Couple of quick q's

[SirJinks]

Am overclocking my i5-357k Ivy bridge on a Gigabyte Sniper M3 board and can hit 4.3GHz with an offset of -0.04, CPU-Z reports 1.272 core voltage whilst running prime. I may be able to add even more offset subject to some more testing. Anyway, bumping the multiplier to 44 for a 4.4GHz overclock and I have to dramatically raise the offset to +0.01 and it still isn't fully stable - temps are in mid 80's and core voltage is around 1.35. So -

1) Will a different motherboard likely lead to a better overclock at 4.4GHZ with stability at less voltage / temps?

2) Will adding two more sticks of ram affect any overclocking stability? (My ram is running stock, no overclock applied)

 

[OLDPHART]

Am overclocking my i5-357k Ivy bridge on a Gigabyte Sniper M3 board and can hit 4.3GHz with an offset of -0.04, CPU-Z reports 1.272 core voltage whilst running prime. I may be able to add even more offset subject to some more testing. Anyway, bumping the multiplier to 44 for a 4.4GHz overclock and I have to dramatically raise the offset to +0.01 and it still isn't fully stable - temps are in mid 80's and core voltage is around 1.35. So -

1) Will a different motherboard likely lead to a better overclock at 4.4GHZ with stability at less voltage / temps?

2) Will adding two more sticks of ram affect any overclocking stability? (My ram is running stock, no overclock applied)

1) No, like any CPU you play a lottery its the luck of the draw how well it overclocks and at what voltage especially Haswell.

2)Yes it can.

 

[postmanfw]

Running on stock cooler?

 

[SirJinks]

Running on stock cooler?

No, have got it on a Noctua NH-U12S and took delivery of an NH-D15 on Saturday which I have yet to install. I don't think my cpu will hit 4.4 without levels of voltage I'm not really happy to go to.

As a side note, my pc NEVER crashed when stress testing my overclocks with Prime, however browsing the net with IE or playing a game would show the instability / crash. I would have expected the other way around.

Thanks as always for your input guys.

 

[PaulyD]

Sometimes with speedstep enabled the core voltage will drop lower than what is required when the CPU is idle/near idle, so usually a bump in voltage would solve this but mean higher voltage when stressed.

You might have more luck disabling speedstep and just running at a constant clock/voltage.

Also even though benchmarks pass it won't be its 100% stable. I can pass benchmarks on GPU but crash in seconds in demanding games.

Could try notch VTT up to see if that helps, I never had a need to though even at 4.6ghz on my 3570k