Help Overclocking 6800k Past 4.8Ghz, Thoughts?

BronzeStar

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Title says it all. Overclocking an A10 6800k currently at 4.8Ghz @ 1.475v. I'm ONLY overclocking the core not the igpu
Blend test for hours and it doesn't crash. Gaming for hours and no crashes.
Hits 50c TOPS Ever at full load. Idles around 27c

I've tried in the past to push it past 4.8ghz to no avail.
4.9ghz @ 1.475v it crashes within seconds of a test.
4.9ghz @ 1.85 - Crashes within a minute or two
4.9ghz @ 1.937 - Crashes, stable for a few minutes, tops during blend

My question is. Why am I having to up the vcore SOO much just to go .1ghz higher and it wont even be stable for more than a few seconds. Yet .1ghz lower and .1v lower it runs flawlessly.
Am I safe going over 1.5v? Max Vcore is 1.55v
I feel like I'm missing something or doing something wrong. Any advice would be much appreciated. Thanks!

A10 6800k w/ CM TX3
asrock fm2a55m-hd+
cx750


 
Solution
Looks like you hit the chip's limit.

Overclocking gets you diminishing returns at some point, you have to pump more voltage into the chip for a smaller increase in clockspeed. For some chips this is a gradual curve, for some chips it's more sudden. Looks like it's quite sudden with yours (though 1.475v is already a lot).

You have a very respectable overclock here, 4.8GHz is pretty fantastic. It's also all the chip can take without extreme measures it seems.

Vexillarius

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Aug 23, 2014
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Looks like you hit the chip's limit.

Overclocking gets you diminishing returns at some point, you have to pump more voltage into the chip for a smaller increase in clockspeed. For some chips this is a gradual curve, for some chips it's more sudden. Looks like it's quite sudden with yours (though 1.475v is already a lot).

You have a very respectable overclock here, 4.8GHz is pretty fantastic. It's also all the chip can take without extreme measures it seems.
 
Solution

BronzeStar

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Thanks Vex and Ewok. I'm happy, it just runs so cool, and with winter coming it's only going to run cooler. I've seen people going over 1.5v even upwards of 1.6v at around 5.2ghz - 5.5ghz. Most of those situations I've seen were on liquid cooling, and extreme boards. Basically at this point if you're having to increase voltage that much for 100mhz increase you're probably hitting diminishing returns? Thanks.
 

Vexillarius

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Yep, at this point that much extra voltage for 100MHz is simply not worth it anymore.

Those 1.5-1.6v overclocks generally don't last very long, as voltages that high shorten the chip's lifespan quite significantly, even with good temps. OCs like that will become unstable after not all that much time, requiring more and more voltage.

You should be happy, you have a great overclock with even better temps. Running into voltage limits before temperature limits is a luxury we'd all like to have.
 

BronzeStar

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Yeah, well it's like the only nice thing about living in a cold state. -.- Thanks :)