Question about Dell Latitude D620 Laptop (Latitude-C620) PC Notebook

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I have a Dell Latitude D620 with the T2500 processor in it. This is a 478 pin 667 FSB. It looks like the T7600 is the fastest Processor in the available. Do you know if the laptop is capable of supporting processors faster than the 667 FSB. thanks, Brian

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  • Brian Frazer Sep 01, 2010

    I am not worried about my warranty on this machine. It has expired some time ago. the T7600 is clocked at 2.33 but the D620 will over clock it to 2.83. My question is, am I limited to the 667 FSB or do you know if there is a BIOS upgrade the will let me go to the 800 or so FSB.



    Thanks,

    Brian

  • Brian Frazer Sep 01, 2010

    Many thanks for the help
    Brian

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Yes you can upgrade to 2.0ghz Core Duo processor. However you must keep this in mind that
Dell does not support processor upgrades. The new processor will not be covered under any remaining warranty. Any damage done to the system by that processor, or during the upgrade procedure will not be covered under warranty. Problems with the system that are unrelated to the processor upgrade will still be covered.

Posted on Sep 01, 2010

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Dell Latitude d620 lights but no boot


Your D620 probably has the Nvidia Graphics (Video) card that was a manufacturing defect well documented all over the internet. I have reflowed the video card on quite a few of these laptops.

Below are some excerpts from the user manual.

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I have an old IBM Netvista 6794 pc with its original IBM motherboard that it came with P4 pc with a 2.0ghz cpu. Now I want to change the processor. My question is can a 3.6ghz or 3.4ghz p4 intel cpu work...


Unlikely, I would think that the best processor you could use would be a 3.0Ghz or maybe a 3.06Ghz. If you look at the motherboard part number you will be able to find out from the manufacturers what the fastest CPU is. A lot depends on the FSB on the mobo and the Bios version. You need a "Socket 478" processor I think you will find that the processors you are looking at are "Socket 775" ( this is the fitting socket for the processor) .

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Hi I have a D420 its a small one thats what i like about it i also have a d620 but i wanted to upgrade my d420 with something to make it a little faster like a processor upgrade ...? im not sure about the...


Hi,

Your thoughts are breaking up as you are typing.

You stated;
1) I have a Dell Latitude D420 and a Latitude D620.
The D420 is small, that's what I like about it.

I want to make my D420 faster, is there a possible Processor upgrade?
I'm not sure about the specifications of the motherboard, so I do not know if this is possible.

I know I can get an SSD Harddrive,............the rest is illegible to me.

A) The D420 keeps going slow.

Question: After what?
After you installed an SSD harddrive? After you flashed the BIOS?


B) Was fast when I flashed it.

Question: Flashed the BIOS?
Why?
Why do people always rush to try to upgrade their BIOS program with a flash, when they do not know if it will help, or not?
One mistake and you have a dead laptop. Use it for a paperweight.

When you upgrade the BIOS you have the option to save the original, so you can go back to it in case there is trouble.
Did you?

Post back in a Comment.


While I wait.
To upgrade to a better Processor you need to know;

1) What Processor socket is on the motherboard

2) What is the motherboard chipset, and specifically, what is the Northbridge chip of the motherboard chipset.


To explain;

The motherboard chipset is the Northbridge chip, and the Southbridge chip.

(For the Dell Latitude D420 motherboard. This does not apply to motherboards that support the Intel Core i3, i5, i7, or i9 processors)

http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg

{Note*
CPU = Central Processing Unit. Another term is Microprocessor, or simply Processor for short. Does Not mean Personal Computer}

Chip and Chipset are slang terms for I.C.
Integrated Circuit.

http://en.wikipedia.org/wiki/Integrated_Circuit

The Northbridge chip is so aptly name because for one, it sits on the motherboard to the North, or top of the motherboard. Generally right under the Processor socket.

The Northbridge chip handle the Processor, Ram Memory, and High speed graphics.

{High speed graphics being AGP, or PCI Express. Not a graphics card installed into a PCI slot, nor Integrated Graphics. {Integrated Graphics, OnBoard graphics, same/same}


The motherboard chipset is an Intel 945GMS,

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Core.2FCore_2_Mobile_Chipsets

(Part number printed on the Northbridge chip is Intel 82945GMS. Part number on the Southbridge chip is Intel 82801GBM)

The Northbridge chip supports Processors with up to a 667Megahertz Front Side Bus. (667MHz FSB)

Will support Processors with either a 533MHz FSB, or a 667MHz FSB.
667MHz FSB being the maximum it will support.

The processor socket is a Socket M.

http://en.wikipedia.org/wiki/Socket_M


List of Intel Core microprocessors,

http://en.wikipedia.org/wiki/List_of_Intel_Core_microprocessors

Regards,
joecoolvette

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I could use a diagram of the mother board for a Pentium 4 2.4 Ghz processor. I picked one up second hand to replace my old processor


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Where is thebios chip located on the motherdoard


the bios chip on almost all laptops are intergrated you can not replace them it is usally located between the processor and micro processor most repair shops can not replace them they soldered to the board if you done a bad flash go to www.badflash.com they may be able to help you

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1 Answer

Upgrading CPU


Yeah, it was a bit hard to find, not being a currernt model I was stuck on the Asus site trying to find out for you.
Then I found this site -
http://www.hardwarezone.com/articles/view.php?cid=6&id=465&pg=
It says
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    Or higher, it says. But doesn't say how higher. It's a fair assessment that if it is a Pentium 4 socket 478 chip, it should work. Then it's a case of choosing one that suits your budget.
    Have a look on the Asus site for the latest BIOS updates too - they might have a clue as to what chip you can go to -
    http://support.asus.com/download/download_item.aspx?model=P4S533-MX&product=1&type=All&SLanguage=en
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    There's a motherboard user manual further down on the page. Make sure you choose the English one.
    Seems the issue is FSB speed, 533 or 400. No big problem for most, but I did see a Pentium4 3.0Ghz chip at 800 FSB so just check the speed of the processor matches the specs the motherboard handles. Like you say, looks like the 3.2 might be too fast because of the FSB requirement.
    Remember, a P4 is going to be quicker than a celeron anyhow so just go with the fastest 533 FSB chip you can find.
    A short-cut to the english manual, here - http://dlcdnet.asus.com/pub/ASUS/mb/sock478/p4s533-mx/e1187_p4s533-mx.pdf

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    Processor upgrade


    Hi ryonsdad,

    I checked out the Latitude D610 laptop, and you'll be glad to know that you have the following processor upgrade options:

    1.) Pentium M 780 Processor - 2.26 GHz, 2MB, 780, Pentium-M Dothan, 533FSB (fastest upgrade)
    2.) Pentium M 770 Processor - 2.13 GHz, 2MB, 770, Pentium-M Dothan, 533FSB
    3.) Pentium M 760 Processor - 2.0 GHz, 2MB, 760, Pentium-M Dothan, 533FSB
    4.) Pentium M 750 Processor - 1.86 GHz, 2MB, 750, Pentium-M Dothan, 533FSB
    5.) Pentium M 740 Processor - 1.73 GHz, 2MB, 740, Pentium-M Dothan, 533FSB (slowest upgrade)

    You can buy these processors from Dell Spareparts or otherwise from a 3rd party store.

    Hope this helps!

    Peace! :)

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    P4 ugrade required


    Sadly you wont find any 1066Mhz FSB processors for the Socket 478. The best you can find is the 3.4Ghz with 800Mhz FSB. It might be cheaper and also better value for you to get a Socket 775 based motherboard and Core2 Duo processor. The value range E2160/2180 processors or the E4300/4400 processors have been tested to be even faster than the Socket 775 Pentium Dual 3.4Ghz and they also use less power.

    An article on socket 478 for you http://www.xbitlabs.com/news/cpu/display/20040123103754.html

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