Hello, I have a DELL XPS 420 with 4GB ram, have recently upgraded OS to Windows 7 64bit as the 32bit was running sluggish, I am thinking of upgrading to 8GB but am totally confused after reading many blogs. Anyone know the best RAM to purchase that will suffice my problem and roughly how much this will cost? Thanks Paul Williamson
Best thing to do is go to Crucial.com and use thier memory configurator.
They gaurantee compatibility.
Crucial dixit: http://www.crucial.com/store/listparts.aspx?model=XPS%2...
Guaranteed-compatible memory: 1,8V and 2,0V memory modules ?????????
If you install 1,8v modules is not possible to install 2,0V. If you have installed 2,0v modules and you install 1,8V, the first ones won't work if you set 1,8V in bios, and you can damage the second ones if you set 2,0V. So, firstly, He must see the voltage of his modules before buy anything.
If the frecuency didn't decrease, the mobo increased the voltage to the 1,8V modules to be able to run the 2,1V ones, which is no good.
Could you tell me which is the actual voltage for the RAM in your computer?
No the frequency didn't increase, I didn't say that it did. The voltage didn't increase either.
Get CPU-Z , open up the SPD tab,take a look at Jedec specs for the ram, at lower voltage it will run slower.