Dual loop advantages

What res is this? Didnt know any that offer both dual and series. (Or is it parallel?).

As for both in my opinion;

Dual-can split system into two parts one for cpu one for gpu lower temps in theory.
Cons-more money, more space needed, system doesn't look as clean.

Series-second pump won't do much but it will take over should the first pump fail unexpectedly.

I honestly don't see the need in either other than bragging rights/critical on uptime.
 
Its the Koolance 452X2 rev.2
More than likely stay on one loop, but as i run lots of volts through cpu/gpu for benching, i didn't know if it would help separating them.
Main reason for 2 pumps is i'm impatient and bleeding takes ages!


 
Ooo that's purdy!!

I think you'd be better of leaving it as a single loop. The pumps run in series should give slightly better oomph. Flow rate increase can't hurt. Unless you have two seperate huge rads I wouldn't bother with dual looping.

Just my opinion.
 
Damn with that amount of rad space I wouldn't think you could get much cooler.

Beautiful system! I'd stick with series to keep it clean. I don't think you could save any heat with that setup.
 
Mynight said:
Damn with that amount of rad space I wouldn't think you could get much cooler.

Beautiful system! I'd stick with series to keep it clean. I don't think you could save any heat with that setup.
Click to expand...

Thanks, be nice when the R4BE goes in and the extra water goodies ;)

I am more inclined to stick to single just to keep it clean.
 
When I first got my Titans I went dual loop and my temps were quite low - rarely broke 40 degrees no matter what volts I used.

Now I'm running a single loop and I have seen the temps rise by approx 6-8 degrees(ave gaming temps around 45 degree) certain games into the 50's

If I was to do it again I would have dual loops period.

Titans, 780/780ti's and now 290's/290X's kick out a lot of heat.

Like me, you enjoy pushing your system.

If you have the room and the funds - Go for dual loops

Biggest plus - not having to do a full drain down to swap out a card or Cpu :)
 
Thx neil, your biggest plus is the one i thought of and is a great point. Funds is not a problem, everything is ordered, if i went dual just need another meter of tube, love to go acrylic but spent a lot on the red BP fittings.
I know the water temp should stabilise but gpu straight after cpu, there must be a temp increase there in that short space.
 
run in series. I have the earlier version of this res (see link in Sig) and originally toyed with running dual loop. Adavantages of series = built in pump redundancy and better head pressure. Eventually the loop reaches equilibrium so having a loop for GPU and CPU separate only gives marginally better temps
 
wildman said:
run in series. I have the earlier version of this res (see link in Sig) and originally toyed with running dual loop. Adavantages of series = built in pump redundancy and better head pressure. Eventually the loop reaches equilibrium so having a loop for GPU and CPU separate only gives marginally better temps
Click to expand...

Was that running alarmingly high volts?? 1.5+ on cpu/gpu??(benching only!)
At normal loads i'd totally agree with single loop, but as i can't comment on a dual this is why i made the thread.
 
2500K 1.4 volts @ 5ghz + 2 x 7950 running @ 1250 core with GPU volts @ 1.24

ran Heaven and GPU temps maxed out @ 68°

prime run CPU hits 70

the above are not 24/7

24/7 is CPU @ 4.6 vcore 1.26v and GPU @ 1100 on stock volts

temps when gaming BF3/4 are cpu @ 50 and GPU's low 50's

Running a dual loop i.e CPU and GFX sepparate would maybe shave a few degrees, but for the additional hassle of double draining, extra tubing in case etc I made the call that it wasn't worth it.

If you are a hard core bencher and every point counts then I;d say yeah go for dual. If you are mainly a gamer then I;d say forget the extra hassle unless you do it for asthetics i.e different colour coolants in each chamber.
 
Actually running a single loop gives better temperatures than two loops. Though two loops with two reservoirs would have more coolant to 'carry' the heat, after a few minutes, the water temperature will reach equilibrium and the effects of the difference in coolant volume is negligible compared to the advantage a single loop has:

A single loop with multiple components has the benefit of more effectively sharing out your radiator cooling potential more efficiently (in a single loop no components that produce heat are isolated from radiators). Different components output different amounts of heat but this isn't an issue in single loop, as all the heat producing components are in the same loop as all the radiators. In two loops you may have one component in one loop requiring slightly more cooling than the other. No matter how you divide the radiators between loops, one component will be cooler and the other warmer than if you were to have a single loop.

Also components come under load at different times and therefore need different amounts of cooling depending on their loads relative to eachother, having a single loop would equalize the temperature between components better, while two loops would limit the overhead of one component when the other is relatively idle.

If both components are in acceptable temperature ranges (which is our aim), having one of them any cooler at the expensive of the other being warmer is not only of no benefit but can be a disadvantage when you want to push them for part specific benchmarks and you need that extra overhead on a single component, eg. having GPUs on a separate 360 loop to a CPU in a 240 loop would limit you more thermally on a CPU only benchmark than a single loop, which could use the extra radiator cooling power when the GPUs are idle.

Going by theory, dual loops would only match the temps of single loops if components and radiators were distributed so the heat output of components match the amount of cooling distributed between the loops AND the loads stayed balanced. All other situations single loops would provide better temps and higher reliability with two pumps.
 
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