I am unable to operate an i7 4790 (non K) at 4ghz on a Gigabyte Z97x Gaming 3 motherboard.
I am unable to operate an i7 4790 (non K) at 4ghz on a Gigabyte Z97x Gaming 3 motherboard.
I enter the BIOS, turn off turbo boost, set the multiplier to 40. However, the CPU only reaches 3.8 ghz.
You might think 4 ghz is suitable for just two cores, but the highest frequency across all four cores is still 3.8 ghz.
Before this, I had a budget MSI H81 motherboard where all four cores operated at 4 ghz after adjusting the multiplier from BIOS.
It seems a budget MSI H81 could handle all four cores at 4 ghz, whereas a Gigabyte Z97 couldn't.
I'm using an F7 BIOS version.
https://www.gigabyte.com/ro/Motherboard/...rt-dl-bios
You cannot change the multiplier on that CPU since it's locked. (The non-K model is also locked and can't be overclocked.) The only options are to tweak the base clock, though this may cause stability problems with other components like RAM and HDD. To actually adjust the multiplier and overclock, you need a CPU that supports overclocking (Intel K and X series on desktops) and a Z or X series motherboard (depending on the CPU type).
You cannot change the multiplier on that CPU since it's locked. (The non-K model is also locked and can't be overclocked.)
The only options are to tweak the base clock, though this may cause stability problems with other components like RAM and HDD.
To adjust the multiplier and overclock, you need a CPU that supports overclocking (Intel K and X series on desktops) and a Z or X series motherboard (depending on the CPU type).