So does this mean i should be getting a 500w PSU or is a 400watt PSU
fine.


fj wrote:
> <neworder7@hotmail.com> wrote in message
> news:1125401386.907384.235410@g43g2000cwa.googlegr oups.com...
>
> Mxsmanic wrote:
> > neworder7@hotmail.com writes:
> >
> > > Hi could someone tell me if your CPU gets too hot around 45-55 degrees
> > > which mine sits at when its at idle or doing small tasks like word or
> > > using the net.
> >
> > Forty-five degrees isn't hot. Fifty-five is warm but conceivable if
> > ventilation in the case isn't that good. Neither should harm the
> > machine.
> >
> > > Would this affect the way windows runs?
> >
> > No.
> >
> > > As I have just noticed that my computer is starting to slow down and
> > > even sometimes stop for a second as I work on it. For example playinga
> > > MP3 or typing a word document or looking at using other programs.
> >
> > It's not the CPU, at least not at that temperature.
> >
> > If this is new, malware infection is a very likely cause, if you have
> > any kind of network connection on the machine.
>
> I have connection to the net but i have Norton 2005 and 2 spy ware
> programs that i update and scan regulary.
>
> >
> > > Im currently using a Windows XP with a AMD 2400+ CPU on a MSI NForce 2
> > > motherboard 2x 1gig sticks and 2x HD & ATI 9600. With a 300w power
> > > supply
> >
> > Does everything in the machine add up to less than 300 watts?
>
> Yeah it does 280w or something like that.
>
> If it's really ~ 280w, that would be over 90% of max - generally it's good
> practice to keep the power supply operating below, say, 70% of max. Many
> will say it should be in the 50% range.
> General, the efficiency of a PS is best around 50% [just means that for the
> power requirement for your system, the PS will generate less heat than one
> that is operating less efficient].
> If nothing else, operating close to the max exposes your system to effects
> of spikes in power requirements pushing the load over max. [As noted below,
> 'max' is really only relevant by 'rail' i.e., 5v, 3.3v, 12 volt rails.]
> Here's a calculator to estimate your power requirements.
>
> http://www.jscustompcs.com/power_supply/
> >
> > > Also any recommendations on CPU fans under £10 i should buy to replace
> > > my old one if required and PSU quiet PSU unties for under £25
> >
> > Lots of fans are less than £10 (most, I'd say). Don't skimp on fans;
> > buy good ones and keep your machine reliably cool for a long time.
> >
> > --
> > Transpose mxsmanic and gmail to reach me by e-mail.