Even if the added Ram is identical to the existing it may still run slower.
As I understand it most motherboards have a "top" speed for ram that they
can cope with, provided that only two slots are filled.
BUT.... when all four slots are filled they can't cope with them all at max
speed so step down to the next lower level.
Its a tradeoff between more (theoretically) slower memory versus less faster
memory.
It depends on what you do with your computer.
Personally I have found that in practice the advantages of the extra memory
(and the performance gains that Vista can extract from that) considerably
outweigh the (debatable) downside of the slower speed.
The other point to consider of course is that extra memory is fine for 64
bit, but of significantly less benefit for 32 bit (due to hardware
allocation of a sizeable chunk of the 4Gb memory space)
(Why do you think that you never see a comercially built Vista 32 bit PC
with 4Gb ram, no matter how powerfull the rest of the machine ?)
Phypps
"Spirit" <noone@notthere.net> wrote in message
news:O4YV%23Yf4HHA.2208@TK2MSFTNGP06.phx.gbl...
You added slower RAM? Especially if some of your video is
shared memory.
"FAMA" <please@nomail.com> wrote in message
news:4C71F130-DF1D-4759-8BB8-3A6AEB61572F@microsoft.com...
>I upgrade my Vista RAM from 2 gigs to 4 gigs and the WEI that was 4,5 now
>is
> 4,1. How is this possible?
>
> Thanx
>
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