Is 49c too hot for idle?

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I have an AMD 5600+ dual core, in a Lian Li case.  My previous cpu was a
single-core 3000+ and ran at about 35c.

This new CPU is running at 48/49c on idle.  I dont' work it particularly
hard but it has gotten in the the upper 50s when doing virus scans and
such.  Not sure if this is worrisome or not.  This is the first time
I've cheated and purchased the retail version, and used the stock
heatsink/fan and thermal pad that came with it, rather than aftermarket
and my Arctic Silver 5.

I just started a full backup, and it's gone from 48c to 57c in just
about one minute... seems to have stabilized there.  I use both
AsusProbeII and SpeedFan to monitor temps.

Is this a normal operating range, or do I need to look at better cooling
for this rig?


Re: Is 49c too hot for idle?

jmc wrote:
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My whole AMD X2 3800+ system is at about 55 degree Celsius: Asus M2N-E,
two Seagate 7200.10 harddisks, Antec TPII power supply.

   @~@   Might, Courage, Vision, SINCERITY.
  / v \  Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (Xubuntu 7.04)  Linux
   ^ ^   20:56:01 up 2 days 11:15 0 users load average: 0.01 0.02 0.00
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Re: Is 49c too hot for idle?

On Thu, 13 Sep 2007 21:33:02 +0930, jmc

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Idle doesn't matter.  That is, unless it were dangerously
high and 49C is not.

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Upper 50s is not a problem.

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Ignore your idle temp and run a CPU stress test.  Google
will find some.  Your system needs to be able to run at full
load indefinitely (for purposes of the test, run it at least
30 minutes and if the room temp is not at the highest it
will be year-round, add onto the peak temp the difference in
room temp at the hottest the room is expected to be).

Particularly good stress tests include an error checking
function, as a CPU that gets too hot may produce errors.
Prime95's Torture Test, the large in-place FFTs setting is
one such example.

Re: Is 49c too hot for idle?

My car does not need to run at its max never used 100 mph sustained to prove
its OK at 20mph to 70 mph ?
Intel have a  "Intel Thermal Analysis Tool - tat.exe"  which (around 3.3 Mb
if you can find it)
will run your CPU however many cores at 100% & show temperatures
(")_(")  mouse

Re: Is 49c too hot for idle?

On Sat, 15 Sep 2007 03:54:01 +0100, "Trimble Bracegirdle"

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You are completely wrong.  There are many many scenarios
where a process is consuming 100% of the CPU time until the
linear processing is done.


I shouted this because it cannot be stressed enough.  It is
absolutely manditory that a computer, unlike a car, be able
to "redline" at 100% indefinitely... which for practical
purposes means at least a few years time, even if this high
load eventually wears out a motherboard or PSU after those
years have passed.  Anything less is a defective system.

Based on your idea, 2/3rds of the systems on earth would
crash constantly, there are far far too many things done on
a computer that subject the CPU to continual high load.  For
example video compression, or a game where the CPU is the
bottleneck, or ZIP/RAR/etc file compression.

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This is ok for creating high temp, but the most important
part is error checking while at an elevated temp.  The point
is not knowing how hot it gets to a large extent (as any
semi-reasonable  heatsink will keep a CPU within it's safe
range from permanent damage before the CPU or motherboard
failsafe thermal shutdown takes effect), but rather if the
max temp induces an instability to processsing.  In other
words, the vast majority of CPUs will cause errors in
processing long before the heat was high enough to cause
damage, or even to crash the OS as the OS is a far smaller %
load than a continual linearized 100% processing thread.

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