On Mar 23, 9:19 am, kony <s...@spam.com> wrote:
> On 23 Mar 2007 08:28:49 -0700, happymac.supp...@gmail.com
> wrote:
>
>
>
> >Hi,
>
> >My computer specs are as follows:
>
> >OSes: Windows XP Pro
> >Motherboard: ASUS P5ND2-SLI
> >Processor: Intel Pentium D 830 3.0GHz (not overclocked)
> >Hard Drive: 250GB SATA
> >RAM: 2x 512MB DDR 667MHz
> >Video Card: ATI Radeon X1300 PRO
> >Optical Drive: Pioneer DVR-110D DVD-RW
> >USB: 4x USB 2.0
> >Sound Card: 7.1 Channel
> >Ethernet Adapter: Intel 10/100/1000 Gigabit
>
> >I dont know but I think my Pentium D 830 is too hot. Upon startup
> >(after being left off for about 10 hours), the CPU temperature is
> >around 45C (celsius) and steadily rises to about 70C. Even when I'm
> >not doing anything on the computer the temperature varies from 70C -
> >75C. When I am doing stuff, playing games, browsing the net, etc. the
> >temperature is around 75C - 81C. When I am doing big multitasking, the
> >temperature varies from 81C -86C. Is this normal? I know Pentium D
> >chips are hot but are they supposed to be this hot?
>
> That's too hot. Was it always that hot? If not what has
> changed since then? I'm wondering if it's time to clean out
> the dust from heatsink or case intake/exhaust areas, or if
> you have a fan failing-or-failed-already.
>
> Higher room temps could account for a rise too but most
> people have rooms climate controlled enough to not
> experience so much of a change to see the temp go from
> otherwise low enough to this high.
>
> If you had installed the heatsink right before this, I'd
> wonder if it was installed properly. If it has been a long
> time and you used silicone based heatsink grease, I'd wonder
> if that had dried up and left poor interface. If it is the
> original thermal interface material and you remove the
> heatsink you would need to then clean it off and apply
> grease to remount it, the original thermal material can't be
> reused after it has melted upon first installation and
> subsequent running of system.
>
> An acceptible solution would have the system running no
> hotter than 65C when at full load for an extended period of
> time (say over 30 minutes) while the room temp is at the
> highest level you expect year-'round. If that room temp is
> not reasonably attainable at the moment, additively factor
> for it. For example if CPU was at 70C and room is expected
> to be 10C hotter in summer because of no air conditioning,
> expect 80C at some time.
>
> Full load is produced running an app stressful to the CPU.
> A linear job heavy on computational power like video
> encoding might come close enough, but the more common test
> is Prime95's Torture Test, it's Large In-Place FFTs,
> setting. The above "acceptible solution" is not the ideal,
> ideally you would have the CPU a bit cooler than 65C in that
> test, but no extra effort might be warranted if it's already
> at 55C or below. In those ranges, also consider whether CPU
> was hot due to poor case ventilation and if it was, whether
> that state of case ventilation is contributing to other
> system parts running at similarly high temp levels.
>
> Ultimately without seeing the system or knowing it's history
> we can't be certain of the cause. More info may help, or
> you may take each part of the cooling subsystem in turn and
> scrutinize it while system is off & open.


Thanks for the replies. I got the system custom-built from a computer
shop. Its been about 7 months since I got it. Since I have a see-
through case, I checked the inside and the CPU fan. There is barely
any dust. This is the current status of the fans:

Power Supply Fan: OK
GPU Fan: OK
CPU Fan (stock Intel): OK
Chassis Fan: OK

I felt the air that was coming out of the chassis fan and it was just
barely more than room temperature (around 25C, I estimated) I think
its always been this hot, I just noticed it now. Do you think I should
use a different utility to check the temperature? By the way, I
checked the motherboard temprature too. No matter what i do, the
motherboard temperature is always 40C - 42C, and I also checked the
RPM for the CPU fan, it always varies from 4000RPM - 4150RPM.