i-Prodigy - Project for i-Wife

[mrbean_phillip]

Heya Slobber,
Thanx for the feedback

Been married 21 years almost, so she better appreciate it! Hehe.

It is actually pretty simple to take apart, after doing the 1st water-runs, I discovered the one BP 90 deg Rotary was ever so slightly seeping a drop every 5-10 minutes, so it had to go.

Took less than 10 minutes, including draining/refilling, to change that one. Not to bad, but will try and avoid fiddling with the loop to much - once you get it sorted, will normally go 3-4 years without opening it up - need to get a few Silvercoils though, one has to go into this setup.

[Anakist]

You say the rad is at ambient, but the CPU is at 55deg. Was this at two different times? Or do you need a reseat or is there something I am missing?

James

[mrbean_phillip]

Originally Posted by Anakist

You say the rad is at ambient, but the CPU is at 55deg. Was this at two different times? Or do you need a reseat or is there something I am missing?

James

The CPU is at 100% load there. I am running Prime95 to determine stability, been running SuperPI alongside it too....I am currently sitting at 4.5Ghz, and 1.18Vcore - and seems pretty stable, no issues at this setting. MIght get the Vcore down to 1.15/4.5Ghz.....

Anyway, CPU full-loads at 64 deg C, with hardly any increase in water temp - brings me back to what I keep telling certain individuals, these chips are struggling to get rid of the heat through the rather small surface-area, and that a 240mm rad should be able to cool the most potent overclocks - but, you know how it goes....

Did you think I was idling at those temps?

[Sjoerslev]

Amazing load-temps! Can see that my radiator setup is abit on the over-kill-side, oh well ...

Is the pump running at max or .... ? I heard 60 % Bios speed is the sweetspot for noise / performance.

[Anakist]

Originally Posted by mrbean_phillip

Did you think I was idling at those temps?

Nope. I just find it odd that there is a ~30C Delta on water at load when everyone says ~10C is normal.

Makes sense if there is insufficient contact area. Will we end up back with silver blocks? What TIM did you use? Would it make a difference here?

James

[mrbean_phillip]

Originally Posted by Sjoerslev

Amazing load-temps! Can see that my radiator setup is abit on the over-kill-side, oh well ...

Is the pump running at max or .... ? I heard 60 % Bios speed is the sweetspot for noise / performance.

Heya Gomi,
Yep, fans and pump at fullspeed - fans running of the motherboard currently, and pump directly off of the PSU. am awaiting the AAE5 LT, and have them controlled by water-temp But, pretty decent load-temps.

@ Anakist: I am using arctic alumina, so it should be within a few degrees of the very best, and nothing that would make a difference here.

I cannot see how a 10deg C delta between water and CPU is possible, other than when the water is closer to cpu temp than ambient. So, if CPU was 60, and water 45 or 50, yes, but not with water close to ambient.

Not going to happen. Not with today's CPU's anyway.....Doesn't matter how much raddage you put in this scenario, the water remains pretty cool, even under full-load testing, been at it for 7 hours now, and it barely moves.

As mentioned earlier, issue is to get the heat out of the CPU-die, and into the water. I guess I can gain a few degress under full-load and heavy overvolting, if I remove the CPU heatspreader and go naked.

But, to much of a risk, again with very low gains....and not for this application....

The CPU temp will go up approximately 8 deg C for a 0.1Vcore increase - pretty heavy, and showing just how much current is leaking on these boys.....and with not much of that heat dumped into the water....

So again, I feel to see how the guys can claim more rads will improve the situation....

[Sjoerslev]

8 deg C for a 0.1Vcore increase - Yikes!

But I guess with 22nm, Tri-Gate and everything else they added With Ivy its getting pretty "cramped" in there.

I saw a guide on how to remove the IHS, replace the TIM and apparently witness the coming of the messiah - Way to radical for my taste though. Yah, its easy to point fingers at Intel and scream about the lack of soldering on die - Truth is, the sky aint falling and Ivy is an amazing architecture - For the people that want 5Ghz + Overclocks (And that must be purely for Epeen value), just stick with Sandy.

[bobster]

Have you tried running furmark on it?

[mrbean_phillip]

@ Gomi: Yeah, pretty heavy temp-increase for not much gains in anything else. Seems the max this chip is happy with (only playing with Vcore for now) is 48x Multi and 1.30Vcore.

GPU running at GPU +140 offset,GPUmem @ +100 offset,and Dimms at 10-10-10-24-1T @ 1.375Vdimm.

3dMark2011 = 9536, not to bad, and SuperPI Mod 1.8 around 7.6 seconds.

Truth be told, I cannot see much gains in benchmarking going from 4.2-4.8Ghz, and seeing the CPU is happy with default Vcore at 4.2, guess where it will spent its life....hehe.

@ Bobster: Will run furmark during the week one evening....but the radiator is holding its own, and I am willing to put both my feet on a block it will handle anything plus what this rig can throw at it.

[Moptimus]

Originally Posted by Anakist

Nope. I just find it odd that there is a ~30C Delta on water at load when everyone says ~10C is normal.

Makes sense if there is insufficient contact area. Will we end up back with silver blocks? What TIM did you use? Would it make a difference here?

James

Sorry for OT here ol'Bean.
When most people talk ~10C normal delta, that is water to air. I have moarrad, and in general my hot water temp can climb quite high, to ~ 13 delta. Sitting here at idle with cpu temp of 25 (ave, max=28) and delta of 2 intake air to water.

[mrbean_phillip]

Originally Posted by Moptimus

Sorry for OT here ol'Bean.
When most people talk ~10C normal delta, that is water to air. I have moarrad, and in general my hot water temp can climb quite high, to ~ 13 delta. Sitting here at idle with cpu temp of 25 (ave, max=28) and delta of 2 intake air to water.

Heya Moptimus,
No worries, you're very welcome to comment - I am not anal about the OT every once in a while

Yeah, I know in normal (watercooling) terms Delta refers to Water->Ambient Air, but Anakist had specifically refer to delta between water and CPU.

Hence my comment.

But thanx for your feedback, appreciated

[gtarmanrob]

awesome work mate.

so im tossing up between the Drive-II block/pump, or the H20-320 Edge HD kit.. will be cooling the i7 3930k.

would you recommend the Drive block with pump mounted right on top then, as opposed to a separate pump? even if the separate pump is the same pump as the Drive II, just built into the radiator like Swiftech have done in the Edge kit?

cheers

edit:

http://www.pccasegear.com/index.php?...ducts_id=19775

this is the kit in question by the way. im really after anyones thoughts or comparisons of performance on this kit over the Drive-II setup with a radiator and reservoir. major differences being the pump mounted on the block or integrated in the radiator, and if theres a difference in performance.

[mrbean_phillip]

Heya Mate,
I have to say, I really like the simple solutions when it comes to watercooling, and the Edge-kit falls into that bracket too.

A real neat solution, and if you pair that with decent fans, you should get the best out of the Swiftech rad - a pretty thin unit, with a relative low density wrt FPI, so it should really perform well when used with lower rpm fans, maybe 800-1400 or so.

I would also think that kit might be a little better in terms of outright flow vs APD2(depending on the blocks you use of course), as the APD2 was designed with a relative small footprint in mind - which was pretty well achieved, with a couple sacrifices here and there....

It is always debatable, and very much a theoretical point anyway, how much flow you should have - both those devices will give enough flow to keep your system happy.

The edge-kit will have the edge though (no pun intended) when it comes to priming and again, theoretically, pump life - your unique situation will determine which is best - both will do an admirable job, especially in smaller confines, and I would venture to say perform +95% of the much more expensive systems out there.

For all out performance, yep, spend the $1,200 plus, build yourself a 'moarrad' setup, or for less than 1/2 the expenditure, you can get over 95% of the performance of the WC-loop of the more expensive version, with over 99%+ the CPU/GPU performance.

I guess some of the new generation of WC system builders out there will disagree, but, reality is 5-15 deg C CPU/GPU real temp difference will give you nada overclocking headroom.

Once you go to -15 or more, you may start to see gains, and from -30 onwards real gains when overclocking.

Even water-alcohol mix, with dry-ice will very seldom give you any appreciable benefits.

Soz for the rant

[gtarmanrob]

haha nice. so basically you're saying you'd recommend the Edge HD kit over going with the Drive-II block/pump? i actually was kinda leaning that way anyway, but given its a more costly option, want to make the right choice first time round you know

[mrbean_phillip]

Heya Mate,
It all depends your situation/requirements - for any small compact build, I will never again consider anything other than the APD2, provided of course, it will support the cpu socket at the time.

I am even going to use them in my Blackbird makeover, and again, they will run in serial-mode, with redundancy in mind. Yes, this ain't a commercial airliner, but a mission-critical system none the less, and a single APD2 will perfrom a stellar job of keeping circulation going if the other should fail.

By the sounds of it though, your build may be happier with the Edge kit, with that said, the APD2 with a nice custom rad will offset the benefit of the slightly better flowing Edge-kit may provide - again, things like rad FPI, fan-speeds, noise etc comes into play, so what's right for me, may not be for you.

But ask away, will help as much as we can