Question on a dual loop water cooling setup using XSPC dual pump Res. W/2X MCP355 pumps

FrozenCPU.com steered me toward a XSPC dual pump res. using 2X MCP355 pumps.

System Spec's:
AMD 955BE Phenom II
MSI 790FX-GD70 M/B
8GB 1600MHz Corsair
4X4890 XFX
Coolmaster ATCS 840

They also suggested:

1X ex-blc-569       EK Supreme Universal CPU Liquid Cooling Block - Acetal

4X ex-blc-599       EK Radeon HD4890 VGA Liquid Cooling Block - Acetal

As listed above the XSPC res. w/dual MCP355 pumps.

1X quad 120mm dual pass koolance rad.  (for the 4x4890 XFX) 

1X triple 120mm dual pass koolance rad (for the AMD 955BE)

Questions:

1. Will one of these pumps be able to keep up on the 4X EK 4890 blocks with a quad rad?

2. Same as question 1 but with a Ek cpu block on a triple rad?

3. And what size tubing should be used 3/8 or 1/2?

4. As i have already purchased the listed items, is this a safe setup? If not, i would like to try and save as many items as possible or just improve the current setup by adding to or revising this setup.

Any and all opinions or suggestions are welcome.
 
So far have had very bad luck with this build just in getting the parts. 3 cases later from FrozenCPU.com 2 have been damaged in preparation or shipping, awaiting 3rd. Missing items in newegg.com shipment due to over stuffed boxes and again rough shipping. So please help to save this build.

Thanks, Crazy V

excellent choice on the blocks. My question for you is how do you plan to fit all that in that case? I am not a fan of swiftech products myself and I honestly don't think those pumps are going to cut it. You may be fine on the cpu but I don't think you will be with 4 vga blocks and a quad rad. I don't see it pushing the liquid fast enough to adequately cool your components. As far as tubing the larger the better. Go with 1/2" if you have the room. If your gonna be squeezing alot in and have tighter bend radius's then 1/2" is not a good idea cause you'll have kinks in your loops. Sorry to hear about your ordering woes. I have never had a problem from newegg and I have been ordering from them for 4 years now. Sounds like some bad luck. They are usually pretty good at righting wrongs though.

Thanks for the advice, as for fitting it I've prefitted the triple rad in the top of the case and the quad rad mounts on the back piggy back with a koolance rad mount. the video cards will loop from the top to bottom and then back to top so as not to bother the bottom mounted psu, also allowing for less hose to the quad rad. The MCP355 pumps mount to the XSPC res in two bays. With everything in the case it fits real well with room to spare. Much better than the same basic setup in my Cosmo S type case, Minus the res and these pumps. 1/2 inch is what i was thinking but the pumps are at question. 1/2 hose fits well with plenty of room for the bends. I try to minimize the hose to as little as possible. Once again thanks. And if you could suggest some pumps as i was thinking of ordering two MCP655 pumps instead.

As for newegg.com the are care of things perfectly. Just hope the case shows up in good shape this time. FrozenCPU has also been doing a great job as to making thing go smoothly.

I use a 355 with a XSPC top. I think two of them will cut it. I don't have the res top, but they help the pump quite a bit by removing the 90 degree angle in the top of the pump.

As for the tube I use 1/2 inch barbs with 3/8 inch tubing. It's a bit of a sqeeze to get the tubing on, but the slightly smaller tubing is much easier to work with and has a far tighter fit so leaks are less likely.

Thanks, the dual res top is just like the XSPC top designs only built into the res. So if you are getting good pump performance as i also seen from a couple of pump top shoot outs i think i'll give it a go and see how things look. I'll let you know how things turn out. If you are anyone comes across anything else that may help please pass it my way. Thanks again