Question about custom watercooling

I'm planning a custom watercooling setup for a dedicated boinc-machine based on the following hardware:

Core2Quad Q9400
(Sapphire) Radeon HD5970
(Asus) Radeon HD5850

I'll use small radial fans for the chipset/vrm of the mainboard, but use waterblocks for the GPUs and CPU.

The question I have, is:
Do I connect the cpu, then gpus, then reservoar, then pump, then radiator, then back to cpu, as a long chain
or
Do I use T-junctions and L-junction for the last block in chain, providing fresh cold water for each of the blocks, and same (T and L) for return to reservoir?

Basically: Should the waterblocks be parallel or serial connected?

//Svein

 

*bump*

//Svein

 

Serial unless you have a particularly restrictive block.

 

And the order would be Reservoir->pump->radiator->cpu->gpu1->gpu2->reservoir?

//Svein

 

Yes.

 

The order of parts has zero effect on temps in the loop.
Recommend routing for shortest, most unobstructed loop.

 

just feed the pump first so u dont burn it, and the order doestn really matter after that.

 

pump-cpu-gpu-rad-res-pump.
Make sure you get a good pump.
Very good guide here,the best
http://www.clunk.org.uk/forums/water-cooling/33772-water-cooling-guide-beginners.html

 

Agree with this, standard format. Everything is cooled off before going into your res and pump.

 

order does matter if you have 2 rads like mine with temps.

 

Adding a rad gives temps, sweet.

 

what BBVDD2 said.