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WC Questions

P

PS!

Weaksauce
Joined
Mar 20, 2005
Messages
107
[H]ello,

I'm planning a move to WC very soon after being a long time air-cooling user. I have a few questions which I didn't really see covered in the FAQ, so just wanted to place them here instead of page 12 on what seemed a pretty stale thread.

My primary objective is overclocking. Noise is not really an issue as all the fans I currently have running generate a ton of noise which don't really bother me. Money isn't an issue but I'm budgeting roughly $500 for the project. One thing I kind of wanted to avoid was having multiple radiators and multiple loops. I'll do it if necessary, but I'd prefer not to.

My system setup:
Lian-Li PC-75B
MSI K8N Neo4 SLI Platinum
A64 4000+
2*BFG 6800 Ultra OC
- I want to WC the CPU, both vid cards and the NB.

I'm planning on going mostly Danger Den. I'm probably gonna do a triple radiator with 3 Quad fans. (Any recommendations on fans with high flow and LEDs?)

My questions:
  • What flow would be best for cooling?
  • Is it doable with one loop?
  • Will one triple radiator get the job done?

Any recommendations as far as pump and fittings?
Here's a rough idea of what I'm going with so far:
  • PU/GPU/NB block: RBX, NV-68 SLI, MAZE4
  • radiator: Black Ice extreme III
  • fans: Quad 69.1 CFM w/LEDs
  • reservoir: Thermaltake Aquabay M1
  • tubing: Uv Reactive

Any input is appreciated.

*Edit: I guess I'll sum up what I'd like to be the requirements. All self contained inside the case (nothing external). I'd also like to avoid external relays. Again, sticking to one loop and one radiator.
 
Well first since you have the pc-75 i would run two loops by putting a chevette heater core on the cpu/NB loop and then the triple for the video cards. I think if you wanted to stick with one RAD it would be fine. All my stuff as of the last couple months has been low flow but in my opinion still the same water is water.
For the Cpu block i thnk you should try the strom block instead of the rbx. Although i only saw a 2c difference it does look better, either way you should be good. Also dont be fooled by the chevettes size, i had CPU/NB/and to aquadrives for my raptor and a 300gb and was always pleased by the performance even at low fan speeds. Just my ten cents worth :D
 
PS! said:
[H]ello,

I'm planning a move to WC very soon after being a long time air-cooling user. I have a few questions which I didn't really see covered in the FAQ, so just wanted to place them here instead of page 12 on what seemed a pretty stale thread.

My primary objective is overclocking. Noise is not really an issue as all the fans I currently have running generate a ton of noise which don't really bother me. Money isn't an issue but I'm budgeting roughly $500 for the project. One thing I kind of wanted to avoid was having multiple radiators and multiple loops. I'll do it if necessary, but I'd prefer not to.

My system setup:
Lian-Li PC-75B
MSI K8N Neo4 SLI Platinum
A64 4000+
2*BFG 6800 Ultra OC
- I want to WC the CPU, both vid cards and the NB.

I'm planning on going mostly Danger Den. I'm probably gonna do a triple radiator with 3 Quad fans. (Any recommendations on fans with high flow and LEDs?)

My questions:
  • What flow would be best for cooling?
  • Is it doable with one loop?
  • Will one triple radiator get the job done?

Any recommendations as far as pump and fittings?
Here's a rough idea of what I'm going with so far:
  • PU/GPU/NB block: RBX, NV-68 SLI, MAZE4
  • radiator: Black Ice extreme III
  • fans: Quad 69.1 CFM w/LEDs
  • reservoir: Thermaltake Aquabay M1
  • tubing: Uv Reactive

Any input is appreciated.

*Edit: I guess I'll sum up what I'd like to be the requirements. All self contained inside the case (nothing external). I'd also like to avoid external relays. Again, sticking to one loop and one radiator.
Click to expand...


  • Now that's a can of worms. The experts (cathar et al) say high flow (7/16" tubing + strong pump), TopNurse says that low-flow(6-8mm + quiet pump) is more or less equal in performance, with better bling. You're going to have to figure out for yourself who you believe.
  • Yup
  • Yup

As for your parts, they mostly look good. The NV68s are a waste of money and of pumping power, since they are difficult to install, highly restrictive and since RAM cooling is kinda pointless anyway. You're much better off with some Maze4s or some Silverprops for the GPUs.

The BIX is a good rad, but it's optimised for lower CFM fans, so you might want to look into the Black Ice Pro III instead.

Just to contrast with the gent above me, I couldn't be bothered paying the $40 premium for the 2 degrees the Storm would have gained me (And the reduced flow for my vid. cards and NB), but if you have the money by all means go for it.

Since you read the FAQ, you already know that a shroud would make a good addition, and that you are better off with a t-line than a res, so I'm guessing you have a reason for the choices you've made :)
 
Thanks. Definetely gives me more to think about. Didn't really think about how restrictive the NV-68 was, so I am now considering the Maze4's for GPU.

Any recommendations on pumps?

Also, I'm still confused as to the flow ordering.. Seems like general consensus is:
pump > res > cpu > vid > chipset > pump

So would mine be
pump > res > cpu > vid1 > vid2 > chipset > pump ??

I don't know why, but for some reason I'm thinking some of the components aren't going to be getting enough cold water. I know I probably need a T and maybe a Y line in there.. Where would be the best position for it?
 
The standard pump suggestion around here is the Laing D5 (aka swiftech/dangerden 655), but if you'd like to choose for yourself there's an excellent investigation at OCAU. The MCP600 is now only sold by AquaXtreme as the 50z, and the D5 is comparable to the D4 (the 650) with slightly more power, slightly less noise, and an adjustable speed knob.

Flow order doesn't matter in the least, since your water will only be 2-3 degrees warmer at the end of your loop than it is at the start. The heat capacity of water is so high that you'd need some serious peltiers going on to make the order of your blocks matter.

y-splitters are generally unnecessary, since they mess up your flow. Higher-restriction blocks after a y (ex. CPU) get less water than the low restriction blocks (ex. NB). If you wanted to put a Y before and after your GPU blocks (cpu and northbridge in seriel, with the GPUs parallel), that might be easier in tube-routing terms, but it likely won't help in cooling terms. I don't know what you'd use a T for except to replace that res.
 
I think you are mixing up what I have said. The key definition is what is "performance." Performance in cooling ability or performance in what it does for you in a computer.
 
Hmm, I think you got it backwards. BIX is for higher CFM fans and BIP is for low cfm fans. BIX will perform better than BIP. If your budget allows you, try take a look at the PA120.3 too. It is pretty highly praised rad. Search for other threads.
 
You're right, my mistake.

I went to the website to look it up and got the names mixed up :mad:

So yes. BIP = lower CFM, BIX = higher.
 
I was looking at buying from FCPU.. From the looks of it, everyone hates them. I'm not too worried about paying extra. Are there any recommendations for similar e-shops? (Ie: offer custom cable sleeving, can generally get everything I need from one spot, etc)
 
haelduksf said:
The experts (cathar et al) say high flow (7/16" tubing + strong pump
Click to expand...

I can point you at dozens of threads where Cathar says there is not significant difference between high-flow (big bore) and low flow (small bore) setups.

I'm not trying to argue one way or the other but I wanted to correct you. I also don't want to divert the thread with an argument so if you want links to his posts in this regard, please PM me.

I simply wanted to point out that Cathar would not tell you that high flow big bore is the _only_ way to go for performance as you have implied.
 
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