Reservoirs vs T-lines in Flow Rate = Insignificant

I was curious about how T-lines compared to Reservoirs and I also needed some equations to plug into my estimator spreadsheet I've been working on, so in spirit of my curiosity, I ran pressure drop curves. The end result is that I found that T lines are less restrictive, but both in general are SOO small, you really shouldn't worry about it.

The contenders:

Don't you like the tractor? And hey...I kind of like the coke bottle, maybe I'll make a good one for real..:D

http://www.overclock.net/gallery/dat...eTestParts.jpg

And the resulting graphs:
http://www.overclock.net/gallery/dat...bowResT-PD.png

Now for the reality of what this small pressure drop means:
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing = 1.68 GPM
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing + 1 T-line = 1.66 GPM
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing + 1 Reservoir = 1.64 GPM

I already have these worked into the next flow rate estimator release, but the bottom line is...neither one amounts to any noteable loss.

I wouldn't base your decision on flow rate, back to personal preference..:up:

I nominate another great thread Martinm210 has made to be put on sticky please.

You are da the man Martinm210!

I had always thought T-Lines sucked and cause problems but boy was I wrong, although I do have one concern with a T-line, arent you restricted to the amount of coolant you can add to your loop using a T-Line, or does it even matter if using a good radiator to cool the coolant?

Try and test with a MICRO-mcres if you have one.

Quote:

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Originally Posted by hecktic

I nominate another great thread Martinm210 has made to be put on sticky please.

You are da the man Martinm210!

I had always thought T-Lines sucked and cause problems but boy was I wrong, although I do have one concern with a T-line, arent you restricted to the amount of coolant you can add to your loop using a T-Line, or does it even matter if using a good radiator to cool the coolant?

Try and test with a MICRO-mcres if you have one.

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Thanks, I had been thinking for a while now that reservoirs were this big flow rate hog...so I had to answer my question...I was wrong.

I REALLY like T-lines for a couple of reasons:

• Easy to monitor coolant level, Put a black zip-tie on your level and you have a great indicator of loss.
• More spill proof for spill happy fillers like myself. I can pull the T-line out away from my case and fill and spill as needed worry free.
• It seconds as a drain line, turn it on end and pull a hose off my rad and the system drains really well.

And no I've never felt restricted by the T-line capacity, actually the other way around. My bay reservoir only allowed maybe 1/4" of drop in coolant level before it started sucking air back into the loop, not a problem with the T-line...lots of elevation there if you leave yourself a long line.

My preference is still a T-line, it's just a simpler setup for me...less tubing, less chance of spill damage, nice and quiet. THe only disadvatage is they take a bit longer to bleed and they are so still at the top, it's hard to see you have flow except on startup when the pressure builds and the level drops because your tubing is expanding a bit. A reservoir give you a much better indication that you have flow, and alot of people like the looks of them.

was the bottle sealed? Im thinkn, if you had possitive pressure inside the bottle, water would need to be pushed harder due to gravity working down on the water level.

It would be nice if you could try this test again on a smaller reservoir, like the microres by swiftech.

There's to many variables in this to just say "resorviors are super restrictive". I REALLY don't see how they could be restrictive unless you're using a crappy bay drive res. Use a swiftech micro res, or one of the EK's then come back to us. If you're gonna post something like this, and want to be taken seriously, don't use some home made concoction. Use stuff that is used by us every day, ie. micro res and EK res.

Honestly, I don't think it's restriction at all but rather, a release of pressure in the loop. I've often pondered this quandary but never really looked into it.

With a T, the pressure from the outlet eventually forces water into the inlet, thus keeping higher pressure. A res on the other hand, breaks this continuity of perpetual motion.

.02 GPM compared to a t-line? What difference would that make in the long run?
I would have definatly gotten a resivoir if my budget had permited, because it looks better, and is 50x easier to bleed IMO.

Great to see you laying solid foundations under your flow estimator, Martin!
WTG
I've always thought it was a balance between ease of fitting and ease of filling/bleeding. Nice to know for sure.

Doesn't every radiator effectivly have three tanks (one at the inlet, one at the outlet, and one at the other end)? Aren't these equivalent to a res in basic function in that they contain a mass of fluid that comes in one way and exits another? If so, then it would seem silly to worry about adding another res to your system for bleeding purposes when every loop already contains 3+ tanks.

Well the data is still not deniable. But I did in fact suggest he use a swiftech micro mcres res. It would add more clarity to the data this way and be more convincing.

I still will believe him with or without the swiftech res test.

Quote:

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Originally Posted by Martinm210

My preference is still a T-line, it's just a simpler setup for me...less tubing, less chance of spill damage, nice and quiet. THe only disadvatage is they take a bit longer to bleed

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That's why I have a res at a high point, and a T at a low point.
Best of both worlds:
- easy bleed
- easy drain
Adds 0.06GPM restricition according to your calculation? Could'nt care less :)
(especially since bleeding with 8mm ID tubing takes a lot of time - so much that
after some hours of unsuccesfully filling/bleeding, I put in a res...)

Sorry guys, the title was misleading the reality is they are both extremely small:

Now for the reality of what this small pressure drop means:
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing = 1.68 GPM
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing + 1 T-line = 1.66 GPM
D-tek Fuzion, MCW60, MCR320, D5, 7' of 1/2" ID tubing + 1 Reservoir = 1.64 GPM

I already have these worked into the next flow rate estimator release, but the bottom line is...neither one amounts to any noteable loss.

Both are extremely free flowing and amount to nothing in terms of temps

Excellent results! Keep going doc martin, and all these threads should be combined into a nice sticky

grrrr now i have to get a t-line...

you should try it with a real reservoir that many people use b4 i pay any attention to this, coke bottle is different imo

Quote:

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Originally Posted by [cTxP]Baleful

There's to many variables in this to just say "resorviors are super restrictive". I REALLY don't see how they could be restrictive unless you're using a crappy bay drive res. Use a swiftech micro res, or one of the EK's then come back to us. If you're gonna post something like this, and want to be taken seriously, don't use some home made concoction. Use stuff that is used by us every day, ie. micro res and EK res.

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Who cares? The main point an intelligent person would take away from this is that T lines are not that restrictive after all.

Actually I need to make one edit. Martin, you might try the same tests using the T-lines in a different orientation. Have the flow impact the sidewall and carry on in a horizontal plane if that makes sense. Having the flow go across the top of the T might not have as much impact as perpendicular. Or did you do that already?

I too would be curious to see if anything about the shape/size/plumbing of a reservoir makes a damn bit of difference--I doubt it will.

Having used T-lines and several different types of reservoir I have to say the only thing a reservoir does is give you something fun to look at...

A T line IMO is much more to the point and easier to use in many ways...but a 5.25 bay res is fun to look at.

The "Cyclone" res that Performance-PCs.com sells is identical to Martin's coke bottle in capacity and plumbing..

And for the haterade directed at home made set ups--all test rigs are at some point or another "home made" it's the methodology that is important.

A pair of inlets into a container is not going to be much different if the container cost you $20 or 5 cents as long as the size of the containeer aproximates the containers that would be actually in use in a loop.

Nice work.

I have been using T-lines on about the last 20 builds

Quote:

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Originally Posted by mcoffey

it sounds like your talking about turning a T line into some sort of elbow, is that correct?

if so I'd imagine about the same as any comparable elbow, or at most very little difference.

andyc

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Pretty much correct. Just making sure that the test has the fluid changing direction by 90 degrees, and in the case of a T being impacted by that change happening in two directions. For example I'm using more of a T to split my loop into a 1/4 leg (NB) and a 3/8 leg (loop continuation) and combined back together again. The 3/8 leg exits and enters on the perpendicular part of the T while the 1/4 leg follows the straight path along the top of the Ts.

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Originally Posted by zhangmaster12

grrrr now i have to get a t-line...

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No don't do it because of this, my main point was to say they are both so very very very very small it's insignificant. I would not worry about .04 GPM, you should consider this 0.

It was so small I wouldn't have been able to measure it with any pressure guage, I had to measure in inches of water down to the nearest 1/8" just get a smooth reasonable curve and that's not easy.

I also had to run a 4th curve just to remove the pressure drop from the 3' piece of tubing and the T-lines I was using to measure pressure. That's how small a pressure drop these are. And one elbow is more restrictive than an entire reservoir.

Quote:

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Originally Posted by santiagodraco

Who cares? The main point an intelligent person would take away from this is that T lines are not that restrictive after all.

Actually I need to make one edit. Martin, you might try the same tests using the T-lines in a different orientation. Have the flow impact the sidewall and carry on in a horizontal plane if that makes sense. Having the flow go across the top of the T might not have as much impact as perpendicular. Or did you do that already?

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This was a test with the T setup such that your flow passes straight through. A branching T fitting where your flow takes a 90 is much much more restrictive, more so than a sharp 90 degree elbow. I would not use T fittings to split flow if you can avoid it, you're much better off with a Y fitting.

A typical fitting loss chart for PVC fitting will say:
90 degree elbow is worth about 1.5' of pipe
T flow through is worth 1.0' of pipe
T branch is worth 3.8' of pipe
Now keep in mind this is for PVC and fitting which are more efficient than tubing and fittings because of the step down from hose to fitting. I find that an elbow is actually worth about 4' of tubing, and a T fitting is closer to 2', so taking those relations and applying it to the 3.8' PVC rule of thumb I would guess you're talking about 8' of tubing or more...that's not good.

I could run a curve for it, but I would have to use two T fittings and then split the result in half.

Quote:

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Originally Posted by mcoffey

I never considered a T line to be restrictive to any degree at all. now elbow fittings another story, but even those have very little effect on flow rates or temps. if you design your loop right to begin with with the proper flow rate of 1.5 to 2.0 GPM, you can always add a little here or a little there in regards to T lines, elbows, res. etc.

andyc

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Yep, that's spot on!

Ok I fixed the name of the thread, I apologize for doing a little bait and switch, I really didn't intend for everyone to think there was some real noteable difference. My end message intent was to say yeah T lines are a little less restrictive, but it's so incredibly small you shouldn't worry about it.

How about using T line as elbow but the bottom part was only for drain purpose. Coz i'm planning using dangerden delrin T as elbow and drain port as well.

Quote:

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Originally Posted by mcoffey

lotta great work there Martin, and should be a great help to those designing their builds for some time to come. this and your flow rate calc are really what the intent of XS is IMO.

really great posts and effort, I thank you for it.

andyc

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Thank you!
The reaction was my own fault for the baiting topic. It's also a good example that we all tend to skim read and read headlines and forget the rest...I should know better..lol!

Quote:

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Originally Posted by Boyu

How about using T line as elbow but the bottom part was only for drain purpose. Coz i'm planning using dangerden delrin T as elbow and drain port as well.

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Just one elbow (similar by probably slightly more restrictive than a regualar elbow) won't amount to much, just don't go putting a dozen of them in and you'll be fine.:up:

Quote:

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Originally Posted by Martinm210

Just one elbow won't amount to much, just don't go putting a dozen of them in to straighten out your tubing and you'll be fine.:up:

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I'm really curious on the effect of using a T-joint as an elbow. What I'm implying is that I'd like to connect a T directly to the radiator. The other end of the T will be capped off with a G1/4 temp probe. The branching T itself will be connected with tubing to continue on to the blocks.

I'm wondering if that sort of implementation of an "elbow" will result in a larger pressure drop.

Quote:

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Originally Posted by ranker

I'm really curious on the effect of using a T-joint as an elbow. What I'm implying is that I'd like to connect a T directly to the radiator. The other end of the T will be capped off with a G1/4 temp probe. The branching T itself will be connected with tubing to continue on to the blocks.

I'm wondering if that sort of implementation of an "elbow" will result in a larger pressure drop.

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The only thing I could relate that to without having done the test myself is some generalized engineering equivalencies to fitting losses. A more typical fitting loss pipe length equivalent is something like this:

Fitting vs Equivalent Pipe length
Elbow = 1.5'
T flow through = 1.0'
T branch = 3.8'

Unfortunately because most fittings have a smaller ID than hose fittings we actually experience higher pressure drops than those typical published PVC pipe type length equivalencies. For example I found one 1/2" Elbow is worth about 4' of 1/2" tubing....that's a 1/2" elbow meant for 1/2" hose that actually has an ID of about 3/8". If an elbow is worth 4' of tubing a T branch "could" be worth twice that much.

Now that sounds pretty bad....BUT tubing itself is not very restrictive so that doesn't tell the whole story.

If I have a more typical system that's getting 1.53 GPM for example and add 8' of tubing to it, I'd only reduce the flow rate down to about 1.45 which is some, but in terms of temperture not enough to worry about.

If possible though for absolute best efficiency, putting that probe on the 90 side of that T so flow passes straight through would be even better.

Quote:

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Originally Posted by Martinm210

If possible though for absolute best efficiency, putting that probe on the 90 side of that T so flow passes straight through would be even better.

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I would if I could, but I can't find any other way to connect my RD-30 to my radiator AND include a G1/4 water temp probe at the same time. My case is so cramped and tight it's the only solution I can come up with. It's why I'm asking for the theoretical impact now to see if its even worth using the temp probe.

personally I'd go with a res. the EK res doesn't need a funnel which is nice.

Try hard mounting the Fuzion, no springs at all.

Just be sure to keep track of the turns and use a criss cross pattern for tightening.

2 points immediately spring to mind (would right more but have to catch a bus)
1. when modelling anything in watercooling the restriction tends to be of the form a*x^2. This is the case with your coke bottle rad above. This applies to everything and if your modelling something always compare your complicated formula to an x^2 graph unless there is a huge discrepancy. The x^2 result will be more “right” and any difference is measuring error. This might not apply for really complicated flow scenarios like a jet impingement block or a pump but should give you a very close answer. T

2. A coke bottle is not a good radiator as the water just rushes in and out, without settling, which is bad reservoir design. This has two effects
a. Air does not filter out as easily as the water never settles (moves really slowly) so air can’t escape.
b. There is lower restriction as the inlet and outlet are coupled together in a flow pattern. This reduces restriction but means the flow is not settling.

Restriction of a good reservoir with the same sized pipes going in and out will always be equal to (for SI units)

P = V^2 *rho

Where:
P= the pressure drop
V = velocity of water in m/s in the pipes going in and out.
Rho = the density of water 1 kg/ litre (don’t start putting stupid numbers of significant figures in)

Quote:

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Originally Posted by ranker

I would if I could, but I can't find any other way to connect my RD-30 to my radiator AND include a G1/4 water temp probe at the same time. My case is so cramped and tight it's the only solution I can come up with. It's why I'm asking for the theoretical impact now to see if its even worth using the temp probe.

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Ahhh, I see. Yeah it won't amount to any real temperature change. Having a water temp probe is a really good radiator performance indicator. I have one down my T-line in both of my loops. It's not hard mounted, but it gives me an after by blocks measurement and shows me if I get any heat buildup.

Quote:

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Originally Posted by bobo5195

2 points immediately spring to mind (would right more but have to catch a bus)
1. when modelling anything in watercooling the restriction tends to be of the form a*x^2. This is the case with your coke bottle rad above. This applies to everything and if your modelling something always compare your complicated formula to an x^2 graph unless there is a huge discrepancy. The x^2 result will be more “right” and any difference is measuring error. This might not apply for really complicated flow scenarios like a jet impingement block or a pump but should give you a very close answer. T

2. A coke bottle is not a good radiator as the water just rushes in and out, without settling, which is bad reservoir design. This has two effects
a. Air does not filter out as easily as the water never settles (moves really slowly) so air can’t escape.
b. There is lower restriction as the inlet and outlet are coupled together in a flow pattern. This reduces restriction but means the flow is not settling.

Restriction of a good reservoir with the same sized pipes going in and out will always be equal to (for SI units)

P = V^2 *rho

Where:
P= the pressure drop
V = velocity of water in m/s in the pipes going in and out.
Rho = the density of water 1 kg/ litre (don’t start putting stupid numbers of significant figures in)

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But how do you know when you've gone from a simple to a complex restriction?
Even a T line is going to have multiple losses going on, one at the step down in ID, one at the opening, and one at the step-up. The reservoir is similar, step down loss, entrance to the reservoir velocity loss, entrance loss into the sharp barb fitting, and another loss as it steps up into the hose ID. I found I needed to go clear to the 4th to plot my pump curve of the D5. It threw me off when I collected the data and saw a dip and then this big buldge, but I guess the hydraulics and friction losses combined with changing impeller efficiency is a whole different ball of wax. Found the curves at Laing's site and they match what I recorded. I've also seen some strange flatten of flow rate in the fuzion and some other blocks so by default I've been going to a third order poly though I have seen what you noted going too high is often just plotting error. But there are a number of losses that aren't well captured by the second power, and figuring out when you need to make that change isn't easy.

One thing I've learned through all my testing is alot of engineering equations, while the theory is good, can be off slightly because of water coolings specifics. I applied Darcy's equation to the friction loss of tubing only to find out it was slightly less restrictive than my actual test confirmed both by curve calculations and real world pump tests. Also fitting losses that are commonly published are off and I think that is because hose fitting IDs don't don't match the hose. It's all still something that can be captured mathematically, but sometimes it seems to be just slightly different in environment.

The reservoirs would all vary slightly and you would have been suprised how well this coke bottle worked in terms of still water, I was impressed:D

The inlet and outlet of my test case were protuding with inlet K value losses around .9. I bet I could reduce alot of that loss by simply cutting the outlet barb flush and rounding the edge which should bring that K value down to .2. A bay reservoir where the threads are nearly hidden and flush with the walls probably flows better as well..?

Quote:

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Originally Posted by ranker

I would if I could, but I can't find any other way to connect my RD-30 to my radiator AND include a G1/4 water temp probe at the same time. My case is so cramped and tight it's the only solution I can come up with. It's why I'm asking for the theoretical impact now to see if its even worth using the temp probe.

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Ranker, if you use a DD Delrin T (which is very compact) then I would think that with the temp probe plugged into one of the pass-through ports, it would effectively turn the T into an elbow... the temp plug would protrude enough into the T to block that branch completely. I would think this would be better than a more extended T where the coolant can travel down the dead-end path.

http://www.performance-pcs.com/catal...s/Delrin-T.jpg

What do you think?

Well I figured I'd post since today I took out some components and installed a T line.
After the 8800 the temps went up..
35-38c idle (e6300 to 3.34gz)
8800gts 42c
Swiftech resevoir>D5 pump>apogee gt>MC60>mcw30>mcr220>thermaltake alum resevoir>swiftech resevoir>

After getting yelled at on here :D I decided to go the route of the T line and dump the alum in the process.

Now it goes
D5>mcr220>Tline>apogeegt/Mc60>mcw30>D5
The T line installed 2" after the mcr220 hole.
So i took out 2 resevoirs and some tubing.. numbers are now
Cpu 31-33c idle
Gpu 40-42c idle

I'll add in redline later and see if it makes a difference.
So definite thumbs up for the T line, though I did change a few other things
up as well :up:

Quote:

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Originally Posted by Eddie3dfx

Well I figured I'd post since today I took out some components and installed a T line.
After the 8800 the temps went up..
35-38c idle (e6300 to 3.34gz)
8800gts 42c
Swiftech resevoir>D5 pump>apogee gt>MC60>mcw30>mcr220>thermaltake alum resevoir>swiftech resevoir>

After getting yelled at on here :D I decided to go the route of the T line and dump the alum in the process.

Now it goes
D5>mcr220>Tline>apogeegt/Mc60>mcw30>D5
The T line installed 2" after the mcr220 hole.
So i took out 2 resevoirs and some tubing.. numbers are now
Cpu 31-33c idle
Gpu 40-42c idle

I'll add in redline later and see if it makes a difference.
So definite thumbs up for the T line, though I did change a few other things
up as well :up:

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how hard was bleeding?

@virtualtrain, can you try to rephrase that. Are you saying turn that T into an elbow with a temp sensor?

it still is lol..
It's been about 45mins so far, I'm not sure how long it's going to take to get every bubble out.

Quote:

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Originally Posted by Eddie3dfx

Well I figured I'd post since today I took out some components and installed a T line.
After the 8800 the temps went up..
35-38c idle (e6300 to 3.34gz)
8800gts 42c
Swiftech resevoir>D5 pump>apogee gt>MC60>mcw30>mcr220>thermaltake alum resevoir>swiftech resevoir>

After getting yelled at on here :D I decided to go the route of the T line and dump the alum in the process.

Now it goes
D5>mcr220>Tline>apogeegt/Mc60>mcw30>D5
The T line installed 2" after the mcr220 hole.
So i took out 2 resevoirs and some tubing.. numbers are now
Cpu 31-33c idle
Gpu 40-42c idle

I'll add in redline later and see if it makes a difference.
So definite thumbs up for the T line, though I did change a few other things
up as well :up:

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we have a similar setup. I am adding this mcw60 (8800gts) to my loop this weekend and I was concerned with my temps on a dual radiator like yours. At the same time I am going to remove my 3.5 res and going with a t-line and DD fillport. thanks for posting your temps.

Quote:

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Originally Posted by sick_g4m3r

how hard was bleeding?

@virtualtrain, can you try to rephrase that. Are you saying turn that T into an elbow with a temp sensor?

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Sort of... Ranker needs an elbow connection out of his rad... he also wants to use a temp probe in the loop and he was concerned that using a T with a dead-end on the pass-through route would hurt performance worse than just using an elbow. I also tend to think a dead-end on a T would be worse than a normal elbow.

However, if you use a compact T like the one I pictured above and plug the opposite pass through opening with a temp probe, you effectively have an elbow and it should perform like any other elbow... not like a T with a dead-end path. :shrug:

Transam, not a problem.
Let us know what your temps are when you install it.
I'm thinking of adding in an other mcr220 or maybe a single radiator (black ice x-flow 120 at microcenter for $29.99 with barbs)
If I get a Q6600 then I definitely need a mcr220.

On a side note, how do you guys plug your tubing on the T line?
home depot plug or fillport?

Quote:

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Originally Posted by virtualrain

Sort of... Ranker needs an elbow connection out of his rad... he also wants to use a temp probe in the loop and he was concerned that using a T with a dead-end on the pass-through route would hurt performance worse than just using an elbow. I also tend to think a dead-end on a T would be worse than a normal elbow.

However, if you use a compact T like the one I pictured above and plug the opposite pass through opening with a temp probe, you effectively have an elbow and it should perform like any other elbow... not like a T with a dead-end path. :shrug:

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yeah, an elbow and temp probe in one. that sounds like a great way to do it.

@ eddie, fillport FTW. safer and easier

Quote:

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Originally Posted by virtualrain

Sort of... Ranker needs an elbow connection out of his rad... he also wants to use a temp probe in the loop and he was concerned that using a T with a dead-end on the pass-through route would hurt performance worse than just using an elbow. I also tend to think a dead-end on a T would be worse than a normal elbow.

However, if you use a compact T like the one I pictured above and plug the opposite pass through opening with a temp probe, you effectively have an elbow and it should perform like any other elbow... not like a T with a dead-end path. :shrug:

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Thanks for the suggestion and I do have those DD blocks. Unfortunately, the temp probe seems to push pretty deep inside. I guess the dilemma is which is worse, a partially blocked elbow or a dead end T/elbow. I'd test but then again, I'm really getting sick and tired of building/rebuilding my Horizon. o.0 I just want to find a way to be happy about it and then get started on my Bob Slay project. After 3 personal UFO builds, I'm anxious to get away from those cases.

But anyhow, enough of me whining, I'll just sit back and see if I can find another place to throw the temp probe in and go with this route as a last resort. I can't believe I talked myself into doubling my water temp probes to 6 to measure water in and water out of the radiator.

Quote:

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Originally Posted by ranker

Thanks for the suggestion and I do have those DD blocks. Unfortunately, the temp probe seems to push pretty deep inside. I guess the dilemma is which is worse, a partially blocked elbow or a dead end T/elbow. I'd test but then again, I'm really getting sick and tired of building/rebuilding my Horizon. o.0 I just want to find a way to be happy about it and then get started on my Bob Slay project. After 3 personal UFO builds, I'm anxious to get away from those cases.

But anyhow, enough of me whining, I'll just sit back and see if I can find another place to throw the temp probe in and go with this route as a last resort. I can't believe I talked myself into doubling my water temp probes to 6 to measure water in and water out of the radiator.

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just stick one in the res and be done with it. lol

Quote:

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Originally Posted by Eddie3dfx

Transam, not a problem.
Let us know what your temps are when you install it.
I'm thinking of adding in an other mcr220 or maybe a single radiator (black ice x-flow 120 at microcenter for $29.99 with barbs)
If I get a Q6600 then I definitely need a mcr220.

On a side note, how do you guys plug your tubing on the T line?
home depot plug or fillport?

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Eddie3dfx, can you run a 3dm2006 bench or game and hit alt tab while you have some temp monitors running? I am curious what your load temps are while overclocked. Also what fans do you have on your rad and how many? I'm going to use 4x120mm medium speed yate 79cfm
(push/pull) on this heatercore.

Quote:

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Originally Posted by ranker

Thanks for the suggestion and I do have those DD blocks. Unfortunately, the temp probe seems to push pretty deep inside. I guess the dilemma is which is worse, a partially blocked elbow or a dead end T/elbow. I'd test but then again, I'm really getting sick and tired of building/rebuilding my Horizon. o.0 I just want to find a way to be happy about it and then get started on my Bob Slay project. After 3 personal UFO builds, I'm anxious to get away from those cases.

But anyhow, enough of me whining, I'll just sit back and see if I can find another place to throw the temp probe in and go with this route as a last resort. I can't believe I talked myself into doubling my water temp probes to 6 to measure water in and water out of the radiator.

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LOL! I hear ya! The last niggly details seem to take forever to resolve and just drag the build on and on and on... I know!

If you can put the T along the route somewhere else, it might be better... or tap a G1/4 opening in something where the probe would be benign. It would be nice if RADS came with an extra G1/4 opening in one of the tanks to put a probe in (or a plug if you didn't want to use it for that).

8800gts xfx xtreme
mc60 block
oc
670/981
shader 1568 (i believe)

idle 41c
3dmark 06 - alt-tab 45c
ati tools scan for artifacts 44-45c

4 fans (sandwhich 2 front - 2 back)

front
1 silvestone 110cfm
1 aerocool xtreme turbine 89cfm

Rear
2 thermaltake cfm

fronts are pulling, rears are pushing

Quote:

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Originally Posted by Eddie3dfx

8800gts xfx xtreme
mc60 block
oc
670/981
shader 1568 (i believe)

idle 41c
3dmark 06 - alt-tab 45c
ati tools scan for artifacts 44-45c

4 fans (sandwhich 2 front - 2 back)

front
1 silvestone 110cfm
1 aerocool xtreme turbine 89cfm

Rear
2 thermaltake cfm

fronts are pulling, rears are pushing

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wow! looks pretty good also considering you have 3 blocks and your gpu is clocked pretty high. very good temps.