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Adding more memory

I have a new 512MB and would like to add more memory to my PC, it should be easy from me to put the new card into the computer -correct?

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  • Arnoud1976 Dec 16, 2008

    I hae the same problem.

    I have 2 bars of 256 DDR-ram in my pc (asus a7a-266 motherboard) and i wanted to switch to two bars of 1GB (According to the manual it is possible to have maximum of 2 x 1GB DDR).

    But when i put two bars in it it recognises only 1mb (yes, MB!!!). When i put only one bar in it it recognized it, but with two it doesn't work.

    Can anybody please help me?

    Greetings, Arnoud



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Padre just be sure that your original RAM would be thesamw as the old one (especially there RAM speed). they should be the same .

Posted on Jun 10, 2009

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Yes and no. Depends on the motherboard and the type of memory. On some boards you have to add memory in pairs, others you can add one stick, then there's parity, etc, etc. Check the memory that's on the board, check the manual to see how it recommends you upgrade memory. One wrong stick can turn your new CPU into a nice end table.

Let us know what you find out.

Posted on Jan 03, 2008

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1 Answer

IBM T23 wont turn on after adding new RAM


Hi - according to memory suppliers your T23 has the following memory capacity / requirements:

  • IBM ThinkPad T23 maximum RAM capacity: 1GB
  • Your IBM has Two (2) memory slots or sockets
  • Module upgrade PIN count is: 144-PIN
  • The memory speed is: SDRAM 133MHz, PC133
  • The laptop DIMM type for the ThinkPad T23 is: SODIMM, SO-DIMM, Small Outline DIMM
  • Non ECC

If you are meeting these requirements, you may have a defective module.

Also, according to Lenovo's page on the machine:

Memory
The system has 128MB or 256MB of memory standard and can be configured for up to 1GB of addressable memory. Memory options up to 512MB SDRAM SO DIMMs each can be added in the two available slots for memory expansion. The standard 128MB of memory is expandable up to 640MB and the 256MB of memory is expandable up to 768 MB of addressable memory with 64, 128, 256, or 512MB SO DIMMs without removing the 128MB SO DIMM that is standard in one of the internal slots for memory. For customers that need the maximum 1GB to which memory can be expanded, it is necessary to replace the 128MB or 256MB card with a 512MB card plus add another 512MB card in the extra slot. Only 133MHz DIMM memory can be used in this system. The use of 100MHz DIMM memory is not supported in the T23 systems.

This means yo can trouble shoot the 512MB modules individually by installing one of the original 128MB modules and one of the new 512MB modules (for a total system memory of 640MB). If it does not boot, try again with the other 512MB module. This will help you identify a defective module that may be preventing the machine from booting.

I hope this helps & good luck!

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The only thing you could do is put in a 256MB module in the slot that you have access to. Only one socket is user upgradable. The second socket is only upgradable by a Dell service center. They would have to install a second 256 module to get you to the 512MB max.

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Don it's real easy.

http://www.macinstruct.com/node/162

Slim down version

  • Pop the cover and you'll see the motherboard.
  • Atach anti-static cable to chasis of pc and touch the battery pack or pc frame.
  • Put the card in the memory slot.
  • Remvoe cable adn replace cover.
  • Re-start pc.
Note:

I wouldn't fix your pc on carpet (static reasons) or while your standing wearing socks on carpet with the Mac on the table (obviously).

Sounds simple but you've never believe how may people forget.

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Hi there,

I am almost sure that you, by accident of course, switched the memory blocs, so that you have put in one 256MB and one 512MB.

Have a look at the once you have on the table.

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66c5b73.png

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Are the memory cards the same? Try swapping the memory cards inside the computer. It is also important to go into the Setup (F2) once the new memory has been added. The setup keeps track of the hardware changes to your computer, and the additional memory needs to be saved in the Setup configuration. Please let me know what happens and thank you. Binary Bob

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Hi

The supported Memory types for Dimension 2400 Series is PC2100 (266-MHz) or PC2700 (333-MHz) DDR SDRAM (non-ECC). Supported Memory capacities are 128, 256, or 512MB and a Max if 1GB (1024MB).

The first obvious question is does the new 512MB Memory module meet the above specification? Some Memory modules are able to steep down speed.

If it does, then first ensure the new memory module is properly installed. Take ESD (ElectroStatic Discharge) precautions or you may damage the new memory module and/or the system board.

To proceed compare the system beeps and diagnostics lights color and sequence to the Advanced Troubleshooting guide.

It is possible that the new memory is DOA (Dead On Arrival). Or there is a new fault on the system. If you have access to another compatible system, you may test the new and old memory modules. You may also swap the new and old memory modules to determine if the memory slot is at fault.

Lastly, if you remove the new memory module, does the system complete POST (Power On Self Test)?. If it does you may indeed have a DOA or incompatible part.


Mike

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First of all, make sure the ram are identical, becuase having 3 different random access memory chips in the computer can cause problems. Also make sure the ram chip is sitting in there properly. Next you should check under start go to run and type in "dxdiag".See how much memory it reports the computer has. If it reports 700etc mb,, then the one memory chip might be faulty. Also, check with the system manufacturuer, and make sure you're not overclocking the computer. Overclocking is when you put too much memory in a computer and it doesnt recognize one of the chips. 700etc mb might be the maximum your computer can handle.

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Hello,

YOu computer meet the average power requirement nowadays. HOwever if you want to make more faster performance. U only need to add more memory. 1Gb is faster than my computer which is 512Mb.

Ok adding more memory make the computer faster from 1 Gb to 2GB this is much faster.

hard drive is nothing to do with the performance of the system. its only a storage of all files.

but besure to know the model of the memory before you buy. it should be identical to your current memory.

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