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is this a reference 7970? - Page 2

post #11 of 59
Quote:
Originally Posted by dsmwookie View Post

The Heatkiller will be a degree or two cooler than the Komodo according to charts. It is also slightly less restrictive. The HK does not come with a back plate, but once the costs are added up they are about the same. If you are running only one or two cards then flow isn't an issue. Unless you care about 1 or 2 degrees pick the prettier block. I personally own the Komodo and it is a slick looking .


Komodo has great vrm cooling design but I havent seen vrm temp comparisons.


Komodos weakness is poor flow which will matter on single loops with low flow cpu block or multiple gpu blocks with low flow.


Heatkiller has great combination of effective cooling on gpu and VRM with mediocre flow. I like the appearance of the heat killer more.
Edited by SonDa5 - 3/21/13 at 9:53pm
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B.K.T.
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post #12 of 59
I can run a bench to show VRM/GPU temps. She never breaks 40c though. I have my 920 @ 4hz and 7970 in loop with a 480 XSPC radiator. Generally she stays around 33-36 degrees. I have 8 Yate Loon fans (medium) in push/pull. I run the pump on bare minimum and she seems to do just fine. I do understand the flow is less, I just don't think it is something to worry about till tri/quad and possibly involving a motherboard block.
post #13 of 59
Thread Starter 
Quote:
Originally Posted by dsmwookie View Post

I can run a bench to show VRM/GPU temps. She never breaks 40c though. I have my 920 @ 4hz and 7970 in loop with a 480 XSPC radiator. Generally she stays around 33-36 degrees. I have 8 Yate Loon fans (medium) in push/pull. I run the pump on bare minimum and she seems to do just fine. I do understand the flow is less, I just don't think it is something to worry about till tri/quad and possibly involving a motherboard block.
SonDa5 mentioned something about a flow issue, is this a true problem for the komodo? I hate to doubt people but I must ask for second opinions just in case smile.gif as you can see the second guy in this thread said my board wasn't a reference board!
  
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post #14 of 59
Quote:
Originally Posted by INCREDIBLEHULK View Post

SonDa5 mentioned something about a flow issue, is this a true problem for the komodo? I hate to doubt people but I must ask for second opinions just in case.


Actually the Heatkiller block isn't much better at flow than the Komodo but based on Bundymania review the HK block does flow a little better.

Some threads on flow.

http://forums.bit-tech.net/showthread.php?t=230772

http://hardforum.com/showthread.php?t=1102781

http://www.overclockers.com/forums/showthread.php?t=210844


Why is water flow important?


1. Good water flow helps keep water healthy and prevent corrosion.
2. Good water flow aids in heat transfer from block.
3. Good water flow will allow you to manually slow down pump so that it isn't so noisy and the loop will be quieter. This will also keep pump motor heat down and preserve motor life.


Optimum water flow is rate at which the water is able to transfer heat and be cooled by radiator while not inducing extra heat from pump work load.


My approach to building loop is eliminating as much resistance to water flow as possible by eliminating bends to bare minimum, using well designed blocks that not only cool well but also have high flow rate, use least amount of tubing possible.

Once you have high flow optimized loop design you can run pump at low speeds.

1 GPM bare minimum with a pump controlled to push rate will help pump stay cool by reducing its work load and preserve pump life, this also will keep pump transfer heat to minimum to the loop and help keep flow rate at optimized flow to transfer heat from blocks and pump.
Edited by SonDa5 - 3/21/13 at 8:57pm
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post #15 of 59
I would take a classic ek fc7970 over all them blocks... hugs his blocks since they are irreplaceable now lol. biggrin.gif
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post #16 of 59
Thread Starter 
you all are providing so much help i really appreciate it... if you want to even help more tongue.gif http://www.overclock.net/t/1373501/buying-this-tomorrow-good-bad-what-am-i-thinking


im stuck on whether i have a monsta 120mm at the bottom of my case exhausting in the case which might ruin the point of my rx240 being up top ... or... running the monsta as an exhaust where my dual bay res is and using a cylinder res inside the case.... or... just mounting a rx240 on the back of the case and having an external rad frown.gif
  
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post #17 of 59
Thread Starter 
Quote:
Originally Posted by tsm106 View Post

I would take a classic ek fc7970 over all them blocks... hugs his blocks since they are irreplaceable now lol. biggrin.gif

which one exactly though? im looking at http://www.frozencpu.com/search.html?mv_profile=keyword_search&mv_session_id=iV9bySMk&searchspec=ek+fc7970&go.x=0&go.y=0 i see all the different brand specific blocks but they al lhave the same model number frown.gif

is it one like this ? http://www.frozencpu.com/products/16945/ex-blc-1211/EK_Radeon_HD_7970_VGA_Liquid_Cooling_Block_-_Acrylic_CSQ_EK-FC7970_CSQ.html

http://www.frozencpu.com/products/16965/ex-blc-1214/EK_Radeon_HD_7970_VGA_Liquid_Cooling_Block_-_Acetal_Nickel_CSQ_EK-FC7970_-_Acetal_Nickel_CSQ.html#blank
Edited by INCREDIBLEHULK - 3/21/13 at 9:08pm
  
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post #18 of 59
Quote:
Originally Posted by INCREDIBLEHULK View Post

you all are providing so much help i really appreciate it... if you want to even help more tongue.gif http://www.overclock.net/t/1373501/buying-this-tomorrow-good-bad-what-am-i-thinking


im stuck on whether i have a monsta 120mm at the bottom of my case exhausting in the case which might ruin the point of my rx240 being up top ... or... running the monsta as an exhaust where my dual bay res is and using a cylinder res inside the case.... or... just mounting a rx240 on the back of the case and having an external rad frown.gif


Don't get that pump, get teh 655 with PWM.
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post #19 of 59
Thread Starter 
Quote:
Originally Posted by tsm106 View Post

Don't get that pump, get teh 655 with PWM.

but if i get the 655 with PWM then i cant control it through speeds 1-5 right?
  
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post #20 of 59
Quote:
Originally Posted by INCREDIBLEHULK View Post

Quote:
Originally Posted by tsm106 View Post

Don't get that pump, get teh 655 with PWM.

but if i get the 655 with PWM then i cant control it through speeds 1-5 right?


PWM is the boss! You control it thru speedfan or the motherboard bios, just like the cpu fan by controlling the duty cycle. In short, you can set the pump to scale up or down via temperature, and on top of that you can control how much power to use as a percentage. It is a superior to using a dial. Most ppl end up not using the dial and just leaving it in one spot, lol sort of defeats the point of a variable dial.

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