OK, I know from the FITES 200 man we got ourselves some water cooling gurus here.  I know some of you have seen my bastardized water cooling setup.  Well after winning the sweet case at the lan I am motivated to upgrade my liquid cooling.  Mainly I want to quiet things down.  I overclock my i7 920 to 3.2Ghz but that's pretty much it.  My dual 5770s with fans at 100% roars like a 747 at takeoff.

My current setup uses a danger den 5 1/4" bay reservior, DD waterblock for my i7, I have a 120mm radiator and a rather large pump.  I want to move everything internal.  I'm thinking since I will be cooling 2 vid cards and my cpu I should stick to 1/2" id tubing.  I have been eyeing up a combo 5 1/4" bay reservior and pump.  I believe I will be able to mount my current rad in the cases rear 120mm fan slot.  I want to switch to all compression fittings.  I would also like to make this look nice as well since my new case has a large window.  It looks like the cases LEDs are red so I'm thinking red tubing?  I found orange UV reactive tubing.  Is a cold cathode tube what I would need to make it glow?  Though I also found red uv reactive coolant.  Would it show up ok using clear tubing and red coolant?  I'd prefer the red over the orange since the case leds are red.  Also, I run a pair of tees that split the water from the rad to run parallel to the cpu and vid cards.  Should I stick to that or is it ok to run them in series?  I'm thinking parallel would be better to keep the vid cards from getting the heat from the cpu.

So my setup I am looking at would be...

vid card cooler x2
reservior/pump combo
SLI waterblock connector
7 pair compression fittings
I'm thinking about 6' of 1/2"idx5/8"od clear tubing
7 pieces tubing wrap
2 bottles coolant
dual 12" uv cold cathode

I think that's everything.  I am reusing my cpu waterblock and radiator as well as the 2 tees I have.  Everything I have now uses barbs so the 7 pair of compression fittings are for the tees (3 individual fittings each), the reservoir/pump, vid cards, cpu, and radiator. 

Comments or suggestions?

OK.  I wasn't running the vid cards in parallel.  I was going to run them in series.  What I meant was running my vid cards in parallel with the cpu.  Basically routing from the pump will go to a tee fitting which will then feed to the cpu block and vid cards.  Then the output from the cpu and vid cards would run back into a tee then to the rad.

As for the pump I am getting the higher flow pump they offer in that unit.  It flows 2.3 gallons per minute with a 23' head pressure.  That should be plenty for 1/2" lines I would think.  Also I did learn my lesson about mounting the reservior at the highest point.  I'm gonna put it in the top bay and the rad will be mounted lower.  I also learned my lesson about making sure the tubing is long enough to pull the reservior out lol.

Thanks for the tip about the coolant.  I will seriously flush out my rad and cpu block as those are the only things I will be using from the old system.  Is a good flush with water sufficient or should I maybe run some dish detergent or other cleaning solution through it?

What you described is a parallel setup, they are tough.  The majority of coolant will take the path of least resistance (Likely your CPU block) leaving your GPU's cooking.  Try a simple/single RAD->GPU->GPU->Pump loop.

Go with water for a coolant, the non conductive coolants have less heat capacity than water.  A $0.50 gallon jug of deionized water plus some fessler anti corrosive and a drop or two of iodine will kill the funk, deionized water is also non conductive.  You will need a triple 120mm Radiator at bare minimum if you are not overclocking your video cards and keeping your i7 overclock low, my triple can barely keep my i7 cool, adding another 400w+ of load with video cards will definitely change that.  (Think ~200w of dissipation max per 120mm squared of radiator for a rough guesstimate, assuming 120x38 high perf fans are used rather than 120x25mm standard/LED fans)

Anyhoo I really like primoflex tubing and have been using Red LRT tubing and really like it, it takes about 8-10mo to cloud up in a stong mix of coolant.

EDIT, Your pump listed above is DDC based but Id ditch that and get a DDC+ (The 18w version, not the 10w DDC) and get an aftermarket pump head, XSPC makes the best performing one, you will need a ton of head pressure to deal with the restriction of three blocks.

my current loop is setup as follows:   Res -> Pump -> 3x120 rad -> CPU -> 1x120 rad -> GPU -> GPU -> Loop

Running a single 120 after the CPU pulls enough heat to make sure plenty of cool water is getting to my cards.

There are arguments about placement of blocks before/after pumps and rads, but the setup I listed above seems to work the best for my loop.

Oops, sorry I left the CPU out, I meant RAD->CPU->GPU->GPU->Pump loop.  70C max on water is crummy, decent air coolers could clobber that.  I always put my pump before my rad, the pump is a heat source in the loop as well, then the coolest water hits the CPU first.  I had planned on putting another 120mm rad between my CPU/NB and GPUs if I ever expanded out.

  What case did you get?  Can you stack two doubles in there,  a single double might be able to keep things in check with things running at stock speeds, add another 120mm and you could get by with a mild overclock.

Thats a real nice case, I guess its tough to mount a sizable radiator internally.

Update:

Well after 3 days and a pile of headaches I got everything working.  It seems the waterblocks listed above, while advertised as compatable with the 5770, needed some modding.  I can say I was none too happy about using a bench grinder and drill on 2 brand new waterblocks but I made them fit with no leaks.  I will also say if you are buying a case and space is an issue stay away from the CM storm.  It is tight.  After a 1,200w power supply(sadly not modular), 5 1/4" bay resavior/pump combo, blu ray drive, dvd burner, 4 hard drives, 2x5770s, radiator and uv lights...well there isn't room for much else.

So far I am thrilled with the temps though I need to find a way to max stress the cpu and both vid cards at the same time.  My system goes pump > cpu > gpu1 > gpu2 > rad > repeat.  I ran the farcry2 benchmark loop and my temps maxxed out at case 28c, cpu 37c, gpu1 43c, gpu2 48c.  Not bad with a single 120mm rad and it is nice and quiet.

Yep, soon as I find out where my camera walked off to.