Guys, i'm not really into WC, but i still wanna ask one thing.
How a raidator in WC can affect the overall temperature performance?
I mean, if Brand A single fan rad and Brand B single fan rad, how come Brand A rad can perform better?

erm, depends of FPI of the radiator fins and thickness lo...

say example, BI GTX 120 vs feser 120

the fins per inch on the BI GTX 120 are much more higher, hence has better heat off load capabilities due to more heat dissipation area, but to cope with the dense fins, you need to have a good fan to push air through the fins. Hence the GTX 120 only perform well when pair with high rpm fans, eg 3k rpm fan.

and for the feser 120, due to lower FPI, air flow can easier push through the fins, with the thicker thickness, it has the required area of heat dissipation as well. So when pair with lower fan speed, it perform better than the GTX120, eg 1600rpm range. But the feser will lose to GTX120 on high speed fan as the potential of it has been utilize and higher fan speed start to utilize the dense fins gtx120 have.

the performance difference between same radiator are not so significant, its always advice to add radiator rather than swapping radiator, as adding radiator will significantly increase the heat dissipation area while swapping radiator make little difference only.

I have to agree with lichyetan on addition of rad. My core load temp has dropped significantly by 4c after adding another dual rad to my existing dual rad loop

Thanks bro lichyetan and bro metsatsu.
But i'd like to ask another thing, if the rad is actively cooled, when the heated coolant ( load from CPU ), will the rad can dissipate the heat very fast if compared between single fan rad and twin fan rad?

What I mean is, if only cooling the CPU itself, without GPU or chipset, teh result from single fan rad and tripe fan rad are the same? If it's same, that's mean triple fan rad is overkill for the CPU loop only?

Edited for one more question,
Can you guys show me how to measure FPI in radiator?

This post has been edited by AceCombat: Feb 19 2010, 08:26 PM

sample of FPI measurement from skinneelab on EK radiator
the EK radiator got 11 FPI.

dual fan radiator is always better, they are no longer overkill these days for quad cores. Especially for i7, you will need minimum dual fan radiator if you want to overclock and see significant difference vs high end air coolers.

dual fan radiator also perform better due to larger cooling area.

if on cpu only, from my experience there are no overkill. Last time my opteron 144 with mcr220qp vs syscooling old 120mm radiator setup. delta of 8c vs 4c from idle to load. they might be the same idle, but load more fans radiator will bring the cpu temp closer to ambient temp, unless u reach the optimum say around 1-2c above ambient.

nowadays seldom see an overkill setup, even i7 920 @ 4.4ghz (not so good steppings) @ 1.4v easily tapao my mcr320qp triple fan radiator.

for the speed of heat dissipation, i think dual fan radiator are also better as it surely get better cfm of air and larger cooling area to offload heat at once.

This post has been edited by lichyetan: Feb 19 2010, 10:34 PM

gotta agree with bro lichye. i've read so many countless times that if you have triple and dual rad at the same time and you are cooling CPU & gpu, use the triple rad on the CPU..

i7 is hot!

i've agree with lichyetan too. I've been running only cpu with my old swiftech mcr320 rad before, i noticed an increment of temp when adding another 2 gpu waterblock to the loop. So, i need a better temp.. that's why i upgrade 2 rad setup to the loop. But i think it's still best to separate on each setup, of which 1 rad to cpu and another rad to gpu.

pink..a forumer here just bought a pink feser one from me last week,....wahh he got balls la..respect

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Added on February 20, 2010, 10:34 pmadditional rad is always good, but, space constraints is always a nuisance...so if u factor-in that, i'm guessing its mono e mono, thicker rad with a matching cfm ...\gains may not be significant as adding rad, but who woud argue if you got space issue..

This post has been edited by vladtheimpaler: Feb 20 2010, 10:34 PM

EK block for GA-UD7

the block seem nice

lichyetan bro, was looking back again at ur setup, curios though, if u put the flow meter on inlet to cpu, wouldnt that an additional restriction to the flow before the block ? why not after the block before the res ?
have u calculated your head yet ?

Most Gigabyte motherboards have similar layout (for example the UD4P), you guys think the block will fit?

is it including the mosfet blocks ??

Looks that way

The only thing I dont like about mobo blocks is how difficult to route the tubes from CPU > MOBO > GPU - unless I go for dual loop

Ehh, there's another type of EK WB which will fit UD4P, UD5, Extreme

http://www.ekwaterblocks.com/shop/blocks/m...l-gigabyte.html
http://www.coolingconfigurator.com/waterblock/3830046991409

The UD7 WB is specifically designed for UD7 ONLY
http://www.coolingconfigurator.com/waterblock/3831109820148

This post has been edited by owikh84: Feb 21 2010, 06:00 PM

how much would my cpu temp increase if i add mobo+mosfet and gpu blocks on my existing loop? MCP320QP only. any idea?

hmm... it probably won't affect much on the idle temp, but rather the load temp would be much affected. as more heat sources are found in the loop thus harder for that rad to get rid of the heat dump

Skinee did a review a while back so im guessing u cud use its SwiftechMCR320Estimator to have a rough estimate, all'ya need its the heat load in watts. its crude, but it'll make guessing a bit easier...

From my previous experience on the MCR-220, it's around 5C or so. That's the good thing about trying things out ourselves instead of relying on reviews which are sometimes inaccurate

lol...tell that to them skinees and the lot...they use the word estimate a lot, dont think they ever aiming for being accurate though(u r talking about 100% accuracy rite...), just enough for "estimates", like for references and stuff...is not rocket science dude..

This post has been edited by vladtheimpaler: Feb 22 2010, 01:42 PM