What happens if you remove the HSF from your CPU?

[CiKoTiC]

Another VERY interesting article I missed over at Toms Hardware shows what happens if your HSF falls off or is removed on both the Intel and AMD processors.

Be sure to check out the cool video when you check it out here (http://www17.tomshardware.com/cpu/01q3/010917/index.html).

NOTE: If you don't check this out and you own an AMD processor, you might want to double check to make sure your HSF is secured and see if your bios will automaticly shut down your PC if your fan fails or the temp reaches a certain level because you wont have time to shut it down manualy. :D

[eviltechie]

saw that

but why didnt the guy unclip the hsf for the palomino before testing?
he was wiggling it on the die which could been the cause to the death of it...

[eviltechie]

hey btw

u should check out their water-cooling video too
its also got nice germen trance~ :dance: :lol:

[CiKoTiC]

I don't think the wiggle caused the temp to rise as fast as it did so to me the test is still valid. The bottom line is the HSF was removed and the CPU fried within a second or two afterwards which scares the hell out of me.

[eviltechie]

im thinking he chipped or cracked a corner of the die when he wiggled it...

[BobyJo]

Yes that is exactly what will happen if the hs/fan comes loose from a AMD cpu. They heat up so fast they will actually burn up within 1-5 seconds.
I had a 1.2mhz T-Bird x200 fsb super cpu for oc'ing.
I installed it in a friends mobo just for him to see the performance above the 1.33 he was using.
We set the case up and booted up the system, after a couple of minutes I heard a snap like a mouse trap, and within a second or two the screen went blank.
I checked and the clip holding the hs/fan had snapped off the tab.
First time this ever happened to me, but the cpu was gone within a second or two.
As far as Intel, I built with this stuff before switching to AMD a couple yrs ago. They will slow down if the hs/fan is not in place, but usually the cpu will not burn out.
This was with P3 cpu's. I don't know about P4's I have never attemted this on a P4.
They simply cost too much to take a chance.
With AMD's I do move the hs/fan around some before booting up just to see if the clip is secure.

[T-shirt]

P3's had heat protection but it relied on the chipset for feedback, this mean't in a lock/loop situation I sometimes failed and the chip still cooked
P4's have thermal control builtin to the chip, with a preditive logic circuit, in case of rising temps the circuit pedicts how long before overtemp will occuar and begins to slow the processor down in order to prevent overtemp from happening, if needed the processor will shutdown to prevent overheating.