I recently re-installed my OS and updated my BIOS losing my OC settings, i did have it set at 4.2GHz.
Now I've been trying to get it back to that but for some reason it doesn't stick... In my BIOS my CPU Ratio is set to 42 but when i stress test using Prime CPU-Z and HWiNFO only show's that i reach 3.4GHz max (Stock speed for the CPU).
CPU-Z does mention that my CPU Turbo is a multiplier of 42 and i'm unable to disable Intel Turbo Boost Tech in my BIOS
You are overclocking by increasing the chip multiplier right and not just the Turbo multiplier? You can do it both ways. That's what it looks like anyway. The only other thing I notice is your RAM is at DDR3 1333. You need to enable XMP to run at it's rated DDR3 1600. Should not have anything to do with the CPU clockspeed though.
Heres a screenshot of both CPU-Z and HWmoniter still getting the same information.
It does mention that my turbo boost is 4.2GHz but i cant find anywhere in my BIOS where to turn turbo off, as i said when i change the CPU Ratio the setting"Intel Turbo Boost Tech" is untouchable.
below is a snippit from CPU-Z report.
Processor 1 ID = 0
Number of cores 4 (max 8)
Number of threads 4 (max 16)
Name Intel Core i5 3570K
Codename Ivy Bridge
Specification Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
Package (platform ID) Socket 1155 LGA (0x1)
Extended CPUID 6.3A
Core Stepping E1
Technology 22 nm
TDP Limit 77 Watts
Core Speed 3400.0 MHz
Multiplier x FSB 34.0 x 100.0 MHz
Stock frequency 3400 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4 x 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 6 MBytes, 12-way set associative, 64-byte line size
FID/VID Control yes
Turbo Mode supported, enabled
Max non-turbo ratio 34x
Max turbo ratio 42x
Max efficiency ratio 16x
Min Power 60 Watts
O/C bins unlimited
Ratio 1 core 42x
Ratio 2 cores 42x
Ratio 3 cores 42x
Ratio 4 cores 42x
TSC 3400.1 MHz
APERF 3400.2 MHz
MPERF 3400.0 MHz
Im having the same issue with extreme4-m bios 1.40 windows 8...it was ok with windows 7....multiplier locked to 38...when i try to change it,it just keeps returning to 38...tried keyboard + and - but still max 38
yer not sure anymore, reset to stock, updated BIOS and all drivers/chipsets i think AsRock may have made it turbo on all the time not sure, HWiNFO tells me that 4.2GHz is the turbo speed, but try as i might i cannot disable turbo while changing the CPU Ratio manually.