cancel
Showing results for 
Search instead for 
Did you mean: 

CPU speed not changing

switch33
Level 7
I've had my Maximus IV Extreme and 2600K overclocked for a few months now, until recently. At one point about a week ago and during a combination of reboots, I noticed my motherboard had loaded the bios defaults on its own. It had reverted back to default clocks, onboard devices I had disabled were now enabled again, etc. I ended up leaving it this way until a couple of days ago when I decided to flash the 2105 bios (up from 1904) and re-do my overclocking. At this point I noticed that my OC profiles were also gone and its possible I may have forgotten a key setting but after doing some research and following guides, I cannot get any CPU speed changes to stick. I can change the multiplier and reboot and go back into the bios only to see that the CPU speed still show 3400 MHz while the multiplier says 40 (100 BLCK). I've tried clearing the CMOS and multiple 'load defaults/reset up the bios but the result is always the same. Any amount of ratio/board tweaking will always have the same stock clock speeds of the 2600K.

Anyone know of something to try?
6,684 Views
10 REPLIES 10

Ok so no change after the reset, still can't post of bios bank 2 and bios bank 1 still reports current cpu speed as 3400MHz. I did some more testing though, I do know that the 'current cpu speed' in the bios with go below 3400MHz if the multiplier is lower than 34 but never goes about 3400MHz if the multiplier is above 34. Also I installed Windows 7 on a blank drive and set the multiplier to 48, 'current cpu speed' in the bios shows 3400MHz but cpu-z shows 4800Mhz. Also while testing I noticed that the led next to the cpu socket was on 'cpu normal' at default clocks and was changing to 'cpu high' when at a 48 multiplier. I was never able to get my system stable past 4900MHz so tried setting the multiplier higher (50 and 52) and it wouldn't go past post without more bios tweaks. This tells me it may actually be overclocking but not reporting the correct 'current cpu speed' in the bios.


Any thoughts?