memory
I have an HP laptop. Win 7 Pro. 64 bit. Computer shows 4GB of Ram. I was going to upgrade the RAM and when I took it out it shows 2GB on the stick. WHy?
helpfinder
probably you have two 2GB RAM modules inside your laptop - so it is 4 GB together
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It also might be a built in memory (2Gb) which is not removable.
Clearly your laptop has a pair of 2GB modules, as noted above.
The real question is whether the 2nd module is soldered to the motherboard, or is in another slot located somewhere else (often under the keyboard. That will determine whether it can also be replaced.
As noted above, post the model # of the laptop, and we can look up the specifications for you. As long as it can support modules > 2GB, you can at least upgrade the easily removable module. If the other module is also removable, you can upgrade even more.
By the way, confirm that you're running a 64-bit OS (Right-click on Computer, select Properties, and it will show you). If not, 4GB is all you can use anyway.
The real question is whether the 2nd module is soldered to the motherboard, or is in another slot located somewhere else (often under the keyboard. That will determine whether it can also be replaced.
As noted above, post the model # of the laptop, and we can look up the specifications for you. As long as it can support modules > 2GB, you can at least upgrade the easily removable module. If the other module is also removable, you can upgrade even more.
By the way, confirm that you're running a 64-bit OS (Right-click on Computer, select Properties, and it will show you). If not, 4GB is all you can use anyway.
He already mentioned that he has 64bit so he's good.
Yes, I see that ... I missed that :-)
ASKER
Laptop is a HP Elitebook 2540P
You have another slot below the keyboard.
Your manual is here http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c02664684-1.pdf
Your machine has two locations for memory. See :
Page 48 Expansion memory module
Page 70 Primary memory module
Your machine can be upgraded to 8 Gb of memory. See http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c02068850-2%257CdocLocale%253Den_US%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1392915540301.876444892.199480143
Your machine has two locations for memory. See :
Page 48 Expansion memory module
Page 70 Primary memory module
Your machine can be upgraded to 8 Gb of memory. See http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c02068850-2%257CdocLocale%253Den_US%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1392915540301.876444892.199480143