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Windows 7: Good cooler for I7-920 OC

11 Jan 2011   #31
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

I can see two concerns,

1. keeping your computer case in a small confined space with no air flow will make things worse, it will just circulate hot air.
Move it to somewhere with no airflow restrictions, in the open is better. Minimum of 10cm from any wall or desk for the back and sides.
Better to not set it on carpet as this restricts the air flow as well. Depending on your case.
Still can't see what case it is, can you tell us the brand and model?

2. There are a lot of cables between the HDD cage and the motherboard, try and re-route these cables out of the air flow path, this will help.
Get some cable ties (zip ties) and secure them out of the way.

Did you check the EIST settings?
This will allow it to run cooler when at an idle, even on a medium load it won't run at full speed, when full power is needed it will speed up very fast.
The EIST allows my computer to run at 2-3C above room tempurature when at idle, it's quite, cool and uses less power.

I would check that the CPU paste (TIM) is evenly spread and a thin layer.
Too much paste can be as bad or worse than none, it should be almost transparent. You are just filling micro imperfections in the metal surface.

If your Son's computer is not OC'ed and hitting 90C at 100% CPU usage, that indicates a CPU cooler problem.
If it is OC'ed, then I would lower the OC until the heat problem is taken care of.

EDIT:
Those Temp apps are showing 133 X 12 = 1596 MHz, so the EIST is enabled.


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11 Jan 2011   #32
linnemeyerhere

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Tanya,
Lets try something. Take the side off and re-install the system and lets see how the temps do? Yes the wiring is routed less than ideal for air flow. Yes the fact the whole shebang is in a cubbie hole makes hot air recirculation a concern. If it was me I would have gone with a Noctua fan in front and even for the CPU as the Noctua's model is for pushing air against a load......something most fans just don't do well. Then lastly pull the computer as far forward as you possibly can even if it overhangs a little.
Noctua.at - sound-optimised premium components "Designed in Austria"!
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12 Jan 2011   #33
TanyaC

Linux Mint 17 Cinnamon | Win 7 Ult x64
 
 

Quote   Quote: Originally Posted by Dave76 View Post
I can see two concerns,

1. keeping your computer case in a small confined space with no air flow will make things worse, it will just circulate hot air.
...
Still can't see what case it is, can you tell us the brand and model?

2. There are a lot of cables between the HDD cage and the motherboard, try and re-route these cables out of the air flow path, this will help.
Get some cable ties (zip ties) and secure them out of the way.
...
If your Son's computer is not OC'ed and hitting 90C at 100% CPU usage, that indicates a CPU cooler problem.
If it is OC'ed, then I would lower the OC until the heat problem is taken care of.
Ok, I've pulled the system apart again. Reinstalled everything. I now have all the cables tucked neatly out of the way with cable ties. Only the cables going to the graphics card are in the path of the front fan.

I ran several tests over today. These are the results.

Ambient Room temp = 24 degrees celcius.
Side Fan PC Location HS Push Rear Case HS Pull Front Idle Temp Fan 1 Fan 2 Fan 3 Fan4 OFF OUT45142177213801819OFFIN45140389213951854INOUT45140989213951854ININ45140389413921854OUTOUT45136689513951839OUTIN45138986813921844PC consistenly runs 20 - 22 degrees above room temp

----
EDIT: This was a table from Excel.. did't paste properly. What it says is that the temp remained at 45 degrees though out a series of 8 tests of 1 hour each. Fan speeds varied slightly, but otherwise nothing changed.
---

The side fan is 80mm, all others are 120mm. The side fan is noisiest so I wanted to see how temps went without it.

OFF means side fan not connected. OUT means it is pulling air out of the case, and IN means it is pushing it into the case.

Other than slight variation in fan speeds there was absolutely no change in CPU temperature.

I have cleaned and re-applied paste. I've done this now more than half a dozen times in the last few days.

I also raised the case; which is a Coolermaster Elite 330 (http://www.digiconcepts.com/coolermaster_cases_45.htm)

It had raised feet on the bottom which were 8mm of the ground. I've added and extra 20mm to put the case 28mm of the ground.

I tried the system in two locations; completely out of the desk in the open room, and in the PC-cubby hole. Neither made any difference.

Yes, EIST was enabled all along - as soon as I built the system 18 months ago. Bugger about the electricity bills, then.

For no particular reason I took the opportunity to reinstall windows too. I was rebuilding the system from scratch so I figured what the heck. So this is for all intents and purposes a new system

My youngest son's PC is even more pecualiar. His runs at 46 degrees most of the time (in open space), then without him doing anything different, it shoots up to 73 and stays there until we take the side off and point a big pedestal fan at it.

The 90 degree problem was related to Source SDK. He created a map, and when he tried to compile it the system freaked. He sent the map to another person who compiled it without problems. Go figure.

None of the systems are OC'd. The point of this thread initially was to get the temps down by 10 degrees so I could OC them.

It seems that short of running the PC from within my kitchen freezer, I am not going to get the temp down to what lots of people are saying they are running at. It's enough to make you cry

This is the system as it is now...


Attached Thumbnails
Good cooler for I7-920 OC-rewiredpc.jpg  
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12 Jan 2011   #34
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

That is most bizarre.......right now its 25 degrees inside my hose and my CPU is idling at 32.

It must be very frustrating for you, as I cannot see what else you could possible try.

Does anyone else have any other ideas?

Regards,
Golden
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12 Jan 2011   #35
TanyaC

Linux Mint 17 Cinnamon | Win 7 Ult x64
 
 

Frustrating is putting it mildly. It has got me quite distressed.

The kids are compalining too. I've spent so much time on this that dinner has been late a few night in a row

I'm at my wits end. The general opinion is that I should not have such high temps, so I echo Golden's call... Can any one please help me solve this..

Not to be a smarty pants, but I enjoyed reading your post about the temperature of your HOSE... Thanks for brightening my day
thanks
Tanya
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13 Jan 2011   #36
TanyaC

Linux Mint 17 Cinnamon | Win 7 Ult x64
 
 

After spending several more hours reading and talking to people in computer stores it was suggested I play around with voltages

I have only changed CPU VCore, as people claim that lowering this to about 1.10000 from 1.25625v can help.

My computer is like a rebellious adolescent. It does exactly the opposite of what it should..

I lowered it and the idle temp actually increased from 45 to 47 with ambient at 22.

Anyone care to comment?

thanks
Tanya
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13 Jan 2011   #37
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Jeez.....I really don't know. How can something be so stubborn?!?!

I'm not suggesting you try this, but does anyone know what happens if the voltages go the other way?
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13 Jan 2011   #38
TanyaC

Linux Mint 17 Cinnamon | Win 7 Ult x64
 
 

Quote   Quote: Originally Posted by Golden View Post
Jeez.....I really don't know. How can something be so stubborn?!?!

I'm not suggesting you try this, but does anyone know what happens if the voltages go the other way?
From another site...

Increasing the CPU Vcore can help with stability when you are overclocking. It also increases your core temperature and power consumption so don't increase this if you are not having stability issues.

Although, with my luck, it would decrease the temp and make system less stable
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13 Jan 2011   #39
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Pfffttt..........man that is frustrating. I cant remember if you tried this, but if you leave the case open and stick a mains fan on full pointing at it, does it show cooler temps?
My System SpecsSystem Spec
13 Jan 2011   #40
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

When you try Golden's big fan test, it should tell you if it's your system fans problem or the case air flow.

seb mentioned airflow, and fan direction, maybe you should make sure the side fan isn't stopping the air flow.

Other than that, I'm running out of ideas.
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 Good cooler for I7-920 OC




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