On Wed, 8 Mar 2000, Christiaan Nabski wrote:
>
>
> On 08/03/2000 00:34:18 Tim Angus wrote:
> >This is my setup (if anyone is interested ):
>
> I am :-) Starting to put my system to my ideal config :-)
>
> >
> >> ____________________
> >> | | |
> >> <====| PS | - This is a full-tower with a hole hacked
> >> | | | in the back at the top to relocate the
> >> |______| | PS away from the CPUs
> >> |_ |
> >>2x80mm fan->| | |
> >> <====| | |
> >> |_| |
> >> | cpu2 cpu1 - CPUs are cooled by alphas and
> >peltiers
> >> | ____ |
> >>120mm fan ->| / \ |
> >>blowing in |==|tnt1|== |
> >> | \____/ |
> >> | |
> >> | |
> >> |===NIC== ___ |
> >> | / \ |<- 80mm fan
> >> |===SBAWE32===|== | | blowing in
> >> | \___/ |
> >> |____________________|
> >
>
> >CPUs never break 32C loaded or not, and normally sit at 30C. Case temp
> >never
> >breaks 40C and generally sits around 37C.
> >
>
> I thought this was a short circuit of air flowing ? I mean the 80 mm blowing out
> and the 120 mm fan blowing in on the same side ?
Both fans on the side of the case blow IN. If you are talking about the
120mm fan WRT to the 2 80mm fans blowing out then this isn't a problem
since the CPU fans tend to suck the incoming air through the CPU heatsinks
and the 80mm fans remove the hot air leaving the heatsinks (and it IS hot
due to the peltiers). I even tried adding a duct direct from the 120mm
fan to the CPUs because of the potential problem you suggest, but it
had little or no effect. The 80mm fan near the bottom of the case is
simply present to provide an extra air flow source so that the total input
airflow is greater than the output (greater pressure inside case... more
air molecules to dissipate heat etc..) and not to cool anything directly.
> This should indeed give very low temp readings because a lot of air is blow
> almost directly on the CPU's and the MB sensor.But I am wondering if this really
> gives an accurate reading.
Sure but this is the only part of the case that gets significantly hot
since it houses the CPUs, motherboard chipset and graphics card. It IS
giving an accurate reading of what it is mearsuring. There is little point
in mearsuring temps at any other point in the case since it is likely to
be somewhat cooler than around the CPU area. In other words, the reason I
have concentrated cooling around the CPU area in because that is what
needs it!
> I thought that 1 good fan for pulling air in which really refreshes the air
> quickly would be better and 2 fans in the back to push hot air back out.
There is no use in constantly pulling cold air into the case if you have
no way of getting the hot air out... believe me, I know :(
> I don't think any one is able to cool off the whole front and push hot air out
> on all places.This would mean that the front of the pc would be filled with 5
> fans and the back also :-)
No but you can cool specific areas that need cooling. The single most
important thing I did to improve temps was to move the power supply up to
the top of the case. This alone brought my CPUs temps down 5-7C. Oh and
BTW i'm running dual 366@[EMAIL PROTECTED] :)
=====================================
Tim Angus [EMAIL PROTECTED]
ICQ UIN: 38321905
=====================================
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