Parallel or Series for WC

shwaipshwaip bluffin' with my muffin Icrontian
edited December 2003 in Hardware
I just modded my old gf3 block so it'll fit on the nb, and I will be getting a new video card block soon. Should I run all 3 (NB, CPU, GPU) in series, or put it so that the nb and gpu are in series, and that entire group is in parallel with the CPU?

thx

Comments

  • madmatmadmat
    edited December 2003
    If you're running big line and a hi-flow pump I'd say run the GPU and NB parallel with the CPU and add another input to the res if you can so that each leg has it's own input to the res.
    It'd be line to pump from res, from pump to rad, from rad to Y, from Y to NB & GPU on one leg and CPU on the other, line from CPU to res, line from NB & GPU to res and you're done.
    That will lower the back pressure on the out flow on the blocks and increase the flow through the sets of blocks.
  • shwaipshwaip bluffin' with my muffin Icrontian
    edited December 2003
    it's 1/2 id line...but i wouldn't be able to add a new input to my res, so it would have to go Y - (gpu - nb)/CPU - Y - res. What do ya think?
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited December 2003
    I'm going to say series; If you have a decent capacity pump, you shouldn't have anything to worry about, as the water itself shouldn't be all that warm.
  • madmatmadmat
    edited December 2003
    It'll stop your CPU from pre-heating the water going to the NB then to the GPU although in reallity the water won't absorb enough heat to really be a problem but for overclocking it will allow you to reach a higher OC if your heat-exchanger is up to the task of removing the added heat (2-120 rad with 2-medium flow 120's running about 160cfm through the rad would do it) and your pump puts out enough flow (greater than 120gph) with a sufficient head (I'd say at least 2.5 meters) it should be fine running with the dual Y config.
    For a lower GPH pump I'd suggest getting a $30 dual inlet single outlet 5.25" bay res as it'd be cheaper than a pump and do away with the second Y as each connection added to the system is equivelent to nearly an added foot of line.
    I used to be involved in hydraulics and I'm field certified in it and I learned a lot about plumbing them and that was one of the things I hung on to was the added lengths for the connections, it breaks up the laminar flow through the pipes and adds friction to the water's flow thus making the pump work even harder.
    When you add the third WB it will have the same effect coupled with the turbulence engineered into the block to add at least 1 foot of line as seen by the pump (add 4 inches for each barb and atleast 4 inches for the block itself, more if it's of the thin fin variety) so after you add up the length of hose and added hose length you begin to see how it ballances with the pump's head or maximum linear pumping in a rise and if just the length of line being used is the same as the head your pump's flow becomes lessened which will have a negative impact on waterflow due to resistance to flow.
  • shwaipshwaip bluffin' with my muffin Icrontian
    edited December 2003
    hehe...i learned all of that good stuff 2 quarters ago in fluid + thermal systems :D

    The pump is an eheim 1250... 317 gph ... and what appears to be a 2 1/4 meter head.


    I'll take a look at what I can do to the reservoir...possibly drill + tap another input.
  • madmatmadmat
    edited December 2003
    I took an 8hr field course and did the job for 2 years, I enjoyed the hydraulics part of that job.
    Moving barrels sucked though...
  • TheLostSwedeTheLostSwede Trondheim, Norway Icrontian
    edited December 2003
    Scwaip,

    I have a 1250 too and it's no problem at all to run the stuff in series.

    Pump, Rad, CPU, VC, NB, Pump....

    I use Pump, CPU, VC, NB, Rad though. The only time you should concider runnning the stuff parallel is when you have 2 or more radiators. Only then you will see better temps.
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