temps, silly question

[drbhatti]

i have my system running as it says in the sig.

now, i have recently noticed that i get virtually no difference in temps when i run fans or when i run my radiators passively.

i have a piece of masterkleer running between the two rads, mounted on the back of my mozartTX. air is being pushed from inside -->rad -->outside exhaust, fans only on one side of rads.


im quite sure i dont have any bubbles, and there is no real obvious restriction to flow (ie the tubing is not kinked).


my temps are around 30C idle and go upto 44C at full load.
ambient is around 20-22C.

what am i doing wrong?!

[WoZZeR999]

How long do you leave the fans off? If you have a lot of water in the system, it may just take a while to heat up.

[drbhatti]

well, i can leave it off all night.

[philbrown23]

it might be that you have your fans pushing the warm air from in the case through the rads, instead of the cool air from the room through them, if I were you I would just switch them around and you should notice a difference, because as far as I know thats the general rule of thumb with watercooling.

[Giannis86]

what kind of fans are you using and at what speeds are they running? could it be that something is blocking the airflow of the fans? you could try putting the fans on the outside on push config as a test to make sure that they have adequate air to push

[drbhatti]

they are 120mm medium speed yateloons. make very little difference if i have them on high or low. i recently cleaned a lot of dust off the rads, so they are blowing air through them.

[Giannis86]

well, i can leave it off all night.

this is in idle mode right? i doubt you would be getting same temps in load with passive as opposed to with fans.

If thats the case, you should be comparing passive load-idle temps vs fans load-idle temps and see if it really makes a difference or not.

[ripken204]

ya idle temps shouldnt change much with fans on vs off. for idle i leave my fans at 5v, they are barely moving, and inaudible.

[oerekum]

I don't really see the problem. Judging by the things listed in your sig I'd say you're barely stressing the radiators therefore airflow wont do much.

[MomijiTMO]

Your temps are pretty high for the amount of rads you have AND it's just a CPU loop. There isn't much of a temperature gain when going from 2000 Kazes to 3000 Kazes so the fan speed is normal. Maybe your pump is failing?

[Kilyin]

Uh, 8 degrees above ambient isn't "high".

[mrlader]

I leave mine off at idle all the time my temps go up no more than 5 deg. on the cpu and not at all on the gpu. They are seperate loops.

[Soulwind]

Frankly, 30c idle/44c load with 22c ambient on a cpu at 1.425 volts isn't bad at all.

You'd probably get a few degrees cooler if you reverse your airflow and pull the cooler outside air into the case rather than pushing
the warmer case air out. (use your other case fans for exhaust), but your temps look to be pretty much in the 'average/normal' range.

(with a cpu only loop, you're not stressing either rad at all, so having both really isn't buying you any cooler temps if that's what you were expecting)

[drbhatti]

ive just brought an ek 8800gtx block - i should be OK with that in the loop, after my CPU, shouldnt i?

quick question i have - should i remove the 4.4 nozzle in my cpu as itll make it less restrictive for the overall system?! id rather only tinker with it once, tbh, because draining and refilling the system is a right pain!

[mcoffey]

ive just brought an ek 8800gtx block - i should be OK with that in the loop, after my CPU, shouldnt i?

quick question i have - should i remove the 4.4 nozzle in my cpu as itll make it less restrictive for the overall system?! id rather only tinker with it once, tbh, because draining and refilling the system is a right pain!

It's hard to say really,

Going to a larger nozzle will incease flow rate, but not sure if your close enough to the falloff point where it will make a significant difference iin temps. Unless your able to test it yourself, you'll never really know for sure what's effecting your temps.

e.g. Was it the reduced flow rate that made my temps go up, or adding the EK block or both. Or, with the EK block in the loop, would increasing the nozzle size help at all.

Sorry I couldn't answer your question directly, but that's about the best anyone can do unless they've done a build or loop exactly as you have with those parms. and changes.

gl and let us know what you find,

andyc

[drbhatti]

well, i got my ek block today, and installed it after the CPU.

temps idle are CPU: 32C (this is 8x410 1.3375V, not as in sig), GPU 48C
load CPU 51C (is this too high), GPU 51C

so, it seems to have worked wonders on the graphics card, but it seems that my cpu is still struggling to cope.

i thought that having two 120.2 rads would be a good idea, but they dont seem to be working too well (i see peopel running 8800gtx+CPU on 120.3 and doing much better).

or is it because the ambient is quite high today (23C)?

[Kilyin]

Sounds about right to me.