View Full Version : OC'ed athlonX2 at only 18.5°C!!
WhiteFireDragon
01-10-2008, 12:52 AM
i have an athlonX2 BE-2300 (http://www.amdcompare.com/us-en/desktop/details.aspx?opn=ADH2300IAA5DD) and it's slightly OC'ed from stock 1.9ghz to 2.02ghz by increasing the core speed from 200mhz to 213mhz with stock multiplier and vcore. this line of X2 is designed with a low power consumption using only 45W. AMD is generally cooler and especially this one with low power consumption, temperatures are expected to be low. it's cooled an OK heatsink/fan, a cooler master hyper TX2 (http://www.newegg.com/Product/Product.aspx?Item=N82E16835103031) fan.
BUT, can a temp of only 18.5°C really be true? that is less than ambient room temps! i think the sensors are way off?
http://img.photobucket.com/albums/v288/WhiteFireDragon/temp.jpg
Movieman
01-10-2008, 12:58 AM
Can't be less than room temp with air or water cooling unless something is used to chill the air or water..
Something is off in the app unless your in a REAL cold room!:)
Sensors are probably about 14℃ off I'd say.
WhiteFireDragon
01-10-2008, 01:28 AM
yeah my room is about 70°F, or 21°C. i didn't think there was any way CPU temps can be lower than. how does PCwizard measure temperatures? reads the temps from the mobo sensors?
Cooper
01-10-2008, 01:33 AM
Try sisoft sandra or lavalys everest
Apokalipse
01-10-2008, 02:24 AM
I believe most temperature monitoring programs will take temperature off the motherboard sensor. And usually, they aren't very accurate.
Core Temp (http://www.alcpu.com/CoreTemp/) takes the temperatures from sensors inside the CPU cores, which are in the majority of cases much more accurate.
I'm not sure what other temperature monitoring programs do that also.
The Coolest
01-10-2008, 03:13 AM
Brisbane chips give wrong readings from it's internal digital thermal sensor.
Spectrobozo
01-10-2008, 03:16 AM
core temp give me 14º for core 0 and 5º for core 1, and the ambient temp room is 27º or more, everest give more aceptable values 35° for the 2 cores, running at 900mhz @ 0.8v with the coolerbox.
I'm saying 35/36℃ idle because I have the same CPU you have there and at stock with ambient 22℃ it was idling 33℃, which is about right for a 45W TDP chip. It's the same problem with Intel's lineup chips, too many are reporting odd temperatures way too many times with bad air coolers, many times ambient/sub-ambient which is impossible. Even your Super I/O chip because it's an IC needing power will be running at least 8℃ above ambient case and a CPU is even hotter because of its power demand, so it will idle hotter than +10℃ ambient on air in usual conditions, even water will not change that unless it's chilled and well insulated with low ambients.
Manicdan
01-10-2008, 06:11 AM
from what ive seen its that brisbane is just off by a simple amount, and i wonder if anyone has every been able to prove the exact amount or if its different per cpu. either why motherboards cant read the internal temp right is annoying, epically since its been a while
GIZER
01-10-2008, 12:29 PM
one day we'll get that low on air, LOL
binormalkilla
01-10-2008, 12:59 PM
I just built a buddy's system that has an AM2 500+ Black Edition and it reads inaccurately on Everest, CoreTemp, speedfan......I've read that some of the AMDs have faulty core diodes. However, his IHS diode seemed to work, and this shows up in Everest as just CPU, so you can go by that and add 5-10C.
If you're running water or phase then add more because the IHS gets cooled insanely fast compared to the actual cores.....all that cheap nasty TIM between the cores and the IHS.
WhiteFireDragon
01-10-2008, 09:04 PM
here are a few other programs that i took the temp with:
- CoreTemp- 7°C
- SpeedFan- 22°C
- SiSoft Sandra- 18.5°C
http://img.photobucket.com/albums/v288/WhiteFireDragon/coretemp.jpg
http://img.photobucket.com/albums/v288/WhiteFireDragon/speedfan.jpg
http://img.photobucket.com/albums/v288/WhiteFireDragon/test.jpg
so i think no matter what program i use, it will be wrong. there's nothing i can do about it because it's the internal sensors. its is really annoying because i really won't know when my CPU overheats
I'm saying 35/36℃ idle because I have the same CPU you have there and at stock with ambient 22℃ it was idling 33℃, which is about right for a 45W TDP chip. It's the same problem with Intel's lineup chips, too many are reporting odd temperatures way too many times with bad air coolers, many times ambient/sub-ambient which is impossible. Even your Super I/O chip because it's an IC needing power will be running at least 8℃ above ambient case and a CPU is even hotter because of its power demand, so it will idle hotter than +10℃ ambient on air in usual conditions, even water will not change that unless it's chilled and well insulated with low ambients.
wait so you're saying you have the same exact CPU but it internal thermal sensors are correct? then is mine just a faulty CPU? how did you find out that 33C was the idle if you have the same CPU?
I just built a buddy's system that has an AM2 500+ Black Edition and it reads inaccurately on Everest, CoreTemp, speedfan......I've read that some of the AMDs have faulty core diodes. However, his IHS diode seemed to work, and this shows up in Everest as just CPU, so you can go by that and add 5-10C.
If you're running water or phase then add more because the IHS gets cooled insanely fast compared to the actual cores.....all that cheap nasty TIM between the cores and the IHS.
IHS means internal heat sensor that thats inside the CPU and not the mobo sensor right?
Spectrobozo
01-11-2008, 09:45 AM
I think the real cpu temperature is "processador" and aux (or they are mobo sensors!?), the cpu core 1 and 2 (nucleo) are wrong...
in core temp I get the temps of "nucleo 1 and 2"
http://img245.imageshack.us/img245/5963/temperky8.jpg
i think the HD reading is wrong to...
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