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4770k on a maximus formula reported as 800mhz

MatsGlobetrotte
Level 10
I have tried all the settings to get away from the processor being reported as 800 Mhz as base clock but simply cant find why it is supposedly set. I see the number in the bios main page. I have turned of all powersavings everywhere and the system is actually running at 4.6 ghz.Anyone knows which actual setting gives this mad number?
It started with a VIC-20... and now it is. Maximus Formula VI Intel 4770K 4.6GHz ASUS GTX780Ti 3GB Corsair Platinum Dominator 16GB 2400MHz Raid Express 240GB Samsung EVO 512 GB SSD Corsair 900D EK watercooling Corsair RM1000 ASUS PB278Q



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4 REPLIES 4

jab383
Level 13
Good work getting the OC to 4.6GHz.

Do you have speedstep (EIST) enabled in BIOS? 800MHz is the idling condition when speedstep is enabled. To test that, apply a CPU load. Speedstep behavior is to increase core clock to match the load.

Do you have a power plan selected in Windows? A power plan other than High Performance will let Windows reduce processor clock at idle and light loads.

Jeff

Hi JeffNope EIST is off and confirmed to be off the whole week:-) and powerplan is on high performance also. Do note this is what it reports in the main bios setting. Thus im not even in windows at that time. Then i start windows and CPUZ and even in idle mode it says 4.6 Ghz.Tnx
It started with a VIC-20... and now it is. Maximus Formula VI Intel 4770K 4.6GHz ASUS GTX780Ti 3GB Corsair Platinum Dominator 16GB 2400MHz Raid Express 240GB Samsung EVO 512 GB SSD Corsair 900D EK watercooling Corsair RM1000 ASUS PB278Q



jab383
Level 13
BIOS has 2 places where EIST can be enabled/disabled. I'm not clear on how those two interact, but I suggest you check them both:

Extreme Tweaker tab -> CPU Power Management
Advanced tab -> CPU Configuration -> CPU Power Management

Another suggestion is to enable Fully Manual Mode. I run that full time.

Jeff

What Jeff says is correct, however I encounter this problem when fiddling about with my UEFI clocks and the 4-way optimisation.

The only way I've found to stop this happening is to Load Optimised Defaults in the UEFI and then manually start restoring my clocks/voltage/XMP and misc settings.