Zitat von »t1nm4n«

I did what you are talking about with a different product, it works great, and I'd prefer parallel flow over serial as serial can build pressure and parallel you get the same temp water cooling your gpus. Here's my shoddy workmanship, but it works and you can't hardly notice the bad job from a distance

Pipes in Series
   The pressure loss is the sum of the individual losses:
      dp = dp1 + dp2 + .. + dpn (1)
      where
      p = total pressure loss (Pa, psi)
      p1..n = individual pressure loss (Pa, psi)
   The mass flow rate is the same in all pipes:
      m = m1 = m2 = .... = mn (1b)
      where
      m = mass flow (kg/s, lb/s)

Pipes in Parallel
   The pressure loss is the same in all pipes:
      dp = dp1 = dp2 = .... = dpn
   The total mass flow is the sum of the flow in each pipe:
      m = m1 + m2 + .. + mn (2b)

Edit: reference

Personally, I prefer series, and having full pressure on all water blocks.
Mostly in case a bit of debris is present in the coolant, it has a better chance to be pushed through the micro channels of the block.
I also prefer having full flow over the channels, not a big preference, but no reason not to.

And lastly, in parallel, if you do get some blockage on one of the blocks micro channels, the water distribution will be uneven between the blocks.

Zitat von »GTXJackBauer«

That's why I made sure to always have a flow meter for the loop as it's saved me in the past.

Yes, a flow meter is very useful, but it will not tell you if 1 of 2 cards in parallel has blockage... unless you have a flow meter on each card.

Zitat von »GTXJackBauer«

Zitat von »InfoSeeker«

Zitat von »GTXJackBauer«

That's why I made sure to always have a flow meter for the loop as it's saved me in the past.

Yes, a flow meter is very useful, but it will not tell you if 1 of 2 cards in parallel has blockage... unless you have a flow meter on each card.

Any blockage will show through the flow meter as well as pin point to a specific block based on it's performance in temps.

Temperature readings certainly can indicated underperformance, but a flow sensor will not provide any indication, as the flow decrease in the blocked block, will be increased proportionally in the clear block. Total flow will remain the same.