TLDR: CPU temperature show 94℃ in BIOS and AI Suit 3, but below 40℃ in Core Temp and HWMonitor. I've upgraded/downgraded BIOS and reinstall CMOS battery to clean.
Motherboard model: Rampage V Extreme (X99) U3.1
UEFI Version: 1401 and 1502
CPU: i7 5930k
Memory kit part number (s) and amount in GB: Corsair Vengeance LPX 32GB (4 x 8GB) DDR4 DRAM 2666MHz C15
GPU: EVGA 980Ti SC * 2 SLI
SSD/HDDs/Optical drives: Kingston Digital HyperX Predator 240 GB PCIe
PSU: Corsair AX1200i
USB Devices (model/version number): Thinkpad keyboard with trackpoint
Monitor: EIZO EV 3237
CPU Cooler: CoolMaster 280L
PC CASE: InWin 909
Operating system: Microsoft Windows 7 Activated yes
Drivers Installed (include version): ASUS Dual Intelligent Processors 5 and latest driver from auto upgrading.
Any third Party temp/voltage software installed: CoreTemp HDMonitor
System Overclocked (provide details)? No, default settings in BIOS
Issues:
I've just received my ASUS X99 Rampage V Extreme and I'm happy to install it in my new PC. But after constructed, it always show "CPU Over Temperature Error" while booting.
At first, it seems a cooler issue which I change the liquid cooler (CoolMaster 280L) into wind cooler. But the error still pop up. And every time the temperature is either 84℃ or 94℃ in bios. I install the windows7 and tools from ASUS, it also show 94℃ in windows7. Then I reinstall the CPU, add more/less thermal silicone, this error is same. The most stranger thing is that the bios will show 94℃ even after cold boot which I can touch the top of CPU and know it's cooler and no way to 94℃.
At last, I install HWMonitor from
http://www.cpuid.com/softwares/hwmonitor.html and cputemp from
http://alcpu.com/CoreTemp/ which show the temperature reading from CPU is below 40℃, but the tools and bios will show 94℃ which read from temperature sensor in motherboard instead.
I want to know whether it's caused by BIOS or temperature sensor. It seems BIOS is reading the tj.max maybe.