Brother Esau Posted January 24, 2007 Posted January 24, 2007 Well I guess I know why that I can't get past 2980mhz usually running 2980mhz dual Prime95 ITE reports temps at 54C @ 1.53 vcore under full load. Now I am testing 2800mhz with orthos and ITE gives me 40c full load @1.400 vcore and Core Temp reads 49c and 51c Whoa.... thats a pretty dramatic difference I would say! Share this post Link to post Share on other sites More sharing options...
granulf Posted January 24, 2007 Posted January 24, 2007 My experience with both of my x2 3800+'s, is that you have to pop the IHS to bring the core temp down. My core temp with swiftech storm and a triple radiator went up to 60c when running at 2.8 ghz and 1.525V. After removing IHS it is now down to about 35-40c. I have two x2 3800+ and I have same experience with both of them. Share this post Link to post Share on other sites More sharing options...
Angry_Games Posted January 24, 2007 Posted January 24, 2007 pay attention to CoreTemp, not ITE (notoriously weak at reporting accurately) Share this post Link to post Share on other sites More sharing options...
Raphie Posted January 24, 2007 Posted January 24, 2007 i thought both use the same chip readout routine? Share this post Link to post Share on other sites More sharing options...
ReelFiles Posted January 24, 2007 Posted January 24, 2007 CoreTemp reads the actual cores' temperature from integrated registers inside the core itself, while ITE reads the CPU socket's sensor. I usually find that CoreTemp reports ca 8C-10C higher than software that reads from ITE, under 100% load. Share this post Link to post Share on other sites More sharing options...
DragonFlight Posted January 24, 2007 Posted January 24, 2007 My ITE shows 39C at full load while coretemp shows 66C !!!! In idle , ITE shows 24C and CoreTemp 32C !!! Also, CoreTemp can get from 32C to 55C in just 1 or 2 seconds!!! How do you explain this? Share this post Link to post Share on other sites More sharing options...
ReelFiles Posted January 24, 2007 Posted January 24, 2007 Because the core heats up faster than the socket diode. Share this post Link to post Share on other sites More sharing options...
red930 Posted January 25, 2007 Posted January 25, 2007 I get mbm5 reading at 31C idle,Everest Ultimate 3.50 reads at CPU #1 32,CPU #2 38C I think Everest reads the same thing as Core Temp Which one do I trust? Share this post Link to post Share on other sites More sharing options...
RAINMAKA Posted January 25, 2007 Posted January 25, 2007 Ive only used MBM perhaps I should look into another program tell temperatures. Share this post Link to post Share on other sites More sharing options...
soundx98 Posted January 25, 2007 Posted January 25, 2007 core temps are read off the DTS (Digital Thermal Sensor) embedded in the core(s). NextSensor, CoreTemp, Everest Ultimate 3.50, A674Info, Speedfan 1.40 polls the core/DTS at 1 sec intervals cpu temps are read off the Thermal Diode (What we have been using for years). MBM5, SG, NextSensor, Everest, Speedfan. polls the diode at 5-10 seconds They ARE two DIFFERENT sensors in two DIFFERENT locations. Very often idle temps will be the same for all programs. Really doesn't matter what program you are using as long as we know which one it is. Apples to apples comparison is what we are looking for. Not all programs will run correctly on all boards. Programs often misidentify or mislabel the sensors. It's all software so you can't trust any of them 100% Neither the DTS or Thermal Diode are "calibrated" at the the factory. Share this post Link to post Share on other sites More sharing options...
grog Posted January 25, 2007 Posted January 25, 2007 While SMARTGUARDIAN does appear low when compared to "Core Temp" I still do not trust the results enough to say which is wrong. "Core Temp" really depends on the DTS being calibrated correctly from the factory. AMD does not guaranty the DTS value and that is one reason we do not see it's use widespread. I also think there are some programming issues beyond this. Linux 2.6.19 has also introduced the same method for getting the temps on K8 based processors. The k8temp.c file allows lm_sensors to use the same processor specific method to get the temperature readings. When you compare the "how it works" section for "Core Temp" with the k8temp release information it is the same method. Keep in mind that the "new method" is using a different part of the core(s) for the source of the measurement. We will thus see a some variance due to the location of the internal probes. Core Temp - How it Works http://www.thecoolest.zerobrains.com/CoreT...howitworks.html Compare Linux k8temp doc http://www.linuxhq.com/kernel/v2.6/19/Docu...on/hwmon/k8temp CoreTemp k8temp SMARTGUARDIAN -------- ------ ------------- Idle 35C/31C 22C/30C 26C Load 43C/40C 40C/45C 32C Don't get me wrong... I like CoreTemp and k8temp too I just don't trust what it is doing. All of the tests were done on the same system. The idle temperature difference on core 0 between CoreTemp and k8temp is 13 degrees celsius. This seems a bit high since the idle temperature difference on core 0 is only 1 degree! At Idle I am also seeing 28.7 at the waterblock with an external sensors. Anyway you look at it my temps are good but I can not tell you what they are at the core for sure. MCE2005 IDLE SMARTGUARDIAN: 26C Core Temp Beta 0.94: 35C/31C MCE2005 LOAD SMARTGUARDIAN: 32C Core Temp Beta 0.94: 43C/40C Linux IDLE k8temp: 22C/30C Linux LOAD k8temp: 40C/45C Direct link to images http://img169.imageshack.us/img169/7885/tempidlexh7.jpg http://img364.imageshack.us/img364/1607/temploadpe1.jpg http://img364.imageshack.us/img364/355/screenshot1td9.png http://img394.imageshack.us/img394/1262/screenshot3zr1.png My System * Monitor: Dell UltraSharp 2405FPW 24" LCD * Motherboard: DFI Lanparty UT CFX3200-DR Socket 939 ATI CrossFire Radeon Xpress 3200 - BIOS 07/28/2006 * CPU: AMD Athlon 64 X2 4400+ 1GHz FSB Socket 939 Dual Core * Memory: CORSAIR XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200) TWINX2048-3200C2PRO * Video: ATI All-in-Wonder X1800 XL 256MB PCI Express * ATI HDTV Wonder Remote Control Edition PCI TV Tuner * Sound: Creative Sound Blaster X-Fi Elite Pro Sound Card * Sound: Realtek ALC882 8-channel HD Audio * Ethernet: Dual Gigabit LAN - Marvell 88E8052 and Marvell 88E8053 * Hard Disk-1&2: Seagate Barracuda 7200.9 ST3300622AS 300GB 7200 RPM SATA 3.0Gb/s x 2 (total 600GB) RAID-0 * Hard Disk-3&4: Seagate Barracuda 7200.10 ST3320620AS 320GB 7200 RPM SATA 3.0Gb/s x 2 (total 640GB) RAID-0 * Hard Disk-5: Seagate Barracuda 7200.9 ST3160812A 160GB 7200 RPM IDE Ultra ATA100 * DVD-R/RW: SONY White IDE DVD Burner Model DRU810A * DVD-R/RW: SONY Silver USB 2.0/i.LINK External DVD Burner Model DRX810UL * CASE: Thermaltake Tai-Chi VB5001SNA Black/ Silver Computer Case with liquid cooling * Thermaltake A2309 iCage 5.25" bay (2 units) * LCD-TEMP: AeroCool GateWatch-SV Silver GateWatch with LCD display * PSU: PC Power & Cooling 510 SLI-PFC 510W * UPS: APC Back-UPS XS 1000 UPS, 1000 VA, 600 Watts * OS: Microsoft Windows XP Media Center 2005 Rollup 2 * OS: Fedora Core 6 - x86_64 * Speakers: Klipsch ProMedia Ultra 5.1 Share this post Link to post Share on other sites More sharing options...
ReelFiles Posted January 25, 2007 Posted January 25, 2007 I don't know what to tell ya, if you don't trust any way of measuring CPU temps. Try a rectal thermometer, I hear they are the most accurate Share this post Link to post Share on other sites More sharing options...
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