Re: Have you changed a a PSU fan?
- From: "Michael Chare" <MunderscoreNEWS@xxxxxxxxxxxxxx>
- Date: Sun, 6 Jan 2008 21:22:29 -0000
"w_tom" <w_tom1@xxxxxxx> wrote in message
news:5137b64f-3af1-40f7-a115-34fd4e31a3bd@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jan 5, 12:22 pm, "Michael Chare" <MunderscoreN...@xxxxxxxxxxxxxx>
wrote:
One issue I am trying to decide is what is a sensible temperature to run
the
E6600 CPU at. The Intel web site says that the upper limit for the
temperature is 60C but is less clear as to what would be a sensible
working
temperature, and comments on this would be appreciated.
Add 20 degree C for when the computer works in a 40 degree C room.
That is a perfectly normal room temperature for a PC.
If by room temperature you mean the temperature of the room in which the PC
is located then I would say that 40C is rather hot, to much so for my
comfort.
Will your CPU
still remain below 60 degree C when its temperature increases 20
degree C? If yes, then your CPU is at perfect temperatures. Why do
we worry about high temperature? Because a CPU too hot crashes - will
not execute software accurately - can be crashed by reduced signal to
noise ratios inside the chip.
If CPU is too hot, the problem typically has no relation to chassis
air flow.
So why have case fans? If the air inside the box gets to hot the CPU fan will be blowing hot air round the metal vents and they will inevitably get hotter.
The problem is in thermal resistance between CPU and
internal chassis air. The analysis starts with a numeric spec called
degree C per watt as any minimally sufficient CPU heatsink will
provide. Confirm this spec number is being met by your system. If
not, well, why does the heatsink fan assembly not do what the
manufacturer stated?
The standard products no doubt do their job, but they make a noise. The challenge is to eliminate the noise whilst ensuring that the PC operates safely and does not get damaged by excessive temperatures.
Did he lie? Or is your heatsink misaligned on
CPU? Others will hype thermal paste as if some major difference
exists. The only major difference is price and hype. Thermal past
should make a minor improvement in the thermal conductivity (reduce
the degree C per watt measured number). Too much thermal paste (any
paste squeezed out to outside edges) may even increase the degree C
per watt performance.
You could reasonably expect a big metal heat sinks like the Scythe Ninja+ to be able to ditch more heat by natural convection and a low speed fan than the standard Intel products.
One chassis fan (with sufficient CFMs) should be more than
sufficient for any typical computer. Don't get caught up with the
hype of "More Fans". Discussed are how and where to discover heat
problems - or if it really does exist.
Typical computers make a noise, the noise comes from the fans, my goal is
to make the PC quiet, this can be achieved by using quieter fans and running
them at lower speeds.
--
Michael Chare
.
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