I experience system freezes under high load (some games after 10-30min, or prime95 after 0-3min).
Mainboard: Gigabyte GA-990FXA-UD3
CPU: AMD FX-8320
(CPU Cooler: Scythe Mugen 2)
PSU: OCZ Fatal1ty 550W (2nd edition)
GPU: Gigabyte Radeon HD 7870 2GB
Memory: 2 x 4GB GeIL EVO POTENZA
HDDS: WD2TB, Samsung 830 (128GB), Samsung 840 (256GB)
OS: Win 8.1
Running hwmonitor I checked the temperature until a freeze occured, showing no problem. The CPU stayed at around "40°C", with a max of "41°C"; GPU at around 30°C. Vcore with turbo around "1,4250", without "1,325".
* Freeze occurs OS independent (using prime95)
* Every system component changed (new PSU, different memory, exchanged Motherboard, other GPU)
* Disabled TurboMode (i first thought that did it, but still freezes)
* tried lowering vcore to 1,3 (from 1,325 default)
AMD OverDrive showed expected vcore under 100% load