Question about EliteGroup P4ITA2 Motherboard

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Problem with P4ITA2 Motherboard recognizing RDRAM upgrade

I have an ATX (ECS) P4ITA2 Motherboard w/ 423 socket
Intel Pentium 4 processor 1400 MHz 400 MHz Frontside buss.
255 MB Physical, 875 MB Virtual, and 620 MB Swap memory.
Including 4 Infineon - 64 mb Rambus DRAM modules, 2.5v., PC800, 184 pin.
Both the motherboard and bios state they can handle up to 2 GB memory, and require it to be non-buffered - registered or standard memory.
I purchased 2 - 256mb Kingston RIMM 800-45 - ECC - PC800 - 184 pin - 2.5 v. modules that were guaranteed to work and work with all 400 MHz frontside buss computers.
I have tried installing these 2 modules into RIMM 1 & 2 and also RIMM 3 & 4, and both times my computer just beeps a long tone every 5 seconds (stating memory error). I have tried the resetting of the CMOS memory, but same results, computer won't boot and display is unpowered. I have contacted the seller of the memory, and also the ECS website, and am waiting for some help. It seems as though the computer won't recognize or communicate with the new memory, although I believe I have purchased exactly what was called for.
I have found an another memory website the following in regards to my motherboard:
''Your ECS Elitegroup Computer P4ITA2 only supportsmodules made with a specific type of chip. Should you find what seemsto be the exact same memory elsewhere for a lower price, it is verypossible that the cheaper memory will not work in your system''.

In reading about this, it seems to be more about the board or bios not being able to handle high amounts of memory that wasn't even available at the time the board was manufactured. I don't know if this has connection to my problem.

Anyone have any ideas what I can do other than wait for answers from the board manufacturer or the guy who sold me the memory? I am still questioning the buffered or non-buffered.

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  • 4 more comments 
  • whisky7 Mar 04, 2009

    appreciate the help, I will give that a try, although I was always warned about updating system bios on a working fine computer. Might cause new problems I guess, but I'll give it a try.
    What I question is whether to update the existing bios (Award) or go to the manufacturers site for their update for a different bios?

  • whisky7 Mar 04, 2009

    I believe that the manufacturer of the computer used Phoenix Award Bios for their systems, while when I go to ESC they show 3 updates to the bios (but I don't believe it is the same provider)

  • whisky7 Mar 04, 2009

    Thanks Again. I have found out that although the book that came with my computer states that it has a P4ITA2 motherboard version 1.3, the numbers on the actual board state a P4ITA version 1.0. This uses a different manual, but the memory specs are the same. I have also found that the memory I purchased is ECC, and although the bios states either can be used, it has been disabled, so only Non ECC or unbuffered can be used. This may be my whole problem What do you think? The place where I ordered the memory states that ECC and non-ECC can be mixed, but the motherboard book states no.

  • whisky7 Mar 04, 2009

    As far as I know unbufferred means non-ecc. Below are specs from the board.
    * 184-pin RIMM Banking: 4 (2 banks of 2)
    * Chipset: Intel 850
    * Error Detection Support: ECC and non-ECC
    * Graphics Support: AGP 4X
    * Max Component Density: 256Mb
    * Max RDRAM: 2048MB
    * Module Types Supported: Unbuffered only
    * RDRAM Frequencies: PC600, PC700, and PC800
    * Supported DRAM Types: RDRAM only
    * USB Support: 1.x Compliant

  • whisky7 Mar 04, 2009

    Thanks, I am going to try to get the seller to send me a non-ecc rimm module of the same speed. I want to do that before I go the route of updating the bios, as the bios and board both state being able to accept up to 2 GB. I don't really think that updating the bios will correct my problem, being that I am trting to install ecc modules. As it stated above, use only non-buffered (or non-ecc) modules. I think that is my main problem.

  • whisky7 Mar 09, 2009

    I have received the new memory, installed it and got the same result.
    I figured out the problem, which ended up being quite simple and was surprised nobody caught it.
    When installing RIMM memory in matching pairs onto a motherboard with 4 slots, the matching pairs have to be installed in stagging positions (ie 1&3 or 2&4). Being that I was installing this memory into a computer with 4 slots, with 4 64mb modules, I removed the modules out of slots 2 and 4 and replaced it with the newer upgraded modules. The computer booted normally, and showed the increased physical memory.
    My mistake, but I did finally figure it out. Maybe this will possibly prevent someone else from doing the same thing.
    I felt like a fool, but glad I figured it out!



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Sometimes, if the memory is a newer type, even though it matches the specifications laid out by the motherboard, there may be other factors like timing and voltage which cause a motherboard to not function with that memory. A lot of the time a motherboard manufacturer will be made aware of this problem and release a BIOS update to resolve it. Have you checked the motherboard manufacturer's website, ESC, to see if your particular motherboard is up-to-date with the most currently released BIOS version?

You can figure out what version of BIOS you're running if you go to Start -> All Programs -> Accessories -> System Tools -> System Information. On that first page it will list the BIOS version information and the date of that BIOS. If ESC has a newer BIOS available, you might try updating the BIOS to see if that resolves the issue.

Posted on Mar 04, 2009

  • 2 more comments 
  • Matt H
    Matt H Mar 04, 2009

    Whatever BIOS came already used on the board is what the BIOS update will be for.

  • Matt H
    Matt H Mar 04, 2009

    I certainly don't want you flashing your BIOS if you're not totally comfortable doing it. It is not a process to be taken lightly and although I've done several BIOS updates successfully over a multitude of boards, I still treat it as if it was brain surgery.

    Motherboard models are flashed with whatever BIOS they have decided to use. If you download the BIOS update and the BIOS update tool directly from the manufacturer's website, you can have peace of mind knowing they won't have released a BIOS update that uses a different BIOS Company.

    You can find out the the BIOS Manufacturer and version by going to START -> All Programs -> Accessories -> System Tools -> System Information. The newest BIOS updated according to ESC's website, for this board, was March 28, 2003 and was version 37396. It should have AMIBIOS American Megatrends or something similar in your System Information under BIOS Version/Date. If it doesn't have the date mentioned above, you should try the BIOS update listed on ESC's website. Here's a link:

    If you're too worried about totally breaking your PC, you might consider using Google to locate suitable memory for this motherboard. A lot of times you can find this information in reviews for the product. They'll say something similar to "I have this board with and it workes great!" Then just find that memory and you might be all set.

  • Matt H
    Matt H Mar 04, 2009

    Well if you noticed the book is for the P4ITA2 motherboard and the motherboard is printed to say its a P4ITA, then I would use a downloaded manual for the P4ITA board from ESC's website and forget using the P4ITA2 book as it seems it might have options/specifications that your board does not.

    As for the ECC and non-ECC, I'm not sure what to tell you on this. :( ECC has been phased out on or included on all memory types now and it is hard to find reference to ECC memory when looking up specifications on most sites. If you look up information on the P4ITA boards and it says ECC is needed, I would stick with ECC memory only as most motherboards were designed for specific hardware, unfortunately.

  • Matt H
    Matt H Mar 04, 2009

    I overlooked the RDRAM aspect of this problem initially because, quite frankly, I had forgotten about it. Allow me to explain.

    RDRAM was a failed memory type that popped up in the late 1990s and lasted only a few years into the this decade. Mostly it failed because it created more heat, under performed SDRAM, required more physical space due to housing requirements in the case, and was being forced out by fixed-pricing schemes set up by the major SDRAM producers during the time. So few units were sold that I'm surprised you were able to find memory for this at all that didn't cost a pretty penny to procure.

    One of the major downsides to RDRAM was its compatibility issues which I think you're experiencing now. At this point, I'm not sure what to tell you. Did you buy the RDRAM from a reputable company or a seller on eBay? If its a company, you might consider returning it and trying to find memory that's more "specific" to your board. If it's a seller, it might be more difficult to do this but you might check.

    Whichever route you go, I wish you luck, as every experience I've had with RDRAM in the diagnostic world, has ended in a headache!



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My pc wont boot up how can i tell what core it is? its a Dell with 2.8 ghz intel

If this holds true,

,the Dell computer is a Dimension 8250.

If that holds true, then NO. The motherboard chipset does NOT support using a dual core processor, much less a quad-core.

The motherboard chipset used for the technology of your Dell motherboard, utilizes a Northbridge chip, and a Southbridge chip.

Let's regress for a moment;

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

If you would take the motherboard out of the computer case, and stand it up in the same direction/position it was in the case, on a table; the motherboard can be viewed as a Map.

The Processor is due North, the Ram Memory slots are due East, the white long PCI slots are due South; and the I/O ports are due West.

The Northbridge chip is always close to the CPU. (Processor)
This is one reason it is named the Northbridge chip.

The Southbridge chip lays down near the white long PCI slots.
Yes. Due South.

The Northbridge chip handles the Faster capabilities of a computer.
Processor, Ram Memory, and HIGH-speed graphics.

Therefore when you want to upgrade the Processor, not only take a look at what processor socket is used on the motherboard; but also see what the Northbridge chip is.

[There is more ]

HIGH-speed graphics being AGP, and PCI Express,

a) Using a graphics card inserted into a white long PCI expansion slot, is NOT high-speed graphics.
b) Using Integrated Graphics is NOT high-speed graphics.

The Southbridge chip handles the Slower capabilities of a computer.

1) Anything connected to the IDE bus. (IDE is also referred to as PATA)
2) Anything connected to the SATA bus.
3) Anything connected to the USB bus.
4) Anything connected to the Ethernet bus.
5) Audio (Sound)

An example of general location using this example,

The motherboard example is clocked 90 degrees to the Left, plus a few more degrees (22?); than how it actually is positioned in a computer case.

As you can see with this example, the Northbridge chip has an aluminum finned Heatsink on it. They run hot, and need to be cooled.
The Southbridge chip in this example does not use a Heatsink.
Most newer motherboards do.

The motherboard chipset used on the Dimension 8250 motherboard, is an Intel 850E.

One of the first Intel chipsets to start supporting Intel Pentium 4 processors.
Age, my man. This baby is O-L-D.

Dual core processors weren't even heard of then. They hadn't come out.
Much less quad-core processors.

Fourth listing down in the Chipset column. 850E

Northbridge is Intel 82850E
Southbridge is Intel ICH2. Part number is Intel 82801BA

Just spotted this.

Should mean you are running an Intel Celeron, or Intel Pentium 4, that use a Socket 423.

Seriously? RDRAM?
That ram memory technology has been left way behind.
Rambus DRAM. (Dynamic Random Access Memory)

Plus the price of Ram Memory is out-freaking-rageous!
For the price of 1GB of RDRAM, you could buy 4GB of Sdram
DDR, DDR2, or DDR3.

Advise get rid of that motherboard.

Processor? Nope. Can't reuse. Why? It's a Socket 423 Intel processor. They use RDRAM ram memory.
Intel made a deal back in the day, that they would manufacturer Intel processors utilizing a Socket 423, and RAMBUS ram memory,


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Need a manual for pm800-m2 motherboard

Hello Gerard, my name is Arman (online alias: thedrain)

Attached in the below hyperlink is the manual that you are looking for...


Jan 16, 2013 | VIA ECS PM800-M2 PM800 P4FSB 800 Supports...

1 Answer

Owners manual

User/Owner's Manual:

Scroll the page down to about 3/4th of the way, and to the bold black subheading - Legacy computer User Guides.

Click on the blue -
Using Your Gateway PC (For PCs shipped April 2002 - July 2002)

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the above file name, it may take up to 30 seconds, before the first page comes up.

You can copy this PDF file to a CD disk, or flash drive. (Me? CD disk) This way you can have the user guide at your fingertips, anytime you want it, and can store it safely.
You also will not have to download it again.

After checking that the copy is good, you can delete it from the computer you downloaded it to, and can save harddrive space.

May I ask what is it that you need John?

Supposed to come with;
1) Intel Pentium 4 processor that can operate up to a frequency rate ('Speed') of 1.8GigaHertz. (1.8GHz)
Fits in a Socket 423 processor socket,

Scroll the page down until you come to Pentium 4 1.8 in blue, and Socket 423 on the right.

The conclusion, that it is an Intel Pentium 4 1.8GHz, and uses a Socket 423, and not a Socket 478 processor socket, is from the fact the computer uses Rambus ram memory.


RDRAM -> PC800

Scroll the page down also, and read under the bold black subheading - Marketing history

1) Intel used RDRAM for a VERY limited time.
Very FEW processors were made.

2) RDRAM costs 3 to 5 times what DDR Sdram costs.

3) Between the no upgrading of the Processor, and the high cost of the ram memory, I would set that baby on a shelf, and show future generations what a dinosaur looks like.

Not trying to knock the computer, or offend you.

Trying to update hardware components, or repairing the computer, IMHO is just like opening a window, and throwing money out.

You can remove the harddrive, and put it in an economical external enclosure. The external enclosure has a USB cable, that you just plug into any available USB port, on a working computer.

This way you can access the personal information off of that harddrive.

As for buying RDRAM ram memory? You could add a little coins, and buy an ENTIRE working good, used computer!

(Yes. I see the computer cost around $1353.00 when new.
The Processor cost FIVE HUNDRED, SIXTY TWO dollars, when new!
The Processor is about $20 bucks now)

Not advertising for seller, or website, but for $90 you could buy a good used computer, that will smoke the computer you have now,

I have picked up some curbside, that is better than what you have.
Jus sayin' in case you are thinking about upgrading that computer, or repairing it.

For additional questions please post in a Comment.

(Most desktop computer failure can be attributed to it is dirty inside, {To include the Power Supply}, and/or the Power Supply is bad )


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Depends on the socket type.. Socket 423 and 478 do not support core duo or quad core processor types. However, if you have LGA 775 (aka socket T) your motherboard will support the following:
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Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition (3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)
Pentium Extreme Edition (3.20 - 3.73 GHz)
Pentium Dual-Core (1.40 - 3.33 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)

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Support dualcore?

That is a socket 478 motherboard. I doubt that one even gets dual core processors in the 478 chipset. Also according to the ECS website, this is a Pentium 4/Celeron board. More info can be found here.

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The chips to which you refer are incompatible with respect to the socket used for each as well as the fact that Core duo and Pentium 4 1.5 GHz chips are from separate generations, the latter having been obsolescent since 2003. Therefore, there is no single motherboard that supports both, and the Pentium 4, Socket 478 boards can be obtained from various aftermarket sources.

Here is an example of the kind of board you need for your Pentium 4.

$11 to $290 from 21 sellers
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Support for the Intel Pentium 4 processors featuring Hyper-Threading Technology and 800-MHz system bus in the mPGA478-pin package. Also supports the Intel Pentium 4 processors (1.60a, 1.80a, 2a, 2.20 GHz or higher) with 533-MHz or 400-MHz system bus in the mPGA478 package.

Intel 865G Chipset featuring Intel Extreme Graphics 2 using Dynamic Video Memory Technology (DVMT). Low-cost, high-performance graphics solution.

Dual-Channel DDR400 SDRAM support: Four DIMM sockets designed to support up to 4 GB of DDR400 SDRAM memory (also supports DDR333 and DDR266). Flexible support for either single- or dual-channel operation.

AGP 8X/4X graphics interface: Flexibility to upgrade via a high-end AGP graphics card.

SATA150 and Ultra ATA100 connectors: Flexible support of new-generation SATA150 (2 ports) and current generation ATA (2 channels) storage devices. « less

While the board for your Core Duo is widely available now

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ecs_buttom_03.gif LGA775 socket for latest Intel® Core™ 2 Duo / Pentium® Dual Core/ Pentium® D / Pentium® 4 / Celeron 4xx series/ Celeron® D processor ecs_buttom_03.gif FSB 1066/800/533 MHz

The above information was taken from their website.

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U have to find the motherbord's manual !!!! U will find there all u need. But most probably u won;t be able to put those processors (the speed diferences are too big, even if they are of the same slot type)

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