3 bonneville77 rads/ Segmented or parallel???

[bestmancajun]

I got 3 of these babies. I'm going to use a Eheim 1260 for this water system. Should I hook the rads up in parallel or segmented? I think I'm going with segmented for low pressure drop. Your thoughts???? Thanks.

[creidiki]

segmented?

i dont understand.

what size are these cores, single or double?

in any case, parallel is always a bad idea with watercooling, where cooling performance is directly related to turbulence, turbulence to flow, and parallel murders flow by splitting it.

let alone that you typically dont see improvement in going dual-rad unless you have massive (TEC) levels of heat, let alone triple...

[mtl_hed]

@creidiki: this (http://www.dangerdenstore.com/product.php?productid=48&cat=14&page=1) is the 77 bonneville heatercore

You dont need 3 of those in 1 loop with a 1260. 1 is probably enough. If your running a TEC or cooling 2xGPUs and a CPU then MAYBE two of them.

This is way overkill for the pump that your using.

What waterblock(s) are you using and what are you cooling? <-- this is the info we need to make a good recommendation for you

[creidiki]

totally unnecessary and will give no benefits then. better off getting a pump that doesent suck instead...

[mtl_hed]

better off getting a pump that doesent suck instead...

lol. A better pump would be in order, depending on your budget.

Give some more info on your projected build and we can point you in the right direction.

[phelan1777]

I got 3 of these babies. I'm going to use a Eheim 1260 for this water system. Should I hook the rads up in parallel or segmented? I think I'm going with segmented for low pressure drop. Your thoughts???? Thanks.


Can I buy one of those 77's off of you, cause oyu really don't need three if you are using the double.

[mtl_hed]

Can I buy one of those 77's off of you, cause oyu really don't need three if you are using the double.

Shipping would be almost as much as buying a new one. You live in the states, so just go to your local autoparts dealer(autozone, advance auto, pep boys, etc) and buy one. They're less than $30US.

[phelan1777]

Shipping would be almost as much as buying a new one. You live in the states, so just go to your local autoparts dealer(autozone, advance auto, pep boys, etc) and buy one. They're less than $30US.


I know I already have one, if he was in the states, hopefully would get it from him a little cheaper :p: Can you blame me for trying?

[bestmancajun]

I got lots of water cooling junk. 2x Eheim 1250, Eheim 1260, 4x Double Heatercore Rad, Black Ice tripple120 rad. I paid the same for those four double heater cores as I did for the Black Ice Extreme rad. :)

A Eheim 1250, Tripple120 rad, Apogee, Maze4, and Maze4NB are going to silent cool my media pc (Expert board).
A Eheim 1250, and double120 rad, and two custom blocks are going to cool a Dual CPU K7 server.
I got three double120 heater cores and one Big pump left over... I know I don't NEED three for my current load of my gaming rig. I just figured since its going to be a exterior cooler I could always use it to cool mulitple systems in the future, the extra rad might come in handy.
I was thinking of getting a 5/8" three way splitter with a 1/2" ID connecting the Eheim 1260 to the rads then one more after the rads going to cpu. <-- Just a bad idea, connect them together...
I'm not disappointed in this pump at all. I thought the Apogee was the better block until I busted the 1260 out on my TDX.

[creidiki]

The way I see it, dont bother stacking too much stuff into one rig.

I'd use 2x 1250s in series and the BI triple for the gaming rig, and the 1260 with one core for the other rig.

[bestmancajun]

I switched the 1260 for the 2x1250's on my current gaming rig and ran some test. I am performing worst with the dual 1250's. Both pumps are working fine. I tested using cpu burn K7 on both cores with core0 priority set to high and core1 at default. Im my loop; TDX cooling an Opteron 170 1.62V 2.78Ghz, 2xmaze4 7800gtx softmod sli, 2x double120 heatercore 7W aluminum fans, acrilic resivior. My blocks are performing about 2C above with the 2xEheim 1250.
1260 5 hour cpu burn ambient temp 25C
http://i12.photobucket.com/albums/a202/bestmancajun/k71260.jpg
2x1250 6 hour cpu burn ambient temp 22C
http://i12.photobucket.com/albums/a202/bestmancajun/K72x1250.jpg

[creidiki]

Are they in series?

[bestmancajun]

Ya, I'm not getting as much flow with both 1250 in series as I do with the 1260. I can tell by looking in the reservior. I can tell both pumps are working fine by unpluging one while the other is on and looking in my rez.

[creidiki]

Huh, thats interesting.

I know what the P/Q is like for the 1250 but not for the 1260, so I kinda assumed that the combined head of 2x 1250s would beat the higher flow of the 1260...

... thinking about it more however, your blocks are low-preformance, low-restriction designs, so I can see why the 1260 would beat the 1250s, with the anemic head and really flat curves of Eheims. With modern blocks it would likely a be a different story.

In any case, I'l keep that in mind, thanks for testing :)

I'm not sure which would win with dual rads in series though - 2 rads is pretty restrictive stuff, generally. You'll probably want to test again when you build it, just to make sure (i know its a pita, heh).

[bestmancajun]

The 1260 is massive, not that loud, but vibrates heavily. You cant hear the 2x1250's at all.

[creidiki]

Yes. And whats funny is that a DDC-Ultra is the size of a 92x38 fan and beats all of them blindfolded and with a hand tied behind its back.

[eXa]

nah, really thick 80mm fan!