Question about Compaq Evo D510 Minitower (Open Box) (OB4700432011) PC Desktop

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I would like to upgrade my cpu. Can I put a larger cpu? I have a compaq EVO D510 with a 1.8 processor.

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First thing to look at is what motherboard chipset is used.

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

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

(In relation to the motherboard used in Compaq Evo D510.
Does not apply to the new Intel Core i3, i5, or i7 processors, and their respective motherboards)

The Northbridge chip handles the Processor, Ram Memory, and high speed graphics.

[High speed graphics being AGP and PCI Express. Does not apply to a graphics card used in a PCI slot.

Integrated graphics, and a graphics card used in a PCI slot, is handled by the Southbridge chip. The Southbridge chip handles the slower processes of a computer.

(Suggest you also click on the blue - southbridge, at the last of the first sentence, for more information on the Southbridge chip.
Or you can type - Southbridge (computing) in the Wikipedia search box, and left-click on the magnifying glass icon )

Knowing this, search for what motherboard chipset, that is used for the Compaq Evo D510 series of computers, online.
Or download the tiny, tiny free program CPU-Z from

From a brief search online just now, I have found the Compaq Evo D510 series of computers, use the Intel 845G motherboard chipset

Here are the specs for the Intel 845G chipset,

Scroll down with your eyes to - 845G in the left column.
Read across, and look at the headings above.

The Code Name is Brookdale-G
Just trivial data I thought I would mention.

The actual part number stamped on the Northbridge chip is 82845G.
You won't be able to see this, due to the fact that there is a Heatsink, sitting on top of the Northbridge chip.

(Using CPU-Z would tell you what Northbridge chip is used, without even opening your computer. Tells you a WHOLE lot more.
Processor, motherboard, ram memory, and details about each, plus more, )

The Southbridge chip is an Intel ICH4.
More trivial information at this point, but I'm explaining the headings.

Release Date. When the motherboard chipset was released on the market.

Processors: Will support Pentium 4's or Celeron's.

(You don't want a 'Celey'. Has approximately half of the L2 cache, that a comparable Pentium 4 has. They are a Budget processor.

The cache for a Processor, is a small memory area for the Processor.
It operates at the same frequency rate ('Speed') as the Processor does.
Therefore it is the First memory area the Processor accesses.

Ram Memory operates at approximately half, of the FSB that the Processor does.
It is the second memory area the Processor accesses.
The Harddrive is next)

Front Side Bus
Think of the Front Side Bus as an 'information highway' between the Processor, and the Northbridge chip.

You will see 400/533MHz.
Means the Intel 845G chipset will support Processors, with either a 400MHz FSB, or a 533MHz FSB.

Mega = approximately 1 Million
Hertz stands for Cycles per Second.

400 Million Cycles per Second, or 533 Million Cycles per Second.

Indicates NO.
SymMetric Processing.

Indicates whether the motherboard chipset, will handle more than 1 Processor at a time.
The Intel 845G will not handle more than 1 Processor, according to what is stated.

Memory Types:
Shows you the Intel 845G, will support SDR Sdram ram memory at 133MHz, (PC133), or DDR Sdram ram memory at 266MHz.

Shows you the maximum Total amount, the Intel 845G will support.

Shows you it will Not support ram memory with Parity, or Error Correcting Control.

PCI Type:
Shows you the version, (v2.2), and the frequency rate, (33MHz) ['Speed'], it will support of the PCI technology.

From experience, (I'm an old tech), I can tell you the Intel 845G chipsets, were used with Pentium 4 processors, that use a Socket 478 processor socket.
Not Pentium 4's that use the LGA 775 processor socket.

Continued in an a Comment.

Posted on Jul 13, 2010

  • joecoolvette
    joecoolvette Jul 13, 2010

    You also have to look at what Voltage the Processor you currently have installed, uses.

    List of Intel Pentium 4 microprocessors starting with the Willamette Core:

    We don't know what exact Intel 1.8GHz processor, you have installed at present.
    Could be a Celeron, could be a Pentium 4.

    Left-click on Start > right-click on My Computer >Left-click on Properties. What does it state?
    Better still would be to use CPU-Z

    Looking at the chart for the Willamette Core Pentium 4's, check out the one's stated at 1.8GHz.

    (Pentium 4 1.8)

    They all use 1.75 Volts.
    Now scroll down to the 1.8GHz processors, listed under the Northwood Core heading, [Northwood (130nm)

    Averages from 1.475 Volts to 1.525 Volts
    Guess what happens if you stick a Processor in that uses 1.525 Volts, into a processor socket that delivers 1.75 Volts?

    Need you to use CPU-Z so we can get more exacting information.

    All of the information above has not been designed to confuse you.
    Not my intent.
    My intent is to inform you so you will use deductive reasoning, and not read what some stranger on the internet, states your computer should use for a Processor.


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  • Master
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You can upgrade the speed of the CPU. Of course in order to do that you must know the motherboard capabilities. If the motherboard is upgradable to 2.0ghz processor with the same specs with your 1.8ghz processor then you can upgrade. If the motherboard is un-upgradable, my suggestion is to replace the motherboard, get a new processor, memory module, etc. Meaning you just bought a new computer. For the mean time, upgrade your memory module. Un-install the software that you don't need. Especially the one the eats up the processor speed.

Posted on Jul 13, 2010

Testimonial: "Thank you yes it was helpful. I thought that maybe I needed to put more memory. I think my motherboard would hold a 2.0 G processor."


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