"Clint Neufeld" <noone RemoveThis @nowhere.invalid> wrote in message
news:vBhPb.191979$JQ1.24974@pd7tw1no...
> I had similar temps to you on my P4PE board, running the stock HS/fan unit
> on a P4 2.4b processor (about 45 idle, and 65+ under load). I was
> over-clocking it to 3.06 GHz.
>
> I ended up yanking off the HS, cleaning and lapping the bottom, and
putting
> it back on with Arctic Silver 3. The temps dropped down by about 6
degrees
> idle, and about 10 degrees under load. No worries now!
A good HS is
> probably on my list of things to get, but better case ventilation would
> probably also help. I don't have any case fans, just two power supply
fans.
> Do a search for "lapping heatsinks" on Google for more details.
>
Getting case ventilation right is cheap and fairly easy, especially as a lot
of cases have such tiny intake slots. A bit of cutting with an
exacto/stanley knife and bingo! The case breathes better.
On some cases the rear fan grilles are a series of drilled holes in the back
panel and they are very restrictive. I had a case like that so I cut out
the circular grill area, using the fan as a template. I re-mounted the fan
using an old chrome wire grill and it now blows out a lot more air and the
box temp is cooler. Also check out the front intakes in the case metalwork
as well, some cases only breathe through the front fan grills and if they
are the drilled type then they probably will need cutting out.
On my power supply the air intake is a row of 3-4mm wide vertical slots
separated by about 3-4mm of metal. To get more air through I used needle
nose pliers to twist the metal between the slots 90 degrees from the PS case
face. It breathes better though if I want the ultimate I'll have to get a
two fan power supply and install chrome wire grills. I don't want to hack
the powersupply case.
The case hacking should get the temps down enough but if not then start
adding some fans.
If you CPU is mounted up under the powersupply then you may not need extra
case fans. I had a socket 7 board that had the CPU socket half down the
board along the front edge. I put it in a case with fan mounts for 2 front,
two rear and one side but did not mount any fans. The CPU ran very hot,
almost at the limit most time and I did get some heat lockups. A study of
the case and board layout showed me that though plenty of air was going out
the back of the powersupply no cool fresh air was going to the CPU fan. As
an experiment I taped up the rear and side fan holes and the CPU temps
dropped 15-20C as the air was now entering the case through the front
intakes only and this was in line with the CPU and PS intake.
Check your system out, maybe you can use a few of the above ideas.
Dave<!-- ~MESSAGE_AFTER~ -->
>> Stay informed about: i'm getting hot - help please