adding sli to loop - series or parallel?

[sukebe]

Hi everyone. I just picked up a GTX275 from phill on the buy&sell, and I'm going to add with my existing loop. This is my first watercooled pc. My loop will be as follows:

koolance-450 with mcp655 > fesser trip rad > apogee xt > chipset > swiftech komodox2

I know it has been asked before, but I'm getting mixed messages from different posts

My question is, will the pump be able to handle parallel setup on the gpus or will serial give me better performance, also thinking of adding another 120 or 240 fesser rad to the bottom of my case, after the gpus or will that be to much for one loop? Any advice would be awesome

I am still waiting for the pump and res to get shipped to me currently using xsps bay res with mcp 355
Here is picture of my setup atm

[Jackquelegs]

The way you have it set up..parallel is going to be much easier to accommodate

[lowfat]

The difference in performance is going to be minimal. However putting the GPU blocks in parallel will give a slight benefit to flow over your CPU.

[MpG]

Not a lot of difference either way, really. The pump definitely won't care either way. With parallel, the CPU block would see slightly higher flow through it (not likely to make a huge difference), and the GPU would see less flow (not likely to make a huge difference). Whichever makes the tube routing easier, I'd say. If you do have a rad near the bottom, series may work nicely, but otherwise I'd guess that parallel would keep things a little cleaner.

[KaptCrunch]

what size of tubing using ?

D5 can handle it

parralle only on gpu's rest serial and add a rad, hang it off rear case into loop after gpu's

rest need 1/2"(1) to 3/8"(2) TRUE wye connectors x2 and 3/8 x4 barbs for both gpu's

or make own out of 1/2" copper pipe and hose barbs

[sukebe]

Thanks for the assurance guys!

just wanted to be sure that it would gimp my water flow to the point where I would have to re-plumb everything

I think I will stick with parallel for the gpus and I will most likely be adding a 120 rad in the bottom intake on the case, because that area of the case looks like it's way too empty

Originally Posted by KaptCrunch

what size of tubing using ?

D5 can handle it

parralle only on gpu's rest serial and add a rad, hang it off rear case into loop after gpu's

rest need 1/2"(1) to 3/8"(2) TRUE wye connectors x2 and 3/8 x4 barbs for both gpu's

or make own out of 1/2" copper pipe and hose barbs

Adding y connectors wouldn't that add extra unwanted tubing?

I'm using 3/8 tubing on 7/16 barbs and a few compression fittings

I was thinking of ordering a pair of these:
Bitspower BP-MBWP-C48 G1/4" Matte Black Multi-Link Adapter - Mini- Set of 2 Products Model: BP-MBWP-C48 [BP-MBWP-C48] : Performance-PCs.com, ... sleeve it and they will come
they're nice and cheap, also make for a cleaner looking setup?

[KaptCrunch]

AH say bindman if can match cross tube to sli kit with copper and solder 7/16 hose barbs

sure would be neat n tidy

[Jackquelegs]

This is the way I have it set up

[KaptCrunch]

flow take the easyist route top gpu would get most flow jackquelegs

put green hose on bottom to share better

[Jackquelegs]

Originally Posted by KaptCrunch

flow take the easyist route top gpu would get most flow jackquelegs

put green hose on bottom to share better

Think harder