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[Solved] 49 C Idle Temps @ 1.392 V on i7-920 watercooled Setup, Please Help

post #1 of 11
Thread Starter 
I finished my water cooling loop about 2 months ago and I noticed my idling temps from the get go was:

Core #0 49C
Core #1 48C
Core #2 48C
Core #3 48C

Ambient Room Temp: 22 C

This doesn't seem right to me and even now two months later the results haven't changed.

My current CPU is a i7-920 running at 3.8 Ghz on 1.392 V (Looks like I had a very bad bin because I've tried multiple settings to get it to run @ a lower voltage at that frequency)

I also have two HD6970 in CFX with Idling temps around 50 C on an P6T Deluxe V2 mainboard.

I'm running a single water cooling setup with just the CPU. Using an XSPC Rasa CPU block, an EK-XTX 360 RAD with Push-Pull and the XSPC Dual Bay Reservoir Pump Combo with 1/2' ID Primochill Tubing in a Cooler master Haf-X case.

Im wondering if anyone might have any idea as to what the issue here is?

Thanks =)
Edited by r3quiem - 2/21/12 at 7:50pm
post #2 of 11
Did you try to reseat the CPU block? Maybe a different pasting method?
Baby Blue
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Baby Blue
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post #3 of 11
Yeah I would try reseating the cpu block. Also what TIM are you using?
post #4 of 11
As always it is what is the temp under 100% load for perhaps 10 min. If it stays at 49C that would be just great,would it not?

EDIT: if temp stays high under load I would be thinking of opening up that cpu block,perhaps it has a restictive amount of sediment inside it.
Edited by PCCstudent - 2/21/12 at 6:22pm
WC Rig
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WC Rig
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post #5 of 11
I'm idling at 41c with a similar system...
Beast Machine IV
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Beast Machine IV
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post #6 of 11
Thread Starter 
Alright I think I'll try re applying the TIM again and post back tomorrow. Just some extra info if it helps.
The fans I'm using are:

Pull - 3x Yate Loon D12SL-124UB 120mm - Rated Speed: 2200 RPM & Max Air Flow: 88 CFM
Push - 2x BitFenix Spectre Pro 200mm - Rated Speed: 900 RPM & Max Air Flow: 148 CFM

Have a Cooler Master 200mm Megaflow (700 RPM & 100 CFM) Fan on the front for Intake and a 140 mm (2000 RPM & 61 CFM) fan for intake in the rear.

As well as another 200 mm Megaflow (700 RPM & 100 CFM) fan on the side for graphic card which is also intake.

All fans are running at 80% of their max speed.

The TIM I used was Arctic Silver 5 - High density Polysynthetic Silver Compound
post #7 of 11
Well that TIM is not good imo. It has a cure time which can take a while to get to its optimal temperatures.
post #8 of 11
people and their issues with as5. Guys listen up for one more time the cure time will only drop temps by maybe 1-2c at most. I use it and even with my 8150 cranking 4.4 under a 620 my temps stay at 53 full load.

Personally I'd say pull the block check the base make sure its good and flat first then see if its nice and smooth or not if not then lap it if so then move to step 2
open the block and check it. I got a cpu block a few years back forget the company now But, i noticed the fittings didn't tighten down properly so I checked it. What
I found was they didn't get the part under where the fittings screwed in milled properly and it wasn't allowing them to seat down all the way. But, there is always the possibility of an air bubble
or some kind of blockage in the block that is causing the issue. if not then start checking other components for blockage or air bubbles.
post #9 of 11
That is a lot of voltage for only 3.8 Ghz....
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Grog
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post #10 of 11
Thread Starter 
I should have mentioned I ran that TIM for 2 months just to be sure and the temps didnt improve. However I did find out what the issue was. THANKS to everyone that mentioned i should check the TIM.

I went to remove the TIM when I noticed a very thin plastic film on the Rasa CPU block. (I did remove one that it came with initially but looks like there was a second one under it) Very amateur mistake on my part and I'm glad it didn't melt and get stuck onto the CPU block. I removed the Film, cleaned up the block and CPU with Arcticlean and now everything is working great. My current temps are:

2vagvf5.png
It dropped almost 13-C Which is awesome . Thanks Again everyone.

I think i got a bad bin I tried several different configs from my own to various others on forums suggested to me to hit 3.8-3.9 Ghz while stable under 100% load and 1.392 was the lowest I could manage.
Edited by r3quiem - 2/21/12 at 7:48pm
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