Dell Inspiron 2650 Notebook RAM Problem

[iceware]

Hi

IÂ’ve got this Dell Inspiron 2650 notebook that IÂ’m trying to upgrade for a friend of mine. It currently only has 128MB of RAM and IÂ’m trying to install another 512MB chip to speed it up. I ran CPUz and it says the 128MB of ram installed is PC2100 but only running at 100MHz. Now the problem IÂ’m actually having is that IÂ’ve just today bought a 512MB PC2700 333MHz chip for it and when I have installed it the notebook refuses to boot. The power light comes on and you can hear the HDD and the CD-ROM but nothing else happens. From my experience and according to the technician at the computer store where I bought the chip from PC2700 should work with PC2100 fine. Would anybody know how I may get the PC2700 RAM to work ?

Also the reason why IÂ’m trying to upgrade it with PC2700 instead of PC2100 is that none of the computer stores that I shop at carry it anymore. Here are some basic specifications of the notebook :

Intel Pentium 4-m 1.6GHz Northwood processor
Intel i845D chipset
128MB PC2100 DDR RAM installed and running at 100MHz
The FSB is 400MHz

Thanks in advance

 

[Rouen]

That technician may be wrong. Did you get his creditenals? (misspelled)

I tried putting a PC133 stick in my computer which had PC100, that didn't work lol. Just replace that stick with a 512 of PC2100. OR! If his board supports dual channel get him two sticks of 256MB, which is sometimes cheaper.