proper CPU temp & hysteresis

[milehigh]

I have a Athlon 1200 on a Soyo K7VTA board, 512 Mb PC133, 2 smallish HDD, one CD-RW, floppy and a GeForce 2MMX400 video.

I think I should be keeping the CPU under 50C and the system under 45, but I am not sure. Also, what is hysteresis temperature?

[R_1_Oh_Seven]

...amds run hot so 110o F and 80o F for mobo is fine, these go up during processes

[MrPurple]

Those temps are very high for an Athlon 1200. I know that those CPUs run hot, but those are temps that are usual to the high end 2000 XP and higher CPUs.

For that system, anything with more then 40 deg C for normal operations is going on to the high side.

[beppodmime]

Acutally, that 1200 is probably based on the T-Bird Athlon core, which are some of the hottest chips that AMD has produced. The 1400 T-Bird dissipates 73.50 Watts of heat, in contrast to the 2100+ T-Bred's 62.10 watts. Changes in manufacturing processes, like die-shrinks, usually mean a lower core-voltage and reduced heat.

Keeping that 1200 around 50 should be just fine. If you notice any system instability when doing CPU intensive tasks, then you're probably going to want to re-think your cooling solution. But, if the system is stable, and at a temp you are comfortable with, then there's really no need to get freaked out. As to your second question, I have absolutely no idea.

[Mykex]

I'm going to say that the CPU temp is a bit high but it's being caused by your case temp. If you can lower the case temp a few c you should be doing alright. If it is an older T-bird the max temp from AMD list was 90c, the next generation it dropped down to 70c. If you check around the AMD site they are all listed.

[nukes]

I'd say 45-50 under load is fine. If you can lower the case temp (maybe add intake/exhaust fans) then maybe do so, but don't worry about it. It isn't going to die at that temp.

[milehigh]

Thanks to all the responses and, BTW, as best I can explain it, the hysteresis is like a cut out temperature, at which point the MB would shut the CPU down.

I'm gonna get another case fan and keep the system temps lower which should assist in lowering the CPU temps.

[Dj-Icer]

a cpu too cold, it gets expires a little faster and too hot, it freezes up...

[beppodmime]

I'm not quite sure I understand what you're trying to say, Icer, but there's not really a such thing as cooling your CPU too much. That's why people are capable of getting screaming speeds out of their CPU overclocks with phase change and other sub-zero cooling techniques.

Although, if you cool your CPU below the dew-point, you will get condensation, but that's another story for another time.

[noprob]

this thread interested me so that I researched with just the subject of this post I'm posting & came up with this link via slashdot.
http://slashdot.org/articles/02/10/2....shtml?tid=137
all said & done,thx. for a good read.