Please post here anything else (not relating to Maxwell technical matters)
User avatar
By b-kandor
#205107
A hair dryer (not a heat gun) helps to loosen the compound, some of the factory installed ones are really stuck....
Mihai wrote:Yes, but not by that much, plus the graphics card would be a lot cooler. Usually the fan on the graphics card make the most annoying noise. You would have to remove the supplied fan from the graphics card. Trickiest part is detaching it from the gpu, it's stuck with thermal compound pretty good....just twist the heatsink back and forth instead of trying to remove it in one go.
User avatar
By deadalvs
#205111
don't most of the models have additional screws and plastic crap to take away, that would have optimated the air flow ?
User avatar
By michaelplogue
#205126
Older video cards were pretty easy to mod for water cooling. However, the newer, dual board systems require quite a bit of surgery in order to prep them for water cooling. They do make kits for them - and they are very brand/model specific. Most of these newer cards also have a full cover over them to help direct the air flow. It also cuts down on the noise quite a bit. My current system has two, dual GPU cards (total of four fans going), and it's pretty quiet.

I've never bothered watercooling the chipset though. If the stock system is pretty lame, you may want to consider it. There are also some very good, high performance cooling fin/fan kits that do an excellent job on keeping them cool as well.

Just keep in mind: The more items you add to your water cooling system, the hotter the liquid will be overall. You'll need to be sure the radiator or passive cooling system can keep the fluid cool enough for the amount of overclocking you want to do. Plus, the water will be 'pre-heated' by whatever is previous in the chain. If you water cool your cpu and the chipset, your liquid is going to be pretty warm by the time it gets to your video card.
User avatar
By deadalvs
#205128
makes sense, of course.

let me add that graphics cards are not needed when rendering (yet... hehe), thus they don't need to be water cooled.

so maxwell overclockers might want the full freeze on the cpu. and not waste «energy» on the GPU.

it sounds so easy... :)
User avatar
By deadalvs
#205130
nearly as easy as time-travelling ... :P
User avatar
By Mihai
#205135
Watercooling isn't really to keep temperatures to an acceptable level, it's for more extreme overclocking or for keeping noiselevels down.

The thing is that if you remove one fan from the case (the cpu) you will just hear the other ones more clearly :) And the most annoying ones are on the gpu and the motherboard. Do NOT get a motherboard with a northbridge fan. When you make the case quiter that little fan will drive you crazy. These newer workstation boards have passive cooling with a heatpipe design, nice and quiet.

So if I where to build a watercooled system I would cool the gpu also, not just the cpu. If you just want to cool the cpu, then better get a good quality silent fan for the cpu, like ones Zalman sells, rather than spending 250$ on a watercooling system.
User avatar
By deadalvs
#205139
i'm pretty sure that a few noisy fans won't make such noises:

[malevolent creation kicks ass]
http://www.youtube.com/watch?v=dPJL68BsC_s

* * *

noise is no problem for me. i listen to sound mostly when working, via headphones.

it's just about X–TREME overclocking ...

* * *

thanks to all for all the help till now !!

* * *

who listened to the whole song ?
8)
User avatar
By -Adrian
#205211
noise is no problem for me. i listen to sound mostly when working, via headphones.

it's just about X–TREME overclocking ...
Then the Zalman Reserator is not the choice for you being a passive cooler. Use a decently sized radiator (dual 120mm, or even triple if it fits) with fans at 7v and you'll have a quiet, yet well performing solution. There are stronger cooling options than plain water of course but i'm guessing you're still aiming for everyday working performance, not benchmarks, right?
User avatar
By deadalvs
#205216
-Adrian wrote:
noise is no problem for me. i listen to sound mostly when working, via headphones.

it's just about X–TREME overclocking ...
Then the Zalman Reserator is not the choice for you being a passive cooler. Use a decently sized radiator (dual 120mm, or even triple if it fits) with fans at 7v and you'll have a quiet, yet well performing solution. There are stronger cooling options than plain water of course but i'm guessing you're still aiming for everyday working performance, not benchmarks, right?
actually i'd aim for benchmarks...

it's just that the reserator is very efficient and takes the hear right at the heat source. i'd like to try to badly-overclock which is kinda dangerous with normal fans. actually i'd like to use both at the moment's feeling.

--> reserator II plus one or two large fans that go thraight thru the box.

of course i took a look at the on-cpu zalman fans which i think are very cool, but water's (water with that additive) more efficient.
User avatar
By -Adrian
#205296
deadalvs wrote: it's just that the reserator is very efficient and takes the hear right at the heat source. i'd like to try to badly-overclock which is kinda dangerous with normal fans. actually i'd like to use both at the moment's feeling.

--> reserator II plus one or two large fans that go thraight thru the box.

of course i took a look at the on-cpu zalman fans which i think are very cool, but water's (water with that additive) more efficient.
I think you misunderstood me. The Reserator kit contains a passively cooled heatercore that cannot perform as well as one with airflow, just like your body starts to freeze much faster when it's cold and windy. So my suggestion was to use a dual (fits in average comp. case) or triple heatercore with fans (example) in your system to better cool the circulating water.

Another very important part is the waterblock (example). That's the part that sits on the cpu/gpu/etc and tries to extract as much heat as possible into the water. If you use a weak performer the water simply won't heat up and you get something much less efficient than good air cooling (copper to air vs copper to water to air). Check out some websites and see how current waterblock rank to ease the purchase decision.

If you want to get more extreme, there are options like adding Peltier elements below the waterblock(s) (high power consumption) or phase change cooling, for instance VapoChill LS (expensive).
User avatar
By deadalvs
#205298
ah, i see... yes, that was a misunderstanding and not it's clear what You mean...

let me think about it...

thanks for pointing that out !
User avatar
By deadalvs
#205965
ok. got my new system now. win xp 64, core 2 quadro, 2.66 GHz original

it's built in a thermaltake «thai chi» tower which has a watercooling unit directly built-in.

i ran some tests - with my brother who helped me greatly building it - the result was stable @ 3.66 GHz with 100% stress tests for more than an hour and cinebench tests (xcpu: 1961 points)

now i installed maxwell and it crashed all the time @ 3.66 GHz, but it worked with 3.33 GHz.

we put up the voltage a little, could this be the problem that maxwell crashed ?
where could be the problem ?
By numerobis
#205992
congrats! very nice sys! :D
and i think 3,3ghz is a very good result for a quadcore...

but why do you jump from 3,3 to 3,6ghz? why don't test 3,4 o 3,5?

i normaly test oced systems with prime95 - there is now also a multicore version available called orthos.

http://sp2004.fre3.com/
http://sp2004.fre3.com/beta/beta2.htm

you can ran stress tests for cpu, ram or blend cpu/ram.

maybe cinebech is not that hard for ram/board like maxwell is. i would suggest to test some higher settings for vdimm and vMCH (ram and board).

and always watch your temps!!! four cores can run very hot!

there is a nice little program called coretemp, that delivers the most exact temps.

http://www.thecoolest.zerobrains.com/CoreTemp/
Last edited by numerobis on Sun Jan 21, 2007 12:08 pm, edited 1 time in total.
User avatar
By -Adrian
#206001
Yes 3.3 is very good for a Kentsfield, congrats! Post your current settings so we can see where you're at and if there's something you could improve.
User avatar
By deadalvs
#206010
-Adrian wrote:Yes 3.3 is very good for a Kentsfield, congrats! Post your current settings so we can see where you're at and if there's something you could improve.
cpu voltage: 1.5375
(might that be too hign ?)
enhanced power slope: enabled
front side bus voltage: 1.250

multiplier override: manual
host clock frequency: manual

processor multiplier: 10
host clock frequency: 333

--> 3.33 GHz

system memory speed: set to 667 MHz (it is 1066 MHz ram)
memory voltage: 1.84

* * *

i might try some 266 based configs

* * *

i'll also have to glimpse at the cpu temperature which at this config is too high under long, full load.
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