JBags Posted May 8, 2010 Posted May 8, 2010 Yeah it seems the sensors have some offset around room temp. I was playing with a 45W AMD CPU a few days ago and, once undervolted, its load temperature was reported at 19oC using a Cooler Master V8 at full speed, when the room temperature was 20oC! Obviously that is not accurate. I have to agree. I've noticed this with both my x3 720 which usually idles around 19-24C at room temp (70F->21C). I did notice that my BIOS reported temps around 30-34C, so I just set CoreTemp's offset to 10C. I also noticed this with my sister's Athlon X2 7750, was reporting 19C at idle, havent bothered to set an offset though, she only uses that thing for internet, email, etc. so no need to monitor temps really. Share this post Link to post Share on other sites More sharing options...
joel.monteiro Posted May 8, 2010 Posted May 8, 2010 (edited) amd 955 into in 95w version ,more oc headroom, it should be in this list soon. Edited May 8, 2010 by joel.monteiro Share this post Link to post Share on other sites More sharing options...
Drdeath Posted May 8, 2010 Posted May 8, 2010 Ok, my rooms is a lot hotter today cause the temp has been increasing around here lately. This is after running OCCT for 5m. This seems a bit more accurate. Your screen shot doesn't help. You need to post the voltages so we can see if it is somewhat accurate. At stock voltage that should be close to normal. Share this post Link to post Share on other sites More sharing options...
Vackenfeldt Posted May 8, 2010 Posted May 8, 2010 Yeah it seems the sensors have some offset around room temp. I was playing with a 45W AMD CPU a few days ago and, once undervolted, its load temperature was reported at 19oC using a Cooler Master V8 at full speed, when the room temperature was 20oC! Obviously that is not accurate. It is possible to have a CPU under room temperature with air cooling. If air moves fast, it is also cooler. Lets say you are out on a warm summer day and it windy as hell. If the air temperature is 30 degrees, then the wind can be alot cooler than that. Or if you are driving a car and the windows are open, it will be cooler than the air temperature that day thanks to the air moving quite fast. So, it is possible for the CPU to be cooler than the ambient temperature, but at load that is really hard to accomplish. Share this post Link to post Share on other sites More sharing options...
ccokeman Posted May 8, 2010 Posted May 8, 2010 AMD temps have always been so much sexier than Intel Still I'm impressed with the new six core staying under 50C on load! I have a spare MSI 790FX-GD70, that I was hanging on to in anticipation on the AMD Hexacore's. Seems like everything I read about them is very posittive, and now tempting...... Really ! The temps on the A64 dual cores were nothing short of steamy when compared to my Intel 3.2 C Share this post Link to post Share on other sites More sharing options...
Drdeath Posted May 8, 2010 Posted May 8, 2010 (edited) It is possible to have a CPU under room temperature with air cooling. If air moves fast, it is also cooler. Lets say you are out on a warm summer day and it windy as hell. If the air temperature is 30 degrees, then the wind can be alot cooler than that. Or if you are driving a car and the windows are open, it will be cooler than the air temperature that day thanks to the air moving quite fast. So, it is possible for the CPU to be cooler than the ambient temperature, but at load that is really hard to accomplish. Just cause the air moves faster does not change the temperature of the air. I go not think its is not possible to have the CPU under ambient temps with air or water. Water fot instance, is being cooled by the air flowing through the radiator. If the air is lets day 30 degrees celcius in both cases, there is no way of cooling either way under 30 degrees. Edited May 8, 2010 by Drdeath Share this post Link to post Share on other sites More sharing options...
Drdeath Posted May 8, 2010 Posted May 8, 2010 (edited) Really ! The temps on the A64 dual cores were nothing short of steamy when compared to my Intel 3.2 C AMD's Phenom's TDP has always been lower than Intel. Although the y run much cooler the max temps are much lower. Edited May 8, 2010 by Drdeath Share this post Link to post Share on other sites More sharing options...
The Smith Posted May 8, 2010 Posted May 8, 2010 (edited) It is possible to have a CPU under room temperature with air cooling. If air moves fast, it is also cooler. Lets say you are out on a warm summer day and it windy as hell. If the air temperature is 30 degrees, then the wind can be alot cooler than that. Or if you are driving a car and the windows are open, it will be cooler than the air temperature that day thanks to the air moving quite fast. So, it is possible for the CPU to be cooler than the ambient temperature, but at load that is really hard to accomplish. No. Cooling is merely a transfer of heat from the hottest point to the coolest point. If the air was hotter than your CPU, you would actually be heating it with your heatsink. When you're in the wind, air appears cooler because the movement of it accelerates the heat transfer since there is continuously some new air coming to replace the one heated by your body, since the speed at which the heat is transferred is proportional to the difference in temperature. What you're basically saying it that by putting some water in a ziplock bag and attaching it behind your car on the highway will make it freeze. Nonsense. Crazy_Nate can confirm all of this to you; he has taken thermodynamics courses at university. Just cause the air moves faster does not change the temperature of the air. I go not think its is not possible to have the CPU under ambient temps with air or water. Water fot instance, is being cooled by the air flowing through the radiator. If the air is lets day 30 degrees celcius in both cases, there is no way of cooling either way under 30 degrees. Exactly. Edited May 8, 2010 by The Smith Share this post Link to post Share on other sites More sharing options...
Drdeath Posted May 8, 2010 Posted May 8, 2010 (edited) What you're basically saying it that by putting some water in a ziplock bag and attaching it behind your car on the highway will make it freeze. Nonsense. Exactly. I choked on my cookie on that one! :lol2: :lol2: Windchill! Edited May 8, 2010 by Drdeath Share this post Link to post Share on other sites More sharing options...
Speedway Posted May 9, 2010 Posted May 9, 2010 Really ! The temps on the A64 dual cores were nothing short of steamy when compared to my Intel 3.2 C Yea, sorry, I was really speaking of post P4/64 FX days, should have specified! The multi-core temps on the AMD's was what I was saying being more specific! Also, Dr.D hit the nail on the head with the ceiling temps on the AMD's have always been much lower than Intel, even though the AMD temps are lower! Share this post Link to post Share on other sites More sharing options...
Drdeath Posted May 9, 2010 Posted May 9, 2010 Yea, sorry, I was really speaking of post P4/64 FX days, should have specified! The multi-core temps on the AMD's was what I was saying being more specific! Also, Dr.D hit the nail on the head with the ceiling temps on the AMD's have always been much lower than Intel, even though the AMD temps are lower! Ya I own both Core i7 930 and AMD Phenom II 965. I owned 4 Phenom's amd made the jump to Intel. Share this post Link to post Share on other sites More sharing options...
FUZi0N Posted May 9, 2010 Posted May 9, 2010 Ok, ran OCCT again for 5 min with my room actually cool. Assuming there is a 10c offset 27c idle/53c load seems like my Xigmatek is cooling quite well. I took a pic of cpu-z and occt as well too show you voltages etc. Input? Share this post Link to post Share on other sites More sharing options...
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