The Un-Official Q6600 Chest Pounding Proves Nothing Water Cooled Temp Thread!

[NaeKuh]

Bah... okey for bragging purposes ONLY!



Ambients @ 16C, Coolant messured at 19-20C @ return on cpu loop. But the temp probe in my rad intake said 16.2-16.4C at the intake.
This is her everyday setting and she was loaded 100% non stop 24/7. Currently all my comps minus laptop + NAS is offline. Getting a new breaker installed...


Ummmm maybe i should show my general setup.... The board / gpu has been replaced with 2 8800GT's [there going on my 780i, which is going to be sent out to iandh for him to work on some nice blocks for it ] and a ASUS P5K-DLX.

H2O Gear is slightly different, EK Supreme, and MCW30 on North Bridge. Instead of GTX, DD680i, MCW30

[Talonman]

Wow, thanks NaeKuh!! I am extra glad to see you post. (For bragging purposes ONLY!)

You do have a super nice setup and your temps are outstanding. The dual loops with one dedicated to your 2 GPU's is also sweet and Xtreme.

Good to see I am not the only one running their system in a room about 60°F!

I also need to get into the water cooled GPU club like you...
(But you get double credit there!)
Thanks again buddy.

Did your switch to the EK Supreme from the GTX lower your temps much?

[NaeKuh]

Wow, thanks NaeKuh!! I am extra glad to see you post. (For bragging purposes ONLY!)

You do have a super nice setup and your temps are outstanding. The dual loops with one dedicated to your 2 GPU's is also sweet and Xtreme.

Good to see I am not the only one running their system in a room about 60°F!

I also need to get into the water cooled GPU club like you...
(But you get double credit there!)
Thanks again buddy.

Did your switch to the EK Supreme from the GTX lower your temps much?

its at 4C better then what the GTX could pull.

But rd-30 is at 21V. :P ~ 2.5 x DDC3.2's together in head pressure.

[ZenEffect]

with intel's themal spec saying it is within tolerable limits at 71c i believe 60 is pretty safe. my rig hit 62c last night while priming for 2 hours, but then again my ambient temp was around 80f *27c* as im stress testing different temp ranges to be sure that come summertime, i wont fry anything.

im pretty sure i have to rework the loop to get it a bit more efficient *got alot of gravity working against my pump right now* but i will do that when i lap the waterblock to 2500 grit this weekend and set my rads to push/pull

[Talonman]

Good luck ZenEffect and yeha, at 80°F the cards aren't exactly stacked in your favor...

Keep your chin up buddy, and you might just have to run er right up to Intel's themal spec then!

its at 4C better then what the GTX could pull.

But rd-30 is at 21V. :P ~ 2.5 x DDC3.2's together in head pressure.

4°C isn't too shabby. I'm sure the extra head pressure is helping the block too.

[ZenEffect]

Good luck ZenEffect and yeha, at 80°F the cards aren't exactly stacked in your favor...

Keep your chin up buddy, and you might just have to run er right up to Intel's themal spec then!



4°C isn't too shabby. I'm sure the extra head pressure is helping the block too.

the 80f is what was set to simulate "maximum ambient room temps"

typically i idle around 33 and hits 55 prime load at around 70-75f amb temps

anyone have any experience with feser coolant? ive got a bit on the way to me now just wondering if it would make any diff in temps?

and 3.933 is about it as far as im going to oc this cpu... my main concern now is lowering volts and temps.
and adding my 2900xt's to the loop.

[dethred]

How are you guys getting these ridiculously low temps? I am idling at 46/46/43/43 right now with a lapped CPU and two MCR220 radiators. Load has hit 65C with small FFTs. The fans are barely spinning, which I am sure accounts for a lot of it, but even at max fan speed the temps touch 60C and idle around 40C with 24C case temp.

[ZenEffect]

How are you guys getting these ridiculously low temps? I am idling at 46/46/43/43 right now with a lapped CPU and two MCR220 radiators. Load has hit 65C with small FFTs. The fans are barely spinning, which I am sure accounts for a lot of it, but even at max fan speed the temps touch 60C and idle around 40C with 24C case temp.

g0 + low vid + low volts + low ambient temp

[Talonman]

True!!

Right now my room temp is 60°F, and my mobo sensor reads 75°F. It is always 14°F to 15°F above my room temp.

My CPU has 1.51250v set in BIOS (Reads 1.50v in Everest), to get my 3.8GHz stable.

Just surfing the web, all my cores are right around 26°C currently.

One thing I wonder about is if my having an external RAD box is a small advantage too?

I don't have to worry about if the air my RAD is drawing, was pre-heated by the case first.

Whetever my current room temp is, you can bet my RAD is enjoying the same temp too.

[dethred]

My old setup had two MCR320's outside the case, and even with 55*F room temperature (winter time with the window open) the temps would reach 60C under load. Now, with my CPU lapped and two MCR220's inside the case it gets mighty toasty. I have my fans running at silent speeds which is nice, considering I can't hear my machine from downstairs anymore, but its getting way too hot. Outside temps are 71*F in Mid-February in Virginia today and I decided to go out for a few hours with the machine running. I walked into my room and it had to be bordering on 90*F. My case was 36*C and my CPU was IDLING at 60*C. Ouch.

I pumped the radiator fans up to max speed for a few minutes with the window open and a fan blowing in 71*F air from outside, and now its idling at 40C. Case is still 28*C though.

[Talonman]

I walked into my room and it had to be bordering on 90*F. My case was 36*C and my CPU was IDLING at 60*C. Ouch.

Wow man! Yeha that sounds a little on the warm side to me too...

Trivia: With the exact same BIOS settings that produces my 3.8GHz and 40°C max core temps, was run at a higher room temp. We fired up the wood/coal burner today (Trying coal), and ran the basement temp up to 71.4°F. I thought it was a good time for a temp run on my water cooling rig to see how it would do.

At 3.8GHz and 55°F room temp, Cores maxed out at right about 40°C.
At 3.8GHz and 71.4°F room temp, Cores maxed out at 50°C.

My room temp went up 16.4°F, and my cores max temp went up 10°C or 18°F.

Possible water cooling lesson for me: Lowering my room temp 16.4°F, will take 10C off my cores max temps... ?

I also noted that 16.4°F of a warmer air temp, made 18°F extra core heat! It's a cruel world isn't it!!

My temp reading equipment is far from professional quality, so my ambient to core relationship may very well be a direct and linear one at that?
It could be on my system, that 17°F higher air temp, produces exactly 17°F more heat on my cores.

This just serves to reaffirm that you could buy the best water cooling equipment in the world, but if you set it up in a hot room, your temps are going to be disappointing.

It may also serve to show the importance of not feeding your RAD warm air that your case had preheated. You probably would be paying with higher temps throughout your entire loop.
To the RAD, warm air is a performance killer!

Note: My Motherboard sensor is always 15°F above ambient on my rig.

Update: I am actually amazed how consistant my mobo sensor -vs- ambient difference is. My new number is 14.2°F for MOBO hovering above ambient, and still held true even at 71°F too.

[dethred]

Yeah, I have realized that higher ambients result in at least a 1:1 increase in temperature, but usually more it seems. I am just about to reboot and run it at 3.2ghz until I buy a window-mounted A/C when I move into my new place. Simply increasing the fan speed by about 25% resulted in a drop from 52C to 43C over the course of writing this. I guess these radiators don't like low fan speeds. I guess having five Hard drives mounted in the rack right in front of one of the radiator fans isn't going to help much either.

[Utnorris]

Yeah, I have realized that higher ambients result in at least a 1:1 increase in temperature, but usually more it seems. I am just about to reboot and run it at 3.2ghz until I buy a window-mounted A/C when I move into my new place. Simply increasing the fan speed by about 25% resulted in a drop from 52C to 43C over the course of writing this. I guess these radiators don't like low fan speeds. I guess having five Hard drives mounted in the rack right in front of one of the radiator fans isn't going to help much either.

You should use that window A/C as a chiller, not necessarily dropping below freezing, but just to lower your water to a steady temp regardless of ambient. I plan on doing this since I live in the BIG OLE STATE OF TEXAS and it gets mighty hot during the summer,

Anyway, just a thought.

Utnorris

[Talonman]

The trick would be to keep the difference in temperature close enouigh so condensation wouldn't be an issue...

I don't know what that number is, but do know there is extra performance to be had with cool air.

[dethred]

Well, now I am at 3.2ghz and 1.18v in windows. I am getting 45C load on Small FFT's with max fan speed and case temps at 22C. Thankfully the outside temperature is down to 50F (still ridiculously hot for February) and my room has cooled down.

By the way, I am not that concerned about lower temperatures. I'd just like a quiet system with a nice overclock that I can use daily. A window A/C would be installed solely to keep my room temperatures from letting my PC load above 60C. I figure a $300 watercooling loop aught to keep a Quad at 3.6 under 60C on load without the noise keeping me up all night. I hope that isn't too much to ask. :-)

[AndyM]

I'm unworthy, my ambient is usually near 80F, and I only have dual-core. But it is like 5F outside right now...maybe I'll throw the machine out the window and show you guys some temps!

[jcool]

g0 + low vid + low volts + low ambient temp

Not all true... low vid with these CPUs usually means less Vcore, but more Ampere --> even more heat than CPUs with high Vid when overclocked.

For comparison, this is with the same WC loop but different CPUs... 1stone has high Vid and keeps cooler in general, even though it needs more Vcore for 3,6Ghz (1,37 load)



Now this is my current CPU, running 3,6Gig at 1,31V... remember same cooling setup

I'm fed up with this one running too hot, SS is on the way. Should be interesting to see what this baby can do when shes not too hot for once

[NaeKuh]

How are you guys getting these ridiculously low temps? I am idling at 46/46/43/43 right now with a lapped CPU and two MCR220 radiators. Load has hit 65C with small FFTs. The fans are barely spinning, which I am sure accounts for a lot of it, but even at max fan speed the temps touch 60C and idle around 40C with 24C case temp.

this is exactly why this kind of thread is pointless. It only confuses the newbies in h2o.

Your lacking in a lot of parts where most people are maxed out on.

For my case, i have a much larger radiator. PA120.3. Most people are also running simular, or MCR320's.

Another thing is they probably have a better pump. Or there loop order is more optimized. IE. Not a lot of bends, shorter tubing used. A lot plays in h2o cooling. Mine is the ever so covetted, RD-30. Blocks will effect performance greatly in the combo you use. Which block with which pump on what type of system. Watercooling is never plug and play.

Finally fans used, and ambients taken. Changing these ever so slightly will bring large effects on the cpu side.


A good system will have all these planned out b4 laid out. A newbie will ask for part recomendation, and usually we will throw him a model system. Something we call generic, usually consist of an MCR320 + D-tek Fusion + D5 + Swiftech Micro Res. (you guys this is the Camry of H2O, very reliable, very simple, and good performance for $$$).

Once you get a bit more skilled, and you learn how you can tweek the system. things like variable pumps, Water temp probes, accelerators, and tygon silver tubing become more essential toys at your disposal (also meet the definition of an XS Watercooling System).

[2bb1]

NaeKuh:

I have MCR320 rad with 3 S-Flex running at 1600rpm, MCP655 pump, D-Tek Fuzion (botf gfx and cpu) and I have also tygoon tubing (1/2").

With my Q6600 G0 I get 80C load temps with only 1,44v (ambient 23C), this at 3,8GHz. I think I should have lower temps, so before I post something more about temperatures and so on in this thread; what is the best to do with the Fuzion to get the temperatures go lower? (I've removed the motherboard-thing around the cpu and my G0 are pretty flat).