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Will adding another rad lower my temps? - Page 2

post #11 of 19
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Quote:
Originally Posted by CyberDruid View Post
To make sense of your question some more info is needed. Rad model and type of fans and how fast you run them. Pump Type. WB type(s). TIM used. Arrangement of rad (to determine if your airflow could be improved). There's more to it than you might think. The same stuff will be more or less effective depending on air flow, how well you have the waterblock mounted and how effective the TIM is at transferring heat load. You might want to try fine tuning what you have before spending more.

EDIT. Saw your Koolance Exos post. That is probably the problem. I never use or reccomend "all-in-one" kits and I have not seen anything from Koolance in terms of rads or pumps that are up to par with the stuff I use or reccomend. It looks cool an all but it's far from being an efficient LC set up.
Well the pump in the thing is good. I know that. Perhaps the rad is the weak point. In that case another rad might help.
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post #12 of 19
Quote:
Originally Posted by james... View Post
Well the pump in the thing is good. I know that. Perhaps the rad is the weak point. In that case another rad might help.
Well I did some searching, the pump in your unit is a PMP-400 which does 2.3 g/min so 138GPH. Compared to the Swiftech MCP655 (I'm using this pump as the example because it seems to be a nice standard pump that many use) which does 317GPH. So right off the bat it seems that your pump may be one of the issues.
post #13 of 19
The pump will not be an issue. The PMP-400 is basically just a 20W DDC-pump so you've got plenty of head to add another rad. Flow is not nearly as important to consider as head, when you think about restriction.

Swiftech MCP-655 has 10ft of head.
PMP-400(Laing DDC 20W) has 23(!)ft of head.

GPH is how fast you can move the water, head is your pumps "torque". A radiator is one of the least restrictive components you have in a loop. Blocks, tubing, reservoirs etc. offers more resistance than a typical radiator.
Edited by kimosabi - 6/10/10 at 6:28am
post #14 of 19
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Quote:
Originally Posted by Aqualoon View Post
Well I did some searching, the pump in your unit is a PMP-400 which does 2.3 g/min so 138GPH. Compared to the Swiftech MCP655 (I'm using this pump as the example because it seems to be a nice standard pump that many use) which does 317GPH. So right off the bat it seems that your pump may be one of the issues.
I have a hard time believing that.

The pump has a speed control from 1-10. On 1 it flows very slowly, and on 10 it goes quite fast. I hardly notice much different in temps when I adjust it. So how could it be the water speed?


Quote:
Originally Posted by kimosabi View Post
The pump will not be an issue. The PMP-400 is basically just a 20W DDC-pump so you've got plenty of head to add another rad. Flow is not nearly as important to consider as head, when you think about restriction.

Swiftech MCP-655 has 10ft of head.
PMP-400(Laing DDC 20W) has 23(!)ft of head.
That's what I thought.
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post #15 of 19
I wouldn't recommend adding another rad if you're cooling the CPU only. You might wanna look into the fans that's pre-installed in that kit. There might be some gains in swapping them out for some better fans or making a push/pull kinda deal on it. You'd probably have to remove the cover around the rad to make that happen though.

Your temps ain't that bad considering your watertemp IMO, depending on your overclock and voltage ofcourse. What type of waterblock are you using?
post #16 of 19
Thread Starter 
Quote:
Originally Posted by kimosabi View Post
I wouldn't recommend adding another rad if you're cooling the CPU only. You might wanna look into the fans that's pre-installed in that kit. There might be some gains in swapping them out for some better fans or making a push/pull kinda deal on it. You'd probably have to remove the cover around the rad to make that happen though.

Your temps ain't that bad considering your watertemp IMO, depending on your overclock and voltage ofcourse. What type of waterblock are you using?
Well I'm cooling the whole motherboard too...didn't know if you knew that.

Anyway, I'm using this block.

http://www.koolance.com/water-coolin...product_id=755
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post #17 of 19
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So what's the final word?

Another rad = better temps? Or waste of cash?
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post #18 of 19
If your loaded water temps are 28* and ambient is 22*, the maximum (and I mean absolute, as in you'll never quite get there) is another 6 degrees lower CPU temps. You'd probably be better off checking your thermal paste is good, and get a new CPU block if you really want low temps.

I think you're asking the wrong question to be honest. You shouldn't be saying "how do I decrease temps?", you should ask "are my temps anything to be concerned about?". 60* is not anything dangerous, hell my chip has been up to 85* on my water cooling setup.
    
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post #19 of 19
Yup, 85C is what's considered "stretching it but ok" on the i7's.

I wouldn't add another rad OP. Reseat, mount better fans etc. Adding a second rad would probably help a little but it all depends on how hardcore you are about it. I've seen more stupid setups(just look at mine) so I'm a bit on the fence here. You won't see any magic numbers though. Probably a temp decrease like angrysasquatch mentioned.
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