Cooling high water cooled temps

i'm getting high temps of 42c idle 54c load, case temps are 35-38c
room temp is about 26c-27c
cpu is at 1.55v 2.75gig

setup is
storm G4 cpu block
DD NV68
thermochill 120.3
3xpanaflo H fans at about 6volt
Ehiem 1250

http://phi.bulldoghome.com/photos/BDRES/phi_bulldoghome_com/watersetup.jpg

in that pic it was still bleeding with case layed on its side.
i've got pretty much most of the air out now.
bringing the fans to full speed only drops cpu temp about 1 or 2c at load

went from using a stock amd heatsink which was about the exact same temps i'm getting now

anyone have any ideas?

 

Are you sure you got all the air out of that rad? Did you twist and turn the case about or just leave it laying on its side?

 

What motherboard is it? Can you confirm the accuracy of its temperature sensors?

 

Fans pulling or pushing???

I would usually mount the rad to the top of the case and have the fans on the underside pulling air from outside the case which might be worth trying.

Where is the "T" line going to???

No res??

 

Perhaps it's just me, but...

1) Northbridge cooling is a wonderful idea if you have a very efficient system already in place. Most NBs can function well on passive cooling (or fan cooling if you must) and introduce a LOT of heat into the loop.

2) There is no reservoir in your loop, at least that I can see. A res enables the air to be bled out of the system easily and quickly, as well as providing an extra place for the water to cool to ambient for a second or two more.

3) Second what coolmiester said about the fans. May wish to check that. Also, if there is any other way to check your radiator efficiency, you may wish to do so...make sure there is air being pulled through the fins. No air, no cool.

Good luck!

 

yeah i been turning this stacker case around like crazy.
but think there's only a really small amount of air trapped in the rad as i can bare hear the water slosh about in it while twisting the case about

in that shot the case is laying down on side and t-line is pointing up out of case.

i have the fans pulling air upwards.

decided to try without a res this time as before the temp was about the same anyway with a res.

the motherboard is a EPOX 9NDA3+, i'm not sure if the reading is correct or not but i am able to overclock slightly higher using the same volt's

http://phi.bulldoghome.com/photos/BDRES/phi_bulldoghome_com/watersetup2.jpg

 

<off topic>
What's that PCI card? I've never seen one that doesn't fill the whole PIC slot...
</off topic>

 

it's the relay for my pump.

 

Off topic

What type of case is that?? I`ve got a 120.3 and couldn`t find a case that had a psu at the bottom and enough space at the top for the rad.

 

looks like the PSU has been relocated.
the original PSU 'cage' looks cut.

 

Clogging?

First thing to check for is clogging, the jets could get clogged easily if there's no filter. I don't know anything 'bout G4 mounting.... could the G4 be rotated 180? that way the hose routing would be better. there seems to be a sharp bend from the pump into the G4.

Or give that tube a more graceful entry into the G4... by routing it over the exit tube going to the GPU?
edit: fugettaboutit.. I just looked at the pic again.... make the G4 exit tube longer, so the intake tube goes in with a smoother bend.

Thas all I can think of... goodluck!

 

I think that one is a CM Stacker. It has 2 sets of PSU mounts.

 

Yeah make sure that Waterblock is mounted correctly on the CPU. Also you might want to cheack the water block for clogging because the jets inside is are small in diameter and clog easy.

Hope this helps

 

I'm sorry, but there is nothing wrong with your loop. If your room temperature is 26 to 27C (in the UK? Where do you live? A greenhouse?!?) then this is the best temps you will get --unless you crank your fans up a bit. Try 9V.

 

The high temps could because of the fans at 6 but i still think its a cloged G4 or uneven waterblock.

How much Thermal Paste did you apply to the CPu to? It should only be very thin.

 

Heh, you may be right... case temp of 35-38 Wow!
I just thought his Idle to Load temp would be a wee better than that.

I do believe that some people cut thier tubing too short, people say to use the least amount of tubing! But too short, and you're putting off center stresses on the CPU block, leading to poor block contact with CPU die.
(goes for GPU NB blocks too).
Some, I like to call anal... tie and hang thier hoses so there aren't Lateral forces at work.

 

I had a pair of fans exhausting hot air out the top of my case, and my loop with a dual 120mm radiator cooled my three blocks worse than a single radiator. When I switched the fans to pull outside air on to my rad, the temps dropped considerably.

I love my 43°C, but I know the only source I have at the moment is reporting it way too high - my mobo. My inline temp probes are on the way

 

hi,
cheers for all the tips. been away testing diffrent things.

i've tried everything now........re-mounting block.....re-plumbed with out the nv68 block. even tried rad/pump/res outside of the case

now changed to a DFI ultra-D and that board is reading temps a little bit higher.

i decided to try with a res on too and i noticed water was'nt even comming back in at a high rate, was like a tap on slowly. plus temps shot up even higher with a res on, is there more pressure when there's no res?

i've opened the the block 2-3 times and cant find anything blocking the jets either.

my next idea is to try a more powerful pump. but i thought this 1250 would have been up to the job.

would you guys go for the D4/laing/650 or a ddc?

 

Like Nexxo said those temps aren't what I'd call 'extremely' high. If the temps went up with the different board, what makes you think the mobo temps are reliable? When you have everything on, do the blocks feel too hot to the touch? Maybe you should see what the water temp is? Lastly, does your GPU have a temp probe that you can access?

Have you checked the temp with the CPU running at stock speed?

 

I'm running a modded DDC through a Dtek WW, MCW50, HC, Res. The incoming water to the res is "very" fast, if I put my finger lightly on the barb.. water shoots all over.
As long as there's large enough barbs on the res. there's no real flow difference to not using a res.
(there's a pic of my res in the "pump performance info" thread)

It sounds like you may need a higher head pump. If you're ok with modding...
the MCP350/DDC is hard to beat. 13' of head @12v 14.5' of head @13.5v
With the Flow mod it's an exceptional performer.
BIG plus is that it's virtually silent i.e 1048 level of pump noise.

I hear... the D4 is irritatingly noisy if you value silence. DDC beats it in a restrictive system, and your GPU block seems mighty restrictive.
[Edit] G4 block too!! ohhh the resistance!!

Good-Luck!