[gmat]

Originally Posted by jackal2513

ok thanks

maybe ill stick with the eheims, maybe go 1250 and submerge it

Submersion is not good for two main reasons
* it does not cut noise really. Water is an excellent sound conductor. You only rely on the container itself to block sound waves - at which point you understand it's more profitable to put the pump in an air-filled container :P (egg case shaped packing foam is very fine if you want to know)
* all the excess pump heat is dumped into the coolant itself, and it's not unnoticeable...

Originally Posted by jackal2513

and maybe ill change all my blocks to innovatek

This is an expensive proposition but why not.

Originally Posted by jackal2513

as for the heatercore.... nope, i already tried that type of approach, teh problems being:

1) theres not a 120mm fan in existence that i would consider quiet, even at 7v.

So you consider a *masked* 120mm at 7V will be noisier than an *exposed* 80mm ? Please reconsider seriously. I own several fans, including some very quiet ones like the Papst 8412 NGML. The noise frequency of a 80mm is quite higher than a 120mm one, as it spins faster. Trust me, i tried your approach first (using twin 80mm exhaust fans) and it was a failure. There are some very good 120mm fans out there, that can outperform a 80mm even at 5V because of an excellent static pressure, while producing noticeably less noise, and a less intrusive noise (lower frequency = more easily blocked off).
IMHO adding a case fan to a '100% quiet' system is a symptom of failure. You must try to design the system so you'll never have to consider adding a fan as an option. Or else please re-state your goal differently :P

Get a case that is black (anodized is better, black thermal paint is fine as well), both outside and *inside*. It must be heavy for various reasons (heavy chassis, heavy panels) but a good heat conductor (aluminium is better than steel). That's why i cited Lian Li and Cooler Master. Think that you can use the case as a giant heatsink. Do *not* put insulation in it, that's trying to heal the symptoms, not the illness. If you manage well the only noise producing elements must be
* the pump (solved by insulating foam + decoupling)
* the cooling fan (mask it, on one side by the rad, on the other by the case innards or foam, make sure the sound waves cannot escape easily)
* the drives (put them in those fine silentmaxx enclosures if you've got ATA, no need to watercool them at all)
See ? No blow-out fan in the equation. Use the draft created by the cooling fan as a start, and natural convection will do the rest. Ah and put a chimney on top.

Originally Posted by jackal2513

2) a single 80mm fan on a heatercore will cool diddly squat... let alone cpu+gpu+NB+mosfets+psu+HD's.... it realise TOTALLY on fan airflow whereas that huge innovatek rad will cool with just convection the equivalent of a dual 120mm radiator. Add one small fan and it makes a marked difference.

Nobody told you to put a 80mm fan on a heatercore. As for cooling CPU+GPU+NB with a single low-power 120mm it's easily done (and with sufficient water pump power, accessories as well).

Originally Posted by jackal2513

3) i dot want teh space issues that rads and heatercores bring....

Get a good case and build it around the radiator. Or go the custom way. Never told you it was easy... You stated a very though goal to reach, don't think there's an easy solution.

Originally Posted by jackal2513

the large passive rad on the side of the case not only looks a million times better

This is purely subjective. I'll only state (objectively) that you can hide almost entirely a heatercore inside a case, or at least make it 'stealthy'. If you want subjective opinion, a completely stealth black case with no protrusion is the ideal, rads (esp. that innovatek monster) are quite ugly...

Originally Posted by jackal2513

but is far neater and allows more space for a pump enclosure and tidy wiring etc...

Again choose a case that is suitable, or build one. Cooler Master, Lian Li make good candidates.

Originally Posted by jackal2513

4) I hate heatercores, purely by pure virtue of teh fact that every forum you ever go to always bangs on about them.

And so what. There are even proofs that they are the best for watercooling PC's.
They provide excellent cooling ability in a (relatively) small package, and one can integrate them inside a case so they aren't obtrusive to the sight. If you really want to ignore the best solution, your choice.

Originally Posted by jackal2513

as for the PSU, you're right up to a point..... really good fanless PSU's are good ina system that hes decent airflow but in a system with maybe just one fan its my belief that they will soon either:

1) fry
2) switch on their backup fan if they have one

Ah-aahhh. Maybe i'm just lucky, but mine (Yesico 420W) still holds up very fine with ZERO airflow (no backup fan)... It even survived a hot summer and 24/24 operation of a fast machine with 15K rpm SCSI drives... And i tend to believe most will do fine in these conditions. They are designed to withstand high temps and high loads. I think it was our Belgian friends who tested it in adverse conditions (incredibly high loads overnight, zero airflow) and it didn't even flinch. This is due to high quality components - they come at a price, though...