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p4 3ghz fsb800 temps

 
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Frank Weston

External


Since: Sep 08, 2003
Posts: 62



(Msg. 16) Posted: Sun Jul 06, 2003 9:46 am
Post subject: Re: p4 3ghz fsb800 temps [Login to view extended thread Info.]
Archived from groups: alt>comp>hardware>overclocking (more info?)

I got the retail version of the processor for a dollar or two more than the
OEM and it came with the factory heatsink and fan. The factory setup looks
like it's worth about what I paid for it. It's probably fine unless you
plan to overclock or unless you don't like noise. I overclock and I hate
noise.

The Zalman 7000 was my first choice because it's quiet....so quiet I can't
hear it at full speed. It also cools very well. I rate it tops and I'd buy
it again. Over the years I've used some of the best heatsink/fan combos out
there including Alfa and Swiftech.

"Slash" <slash3.TakeThisOut@geocities.com> wrote

 > How well do those Zalman 7000 coolers do compared to a stock 3.0C's
 > heatsink? I know they're better than the older 2.4b style heatsinks,
 > but Intel includes a pretty big one with the newer processors.. is it
 > still worth swapping out?<!-- ~MESSAGE_AFTER~ -->

 >> Stay informed about: p4 3ghz fsb800 temps 
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Frank Weston

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Since: Sep 08, 2003
Posts: 62



(Msg. 17) Posted: Sun Jul 06, 2003 10:22 am
Post subject: Re: p4 3ghz fsb800 temps [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Yes, let's do think about the situation where CPU temps are below "case"
temps.

As I previously posted, my CPU/motherboard temps are 27C/33c at idle and
44C/37c under load. Room temperature is a fairly steady 24.5c. I've tested
this combo with two different P4P motherboards and three different kinds of
monitoring software, including the software ASUS provides with the
motherboard. I get the same results each time. I must conclude that I'm
getting the results that ASUS intended to be gotten. Consider that any
temperature is going to be dependant on the location and calibration of the
probes. Further consider that the board manufacturer must have something in
mind when they select and position their sensor probes.

Now the question. How can CPU idle temperature be less than motherboard
temperature? Answer:

It depends on where the probes are located, cooling efficiency and
architecture, and how much power is being used by the processor. The
motherboard probe is at the warmest point on the board. At idle the
processor generates little heat and is very efficiently cooled. It's quite
possible that it will be cooler than the hottest spot on the motherboard.
At load it's a different situation. The processor generates a lot of heat
and the motherboard changes little. My temperatures are consistent with
this scenario.

Finally, as I noted in a previous post, it is certainly possible to
position probes anywhere and get different readings; however, for a general
discussion, it's most realistic to report the temperatures gotten by the
means the board maker intended, otherwise meaningful comparisons are very
difficult to make. Another question rears it's ugly head. Is it meaningful
to compare temperatures taken from one motherboard manufacturer to another?
I'm guessing no.




"Ed Medlin" <ed DeleteThis @edmedlin.com> wrote in message
news:be960d$2fonr$1@ID-189253.news.dfncis.de...
 >
 > "jasonoc" <Jason DeleteThis @removethistoreplykoolcats.co.uk> wrote in message
 > news:be8ovo$4k4$1@sparta.btinternet.com...
  > > have re-applied cpu heatsink with some silicon, temps now are 48-50 idle
 > 55c
  > > under load so I suppose it maybe due to relatively high case temps (35
 > o/c).
  > > Will be working on getting case temps down later on in the week (think
 > I'll
  > > get rid of the scsi drive as its only 72gb anyway). now that i've got
the
  > > cpu temps more stable it's time for the overclocking to begin Smile
  > > Just hope my generic ddr 400 dosent crap out to quickly!
  > >
 > Jason,
 > My P4 runs just a couple of degrees lower than yours, and like yours, it
 > doesn't vary much between idle and heavy loads. My idle is about 43c and
 > load is low-50s. Don't pay much attention to some folks who have cpu temps
 > lower than their ambient temps. Think about it...Smile. With air cooling,
how
 > can your cpu temp be lower than the case temps? You should be fine but if
 > you raise the core v. make sure you keep an eye on your temps and try and
 > make your maximum temp stay under 60c. Wish you luck.....
 >
 > Ed
 >
 ><!-- ~MESSAGE_AFTER~ -->

 >> Stay informed about: p4 3ghz fsb800 temps 
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Icer2

External


Since: Sep 23, 2004
Posts: 4



(Msg. 18) Posted: Sun Jul 06, 2003 1:36 pm
Post subject: Re: p4 3ghz fsb800 temps [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

I agree in theory, but keep in mind the heatsink is designed to pull
heat from the CPU and drop it into the case so it possible for the two
temperatures to be quite close depending on the efficiency of the HSF
and the case's air flow properties. In my Antec 1080 AMG case, using a
Peltier cooling system (and I would assume water cooling would be
similar) with an excellent HSF to dissipate the heat its normal for
the case temp to be higher than the CPU, especially at idle. At this
moment its CPU - 23/73 CPU and Motherboard - 30/86 .

G Patricks

 >On Sun, 6 Jul 2003 07:51:24 -0500, "Ed Medlin" <ed DeleteThis @edmedlin.com> wrote:
snip
 >Don't pay much attention to some folks who have cpu temps
 >lower than their ambient temps. Think about it...Smile. With air cooling, how
 >can your cpu temp be lower than the case temps?<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: p4 3ghz fsb800 temps 
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Ed Medlin

External


Since: Sep 28, 2004
Posts: 533



(Msg. 19) Posted: Mon Jul 07, 2003 1:15 pm
Post subject: Re: p4 3ghz fsb800 temps [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"Frank Weston" <frank.DeleteThis@weston-american.com> wrote in message
news:k72cnQFF44B3rZWiU-KYuQ@comcast.com...
 > Yes, let's do think about the situation where CPU temps are below "case"
 > temps.
 >
 > As I previously posted, my CPU/motherboard temps are 27C/33c at idle and
 > 44C/37c under load. Room temperature is a fairly steady 24.5c. I've
tested
 > this combo with two different P4P motherboards and three different kinds
of
 > monitoring software, including the software ASUS provides with the
 > motherboard. I get the same results each time. I must conclude that I'm
 > getting the results that ASUS intended to be gotten. Consider that any
 > temperature is going to be dependant on the location and calibration of
the
 > probes. Further consider that the board manufacturer must have something
in
 > mind when they select and position their sensor probes.
 >
 > Now the question. How can CPU idle temperature be less than motherboard
 > temperature? Answer:
 >
 > It depends on where the probes are located, cooling efficiency and
 > architecture, and how much power is being used by the processor. The
 > motherboard probe is at the warmest point on the board. At idle the
 > processor generates little heat and is very efficiently cooled. It's
quite
 > possible that it will be cooler than the hottest spot on the motherboard.
 > At load it's a different situation. The processor generates a lot of
heat
 > and the motherboard changes little. My temperatures are consistent with
 > this scenario.
 >
 > Finally, as I noted in a previous post, it is certainly possible to
 > position probes anywhere and get different readings; however, for a
general
 > discussion, it's most realistic to report the temperatures gotten by the
 > means the board maker intended, otherwise meaningful comparisons are very
 > difficult to make. Another question rears it's ugly head. Is it
meaningful
 > to compare temperatures taken from one motherboard manufacturer to
another?
 > I'm guessing no.
 >
Quite correct. My point is that the "actual" temperature of the CPU can't
get lower than the ambient temperature with pure air cooling. Position of
probes etc will give you different readings depending on where they are
placed. I have probes on the Northbridge, HDs and one just measures air temp
in the case and those temps vary wildly from my actual MB temp in bios. The
closest temps to my CPU idle is the Northbridge temp and it is quite a bit
lower than the CPU. I suppose if you placed a thermistor on or near the
socket it would measure closer to the CPU's. You are also correct in
comparing temperatures across different manufacturers. The locations of the
probes and how they are installed can vary quite a bit. Like you said, you
are getting the temps that Asus wants you to see and this goes the same with
all manufacturers.

Ed<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: p4 3ghz fsb800 temps 
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