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Updated - okay, ran three tests total so far.

1st test was above. 345W TEC on crappy old Maze-4.

2nd test was 360W TEC on Arctic Web.

3rd test was 345W TEC on Arctic Web.

Suprising...

Okay - been continuing with the tests - should have all the graphs and whatnot finished up in the next couple of days.

Basically, here's the skinny.

The new 345W TEC on the Maze-4 block that...

I've made a couple for experimenting with how the pelt performs with direct water contact. Doesn't work real well. Not enough surface area to move heat off the pelt with direct water contact.

Not if it is potted. You would be fine with direct water to TEC contact if it is a potted TEC. I believe that Swiftech put out a product that did exactly this for a while.

PSP-600-48

Output Specifications:
Output Voltage: 48 Volts DC
Min Current: 0 Amps
Max Current: 12.5 Amps
Power: 600 Watts

Right - this goes along exactly with what I was saying.

360W = Rated 24v * 15A
360W = Your 19v * 18.94A

The 18.94amps is still well within the capacity of the SE-600-24 power supply, which is...

I don't think it would change temperatures at all, as the water temp leaving the block remained steady the entire time, which means that the block was fairly saturated with heat. It wasn't able to...

All completely true. But it is still a basic resistive DC element, so the rest of the circuit will operate under normal DC laws.




That is the exact premise of this test. I am comparing...

Dont' need a kill-a-watt. I have all the test equipment I need, I am an Energy/Utilities Engineer by trade.

And, you are right, in this case, it would lower the wattage, because I am current...

Like I said, in this instance, it won't make a difference, because I am at the amp limit of the PSU. So, if I lower voltage, the amperage will not go up, and I will not get better performance out of...

They do if you have loads that are greater than the max of the power supply.

That's just not true. It will go to the maximum amperage, which in this case is 42amps, assuming you have a constant power load. That's just basic DC theory.

The reason you were getting better...

Yes, it will actually. If you have a system in steady-state, and you adjust any one of the three components, those being power, voltage and amperage, the others will adjust to balance the equation. ...

Not exactly. If your heat load on the hot side of the peltier exceeds the amount of heat being removed from the hot plate, then yes... you could create problems, one of them potentially being a...

Actually, you are incorrect. The TEC is a constant wattage (power) device. It will attempt to use its rated power despite system conditions.

Also - not really sure why you are worried about a fire here. If you run the PSU without modifications at its rated load... why would you be risking fire?

That was the whole point of the test - to test the TECs in an identical environment that is limited by a single parameter - the TEC. Not sure what you mean by a pc psu putting out 41v either - that...

Well, the issue with that is the TEC is a constant wattage load. So, by turning down the voltage, the amperage produced by the psu would increase until it reached it's amps limit. That's what I was...

Oh yeah - the 680i killed the RAM that I was using. So, I have another board on order.

As a side note, I'm beginning to believe that these 680i's really are memory killers.... no matter how...

Interesting - I think the reason you were getting more of a temperature drop is because TECs rely on the amperage to drive the heat movement. If your PSU wasn't able to put out the rated amps at the...

Ummm... what would lowering the voltage in this case do? Not really sure what you are after.

The heat differential is almost exactly the same as it is for the 437W TEC - only difference is the...

At the extreme ends of the graph, it's down near -10C right before, and right after, I started the test. That's why the graph ends up with the Y axis in the negative. Otherwise, it would have been...

Okay, I got my hands on a few of the new 345W TEC's for testing. The beauty of these things is that they are 50mm x 50mm TEC's that will fit most (probably all) manufacturers TEC water blocks, as it...

Ummm... actually, your numbers are a little off. The $200 includes the neoprene and dielectric. Properly set up, you don't need the conformal on the bottom of the board if you use the neoprene...

You can check with the guy that manufactures the V8 Stinger - he might send you a guide. I doubt any of the manufacturers are going to give you a step-by-step on how to build a duplicate of one of...