P4 temperature

V

Vic Baron

Running xp pro SP2 on a system with an Intel 915GAV mobo and P4 3.4
processor with 1G PC3200ram. It is in hyperthread mode.

The case is one recommended by Intel with the venturi like tube on the side.
In addition to the p/s fan ( 450W ps) and the processor fan there is one
80mm rear exhaust fan, a "card" fan ( exhaust), a side 80mm intake fan and
two 80mm front intake fans.

Installed the latest BIOS and drivers from the Intel site.

Using their( Intel) Desktop Utilities to monitor the stats -

At startup and normal operation - processor is at 49C and mobo is 38C

Running an application like MS FlightSimulator 2004 which utilizes almost
all of the processing power -

Processor temp 69C to 73C and mobo 40C to 42C. Problem is that 73C trips
the alert for processor exceeding max temp. I *could* increase the default
limit to > 73C but not sure if it is wise.

Other than the alert popping up, the system seems to run fine. Is this a
normal or acceptable temp for the p4 3.4 ( not the extreme edition)?

Thanx,

Vic Baron
 
J

Jim Macklin

At start up the whole system should be at room temperature,
it takes time to rise to a stable running temperature. 40°C
is 104°F so your temp measurements seem to be inaccurate.
Reset the CPU heatsink with a small anount of compound, did
you remember to remove the black protective tape from the
heatsink?
Intel has a heat limitation system in the CPU, it will slow
down if it gets hot, you temp monitor can be checked by
placing a remote temp sensor, such as an IR sensor, in the
case.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


|
| Running xp pro SP2 on a system with an Intel 915GAV mobo
and P4 3.4
| processor with 1G PC3200ram. It is in hyperthread mode.
|
| The case is one recommended by Intel with the venturi like
tube on the side.
| In addition to the p/s fan ( 450W ps) and the processor
fan there is one
| 80mm rear exhaust fan, a "card" fan ( exhaust), a side
80mm intake fan and
| two 80mm front intake fans.
|
| Installed the latest BIOS and drivers from the Intel site.
|
| Using their( Intel) Desktop Utilities to monitor the
stats -
|
| At startup and normal operation - processor is at 49C and
mobo is 38C
|
| Running an application like MS FlightSimulator 2004 which
utilizes almost
| all of the processing power -
|
| Processor temp 69C to 73C and mobo 40C to 42C. Problem is
that 73C trips
| the alert for processor exceeding max temp. I *could*
increase the default
| limit to > 73C but not sure if it is wise.
|
| Other than the alert popping up, the system seems to run
fine. Is this a
| normal or acceptable temp for the p4 3.4 ( not the extreme
edition)?
|
| Thanx,
|
| Vic Baron
|
|
| --
| There are 10 kinds of people - those who understand binary
and those who
| don't
|
|
 
D

David Hollway [MVP]

Vic Baron said:
Running xp pro SP2 on a system with an Intel 915GAV mobo and P4 3.4
processor with 1G PC3200ram. It is in hyperthread mode.

Processor temp 69C to 73C and mobo 40C to 42C. Problem is that 73C trips
the alert for processor exceeding max temp. I *could* increase the
default
limit to > 73C but not sure if it is wise.

Other than the alert popping up, the system seems to run fine. Is this a
normal or acceptable temp for the p4 3.4 ( not the extreme edition)?

Vic,

42C at idle is about right, but 73C under load is too high. As Jim has
suggested, check that you have installed the processor heatsink and thermal
interface material correctly. Are you using the heatsink that ships with the
boxed version of the processor? Also, check that you've plugged the heatsink
fan into the motherboard (sounds obvious, but people sometimes forget to...)
and also check that the fan isn't caught on any of the wires, and is
spinning freely. Ensure too that you have enough airflow through the
system - you have plenty of fans, but make sure they're all pushing/pulling
air in the correct direction. Air should be pulled in at the front of the
chassis, and pushed out at the rear. For comparison I have a 3.8GHz
processor here on the D915GAG motherboard (microATX version of yours) and
the temperature doesn't get that high at full load.
One more thing - check that you have the latest BIOS version - I seem to
recall reading in the D915GAG/GAV BIOS release notes something about one of
the temperatures being erroneously reported too high, although I might be
imagining it. Latest BIOS for your board is available here:
http://support.intel.com/design/motherbd/av/av_bios.htm

Hope this helps..

-David Hollway
 
V

Vic Baron

Sorry for skipping a bit - at TRUE startup the mobo is at 25C and the
process or at about 38C. Within a minute or two literally it's up to 38 for
the mobo and 49 for the processor.l

I didn't have time to assemble this one so I had a vendor do it :( -
probably should have done it myself.

Vic
 
V

Vic Baron

David -

Didn't build this system - had no time so I paid a vendor to do it. He used
the boxed processor and fan/heatsink enclosed. Already had the latest BIOS
from Intel. I'll double check the fans and see if there's a conflict. The
fan is plugged into the proper connector on the mobo and there is nothing
touching the blades.

The case sits about 6" from a wall on the left ( where the side vents are)
and about 10" from a wall behind. I'm also going to move it a bit and see if
that has any effect.

I may have to contact the vendor and have him replace or reseat the heatsink
if nothing else works.

Thanx,

Vic
 
Y

Yves Leclerc

If you are worried about heat, you should be able to add additional fans to
the case. Most newer motherboards can also monitor 2 extra fans directly.
You can also add various other types of fans that are connected to the drive
power connectors or to a "fanbus" add-on.

Make sure that front fans are lower than the rear fans and that the front
fan suck cooler air in and the rear one blow out the hot air.
 
J

Jim Macklin

My guess is that he left the black protective tape on the
heatsink. Reinstall properly.


| David -
|
| Didn't build this system - had no time so I paid a vendor
to do it. He used
| the boxed processor and fan/heatsink enclosed. Already had
the latest BIOS
| from Intel. I'll double check the fans and see if there's
a conflict. The
| fan is plugged into the proper connector on the mobo and
there is nothing
| touching the blades.
|
| The case sits about 6" from a wall on the left ( where the
side vents are)
| and about 10" from a wall behind. I'm also going to move
it a bit and see if
| that has any effect.
|
| I may have to contact the vendor and have him replace or
reseat the heatsink
| if nothing else works.
|
| Thanx,
|
| Vic
|
|
| "David Hollway [MVP]"
| message
| > | > >
| > > Running xp pro SP2 on a system with an Intel 915GAV
mobo and P4 3.4
| > > processor with 1G PC3200ram. It is in hyperthread
mode.
| > >
| > > Processor temp 69C to 73C and mobo 40C to 42C.
Problem is that 73C
| trips
| > > the alert for processor exceeding max temp. I *could*
increase the
| > > default
| > > limit to > 73C but not sure if it is wise.
| > >
| > > Other than the alert popping up, the system seems to
run fine. Is this a
| > > normal or acceptable temp for the p4 3.4 ( not the
extreme edition)?
| >
| > Vic,
| >
| > 42C at idle is about right, but 73C under load is too
high. As Jim has
| > suggested, check that you have installed the processor
heatsink and
| thermal
| > interface material correctly. Are you using the heatsink
that ships with
| the
| > boxed version of the processor? Also, check that you've
plugged the
| heatsink
| > fan into the motherboard (sounds obvious, but people
sometimes forget
| to...)
| > and also check that the fan isn't caught on any of the
wires, and is
| > spinning freely. Ensure too that you have enough airflow
through the
| > system - you have plenty of fans, but make sure they're
all
| pushing/pulling
| > air in the correct direction. Air should be pulled in at
the front of the
| > chassis, and pushed out at the rear. For comparison I
have a 3.8GHz
| > processor here on the D915GAG motherboard (microATX
version of yours) and
| > the temperature doesn't get that high at full load.
| > One more thing - check that you have the latest BIOS
version - I seem to
| > recall reading in the D915GAG/GAV BIOS release notes
something about one
| of
| > the temperatures being erroneously reported too high,
although I might be
| > imagining it. Latest BIOS for your board is available
here:
| > http://support.intel.com/design/motherbd/av/av_bios.htm
| >
| > Hope this helps..
| >
| > -David Hollway
| >
| >
|
|
 
D

David Hollway [MVP]

Good call, but I don't think the boxed LGA775 heatsink has protective tape -
on the ones I've seen, the TIM is a pad on the heatsink base, and it's
protected by a large clear plastic clip-on cover - and you'd have to be
*really* not concentrating to leave THAT in place..!
The boxed heatsink is very effective & very quiet, but *only* if it's
installed properly and there's sufficient chassis airflow. The side chassis
duct as described by the OP is recommended by Intel to ensure that the
ambient temperature above the processor heatsink is no more than 38C.

-David Hollway
 
J

Jim Macklin

The last time I bought a CPU the heatsink still used the
black tape. Looks like a good product improvement with a
plastic cover.

Still, for the system to heat so fast, there must be
something wrong with the heat sink contact or perhaps it is
installed 90 degrees out so the air flow isn't through the
fins, but is just hitting one side.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


"David Hollway [MVP]"
| Good call, but I don't think the boxed LGA775 heatsink has
protective tape -
| on the ones I've seen, the TIM is a pad on the heatsink
base, and it's
| protected by a large clear plastic clip-on cover - and
you'd have to be
| *really* not concentrating to leave THAT in place..!
| The boxed heatsink is very effective & very quiet, but
*only* if it's
| installed properly and there's sufficient chassis airflow.
The side chassis
| duct as described by the OP is recommended by Intel to
ensure that the
| ambient temperature above the processor heatsink is no
more than 38C.
|
| -David Hollway
|
in message
| | > My guess is that he left the black protective tape on
the
| > heatsink. Reinstall properly.
| >
| >
| > | > | David -
| > |
| > | Didn't build this system - had no time so I paid a
vendor
| > to do it. He used
| > | the boxed processor and fan/heatsink enclosed. Already
had
| > the latest BIOS
| > | from Intel. I'll double check the fans and see if
there's
| > a conflict. The
| > | fan is plugged into the proper connector on the mobo
and
| > there is nothing
| > | touching the blades.
| > |
| > | The case sits about 6" from a wall on the left ( where
the
| > side vents are)
| > | and about 10" from a wall behind. I'm also going to
move
| > it a bit and see if
| > | that has any effect.
| > |
| > | I may have to contact the vendor and have him replace
or
| > reseat the heatsink
| > | if nothing else works.
| > |
| > | Thanx,
| > |
| > | Vic
| > |
| > |
| > | "David Hollway [MVP]"
| > | message
| >
| > | > | > | > >
| > | > > Running xp pro SP2 on a system with an Intel
915GAV
| > mobo and P4 3.4
| > | > > processor with 1G PC3200ram. It is in hyperthread
| > mode.
| > | > >
| > | > > Processor temp 69C to 73C and mobo 40C to 42C.
| > Problem is that 73C
| > | trips
| > | > > the alert for processor exceeding max temp. I
*could*
| > increase the
| > | > > default
| > | > > limit to > 73C but not sure if it is wise.
| > | > >
| > | > > Other than the alert popping up, the system seems
to
| > run fine. Is this a
| > | > > normal or acceptable temp for the p4 3.4 ( not the
| > extreme edition)?
| > | >
| > | > Vic,
| > | >
| > | > 42C at idle is about right, but 73C under load is
too
| > high. As Jim has
| > | > suggested, check that you have installed the
processor
| > heatsink and
| > | thermal
| > | > interface material correctly. Are you using the
heatsink
| > that ships with
| > | the
| > | > boxed version of the processor? Also, check that
you've
| > plugged the
| > | heatsink
| > | > fan into the motherboard (sounds obvious, but people
| > sometimes forget
| > | to...)
| > | > and also check that the fan isn't caught on any of
the
| > wires, and is
| > | > spinning freely. Ensure too that you have enough
airflow
| > through the
| > | > system - you have plenty of fans, but make sure
they're
| > all
| > | pushing/pulling
| > | > air in the correct direction. Air should be pulled
in at
| > the front of the
| > | > chassis, and pushed out at the rear. For comparison
I
| > have a 3.8GHz
| > | > processor here on the D915GAG motherboard (microATX
| > version of yours) and
| > | > the temperature doesn't get that high at full load.
| > | > One more thing - check that you have the latest BIOS
| > version - I seem to
| > | > recall reading in the D915GAG/GAV BIOS release notes
| > something about one
| > | of
| > | > the temperatures being erroneously reported too
high,
| > although I might be
| > | > imagining it. Latest BIOS for your board is
available
| > here:
| > | >
http://support.intel.com/design/motherbd/av/av_bios.htm
| > | >
| > | > Hope this helps..
| > | >
| > | > -David Hollway
| > | >
| > | >
| > |
| > |
| >
| >
|
|
 
V

Vic Baron

Just as a follow-up - spoke to Intel t/s - they stated that the processor
should not run that hot considering the environment I have it in. They
suggested it might be a software error and to reset the BIOS and reinstall
the monitoring software. If that has no effect the next step is to remove
the CPU and reapply the thermal tape.

Won't get a chance to try the reinstall until tonight.
 
V

Vic Baron

OK - here's the resolution after working for a few days with Intel tech
support.

The P4 550 3.4G chip will happily chug along as long as it does not exceed
73.2C, so running at 70C under full load is within parameters. The fix for
the overheating alerts was not what I expected - I had to remove ALL the
extra fans that were installed leaving just the CPU fan, the rear case
exhaust fan and the PS fan. Seems like the "thermally approved" cases for
the P4 need to have unrestricted air flow. Even though the extra fans were
in the proper orientation re intake/exhaust it somehow changed the flow over
the CPU. Go figure. Took all the fans out and ran it at full load for 6
hours and it stayed happily at 68 - 70C. Tested by putting each fan in
individually and running again and then removing. The temps increased by 1
or 2C in each case. Good airflow around the side and rear of the case is
critical also. I had the case six inches from a wall on the left ( vented)
side and the temp increased - moved it diagonally and temp went back to
"normal".

Anyhow, that's my saga, the P4 seems happy as a clam. Maybe this info will
help someone else.

Thanx for the help and suggestions,

Vic
 

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