I just built a system with the GA-F2A88XM-HD3 REV 3.0 (BIOS: F5) for a friend of mine and installed Windows 8.1 (completely updated). With the BIOS-option "Fast Boot" set to "Ultra Fast Boot", I'm experiencing problems after waking from sleep. After waking up, the CPU-fan runs only at about 1100 RPM and doesn't go faster, even when load is produced. Furthermore, EasyTune shows the CPU temperature at 100 degrees Celsius. However, this value doesn't change at all, so I must assume the 100C is only a dummy value.
I'm particularly concerned about the 1100 RPM (I can barely hear the fan, and the value changes a bit from time to time like it normally does, so I think this reading is accurate). 1100 RPM is just enough for an idle system, but with load produced, the system will overheat.
Steps to reproduce:
1) Enter the BIOS after booting.
2) Select "Load Optimized Defaults" (So, the only non-default option will be step 3).
3) Set the "Fast Boot"-mode to "Ultra Fast Boot"-mode (*).
4) Save and exit. Windows will start.
5) On the Windows lock screen, click on the power button-icon and select reboot (**). After rebooting, Windows will start again.
6) On the Windows lock screen, click on the power button-icon and select sleep (***).
7) Wake up from sleep and you'll see that the CPU-fan is only at 1100 RPM and the CPU-temperature says 100C.
(*) The problem doesn't occur after setting the "Fast Boot" mode to "Enabled". After enabling "Ultra Fast Sleep", the only way to re-enter the BIOS-configuration is via Windows.
(**) The problem only occurs with a sleep after a reboot. However, once the problem has occurred, every sleep causes a bad wake-up, until the BIOS is reset.
(***) The sleep-mode used is hybrid sleep, but Windows just calls it "sleep".
Used system:
GA-F2A88XM-HD3 REV 3.0 BIOS: F5
AMD A8-5600K
Kingston HyperX FURY 8 GB 1866 MHz
Be quiet! System Power 7 350W
Crucial M500 240 GB
Samsung SH-224DB
Questions:
a) Is this a known problem / can someone reproduce this problem?
b) If so, will there be a BIOS-upgrade?
Thanks for your attention!