CPU temperature max?

[The_Stealthy_Shadow]

Hey, guys. Just curious. I want to know the maximum temperature for the CPU to stop operating, and the maximum temperature for the CPU to shrivel up. Any responses would be helpful.

[minibois]

Depends on the CPU, but usually at 100 C they just turn off (earlier depending on the CPU.

You should probably not let your CPU run hotter than 85 C though. (again, depending on the CPU)

[don_svetlio]

100*C is when the solder falls apart.

[intelCore]

4 minutes ago, The_Stealthy_Shadow said:

Hey, guys. Just curious. I want to know the maximum temperature for the CPU to stop operating, and the maximum temperature for the CPU to shrivel up. Any responses would be helpful.

Would actually be interesting to see which temp it takes to fry a CPU cause I have no real clue to be honest. Nowadays the only thing they tell you is the T_Case which tells you absolutely nothing except for that I guess it'll shut off when it gets to that temp!?

[DXMember]

http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html

[Enderman]

6 minutes ago, don_svetlio said:

100*C is when the solder falls apart.

solder melts at 188C

an intel CPU's TJ max is 105C where it shuts itself off

anything over 95C is unsafe

 

for AMD CPUs anything over 65-70C is unsafe

[don_svetlio]

1 minute ago, Enderman said:

solder melts at 188C

an intel CPU's TJ max is 105C where it shuts itself off

anything over 95C is unsafe

 

for AMD CPUs anything over 65-70C is unsafe

I guess I should rephrase - continuous work at 100*C WILL degrade the solder

[Guest]

1 minute ago, Enderman said:

for AMD CPUs anything over 65-70C is unsafe

i never knew that.

[Enderman]

1 minute ago, don_svetlio said:

I guess I should rephrase - continuous work at 100*C WILL degrade the solder

not necessarily

with RC you can get components that go over 150C and the solder holds up just fine

over 100C severely degrades the silicon and transistors inside the CPU, and all those tiny traces and stuff

[don_svetlio]

2 minutes ago, josephaltareb said:

i never knew that.

Depends on which CPU though. Mobile AMD chips don't have such low thermal limits and can go up to 90*C without shutting off (as shown by the 8800P).

[Guest]

Just now, don_svetlio said:

Depends on which CPU though. Mobile AMD chips don't have such low thermal limits and can go up to 90*C without shutting off (as shown by the 8800P).

i just thought that amd's cpu has a higher tdp than other intel cpus, therfore the temp before it shuts down is higher.

apparently im not.

[don_svetlio]

1 minute ago, josephaltareb said:

i just thought that amd's cpu has a higher tdp than other intel cpus, therfore the temp before it shuts down is higher.

apparently im not.

Nope - hence why the stock cooler on AMD (Wraith Cooler) is several times better than the stock cooler on Intel (which sucks balls for anything above a locked i5)

[Sharkyx1]

6 hours ago, don_svetlio said:

Nope - hence why the stock cooler on AMD (Wraith Cooler) is several times better than the stock cooler on Intel (which sucks balls for anything above a locked i5)

Ive never really agreed with the stigma on the intel cooler, as long as the mounts are correctly seated i could do 4.4 at 1.25 easy with the stock cooler at only like 80c

[Mira Yurizaki]

At around 160C, according to Wikipedia, semiconductors start decreasing in electrical resistance. Meaning it starts pulling more current. More current means more heat, which means even less resistance.

 

Basically that's the "maximum" point you can operate a semiconductor because it'll start quickly destroying itself.

[don_svetlio]

6 hours ago, Sharkyx1 said:

Ive never really agreed with the stigma on the intel cooler, as long as the mounts are correctly seated i could do 4.4 at 1.25 easy with the stock cooler at only like 80c

My 4590 on the properly mounted and pasted cooler got quite hot so I am confident it's crappy.