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Unread 03-15-2004, 08:56 AM   #22
feathers
Cooling Neophyte
 
Join Date: Mar 2004
Location: UK
Posts: 81
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BigBen2k:

Can you give more info on: "I'd mention the "Cascade SS" (one of 5?, which I have) and "Cascade XXX" (in development) water blocks" ?

"That aside, feathers here seems to be presenting pelts/TECs from their positive side, and not acknowledging the negatives. That worries me." - Although you perhaps haven't visited my site yet.. It was created in response to all othe negative scaremongers out there who do nothing but frighten people away from peltier cooling.

I am aware that there are dangers with any extreme-cooling system.. Peltier cooling certainly has an element of risk (I will add words to that effect on my site) but the risks have been greatly exaggerated by many people.

Re: a failing peltier..

Most mobo/cpus have temperature sensors (I know it's been an issue for AMD but not for Intel). It is the user's responsibility to ensure that their mobo/cpu shuts down in the event of thermal overload (I say it's the user's responsibility because such mobos and cpus are easily obtainable with auto shutdown facilities).

An Intel CPU has in-built thermal shutdown at approx 150c (as mentioned on Intel's website).

Let's take my own system as an example:

The mobo has been set to shutdown if the temp goes above 60 celsius.

I use Winbond hardware doctor (running under windows) and it's currently set to shutdown the computer if the CPU reaches 35 celsius (I've had to raise the shutdown temp to 35 because I've just pushed up the core voltage for a new overclock to 3.7ghz). The average CPU temp is 10 celsius but it can rise to 17c when many apps are running.

If the peltier develops a problem (or pelt's PSU) then there will be a temp rise. The system will shutdown and since my pelt's external power supply is controlled by a little ATX Starter device then the computer has full control of the pelt's PSU!

"The other issue is that while pelt cooling is indeed extreme, it's really not energy efficient, and a phase change system is much more desirable, in that aspect." - Agreed... But a suitable peltier and PSU can be bought for £100.

"To present an idea is fine, but you have to make every effort to present the downside, as much as the upside." - Thanks for the advice, Ben.

I will stop by the testing section..
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