ddr3Ddr3 1600mhz 4gb ram configuration
ddr3Ddr3 1600mhz 4gb ram configuration
Obtain your motherboard guide, locate the Clear CMOS switch (possibly marked CLRTC), modify it slightly (a screwdriver suffices as long as it stays on the correct pins), then activate your power switch. Your BIOS will be reinitialized and won’t attempt to run RAM at 3200 MT/s anymore.
The motherboard you're looking for is an F2A55-M LK2 Plus model.
Yes, your PSU should be powered on to ensure proper operation and stability of your system.