How hot

[Mr. $T$]

Just wanted to Know how hot a P4 gets under load and, If you do reply please tell me how fast it is.:D

[YMAN]

I do not have a P4, I mainly stick to A.M.D.
However I do have many intels lying around.
I'd say you will not want the core to get more
than 50C load, preferably 40C, or lower.
I also heard in many places that as the P4
core gets hotter is slows down, possibly as
failsafe feature. In fact (Don't Try It) If you were
to remove the heatsink while it was running
it would slow almost to a stop but still keep the
system alive. (preventing a crash)
If you were the beginner overclocker I would say
go with the P4, but the AMD athlon/thunderbird/XP
CPUs have been proven better preforming cores.
The newer XP CPUs by AMD also have a feature that
can shut down the CPU under overheating conditions.

Overall I would say, Personally I'd go with an A.M.D. XP,
over the Pentium 4, but the choice is yours to make.

[ol' man]

WHAT IS GOING ON HERE!

[YMAN]

Mr. $T$ I'd also like to say,
WELCOME TO THE FORUMS!!!

[Mr. $T$]

I have a frend that works at a computer shop and he fryed a 1.5 P4 with a MASSIVE heat sink (4x4x3) with a nice sized fan in 3 minutes:D

[YMAN]

Now thats pathetic for an intel P4,
The thermal transfer was definetly not up to par!!!

You will want arctic silver 2 nomatter what the CPU is.

Hyposthesis of senario:
There was definatly POOR thermal transfer, and having
such a big heatsink ontop with little to no thermal transfer
will cause all the heat to build up causing fatal failure!!!
(Thus because little to no air hit the core directly to disipate heat)
Conclusion: User Error/No Thermal Compound or Poor quality compound

[Mr. $T$]

the contact was good and it was an intel hsf. I when I first heard it I could not believe it but i saw the mobo and cpu and it was all true.

[YMAN]

Contact may be good but not the thermal transfer stuff.
I have no doubts, thats the only thing that can kill a P4
like that, asides from the oc stuff, like volts etc.

[Yodums]

Weird.. He had to do something.. They just don't fry themselves.. Did he overclock?

[Mr. $T$]

No overclocking, all settings on the motherboard were at defalt. The thermal compound on intel fans (and A.M.D.) is already on the heatsink when it ships so whatever the compound is it was an intel product.

[Miss winnie]

heh my CRAZY intel P4 1.5Ghz goes up to around... 60C under load haha my comp is weird..:D

[Burning Phoenix]

I think that is it's max with the internal thermal throttling P4's have. I haven't heard of p4's going past that point.

[Yodums]

Well..

Not every P4 runs at the same temperatures.. They will all run differently according to the air flow in your case.. Room temperature..

With good air flow and good room temperature.. I've seen mostly 44 full load and 27 idle.

[Qualtran]

My dad has a P-4 1.7 with a stock HSF and it idles around 30C and full loads at 35C. Thats according to Mobo Monitor 5.

[CrystalMethod]

Originally posted by Mr. $T$
No overclocking, all settings on the motherboard were at defalt. The thermal compound on intel fans (and A.M.D.) is already on the heatsink when it ships so whatever the compound is it was an intel product.
You sure there was some sort of thermal interface? I know the 478 chips have a thermal pad that comes on the heatsink, but the 423 chips you have to apply the thermal compound yourself.

[Yodums]

Originally posted by Mr. $T$
No overclocking, all settings on the motherboard were at defalt. The thermal compound on intel fans (and A.M.D.) is already on the heatsink when it ships so whatever the compound is it was an intel product.

Well like I said .. Thinks dont fry itself :) If you leave something on your desk.. It'll stay there unless someone moves it :)