Archived from groups: alt.comp.periphs.mainboard.asus (
More info?)
your front fan should be intake. Intel recomends the side fan mount
for your proccessor as well, so unless you have the proper case(spec),
I would expect more of a challenge for cooling. Of course, adding to
the hot air ciculation problem is that north bridge and faster ddr
memory. This is why the new side mount cooling spec.
Regards,
On Tue, 10 May 2005 13:30:54 -0500, "Ken" <krlorenz@comcast.net>
wrote:
>How big a case is "big". The one I got is 100% aluminum 8.25" Wide by
>19.25" Deep by 17.5" High. There is lots of room in side the case and the
>Power Supply is 2" above the cpu heat sink. Maybe I need to reverse a few
>of the fans and blow air into the case instead of out?
>
>"Paul" <nospam@needed.com> wrote in message
>news:nospam-1005051221430001@192.168.1.178...
>> In article <d5qdp4$etj$1@lust.ihug.co.nz>, "Mercury" <me@spam.com> wrote:
>>
>>> Cutting a hole in the side of the case may be the best thing to do. There
>>> are bound to be duct kits for this. Line up the hole and duct so that
>>> fresh
>>> air is delivered straight to the CPU cooler. You will find this is quite
>>> standard for Intel approved cases.
>>>
>>> Before you rip in,check that the fans blow in the right directions - from
>>> what you say, it sounds like they do.
>>>
>>
>> The explanation is right here:
>>
>>
http://www.tweaktown.com/document.php?dType=review&dId=220&dPage=3
>>
>> "Due to the case being so small, the power supply unit needs to
>> be mounted vertically rather than the usual horizontal mounting.
>> This means that the PSU sits directly on top of the CPU and on some
>> motherboards, the memory slots as well."
>>
>> As some people have noted in the past, buying a taller case, leaving
>> more room between the PSU and the CPU heatsink/fan, can improve the
>> air flow. Based on that description above, I don't know if you can
>> find a way to mount ducting or not.
>>
>> I've noticed, when examining the results of using a Zalman 7000
>> heatsink/fan, that there is a warm "cloud" of air around the
>> heatsink/fan. That can mean the fan is breathing its own exhaust,
>> over and over again (think recirculation ratio). With a properly
>> designed duct, the recirculation ratio can be dropped quite a bit,
>> so the fan only gets fresh outside air.
>>
>> The Intel fan senses air temperature, and doesn't sense the heatsink
>> temperature. That is why it should take some time before it speeds
>> up, until the case air is again heated above the threshold for the
>> Intel fan.
>>
>> There are other cooling concepts, like the BTX wind tunnel
>> cooling design. Or things like this, which may be too tall to
>> fit under your PSU:
>>
>>
http://usa.asus.com/prog/spec.asp?m=Star%20Ice&langs=09
>>
>> The trouble with side mount (wind tunnel) coolers, is cooling
>> performance. At 0.39C/W, if your room was 25C, processor was
>> dissipating 100 watts, the CPU case temp would be 25+100*0.39=64C.
>> This would clearly be a marginal design, in an un-airconditioned
>> room in the summer. A cooler rated at 0.20-0.25 would allow more
>> design margin.
>>
>>
http://www.tomshardware.com/firstlook/20050104/asus-starice-05.html
>>
>> An XP-120 (or a zalman 7700) and a tower case will give optimal
>> cooling. Perhaps you have a lower powered computer you could stick
>> in the PC30 case ?
>>
>> HTH,
>> Paul
>>
>>>
>>> "Ken" <krlorenz@comcast.net> wrote in message
>>> news:RoudnfNBP9M2Bx3fRVn-2A@comcast.com...
>>> >I have an Asus P5P800 MB, a 540J processor, 1 Gig of Kingston DDR 400
>>> >memory an ATI Radon 9600 XT video card all in a big mid tower PC 30 Lian
>>> >Li
>>> >Aluminum case. The power supply is a 470 Watt PC Power & Cooling
>>> >Silencer.
>>> >The case has 4 cooling fans, not counting the one in the power supply!
>>> >I
>>> >know the Prescott processors run hotter but the intel supplied heat sink
>>> >fan runs @ 5000+ rpm when the system is under load. In fact the heat
>>> >sink
>>> >fan runs at an relatively high rate even when the system is sitting idle
>>> >for several hours. The cpu temperature runs between 28C and 50C
>>> >depending
>>> >on the load. What I don't understand is as soon as I take the cover off
>>> >the case the heat sink fan gradually slow down to "normal" or 2657 rpm
>>> >and
>>> >all is well no matter how much of a load is on the cpu. During all this
>>> >the MB temperature never varies much from 30C. Short of cutting a whole
>>> >in
>>> >the side of my case, does anybody have an idea why the heat sink fan
>>> >thinks
>>> >it has to try to take off when the side cover is on the case?
>>> >
>
Facebook
Twitter
Instagram