Microstar MS-6547 (v1.X) ATX Mainboard G52-MA00514 - Manual (Page 61)

BIOS Setup
3-27
cause even a slight jitter can introduce a temporary boost in clockspeed which
may just cause your overclocked processor to lock up.
CPU Host/SDRAM/PCI Clock
This setting controls the clock speed of the CPU Host (FSB)/SDRAM memory
bus/PCI bus on the motherboard.
Kap3_6547v1.1.P65 05.02.02, 09:34 27