Hondacity's HeatKillers GTX285 in Triple Sli (simple test)

[Erasmus354]

This thread just made me think of this:



So the question is ... why is your middle card not showing much higher temps? /sarcasm

[b@llz0r]

So the question is ... why is your middle card not showing much higher temps? /sarcasm

because that picture has no sound basis in fluid mechanics


the reality is that the pressure down each side is going to be the same across all the ports so flow should be roughly the same

[b@llz0r]

OK ... curiosity got the best of me

temps are good... perhaps you could be the first person to do a comparison of series v parallel.

I'll send u the fittings for it if you want.

[SNiiPE_DoGG]

This thread just made me think of this:



So the question is ... why is your middle card not showing much higher temps? /sarcasm

water always takes the path of least resistance resulting in equal flow and pressure through each block.

[MpG]

So the question is ... why is your middle card not showing much higher temps? /sarcasm

Because that image doesn't reflect what's going on. /sarcasm

[Defratos]

wait wait wait, what Graphics card is that anyway? I thought it was the GTX285?

[b@llz0r]

wait wait wait, what Graphics card is that anyway? I thought it was the GTX285?

it is

[shazza]

temps are good... perhaps you could be the first person to do a comparison of series v parallel.

I'll send u the fittings for it if you want.

Ha ... I could be, I guess. BUT, given my luck, I'd bork something taking my existing cards apart, so I'll just live with what I have.

I think the point of this whole thread is that either way will work - I never saw where Hondacity inferred that his results were the best, and certainly that's not what I was saying either

[b@llz0r]

Ha ... I could be, I guess. BUT, given my luck, I'd bork something taking my existing cards apart, so I'll just live with what I have.

I think the point of this whole thread is that either way will work - I never saw where Hondacity inferred that his results were the best, and certainly that's not what I was saying either

yeah its a lot of work to rig up a 3 way gpu loop once, let alone twice.

which is y nobody has done the comparison yet


unfortunately my ek gtx295 blocks cant run in parallel (although they do have parallel flow paths inside each block) or I would do a comparison.

[Hondacity]

shazza can you do a 1hr power supply test on your series cards?

i'm doing mine, this time XS style i'll be posting my results when this is done.

i'm drawing 1200w from the wall

@all sorry been busy, i'll asnwer your questions, and comment on your comments later

[shazza]

I did run the PSU test for one hour - I have the graphs. Let me know if there's something specific you want to see. I saw a fair amount of fluctuation on my 3.3V and 12V lines -- seeing the 3.3 down to 3.07 and the 12V down to 11.45 or so. GPU temps climbed throughout the test - not massively, but up to 53 on one card, and 52 on the other two.

[shazza]

Can you clarify your comment, KaptCrunch? Not sure what you are saying about data not showing correctly.

[Hondacity]

shazza occt finished, but darn it only reported one gpu temp...i'll have to tinker around occt to get 3gpu temps...

edit: i found out gpu2 and gpu3 are disabled...ahhahah

[NaeKuh]

can i ask an off question.

sorry about the slight detrail, but honda it looks like your running everest ultimate.

How did you get that program to play nice on a 64-bit i7? Skinnee and i were dying almost an entire day because that program kept crashing our i7's.

[Hondacity]

OK ... let me see if I understand the bar chart ...

Starting on the left, it shows lower flow rates for the 3 different CPU water block setups. As you add pumps/tops, you get a higher flow rate. Then you get even higher when you switch from the 480GTX to the PA120.3. The config you are running is the third one ... and that's the one you used to get the CPU/GPU temps you posted. Is this right so far?

I also take it from your comment about flow being overrated, that you didn't test the 1st or 2nd setup (or at least didn't post temp results). So would you expect to get the same performance level on the GPU temps with the lower flow rates? (I think this is what SNiiPE was saying, just not sure).

NOTE -- I'm not questioning your testing or your conclusions, just trying to make sure I understand. I guess I'm confused with the fact that you've shown multiple flow rate setups, yet posted only one set of temps. Maybe the flow rate data was from another test, and you included it here for info?

long overdue answer : yes it was from my flow testing

Yeah. tell him to put four in a row in a 50C case ambient (not an open bench) and then tell me what temps he has

Want me to show you 40C ? I'll set my own parameters... hell, I'll show you 35C my way.

Why don't I wait for January to come along, take the sucker outside and brag to you that my gpus load at 5C ?

its 20C inside the apartment ...i'm getting load temps of 37-38c on my 285s. 50c

This thread just made me think of this:



So the question is ... why is your middle card not showing much higher temps? /sarcasm

check part 2 at post1.

Shazza its corrected by Hondacity

just noting missing data, nothing wrong with your data

Hondacity can u run another screenie

screenie on the new setup yes, single loop is gone.

Interesting show, but I had thought it was already pretty established that cooling gpu's was not dependent upon high flow or massive radiator capacity.

On the other hand, I see your monitoring sofware you're using is all over the place in reference to your cpu's core temps. One has the highest core at 66C, one has it at 74C....odd, that.


But what makes you use comments like that? Completely uncalled for and really shows a lack of thinking, at the least.

log my cpu temps? thats too easy, if its odd to you. i'll say it to you ODD it is

Regarding the state of the hobby, there was once when performance actually mattered. Now, gltiz and show takes center stage.

you saying this as glitz?

vantage 3x285s

can i ask an off question.

sorry about the slight detrail, but honda it looks like your running everest ultimate.

How did you get that program to play nice on a 64-bit i7? Skinnee and i were dying almost an entire day because that program kept crashing our i7's.

its 32bit dude, i get some weird bsods with the ssd and 64bit


anyways post1 is updated somewhat
Part2
The important stuff : The RAD and FANS, quad for the cpu, dual quad for the tri-sli



First 20minutes


40minutes later


gpu1 graph from occt

gpu2 graph from occt

gpu3 graph from occt

--------------------------
************idle temps aren't really that interesting, nvidia throttles the gpu speed to around 300mhz versus max set, temps go down at 300mhz

************restriction on these blocks aren't bad.

[septim]

not bad temps for this particular parallel setup of yours...

[b@llz0r]

not bad?

37 under load is ing excellent in my books

[shazza]

Awesome, Hondacity. Amazing temps - very interesting to see how well the 2 x 4 Rad setup does. I guess I will just have to live with 50C at load on my GPUs and their measly little PA120.3 - but nice to know what can be accomplished. And that CPU likes being on it's own quad as well. Thanks much for all this interesting stuff.

[JOCKTHEGLIDE]

honda you sure have one insane rad setup.........

[Erasmus354]

check part 2 at post1.

Sorry I guess I was a bit too vague in my post. In the last parallel Tri-SLI thread Naekuh was all over it preaching how it couldn't possibly work. How he had tried it and failed miserably. How the middle card wouldn't get any flow. That was actually HIS image that he posted, and the sad thing is most people in the thread went along with him, I guess Post Count >>> *. Because when I posted it people immediately jumped on it as being a ludicrous assumption to make.

Anyways great work, those Heatkillers really look slick and your temps are superb. We now have had no less than 3 people post excellent and EVEN temps using this same parallel Tri-SLI setup.

[veedubfreak]

I'm not sure you have enough radiator capacity for this build

[Baleful]

Awesome tests Honda, thank you for taking the time to try and educate the community, it is greatly appreciated.

[justin.kerr]

Nice Results!

So, after seeing this cooling setup,I was wondering if a Swiftech mcr320 with Medium Yate Loons, would be enough to cool the 3 285's?? I ask because I am putting my 3 under water next week.... Damn they get hot, with stock cooling and over clocked in tri-sli...

[MomijiTMO]

not bad?

37 under load is ing excellent in my books

Bloodly oath it is. My ONE gtx260 hits 41C load in a one looper.


IanY. Dude, I have no grievance with you but from my perspective you seem to be on the defensive AND doing you best to discredit the results at hand. All the results say is parallel is viable. No where does he say parallel is the BEST although most would make that conclusion with the load temps. By slandering him you make yourself look silly. NFI where all this American philosophy garbage came from. . . .

Ok looks like this thread has polarised me, just like your actions with RRR's ban did. Where do you get off? I'm disappointed and thought your long break would have meant you weren't the same.

[jcool]

Nice Results!

So, after seeing this cooling setup,I was wondering if a Swiftech mcr320 with Medium Yate Loons, would be enough to cool the 3 285's?? I ask because I am putting my 3 under water next week.... Damn they get hot, with stock cooling and over clocked in tri-sli...

That depends mate... with medium speed Yate Loons and an MCR320 you are looking at around 13-15C delta between water and air temp loaded. While that is more than cool enough for GPUs (calculate air temp + 15 = water temp + 20 for OCed GPUs = GPU temp), it's not great temps. If you just want to silence them and don't care if they run at 50 or 60C, it's enough. Otherwise get a GTX 480/Feser/PA120.3 or equivalent.