Hi.
Technical (newbie) question.
Gigabyte GA-Z77X-UD5H
SYS_FAN1 says pin1 = GND and pin2 = 12V.
I only measure 7.72 V, resulting in a fan (3 pins) speed of 550 RPM i.s.o. #1000 RPM.
The BIOS doesn't show any settings to be modified in order to change voltage on SYS_FAN1.
Here the manual:
http://download.gigabyte.eu/FileList/Manual/mb_manual_g...
Page 27 says that pin2 is "+12V/Speed Control", but I don't see any possibility to change the speed (neither in BIOS, nor manual).
Is this motherboard hardware problem or do I miss something?
Thanks,