Cpu Overheating

[clocker]

Originally posted by lynx@15 September 2003 - 07:00
Is that going to help if the heat being generated at present isn't being removed? As I understand it, a peltier device generates more heat, it's just that one side of the peltier device cools down, but the other side heats up more.

Dissipation of heat
Finally, Peltiers aren't magical.  All that heat they pump from one side to the other has to go somewhere, and if it has nowhere to go, the temperature of the cool side will rise.  Because of this, Peltier units for CPU cooling ship with heatsinks and fans.  And moving the heat into the ambient air of the case won't help much if the case itself doesn't have adequate ability to move that hot air.  It should be remembered that, in addition to the heat being pulled off of your CPU, the Peltier unit itself is producing Joulian heat, just like any electrical device.  Adequate case ventilation is always important, but the addition of a Peltier makes it even more so.

From the linked article

Obviously, once you move from more-or-less stock heatsink/fan cooling setups, your case ventilation becomes more critical. Both watercooling and Peltier solutions are effective because they dissipate heat from the chip more efficiently, but then you are faced with removing this extra heat effectively.

Being something of a hardware freak, I've been looking into both solutions.
Initially, watercooling looked attractive, but it would seem that the most effective layout would involve having the radiator external to the case. This complicates the plumbing , and together with a primitive fear of having circulating water so close to all my pricey electronics, has lead me to Peltier cooling.

So far, and I admit I need to do more research, it appears that in Peltier setups the heatsink fan draws air OUT, which would lend itself to a simple duct arrangement to the outside of the case. This would remove the problem of dumping hot air into the enclosure for other fans to expel.

I'm still learning/researching.

[Kunal]

i Think Ive Got A Serious Prob Wid Ma Cpu den! I Got a amd xp 2000+ and Gigabyte 7va motherboard, me cpu seems to average around 80c! i think ill take it 2 get sorted 2mo! lol

[_John_Lennon_]

Originally posted by Kunal@15 September 2003 - 16:59
i Think Ive Got A Serious Prob Wid Ma Cpu den! I Got a amd xp 2000+ and Gigabyte 7va motherboard, me cpu seems to average around 80c! i think ill take it 2 get sorted 2mo! lol

Okay, I dont care what anyone says, 80C is freaking deadly, im suprised your CPU hasnt burned up yet.

Make sure you have your heatsink firmly attached ontop of the processor.

If all else is good, or maybe the fan isnt working... but if all is really hooked up good, im thinking you should send back the CPU, it might be defective........

[Kunal]

@ _John_Lennon_, thnx! im gettin a new cpu and copper bottom cooler 2morrow!

[_John_Lennon_]

Originally posted by Kunal@16 September 2003 - 10:36
@ _John_Lennon_, thnx! im gettin a new cpu and copper bottom cooler 2morrow!

NP, hate to see them, but defective CPUs are bound to turn up.

[james_bond_rulez]

I got one of those liquid nitrogen thingy attacched to my case and the temp never went above 20 degrees? is that a good thing?

[lynx]

Here's an interesting thing which I hope someone can explain, because i certainly can't understand it.

I bought a new XP2400+ processor last week, with a big copper/alu heatsink and 8 cm fan, and it was running at 34-35C normally rising to 39C under load. Now, just 6 days later, it is running at 42C normally rising to 46C under load. Whise this is nothing to worry about in terms of current temperatures, if this rate of temperature rise continues then I am certainly going to be getting worried in a couple of weeks.

Has anyone any ideas why the temps should have risen, and can I expect further rises?