You can for example use lm-sensors.

That depends. Under stress it probably shouldn't get hotter than somewhere around 60-70 degrees. Though that can be CPU specific too - both depending on manufacturer and model.

It is also useful to keep in mind that the hotter the CPU runs, the more is its lifetime reduced. That is why heavy OC requiers good cooling solutions.

Well, I said which model I use, and I intend to use the stock fan, if that's possible. It's got heat pipes and such, so it's not the usual crap that comes with regular CPUs.

Cpu temps are a sorry subject lately.There isn't much reliable info anywhere to be found since Intel and AND both like to operate with specs that are mdeup on the spot to make their respective product look better.

Same thing goes for power consumption.

Hi,
You should really look at the link I gave you. A lot of the questions you have are handled there. Then google for the specifications for the heat sink that you have. If it is rated to handle the OC then fine. If not then look for a unit that will handle the OC you will be using. A lot of OCer's will target in the 50°C range.

Ok, I'll have a look at the links when I get home.

You might look at Mprime. It has a test cycle that pushes stuff pretty hard. It is only single threaded but you can run multiple instances at once.

I found a stress test program called System Tester, that basically calculates Pi a whole lot. It seems to run on all cores, so I'll give it a try. I'll do this during the weekend, cause I don't have time now...

ok, done with the OC now. Final clock speed: 2757.147
I could probably go higher, but I don't want to.
Here are the temperatures, when running an stress test on all four cores:

it8718-isa-0228
Adapter: ISA adapter
in0: +1.34 V (min = +0.00 V, max = +4.08 V)
in1: +1.92 V (min = +0.00 V, max = +4.08 V)
in2: +3.34 V (min = +0.00 V, max = +4.08 V)
in3: +3.06 V (min = +0.00 V, max = +4.08 V)
in4: +3.06 V (min = +0.00 V, max = +4.08 V)
in5: +3.22 V (min = +0.00 V, max = +4.08 V)
in6: +4.08 V (min = +0.00 V, max = +4.08 V)
in7: +0.21 V (min = +0.00 V, max = +4.08 V)
in8: +3.09 V
fan1: 5314 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 1117 RPM (min = 0 RPM)
fan5: 0 RPM (min = 0 RPM)
temp1: +48.0°C (low = +127.0°C, high = +127.0°C) sensor = transistor
temp2: +59.0°C (low = +127.0°C, high = +127.0°C) sensor = thermal diode
temp3: +106.0°C (low = +127.0°C, high = +127.0°C) sensor = transistor
cpu0_vid: +0.000 V


And this is when idling:

darkapostrophe@Shadowfax:~$ sensors
it8718-isa-0228
Adapter: ISA adapter
in0: +1.34 V (min = +0.00 V, max = +4.08 V)
in1: +1.92 V (min = +0.00 V, max = +4.08 V)
in2: +3.34 V (min = +0.00 V, max = +4.08 V)
in3: +3.04 V (min = +0.00 V, max = +4.08 V)
in4: +3.06 V (min = +0.00 V, max = +4.08 V)
in5: +3.22 V (min = +0.00 V, max = +4.08 V)
in6: +4.08 V (min = +0.00 V, max = +4.08 V)
in7: +0.00 V (min = +0.00 V, max = +4.08 V)
in8: +3.09 V
fan1: 2836 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 1134 RPM (min = 0 RPM)
fan5: 0 RPM (min = 0 RPM)
temp1: +43.0°C (low = +127.0°C, high = +127.0°C) sensor = transistor
temp2: +42.0°C (low = +127.0°C, high = +127.0°C) sensor = thermal diode
temp3: +87.0°C (low = +127.0°C, high = +127.0°C) sensor = transistor
cpu0_vid: +0.000 V



Any comments, anyone?

Whatever that 87/107 degrees is it's too hot except it reads that from a graphics card.

Wouldn't get all worked up about it tough - misreadings are quite common these days.

I would check those temps against what your bios says. My motherboard has three sensors on it(cpu itself also has sensor). 1:CPU (motherboard) 2:Northbridge 3:motherboard (essentially case temp).

Crash is correct that these things get miss assigned all the time. They (lm_sensors) are also often not "dialed in" to your specific motherboard. I would not just dismiss it. It could be that your northbridge's (or some other) heat sink has come loose, fan died, grease dried out, or something else. I have seen northbridges go that high. Asus had a bad run of northbridge coolers a couple of years ago.

Those things get mixed up in windows also since it seems to be pretty hard to come by info from the manufacturers what is what.

I can only fouch for the mess Intel made:

There is a temperature T which is the max for the CPU.Then there is tdelta and T - tdelta is supposed to be the temp thats shown by the monitoring software.Unfortunately T and/or tdelta or the other way around or whatever are not always the same on all the procs in one family.
Then they actually have three sensors on the die (for 2 cores) - one for each core and one in the middle.It is said that the one in the middle gets the hottest temps but that one isn't even shown.

Might have a couple of factual errors in there but thats about how confusing those things are and most this is more or less web-hearsay since there are no hard facts.

Anyway - that sensors output looks strange.Mine looks like this just sitting there:

Sys Temp: +33.0°C (high = +65.0°C, hyst = +1.0°C) sensor = thermistor
CPU Temp: +48.0°C (high = +70.0°C, hyst = +65.0°C) sensor = diode
AUX Temp: +47.5°C (high = +70.0°C, hyst = +65.0°C) sensor = thermistor

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +52.0°C (crit = +100.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1: +51.0°C (crit = +100.0°C)


Under load it goes up to 70 for the CPU's but thats oc'd from 1,8 to 3 gig.

And what else does lmsensors tell me?

in1: +6.07 V (min = +6.44 V, max = +0.42 V) ALARM
AVCC: +3.31 V (min = +0.03 V, max = +2.30 V) ALARM
3VCC: +3.31 V (min = +0.13 V, max = +1.47 V) ALARM
in4: +1.19 V (min = +0.02 V, max = +1.58 V)
in5: +1.23 V (min = +0.56 V, max = +1.54 V)
in6: +5.07 V (min = +5.73 V, max = +1.59 V) ALARM
VSB: +3.28 V (min = +3.30 V, max = +0.05 V) ALARM
VBAT: +3.07 V (min = +0.80 V, max = +1.79 V) ALARM

Oops - don't even know how this box is running with all those alarms

I'd definitely check what that 106 degree thing is about.

Just run it at default settings and see what shows up.