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post #31 of 57
Thread Starter 
ok so if i push the vcore to 1.4 or the cpu temp hits 67-68, this is with the cores all still under 56, the system just shuts off and i have to pull the power cord to ge it to boot again.... whats the deal now?
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post #32 of 57
Just because core are not reaching there 62 recomended limite dose not mean they will be stable .
What speed are you at on core
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post #33 of 57
Quote:
Originally Posted by mattlb0619 View Post

ok so if i push the vcore to 1.4 or the cpu temp hits 67-68, this is with the cores all still under 56, the system just shuts off and i have to pull the power cord to ge it to boot again.... whats the deal now?

Well i told you 61 is to high.

Cpu temp is the total / socket.
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post #34 of 57
just for reference, from AMD Forums....
Quote:
AMD Temp Information and Guide

We've had a few great threads recently where members contacted AMD and asked what temps they should be looking at, what the max temp was on, and what programs should be used and why. But this information is still scattered and not well defined in one place. It also doesn't quite explain when you should be looking at certain temps. Well I've made it my mission to insure that people are reading the right temps and have been trying my best to give all the information each time I respond without sounding like a broken record. So I decided to write this information thread and little guide to help you out there.

What is "Core Temp" ?

"Core Temp" is what AMD refers to as "TCTL" and is a non-physical temperature on an arbitrary scale measured in degrees. It does not represent an actual physical temperature like die or case temperature.

What is "CPU Temp" ?

"CPU Temp" is read by a sensor in the socket of the motherboard.
It is a physical temperature and therefore will be effected by ambient temps inside the case.

Why should I use "Core Temp" and when?

AMD designed this equation to accurately read peak (45C+) and load temps. It has an equational offset to determine said temps which equalizes at 45C. Since it's designed for peak temps and is a non-physical temperature it cannot read idle temps or account for ambient temps correctly.

So what is "CPU Temp" good for then?

At peak temps this value is typically 7-10C higher (depending on motherboard) than the actual temp due to it being a physical sensor. At idle it's a little more accurate, but still not dead on, and besides idle temps do not matter near as much as load temps do.

AMD says my chip has a [INSERT SPEC] Celsius limit, what value is this referring to? This limit seems kind of low, why?

This is referring to "Core Temp" of course.

So for example Phenom IIs have a recommended 62C "Core Temp" limit while not exceeding 60C for extended periods.

It has long been argued that the recommended limit is merely a larger safety net. There is a thermal shutdown in the chip at 90C and the silicone is rated for 97C+, so it seems plausable that we could indeed go higher, but this guide (and most in general) will simply *nod* and point you to the recommended limit for your chip.

What programs read "Core Temp" ?

AMD recommends the Core Temp program and AMD Overdrive for this reason.

The core section of HWMonitor also reads this value, but be careful as it also shows CPU Temp.

Where are you getting this information?

Aside from the great information threads below, I am a Mechanical & Computer Design Engineer who has several colleagues that either currently work in AMD's engineering department or used to.

Source: OCN Thread #931241
- Information from Alex Cromwell, Senior Technology Director, AMD

Source: OCN Thread #1095360
- Information from AMD Global Customer Care

Edited by magicrat - 3/31/12 at 7:17am
post #35 of 57
Thread Starter 
Quote:
Originally Posted by motokill36 View Post

Just because core are not reaching there 62 recomended limite dose not mean they will be stable .
What speed are you at on core

thats with the multi still at 20x
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post #36 of 57
I still have a lot to learn about this board but one thing that I have surely discovered is that the hotter your vcore gets the hotter your cpu will get. If you can cool down your vcore your CPU temps will drop as well. There are 2 very effective ways to cool down the vcore on this motherboard. You can use a 80mm or smaller high pressure fan and aim it at the mid top of the VRM heatsink or you can aim it at the back of the board between the cpu socket and the black bar that support the vcore heatsink.

The drop in temperature is amazing!

This is a screen shot that I saved showing first without the fan and then turning the fan on then turning it off again, this was air cooled was behind the motherboard. After that I you will see a picture of the way the fan is located now which is on top. Because I never got around to cutting holes in my back panel and because I water cooled the system. Even with water cooling this fan causes a dramatic drop in vrm and a noticable drop in core temps.

Blue is VCORE1 and Yellow is CPU I did this because my VRM could eventually hit 60c without it!

The graph shows a 10c drop in VRM temp with a tiny lil fan. The biger the fan the lesser effect you will get as you are looking for pressure on a small area. Do not go over 80MM. I am going to cut a hole in the side of my case and use a 80MM with this black tube aimed right at the VRM

temps.jpg

00002468.jpg
Edited by givmedew - 4/2/12 at 1:09pm
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post #37 of 57
Thread Starter 
450

338

337

ok so these dont OC for anything or mine is defective...

i removed the 7v reducer on the rear exhaust, its just plugged into the board now. ive also ramped up the rmps at lower temps(40c) for the cpu in the bios.

ps: the cougar fans hate filters.
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post #38 of 57
Bulldozer just runs hot man. Your mainly running into a cooling limitation.
And 1.3v for 4.3ghz is actually decent. Im at 1.4v 4.4ghz and working on going higher.
post #39 of 57
Also Try turning all your fans into into intake except your rear fan and remove your pci shields on the back of the case.
post #40 of 57
Quote:
Originally Posted by konspiracy View Post

Also Try turning all your fans into into intake except your rear fan and remove your pci shields on the back of the case.

I think he means IO shield the plate that is around the usb, sata, sound ports. This makes a huge difference since normally the heat from the VRMs just pocket right there. I left mine on because of the fan I use but when I had my m5 board I did that.

Good recommendation Konspiracy

Also one other thing you can do is to get a tube that runs from the rear fan to the heatsink fan and then make sure they are all running the same direction. This will either make it so that you are pumping in straight cold air from outside the case (works best) or pumping the hot heatsink air right out of the case (helps the mosfets which in turn helps the cpu).

http://www.sidewindercomputers.com/th12fandubl.html

202


Also I wanted to show you this. It is hideous and ugly and I would never do this LOL but I did use black construction paper to do the same thing on my brothers 212+ it will raise the air pressure and cool more effectively. Someone on this forum used Jewel cases cut to fit and that looked amazing! There is a more expensive cooler that uses a similar design to the 212 that is sealed. Also my Ultra Chiltech was sealed with side panels as well!

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