TOO HOT Athlon64 3000+ Chaintech Mobo

[FoxHound01]

My Chaintech S1689 (skt 939) has my Athlon64 3000+ in it, and in Speedfan and Hmonitor my CPU is showing up running at 64-65 C, i know that is WAAAAAAAAAY to hot. thats bad, is it my motherboard that might be misreporting? or is something seriously wrong? i have had no problems with CPU stability, no reboots, no problems, i have a 120mm and an 80mm case fans, and the case feels only slightly warm inside. My SMART status on my two hard drives are both between 32-36 C, so i assume thats about how hot my case is. I have the stock AMD heatsink on the CPU, and its not overclocked, help me out please?

-FoxHound01

[bluegreenshxt]

Maybe your heatsink is not making good contact with the CPU. You can try reseating the CPU and the heatsink. Make sure both is flat. You'll need to clean off the old thermal paste and apply new stuff though.

Search around and see if there are temperature misreading problems associated with that motherboard too.

[FoxHound01]

if it makes any difference, in Windows XP idling is when it was reporting 65 C and when i checked in the bios it was showing 41-43 C, I haven't looked at it under any stress yet though.

[yahooadam]

probably a missreport

although 40° is a bit hot just being in the bios :rolleyes:

as said b4, search for temp misreports with that mobo on google

[Avid6eek]

The BIOS temps should be warmer than sitting idle in Windows because there is no system idle process telling the processor to sit still and relax. Your temps are fine. The software that monitors the temps is misreporting. The board temps (BIOS) seem to be reporting fine.

[yahooadam]

as far as i knew the proccesor didnt do very much in the bios

My CPU has allways been read cooler in the bios then in windows

[Avid6eek]

Processors don't sit idle unless they are told to do so. Do a google lookup of "software cooling" and you'll find that people used to run utilities to cool their processor until the idle process was embedded in Windows. The difference between BIOS and Windows idle temps are always within a few degrees of eachother, but Windows in an idle state puts no load on the processor, so there is no reason why your temps would be higher in Windows unless the software utility you are using does report the exact same temps that are in the BIOS.

[stangz]

Another piece of trivia that I would have gotten wrong. Weird but interesting.

[yahooadam]

avid

an infinite source of PC information

shame 95% of people dont care :p otherwise he would be the center of the party

[AKHandyman]

How does software actually measure the temperatures? I thought you had to have a temperature diode or probe to get an accurate reading. Does the software use the same physical reading from the motherboard and just report it in Windows? What type of third party hardware can you get that accuately measures and reports CPU temperatures?

[yahooadam]

as far as i know (this was true in the AXP days)

there is a wire running between 2 pins on the proccesor

as the tempreture changes the resistance does also on this wire

if u then mesure the resistance of this wire u can work out the temp of the proccesor

this is what ive read b4 in the old AXP days, and if true, is prolly still true

[Avid6eek]

Here is an actual picture of a temp diode. Looks to be a Socket A motherboard. I'm not sure how exactly temps are read now.

http://www.hardware-one.com/reviews/ga-7dx/zif-thermaldiode-big1.jpg

[yahooadam]

yeh apparently some had that

but none of the ones ive used have had a temp sensor liek that

[Avid6eek]

I've scene a few of them and they are known for not being very accurate. You can't get a core temperature by touching the bottom resistors/packaging of of the processor. I haven't run into any of these diodes on socket 754/939/940 boards.

[Skorp]

Athlon 64s borrowed the idea of an on-die thermal diode from Intel, according to [H]ard|OCP (http://www.hardocp.com/article.html?art=NTI0) anyway. This is how an Athlon64 will shut itself down if it overheats; something an XP wouldnt do.

[yahooadam]

my Asus motherboard allways had "COP" which would shut down the computer if hte CPU got too hot, dont know about others though

[Zefram]

The most accurate program to read your system temperature is by using your motherboard manufacturer's own programs...........
This is because there are many varieties of Hardware Monitoring chip out there, and manufacturer normally modified them a lot.............
BIOS update is also recommended, some motherboard BIOS misreported the temperatures. My motherboard, MSI K8N Neo for example, have 2 BIOS revision specifically to fix temperature reporting!