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        Re: P4 2.6 ghz running at half speed
        « Reply #2 on: June 02, 2010, 01:05:46 PM »
        I think it may have something to do with the BUS speed of the MB and the chip you are trying to fit.
        You might want to check the specs of both for compatability.

        I don't have any documentation for the MB's and so far unable to get any info for them but I think 400 is the max and thanks for responding.

        Computer_Commando



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        Re: P4 2.6 ghz running at half speed
        « Reply #3 on: June 02, 2010, 02:43:19 PM »
        I don't have any documentation for the MB's and so far unable to get any info for them but I think 400 is the max and thanks for responding.
        Find it here:  http://support.gateway.com/support/default.aspx

        cstitt

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          Re: P4 2.6 ghz running at half speed
          « Reply #4 on: June 02, 2010, 03:28:04 PM »
          Find it here:  http://support.gateway.com/support/default.aspx


          Thank you, I found this info on CPU "Support for Intel® Pentium® 4 and Celeron™ processors
          400/533-MHz System Data bus 478-pin ZIF socket"

          The CPU in question is P4 512/800-MHZ.  Would this be my problem?

          Computer_Commando



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          Re: P4 2.6 ghz running at half speed
          « Reply #5 on: June 02, 2010, 03:35:50 PM »
          Download, install and run CPU-Z:  http://www.cpuid.com/
          Post ta screenshot from the CPU tab.

          cstitt

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            Re: P4 2.6 ghz running at half speed
            « Reply #6 on: June 02, 2010, 04:21:32 PM »
            Download, install and run CPU-Z:  http://www.cpuid.com/
            Post ta screenshot from the CPU tab.

            I took the P4 out and put the Celeron back in.  Do you want the read out from the problem cpu (P4)?  If so, I will reinstall it and get the read out.

            I have screen shot for the Celeron but how do I post screen shot?  (how do I get screen shot)

            Computer_Commando



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            Re: P4 2.6 ghz running at half speed
            « Reply #7 on: June 02, 2010, 05:02:57 PM »
            I took the P4 out and put the Celeron back in.  Do you want the read out from the problem cpu (P4)?  If so, I will reinstall it and get the read out.

            I have screen shot for the Celeron but how do I post screen shot?  (how do I get screen shot)
            1.  Capture image - with app or window "active"; ALT-PrntScrn copies it to Clipboard, paste into Paint or any graphics app, save as jpg.  BTW, "Shift-PrntScrn" captures entire desktop (don't do this).
            2.  Below CH Message Box click on Additional Options:  Attach image you just created.

            Merlyn

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            Re: P4 2.6 ghz running at half speed
            « Reply #8 on: June 02, 2010, 05:04:48 PM »
            Could this have anything to do with the bios and hyperthreading? (just a thought)

            Merlyn

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            Re: P4 2.6 ghz running at half speed
            « Reply #9 on: June 02, 2010, 05:06:19 PM »
            800MHz is sure to have HyperThreading...  ???

            Computer_Commando



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            Re: P4 2.6 ghz running at half speed
            « Reply #10 on: June 02, 2010, 05:19:22 PM »
            It's probably because the bus speed is 400 and the P4 is 800, so effectively it's being under-clocked by 1/2.  Motherboard probably does not have capability of adjusting bus speed.

            cstitt

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              Re: P4 2.6 ghz running at half speed
              « Reply #11 on: June 02, 2010, 05:23:53 PM »
              This is the Attach of screen shot for CPU in question

              [recovering disk space - old attachment deleted by admin]

              Merlyn

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              Re: P4 2.6 ghz running at half speed
              « Reply #12 on: June 02, 2010, 05:27:58 PM »
              It has Hyper threading (YES  :D)

              Well maybe the Processor in question has has ESD? (Electrostatic discharge/damage)

              the clock speed should e alot higher?

              do you have Motherboard Details?

              Computer_Commando



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              Re: P4 2.6 ghz running at half speed
              « Reply #13 on: June 02, 2010, 05:44:30 PM »
              http://www.cpu-world.com/info/Intel/Intel_Pentium_4.html
              I see 2 Northwood Socket 478's at 2.60GHz
              RK80532PC064512; BX80532PC2600D, 400MHz, 26;  This P4 would give you 2.6GHz
              RK80532PG064512; BX80532PG2600D, 800MHz, 13  This is probably your P4; part number is on the top of the cpu

              Your Bus Speed is 100, Celeron's multiplier is 26, P4 multiplier is 13.

              It's a lot more involved than you were thinking (LOL).  There's nothing you can do unless the motherboard has the ability to be reconfigured, which most all branded computers cannot.  Retail motherboards are much more configurable.
              « Last Edit: June 02, 2010, 05:56:15 PM by Computer_Commando »

              Merlyn

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              Re: P4 2.6 ghz running at half speed
              « Reply #14 on: June 02, 2010, 06:14:02 PM »
              Well that's interesting...
              Maybe it's the Hyper Threading that's doing it? Try turning off Hyper Threading inside the BIOS settings? It could be that the motherboard doesn't support Hyper Threading technology... If we had a Name and Make of the motherboard we may be able to tell if it has the support for hyper threading....

              Computer Commando, Help me with this?

              Merlyn

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              Re: P4 2.6 ghz running at half speed
              « Reply #15 on: June 02, 2010, 06:19:54 PM »
              Wait until OP returns.
              HT is not the issue at this point.
              Computer is:  Gateway ESSEX2 desktop computer

              cstitt

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                Re: P4 2.6 ghz running at half speed
                « Reply #16 on: June 02, 2010, 07:33:23 PM »
                Well that's interesting...
                Maybe it's the Hyper Threading that's doing it? Try turning off Hyper Threading inside the BIOS settings? It could be that the motherboard doesn't support Hyper Threading technology... If we had a Name and Make of the motherboard we may be able to tell if it has the support for hyper threading....

                Computer Commando, Help me with this?

                Merlyn

                Intel (Essex2) Celeron - 2.4 GHz (400MHz) R0 [Part #2519531]

                Is the info you want?

                cstitt

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                  Re: P4 2.6 ghz running at half speed
                  « Reply #17 on: June 02, 2010, 07:39:33 PM »
                  Well that's interesting...
                  Maybe it's the Hyper Threading that's doing it? Try turning off Hyper Threading inside the BIOS settings? It could be that the motherboard doesn't support Hyper Threading technology... If we had a Name and Make of the motherboard we may be able to tell if it has the support for hyper threading....

                  Computer Commando, Help me with this?

                  Merlyn


                  Intel (Essex2) Celeron - 2.4 GHz (400MHz) R0 [Part #2519531]

                  Merlyn

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                  Re: P4 2.6 ghz running at half speed
                  « Reply #18 on: June 02, 2010, 07:49:15 PM »
                  Sorry just got home... Stupid bus... :P


                  cstitt

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                    Re: P4 2.6 ghz running at half speed
                    « Reply #20 on: June 02, 2010, 08:39:53 PM »
                    http://support.gateway.com/support/drivers/getFile.asp?id=19521&dscr=Bios%20Update%20for%20the%20Essex,%20Essex%202,%20Nimitz,%20Shiloh%20and%20Yorktown%20Motherboard,%20version%20RG84510A.15A.0057.P19&uid=270975106&site=int&lang=en


                    BIOS UPGRADE, THAT MIGHT SUPPORT THE HYPER THREADING.

                    Possibly end of problems? (I hope) :P
                    I have downloaded the upgrade, will work on the problem tomorrow as it is getting late here.  I will be replying on progress again tomorrow.
                    I really appreciate everyone for there help and my thanks to them.

                    Merlyn

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                    Re: P4 2.6 ghz running at half speed
                    « Reply #21 on: June 02, 2010, 08:43:27 PM »
                    You are very welcome.

                    Glad to be of service

                    Merlyn  ;D

                    cstitt

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                      Re: P4 2.6 ghz running at half speed
                      « Reply #22 on: June 03, 2010, 06:52:26 AM »
                      http://www.cpu-world.com/info/Intel/Intel_Pentium_4.html
                      I see 2 Northwood Socket 478's at 2.60GHz
                      RK80532PC064512; BX80532PC2600D, 400MHz, 26;  This P4 would give you 2.6GHz
                      RK80532PG064512; BX80532PG2600D, 800MHz, 13  This is probably your P4; part number is on the top of the cpu

                      Your Bus Speed is 100, Celeron's multiplier is 26, P4 multiplier is 13.

                      It's a lot more involved than you were thinking (LOL).  There's nothing you can do unless the motherboard has the ability to be reconfigured, which most all branded computers cannot.  Retail motherboards are much more configurable.
                      I am convinced that you are right, I installed a Celeron
                      2.66 ghz with bus speed 133.3 and multiplier is 20 with
                      core 1 and thread 1, computer would not boot up with that
                      processor, I also followed Merlyn's suggestions,
                      same thing no change. 

                      Merlyn

                      • Guest
                      Re: P4 2.6 ghz running at half speed
                      « Reply #23 on: June 03, 2010, 02:46:46 PM »
                       ???

                      Dang?... Well have you tried completely removing the CPU and checking that the TGA (Top Grid Array) Hasn't been swapped over... (indents on the CPU chip would indicate) Otherwise... I am stumped... I will do more research and see if i can help you...

                      Merlyn

                      cstitt

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                        Re: P4 2.6 ghz running at half speed
                        « Reply #24 on: June 03, 2010, 03:27:46 PM »
                        ???

                        Dang?... Well have you tried completely removing the CPU and checking that the TGA (Top Grid Array) Hasn't been swapped over... (indents on the CPU chip would indicate) Otherwise... I am stumped... I will do more research and see if i can help you...

                        Merlyn
                          I've had the CPU in and out but don't understand what "TGA being swapped over" means!

                        Salmon Trout

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                        Re: P4 2.6 ghz running at half speed
                        « Reply #25 on: June 03, 2010, 03:38:02 PM »
                          I've had the CPU in and out but don't understand what "TGA being swapped over" means!

                        Your cpu is a Socket 478 model, so you can just ignore that.

                        Merlyn

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                        Re: P4 2.6 ghz running at half speed
                        « Reply #26 on: June 03, 2010, 04:18:33 PM »
                        Please ignore my last post >.<(cold is getting to my head :P)

                        Computer_Commando



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                        Re: P4 2.6 ghz running at half speed
                        « Reply #27 on: June 03, 2010, 04:24:29 PM »
                        I am convinced that you are right, I installed a Celeron
                        2.66 ghz with bus speed 133.3 and multiplier is 20 with
                        core 1 and thread 1, computer would not boot up with that
                        processor, I also followed Merlyn's suggestions,
                        same thing no change.
                        The specifications of this:
                        http://support.gateway.com/s/MOTHERBD/INTEL/2519056/2519056sp28.shtml
                        indicate that this CPU will work.
                        RK80532PC064512; BX80532PC2600D, 400MHz, 26;  This P4 would give you 2.6GHz
                        However, don't expect a significant increase in performance over the Celeron you are currently using.  Better to sell the Gateway than try to upgrade it.

                        cstitt

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                          Re: P4 2.6 ghz running at half speed
                          « Reply #28 on: June 03, 2010, 04:47:19 PM »
                          Thank you Computer_Commando for post #27
                          The P4 is an extra CPU with more cache and higher bus speed than the celeron that I had laying idle and decided to install it in the Gateway PC that I dug out of the throw away bin where I live and don't intend to invest in upgrade for it.  PC runs good with the celeron also runs ok with P4 at half speed.  I would still like to solve the problem with the P4.

                          Computer_Commando



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                          Re: P4 2.6 ghz running at half speed
                          « Reply #29 on: June 03, 2010, 04:57:00 PM »
                          ...I would still like to solve the problem with the P4...
                          OK.  A science experiment!  I don't believe it's a solvable problem.  The motherboard that is supplied to Gateway has a very limited number of hardware variations.  If you can determine make & model of motherboard, you may be able to find someone who has "hacked the BIOS" successfully.  There is a chance that the mobo is supplied to several manufacturers that each have their own BIOS.  I have a computer in a similar situation but am not willing to flash the BIOS as an experiment.

                          cstitt

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                            Re: P4 2.6 ghz running at half speed
                            « Reply #30 on: June 03, 2010, 05:10:31 PM »
                            OK.  A science experiment!  I don't believe it's a solvable problem.  The motherboard that is supplied to Gateway has a very limited number of hardware variations.  If you can determine make & model of motherboard, you may be able to find someone who has "hacked the BIOS" successfully.  There is a chance that the mobo is supplied to several manufacturers that each have their own BIOS.  I have a computer in a similar situation but am not willing to flash the BIOS as an experiment.
                            I will look for MB info and post it if I find it.  I am beginning to think that I have a faulty CPU or motherboard that as you stated "is unsolvable".

                            Computer_Commando



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                            Re: P4 2.6 ghz running at half speed
                            « Reply #31 on: June 03, 2010, 05:33:23 PM »
                            I will look for MB info and post it if I find it.  I am beginning to think that I have a faulty CPU or motherboard that as you stated "is unsolvable".
                            No, it's not faulty.  It's performing just as it was designed to.

                            cstitt

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                              Re: P4 2.6 ghz running at half speed
                              « Reply #32 on: June 03, 2010, 06:25:24 PM »
                              Mother board is "Intel E210882"
                              There is some other numbers on white labels also which is:

                              4000811
                              ABRG32847628  AA  C29595-101

                              I don't know what the latter numbers are for!

                              Computer_Commando



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                              Re: P4 2.6 ghz running at half speed
                              « Reply #33 on: June 03, 2010, 06:32:15 PM »
                              Mother board is "Intel E210882"
                              There is some other numbers on white labels also which is:

                              4000811
                              ABRG32847628  AA  C29595-101

                              I don't know what the latter numbers are for!
                              http://www.intel.com/support/motherboards/desktop/sb/cs-009009.htm

                              Is this your motherboard?  Your chipset P/N will identify which.  845GL or 865GV.
                              http://downloadmirror.intel.com/15203/eng/D865GVHZ_ProductGuide01_English.pdf
                              OR
                              http://downloadmirror.intel.com/15212/eng/D845GLVA_ProductGuide_English.pdf

                              cstitt

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                                Re: P4 2.6 ghz running at half speed
                                « Reply #34 on: June 03, 2010, 07:27:52 PM »
                                http://www.intel.com/support/motherboards/desktop/sb/cs-009009.htm

                                Is this your motherboard?  Your chipset P/N will identify which.  845GL or 865GV.
                                http://downloadmirror.intel.com/15203/eng/D865GVHZ_ProductGuide01_English.pdf
                                OR
                                http://downloadmirror.intel.com/15212/eng/D845GLVA_ProductGuide_English.pdf

                                Finally caught on  :-[
                                #845GE
                                couldn't find info with AA#

                                [recovering disk space - old attachment deleted by admin]

                                Salmon Trout

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                                Re: P4 2.6 ghz running at half speed
                                « Reply #35 on: June 04, 2010, 12:10:03 AM »
                                cpu bus speeds celeron 400 MHz, p4 800 MHz, therefore P4 runs at half speed.



                                Computer_Commando



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                                Re: P4 2.6 ghz running at half speed
                                « Reply #36 on: June 04, 2010, 09:15:59 AM »
                                cpu bus speeds celeron 400 MHz, p4 800 MHz, therefore P4 runs at half speed.
                                We know.  He wants to modify it, which is unlikely on a Gateway.

                                Sodde



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                                  Re: P4 2.6 ghz running at half speed
                                  « Reply #37 on: June 04, 2010, 09:43:13 AM »
                                  From personal experience I can tell you that even if you achieve this (yes, it is possible on certain MB-CPU combinations), you will more than likely encouter intermittant issues with such things as USB, AGP, PCI Bus errors etc causing fatal errors and BSOD's.
                                  If its purely a 'science project' then have at it but be warned, you could invest a lot of time getting the CPU running at the right speed, only to find its unusable.

                                  cstitt

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                                    Re: P4 2.6 ghz running at half speed
                                    « Reply #38 on: June 04, 2010, 11:44:02 AM »
                                    Thanks to Computer_Commando I was able to get the CPU's that are supported by MB from the manual which doesn't list 512/800.  Below is the list:

                                    Table 2. Processors Supported by the Desktop Board
                                    Type Designation FSB Frequency L2 Cache
                                    Intel® Pentium® 4
                                    processor
                                    2.60, 2.50, 2.40, 2.20, 2A,
                                    1.80A, and 1.60A GHz
                                    400 MHz 512 KB
                                    Intel® Celeron® processor 2.20, 2.0, 1.80 and 1.70 GHz 400 MHz 128 KB

                                    If I can't get CPU to full speed would it be better with 512 cache at half speed or the 2.6 with 128 cache?

                                    cstitt

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                                      Re: P4 2.6 ghz running at half speed
                                      « Reply #39 on: June 04, 2010, 12:19:57 PM »
                                      From personal experience I can tell you that even if you achieve this (yes, it is possible on certain MB-CPU combinations), you will more than likely encouter intermittant issues with such things as USB, AGP, PCI Bus errors etc causing fatal errors and BSOD's.
                                      If its purely a 'science project' then have at it but be warned, you could invest a lot of time getting the CPU running at the right speed, only to find its unusable.
                                      Nothing is lost if things don't go right as I mention earlier I got the PC out of the throw away bin and it was trashed when I started puting it together.  Nothing worked on it.

                                      Salmon Trout

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                                      Re: P4 2.6 ghz running at half speed
                                      « Reply #40 on: June 04, 2010, 12:33:18 PM »
                                      A 2.6 Celeron at full speed is going to be MUCH faster than a P4 running at 1.3 GHz.

                                      cstitt

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                                        Re: P4 2.6 ghz running at half speed
                                        « Reply #41 on: June 04, 2010, 01:24:30 PM »
                                        A 2.6 Celeron at full speed is going to be MUCH faster than a P4 running at 1.3 GHz.

                                        Thank you, what difference does a 512 cache make as to a 128 cache CPU in performance?


                                        Salmon Trout

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                                        Re: P4 2.6 ghz running at half speed
                                        « Reply #42 on: June 04, 2010, 01:30:55 PM »
                                        Thank you, what difference does a 512 cache make as to a 128 cache CPU in performance?



                                        Not very much. And it would be completely swamped by the 50% speed reduction.