TECs (peltiers) generate rather large amounts of heat by themselves, and if no form of active cooling is used will overwhelm themselves and literally go up in smoke. The hotside of the peltier must be cooled in order for the coldside to remain cold. Adding a hot CPU to the mix increases the amount of load on the heatsink. Not to mention that peltiers are not perfect. They can only pump so much heat away before they will become ineffective. REGARDLESS of the amount of cooling applied to the hotside. In fact, after a certain point peltiers lose effectiveness when cooled too much.
So you see the dilemma?
large heatsink can only move so much heat.
large peltier can move large amounts of heat.
large peltier generates large amounts of heat.
1 + GHz AMD CPUs generate large amounts of heat.
water necessary for efficient use of large peltier + AMD CPU
The inherent problems we see when dealing with peltiers and AMD CPUs is that their (peltiers) usage requires cooling ability beyond the realm of conventional fan/heatsinks. Since it is rather hard for an inexperienced person to replicate the performance of one water cooling rig to another it is difficult to gauge how effective your setup will be.
In all likelihood you will end up with a watercooling rig that will be marginally better than a top-of-the-line Fan/Heatsink.
Even with your best efforts, you'll probably end up with a marginal overclock to boot! As has been identified by myself and various others the key in overclocking AMD CPUs is voltage! Sure, cooling is necessary as we crank up the voltage, but anything in the 50-60 degree celsius range is acceptable. (Under overclocked conditions.)
In conclusion, an Alpha PEP66 with good thermal paste is more than adequate to get the most from you AMD CPU.
Newguy123 (Jan 20, 2001 11:22 p.m.):
I have a asus a7v and a tbird 800 oced to 1000 i put alot of extra fans in my case but it just isent good enough. So i bought a Peltier off my friend a Melcore peltier. Now my question is how safe are the peltiers to use?? What damage can it cause? And how can i make it safe?
Can you use any size peltier on a AMD tbird? or does it have to be a certain size?