What's going on here?

[douirc]

I'm confused. I've got a dtek fuzion on an e6600 @ 3.6 with 1.45v and bipiii with yate loon low cfm fans. I've got a dd-d5 at half speed and the flow is awesome. If I go full speed on the d5 the temps don't get better, plus the water in the res becomes so violent that it creates air bubbles.

When i boot into windows i'm idle at 32C. without touching the machine, after about 10-15 mins sitting idle, the temps are up to 42C. what the heck is going on? the rad is mounted on the outside of the case, so the comp shouldn't be influencing the temps. it's 25C in my apt, so i figure idle temps should be between 25 and 30C. what the heck is driving the temps up to 42C on idle? the cpu jumps around from 0-2% usage. i'm tempted to replace my bipiii rad with a thermochill pa120.3, but i can't imagine a bipiii dedicated to the cpu can't keep it cool. i'd hate to fork up more loot on a solution that won't fix the problem.

I'm also curious. when i start orthos or p95, i noticed the temps shoot up to 55C almost immediately. I would have assumed under water cooling it would take longer for the temps to reach max on load since it takes longer to heat up water versus air cooling. i could understand if the temps shot up immediately under air, but wouldn't it make sense for the temps to increase steadily versus a spike?

here's a few pics:
http://img513.imageshack.us/img513/1254/comp003jo5.jpg
http://img513.imageshack.us/img513/3329/comp005jh8.jpg
http://img510.imageshack.us/img510/9408/comp006xx8.jpg

[douirc]

hm...think i found my problem. apparently keeping a computer under a desk is a bad idea. i moved the computer out from under the desk and my idle went from 42 to 35 and my load went from 58 to 50. but isn't 35/50 still high for a bipIII and fuzion? I see everyone else posting idle around 25C and load around 45C on the same 3.6 @ 1.45v oc.

question - the fans are in pull configuration. would it matter if i switch them to push? i guess either way i'm recirculating warm air under the desk?!

[douirc]

ok, been playing some more and was able to drop the cpu voltage 0.25 in bios. not it's running 1.440v and with 33/47 temps. those look better for a room that's at 25C? I still don't know why i can't run under 30C idle. wouldn't that be more appropriate?

[KaptCrunch]

hear any tickling sound @ rad?, its your SLI furance below keeping the temps high, need to vent the gpu exhaust out of the case

[douirc]

hear any tickling sound @ rad?, its your SLI furance below keeping the temps high, need to vent the gpu exhaust out of the case

no ticking at the rad. what would that mean? also, the sli setup stays cool. just to confirm, i opened the case and pointed an industrial fan inside and the cpu temps remained the same, so i know the case temp is at ambient temp and is not affecting the cpu temp.

the idle temp is much better now. I'm sitting at 33C as I type this post. i still wish it was cooler. i really don't get how others are able to get under 30C with 3.6ghz at 1.45v, unless of course the room the comp is in is 20C :).

[KaptCrunch]

tickling = low fluid or air pockets

[douirc]

tickling = low fluid or air pockets

hm...when i start my machine i definately hear a little trickling noise from the rad, but it goes away within a few seconds. i just assumed it was the sound of water rushing through. does that mean i have air bubbles in the rad? any suggestions on how to get rid of 'em? the res looks solid when the system is running, no air bubbles, so I assumed the system was solid.

[TopherTony]

since your rad is the highest point of the whole system, there is a high probability of air pockets in your res. This is bad because your liquid isnt getting all cooledwhen it passes through. there are threads in the stickies on how to eliminate air pockets

[SparkyJJO]

Are the fans pulling or pushing through the rad?

I think the BIP benefits from higher CFM/pressure fans than the D12SL-12's. Comparing your system to mine, you are dissipating about 131W of heat. My CPU pumps out about 180W plus I have my X1950XT on the same loop (however many watts it is). I get similar temps idle and load on my CPU as you do (this is with both CPU and GPU under load). The main difference here I think is the rad type. How much air do the fans feel like they are moving through the rad? If the air is restricted too much then your temps won't be as good.

To help flush any air out of your loop, tip the case while the pump is running so that the barbs on the rad are higher than the rest of it, holding the side that is the outlet higher than the inlet side (basically holding your case on one corner). It can help to get the air out.

[leo_bsb]

maybe a bad mount?

[douirc]

ok, thanks for all the responses. i'll def try rotating the case to bleed the air from the system. i'll have to take some of it apart since it weights a frikin ton! :)

as for the temps, i'm much happier with the results. 33/47 looks pretty good, especially since the temps at home are around 77-78F (i live on miami beach).

[HotGore]

Your res seems a little low to me. I get about the same temps, but I have an 8800 GTX on my loop.

[Section8]

Sounds like the loop just needs to be bled some more. Most likely there is an air pocket stuck in the Rad like someone else has stated already.