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Strange Core Temps - X2-3800


New Member
Jul 18, 2007
809 (0.21/day)
Almonte, Canada
System Name Sonny Boy
Processor Q9550 3.8GHz 450X8.5 @ 1.3 Vcore
Motherboard ASUS P5Q-PRO
Cooling OCZ Vendetta 2 - lapped and MX2
Memory 2 X 2GB OCZ Reaper PC2-8500 1080MHz 5-5-5-15-2T 2.1V
Video Card(s) 5870 Eyefinity + GT 240 Physx
Storage WD Caviar Black 640
Display(s) 3X AOC 23" 1920X1080 = 5760X1080
Case HAF922 - 3X 200mm fans
Audio Device(s) Onboard - whatever
Power Supply Ultra LSP 750W
Software Windows 7 Professional 64 bit
I have two X2-3800's. One is a Manchester Core on an Asus A8N-E motherboard and the other is a Toledo Core on an ECS KA1-MVP motherboard. I am trying to determine why the readings for the core temperatures seems to be so whacked out. I am using Everest and Coretemp programs to monitor the temps and this is what I get.

I can't figure out why Coretemp is telling me that the core is actually cooler than the CPU temp on the Toledo but is the other way around on the Manchester. It seems to me that the coretemp is measured on the silicon die itself. Where does the CPU temp come from? Does the motherboard take the core temp and calculate what the case temperature should be? AMD specifies maximum temps as a case temperature but doesn't seem to say what the corresponding core temperature would be.

If someone could look at the attached screenshots and help me solve the mystery it would be appreciated. I just want to make sure I amnot cooking something. Both computers are 100% Prime95 stable.



Nov 20, 2006
18,526 (4.59/day)
System Name Starlifter :: Dragonfly
Processor i5 2400 :: Athlon II x4 630
Motherboard MSI H67-G43-B3 :: GIgabyte GA-770T-USB3
Cooling Corsair H70 :: Thermaltake Big Typhoon
Memory 4x2GB DDR3 1333 :: 2x1GB DDR3 1333
Video Card(s) 2x PNY GTX1070 :: GT720
Storage Plextor M5s 128GB, WDC Black 500GB :: Mushkin Enhanced 60GB SSD, WD RE3 1TB
Display(s) Acer P216HL HDMI :: None
Case Antec SOHO 1030B :: Old White Full Tower
Audio Device(s) X-Fi Titanium Fatal1ty Pro - iLive IT153B Soundbar (optical) :: None
Power Supply Corsair CX600w :: Unknown
Software Windows 10 Pro - Plex Server on Dragonfly
Benchmark Scores >9000
Looks like the temp for the core and the CPU temp are mixed up. Look at CPU temp for the core and core temp for the CPU temp apparantly