Ok, so after reading up on this forum and xtremesystems I have come to the conclusion that was is "best" is pretty hard to nail down. Anyways, here is what I want my loop to look like, and what it may look like in the future. I don't want to go crazy on parts, but I do want to have a good LC solution.
For my first foray, I will have a 2 block loop, one for my C2D 8400 and another for an ATI 4890. In the future, I suspect that I will have an i7 or i5, and possibly a 2nd 4890 in XFire configuration, so I want to plan my stuff for that scenario. I will want to Overclock everything.
Pump - I'm pretty confused on this. From what I've gathered, GPM doesn't really matter that much because 1) you never see loops doing more than 3GPM and 2) Head pressure is most important.
So I was looking both at the Laing D5 and DDC2 pumps. The D5 has more GPM, but the DDC2 has more head pressure. Am I to believe then, that the DDC2 (with a Petra Top) pump is better for a 2/3 block loop? The info I got was from
here.
CPU Block - So it seems that highly restrictive CPU blocks do the best, however, because of the lower GPM that is allowed to flow through, its not the best for multi block loops. I was first looking at the Swiftech Apogee GTZ, but it appears that the DTek Fuzion V2 gets almost as good of numbers, but has a higher GPM flow rate. For a 2 or 3 Block loop, what kind of flow rate should I go for, and do you think the fuzion v2 will be a good choice?
Radiator - I will definitely be getting a 3x120mm rad (will probably stick 3 YL Fans on it). It appears that Swiftech MCR320, ThermoChill PA120.3, XSPC RX360 are the main contenders. I don't plan on using fans faster than 1500 RPM, and it appears that heat dissipation amongst those 3 at that setting is almost identical. Also, even though the swiftech has a higher pressure drop than the other 2, it doesn't really affect the loop since I'll see higher pressure drops elsewhere in the loop. Since the swiftech costs half as much as the thermochill, I was thinking of going with the MCR320. Thoughts?
GPU Block - From what I've read on this, full coverage blocks are great for the memory and voltage regulators; however, they can sometimes really bog down the loop, while a GPU only block is better for the overall loop, while not cooling the memory. Any thoughts on this? The blocks I was considering were either the
Koolance VID-487 or the
XSPC Razor 4890. Haven't seen reviews, so I'm not sure which is better.
As far as tubing. It seems like 7/16 gives the same performance as 1/2, allows for a snug fit, and can handle tighter bends and such.
I haven't really looked into fittings because I just haven't gotten that far yet.
As far as reservoirs, I'm liking the 5.25 bay ones since I have a ton of room in that part of my case.
Once again, thanks. I'm a total noob, so let me know your thoughts, or if I got any assumptions wrong. Thanks!