New RAM causes 4 post beeps and no video

IBM type 8141 desktop had 2 RAM chips - 256MB each.  I replaced them with two identical 1GB Crucial RAM chips each (one in each bank jsut as the other two were seated).  The machine then gives me 4 beeps and no video at startup.  In Lenovo site, it mentions 4 beeps and no video relates the the security chip of the motherboard.  Any ideas how to resolve this.  Need to upgrade this machine with this RAM.
missgjaAsked:
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burrcmCommented:
Looks to be limited as to what will work - If this is what you purchased - Part #: CT509204 " DDR PC3200 " CL=3 " Unbuffered " NON-ECC " DDR400 " 2.6V it should be OK. A closer match is - 1GB IBM 184-pin PC3200 DDR400 nonECC DIMM (p/n 22P9274) I note that the simpletech item suggested above has a different part number - SimpleTech 1GB PC3200 400MHz DDR Memory - IBM Part 22P9272, but is very close. All this would lead me to take the machine under my arm to your local supplier and have them fit a working solution for you. This avoids being stuck with something which doesn't do the job.

Chris B
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Rob HutchinsonDesktop SupportCommented:
Does it boot normally using the old chips?
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Rob HutchinsonDesktop SupportCommented:
Here's some info from SimpleTech to help get the correct memory type:
http://www.simpletech.com/upgrades/ibm/thinkcentre/m518141xxx8143xxx/
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zjadirCommented:
You can't do much about the security chips by yourself. You might need to return it to IBM or a licensed shop. You might want to check your warranty status.
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missgjaAuthor Commented:
Yes - it boots normally again after returning the orginal chips to the computer into the orginal slots - the new RAM simply did not work.  I had researched the correct RAM Type through CDW's Crucial RAM finder.  But I will look at SimpleTech.  Also, it should be under warranty still.  Thanks!
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missgjaAuthor Commented:
I need to get different RAM chips.  Thanks very much!
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