8 Krypton

Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

Hello,

I have a Latitude D420. It has 500 MB built-in internal RAM as well as my 1 GB stick that I added. However, with the 1GB stick removed, I go into the BIOS and it tells me that there is 500 MB available but only 55 MB useable. When I add the 1Gb it tells me there's 1.5 GB available but still only 55 MB usable. I also get a memory error message when I switch the computer on.

I am unable to see how much RAM is recognized in Windows becuase the small 55 MB amount always causes the computer to blue-screen when I try to install Windows off aninstallation CD.

Any suggestions - is the internal RAM (and therefore the motherboard) dead, or is there hope for this laptop?

Thanks

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15 Replies
8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

Either the slot where the 1GB is inserted is broken or you have an incompatible 1GB memory stick.

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

Hello,

Thanks for your response.

However, I don't think that would be the case as the problem still persists with the 1 GB stick removed and only using the internal 500 MB.

Thanks

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

WHERE are you seeing 55MB useable?

Post a screenshot. If there was only 55MB useable, you wouldn't be able to run Windows.

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

As I said in my original post, I am seeing the 55 MB in the BIOS. I can't run Windows.

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

You have no choice but to locate and reseat that 500MB memory module. If that doesn't work, you either have a bad module or a bad socket.

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8 Xenon

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

The base RAM isn't a module - it's soldered to the system board. 

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

I don't know how I can do that as it is internal memory which I believe is soldered to the motherboard; I don't even know where it is located. If it is possible though to reseat it I'm happy to try, if you can give me directions on how to do so.

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8 Xenon

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

It isn't possible to remove the memory.  if it has failed, you will need to replace the mainboard - which includes the processor.

http://www.parts-people.com/index.php?action=category&id=140&subid=140&refine=motherboard

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8 Krypton

RE: Dell D420 - faulty internal RAM?? Only 55 MB of 500 usable

Thanks for your response.

I am not going to change the main board; it isn't worth it for this laptop: there isn't any other solution is there?

Thanks

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