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Old 10-17-2009, 10:31 PM   #1
misho
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Bad W/C temps, i7

OK guys, so as you all probably know already i did my first W/C project.

Specs: MCR320-QP, with 3x scythe sflex 1200rpm, about 50CFM push config, MCP655, swiftech apogee GTZ block, micro res and distilled water, 1/2 tubing

running core i7 @ 4.1Ghz, at 1.25V.

Temps are: 36,35,35,34 <--- idle
65,64,61,59 <--- prime95.
Room temp: 21C

Using Arctic Silver 5,

Here is a pic: no fancy tubing or any hard corners, pump is @ full speed (5)
Should the temps be this high??
Edit: There are 0 air bubbles, flow is very nice, the system is clean i am pretty sure, because i did have air before, tapped the rad etc, tilted the case and everything, and then it all became clean solid flow.
system is running for about 2 weeks now 24/7. with a bit of turning off sometimes.


Last edited by misho; 10-17-2009 at 10:33 PM.
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Old 10-17-2009, 10:41 PM   #2
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thats normal for i7...if you came from core2 processors...those have less heat outputs
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Old 10-17-2009, 10:46 PM   #3
misho
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Really? yes i did come from an E8400.

So you think these temps are good? for i7 at just 1.25V? Don't forget, nothing else is hooked up to the loop, just the cpu, and air flow is very good .

Edit: and check this out, from another thread below:

Quote:
Originally Posted by Johnmark
i7920 4.2Mhz @ 1.38v, the rest is in my sig.
Rad mounted inside on the top of the case, and I have the side panel off right now.
At idle ambient air in the case is 22c, Res. water temp. is 24.5c, CPU cores are 37,37,40,40 and CPU is 28c.
This isn't much better than the fusion v2 I stuck on in the first place.
The rad fans are turned way down so I can get the water much cooler.
Under load and water at 25c temps are around 67c
res>cpu>nb>gpu>rad>res
he is running the i7 at way more volts, and his loop has NB and GPU as well
true he is running a thicker feser 360 :\

Last edited by misho; 10-17-2009 at 10:51 PM.
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Old 10-17-2009, 11:04 PM   #4
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there is room for improvement....
1. remount..it could be a bad mount
2. increase fans...increase noise
3 increase rads...increase noise coz you need fans

but the temps on the i7 has been above 60C with ht on. thats with water..and abit of oc
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Old 10-17-2009, 11:06 PM   #5
misho
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Quote:
Originally Posted by Hondacity View Post
there is room for improvement....
1. remount..it could be a bad mount
2. increase fans...increase noise
3 increase rads...increase noise coz you need fans

but the temps on the i7 has been above 60C with ht on. thats with water..and abit of oc
Yes HT is on. Also, what do you mean by bad mount? like the placing??
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Old 10-17-2009, 11:10 PM   #6
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Sounds maybe just a tad on the high side, but actually looks pretty good to me, escpecially since you are running relatively low speed fans. Nice OC at 1.25 Vcore.

Can't quite figure out how your fans are setup. You're pushing air from the outside to the radiator? And then how is the air being exhausted? Have you tried running with all sides and top off the computer? I know you said you have good airflow, but it's hard to see just where the air is flowing in your photo.
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Old 10-17-2009, 11:21 PM   #7
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Quote:
Originally Posted by shazza View Post
Sounds maybe just a tad on the high side, but actually looks pretty good to me, escpecially since you are running relatively low speed fans. Nice OC at 1.25 Vcore.

Can't quite figure out how your fans are setup. You're pushing air from the outside to the radiator? And then how is the air being exhausted? Have you tried running with all sides and top off the computer? I know you said you have good airflow, but it's hard to see just where the air is flowing in your photo.
Yeah got more pics:
This is the back side of the case:



So basically its that, on top of the case are 2 x 140mm low rpm fans, sorry i cant take pics, camera is not here
oh and thanks for the OC

Air is sucked in from outside, pushed through the radiator into the case, then sucked out by those 2 x 140mm fans, up from top.
Also about that fan speed, everybody said to get low RPM fans because they are the best with the MCR320.

Last edited by misho; 10-17-2009 at 11:27 PM.
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Old 10-18-2009, 12:28 AM   #8
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No, everybody says that you can get away with low RPM fans because the MCR320 fins aren't restrictive compared to say a Black Ice Xtreme radiator.

It does not mean that using higher speed fans on the MCR320 won't give you any benefits.
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Old 10-18-2009, 12:36 AM   #9
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My setup is in my sig. Using an MCP655-B with a Primochill Typhoon III, CPU subloop is MCR320 with Scythe S-Flex's ("F" models) at about 4-5V (minimum starting using various resistors soldered inline - fan controller coming soon), EK-Supreme, mobo (and VGA loop when I get the block from Eddy) subloop is 2* MCR120 with the same fans, EK-FC Classified mobo block. Temps are at mid-40s at idle, high 60s at load, using 1.3V for 3.4GHz (I have the worst 920 ever). When I used to be running 3.8GHz out of this chip, 1.4V was required, and I had to turn the fans up to a full 12V - load temps were high 60s again.

So yes, these chips run damn toasty, but they can take it - I value silence, so my fans are at the moment weaker than a gnat's fart, but that's enough airflow to keep things under control.
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Old 10-18-2009, 07:17 AM   #10
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Quote:
Originally Posted by misho View Post
Yes HT is on. Also, what do you mean by bad mount? like the placing??
A bad mount is when you either put down too much TIM or not enough. Also the TIM may have not set properly. I recall guys haveing that issue with the MX-3.

Also you may not have tightened the block down properly. Seeing you are running a GTZ, I doubt that is the problem.

What TIM did you use? You could also try switching your fans to a pull config. According to Martian's test, slower fans did work a bit better in pull.

Overall, your temps don't look bad. Doing all that might only net you a degree or 2, so its up to you if that is worth it to you.
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Old 10-18-2009, 07:29 AM   #11
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Temps seems normal to me...there might be some small room for improvement though. I see your GTZ isn't mounted properly, it should be rotated 90 degrees counter clockwise according to the directions.
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Old 10-18-2009, 12:18 PM   #12
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Quote:
Originally Posted by misho View Post
Yeah got more pics:
This is the back side of the case:



So basically its that, on top of the case are 2 x 140mm low rpm fans, sorry i cant take pics, camera is not here
oh and thanks for the OC

Air is sucked in from outside, pushed through the radiator into the case, then sucked out by those 2 x 140mm fans, up from top.
Also about that fan speed, everybody said to get low RPM fans because they are the best with the MCR320.
Just a bit off topic, but are those shrouds on the top of your case? If so are they aftermarket or did they come with the case?

On subject, I had an MCR220 with some good 1200 rpm fans. When I put the GT 1850's on it made a HUGE difference (several deg.), granted that little rad was loaded up pretty good.
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Old 10-18-2009, 09:14 PM   #13
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Quote:
Originally Posted by Johnmark View Post
Just a bit off topic, but are those shrouds on the top of your case? If so are they aftermarket or did they come with the case?

On subject, I had an MCR220 with some good 1200 rpm fans. When I put the GT 1850's on it made a HUGE difference (several deg.), granted that little rad was loaded up pretty good.
Yea, those shrouds are stock with the case (Xclio 1000, check it out, real huge case + very cheap).

and what is the GT 1850? better fans?

my fans move about 50CFM.
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Old 10-18-2009, 10:26 PM   #14
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The GT's are Scythe GentleTyphoons. They push more air and are quieter at the same time, however the 1850s are out of stock everywhere right now. There should be more coming to retailers in a few weeks. The next fastest are 1450s and are readily available if you want to give them a try, but I'm not sure there will be a significant change over your 1200s.
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Old 10-18-2009, 11:44 PM   #15
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misho: Why do have dog nail clippers in your case?

I have Kind of similar setup, MCP655 + GTX360 rad, 1/2" Tygon tubing, Apogee GTX, 3x Silverstone FM121 fans.
CPU is running 4.2GHz and HT on, 1.365V Vcore, idling at 42-46C (ambient 24-30C), 24/7 WCG load on all cores = 78 - 86C.
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