My sister bought a budget PC from Harvey normal, and it has been slowing down as she loads more apps on it. It gives a Vista rating of 2. Memory and graphics are both 2
It is a NEC L series desktop, (not sure which model exacly). It has a 3Ghz P4, 512MB DDR2 667 (PC5300) Ram, running Vista home basic.
I have turned off most of the Vista desktop graphics smoothing, etc, and this has helped a bit. I want to upgrade the Ram, but am not sure about a couple of things.
The PC has 2 DDR2 slots. there is 1x stick of ram labelled "SIS DDRII 512MB 667 SLX 264M8 T6E2"
1. Can I put a 1GB stick in the other slot, or do they have to be the same size?
2. Apart from the speed, do I have to try and match the voltages or anything else or are they all 1.8V?
Any help would be appreciated.