Peter Trend
Senior member
Originally posted by: WoodButcher
Many folk say that flow order is unimportant other than the "res to pump" as the loop will reach a stable temp throughout its length,,, I don't know and don't care enough to run 2 or 3 temp probes in my loop to find out. My gut / instinct (and 30 years in the trades!) tells me things work best a certain way. Res above / to pump, (a dry pump doesn't work) to radiator, (removes heat including that generated by the pump) to CPU, (coolest possible water for best over-clock potential) then to NB and finally the GPU (vid cards do run hot but have higher tolerance for heat than the rest of the system).
Adding a second rad to your loop will help, even a single added anywhere except between the res and pump would make a difference provided it isn't a flow killer.
Sounds like you solved my conundrum of flow order for me really. I'll do that, and if I do get an extra radiator(it will probably be simultaneous with getting either another 4870, or a 4870x2); I will put it after the CPU and NB, and before the GPUs. Sound like a plan?
edit: note the PEX fittings have the inside edge chamfered, I do this to all my fittings and barb to lessen turbulence and flow restrictions, a little exsessive, no?:laugh:
:laugh: I'm that sort of person too. Even though I know it will barely make a difference, it's the sum of all of these minor improvements that makes everything perform well overall! Ever heard of Kaizen?
Originally posted by: aigomorla
the RX is a much better rad.
trust me, my friend cam (skinnee) just did a nice review on it.
I even asked him to do a simple flow test, which is blowing into the barbs to see how much resistance it generated, and he said it was almost non existant.
So that means its a pretty decient performer. Also his graphs showed very good promise on the larger brothers.
3/8 tubing on 1/2 barbs... mmmmm..... thats gona be a PITA to slip on. HOT Water FTW!
you could of gotten away with 7/16 tubing. They make a nice seal also on 1/2barbs. Only slightly thicker too.
Ah well, you live and learn. At least if this is a major PITA this time, I won't make the same mistake next build (probably be an i7/NVIDIA, in a couple of years time when they are a bit cheaper).
A bit off-topic here, sorry... my dad is profiting from this upgrade, I finally have enough parts to build him a new pc! Considering his current pile of s*** pc from 2002, I think he'll love the MA790FX-DQ6 with a phenom 9500 and HD3870. Im chucking in my old EMU 0404 pci card too, its not a bad system for the £350 I'm asking for him.
Thats the beauty of continuously upgrading (though I'm not sure the big changes I make can count as "continuous small improvements" lol).