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two of my cores are 12c hotter than the other two! is that even possible?

post #1 of 2
Thread Starter 
Hi guys,
I have an old qx6700 that I've been running at stock. Now I know that the QX6700 it is a very early quad core processor that is simply two dual core cpus (6700's I think) on the same die. the problem I'm having is that when running prime95 on each of my four cores my temps on the first two cores, cpu0 and cpu1 (~77-79c), are always WAY higher than cpu2 and cpu3 (63-64c). I read that these processors should be kept at 65c or below. Is it possible that one of my dual core cpu's simply runs really hot?

I've done numerous reseats of my heatsink and the same two cores, cpu0 and cpu1, are always about 12c higher on load. Speedfan and HWmonitor show the same thing. The only thing I could think of is something with my heatsink surface since I have been mounting it in the same orientation every time. anyone with experience with this problem and what was the solution? I'm pretty open to all ideas. My heatsink is a CoolerMaster tx3 btw-
pretty much the 212's 92mm little brother.
post #2 of 2
Well if you reseated multiple times there is really nothing you can do. There is always a temperature difference between cores. 12C is higher than usual but not surprising since like you mention, it basically is just two core 2 duos slapped together. Each set of 2 probably is going to have bigger discrepancy while on newer chips like Sandy Bridge or Ivy Bridge I think the die is made differently giving less difference between individual cores.
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FreeNAS
(9 items)
 
Beast
(14 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
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