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Frequency Drop Off Question

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Tyerker

Member
Joined
Aug 2, 2012
When I set options in BIOS, it is in the form of even numbers. 48 x 100 for instance.

But then CPU-Z and Windows show the actual frequancy as something like 48 x 99.76 which equates to 4.788.57 GHz instead.

I'm curious if this is the nature of all overclocking, and we just claim the frequency at a BIOS level, or where this small drop off comes from. I know we have some really technically knowledgable members here, and I'm really curious to what's behind this.

Maybe I'm overthinking it, I don't know.
 

S_I_N

Member
Joined
Jun 30, 2004
Location
San Antonio, Texas
its normal mine is set at 49x 100 but shows as 4913 or 49 x 100.3 lol each board is different as is each chip but you can put it to like 100.3 in bios without any issues to get a more rounded number
 
OP
Tyerker

Tyerker

Member
Joined
Aug 2, 2012
I didn't realize BCLK allowed for decimals. I'll look into it. Thanks for the tip.
 

UltraTaco

Member
Joined
Oct 28, 2017
I believe it has to do with spread spectrum. Mobo lets frequency wander around a bit to prevent interference with other electronics.