Overclocking i5 2500k

sreeve1993

sreeve1993

sreeve1993

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Hi all,

I am still rocking an i5 2500K and I've been tinkering with my Overclock settings as I've been running @4.2GHz for sometime and I'm trying to push for 4.6Ghz.

It seems quite stable, and I believe I'm close to getting it perfect, but I have experienced a few crashes under medium load (browsing the web, watching Youtube), typical multi-tasking stuff. I am seeking advise from more experienced individuals to overlook my settings:

I'm on a AsRock Extreme 4 Gen 3 Motherboard, My settings so far:

Offset is set to +0.010
Additional Turbo Voltage +0.070

Idle fluctuates at 1.0-1.1V
Full Load at 1.4-1.44V
LLC: Set to level 1

Full load Temps sit just below 70c, never seen them hit above 75c.

Anyway, I am a bit curious with my Full load voltage, is this too high?
I have read that 1.4V is too high, unless this is only specific to over-clocks that are set to manual?

Let me know if you need any more information :)

Thanks in advance!
Stefan
 
See my post on this thread regarding the guidance on voltages given by OCUK which I understand they were given from Intel https://forums.overclockers.co.uk/t...ax-safe-vcore-i7-2600k-sandy-bridge.18441838/

Personally I would start with a fixed core voltage that you are happy with to find your max stable overclock at that voltage, then play with offsets and LLC to get it stable at the same speed. That way you know its your settings that are out and not that the chip can't run at that speed.
 
Nice to see another person still rocking the 2500K!

I've dusted off my rig and started going for a bit more of an overclock too. I've had great success with LLC level 5 on a Gigabyte board, 4.8Ghz around the 1.4v (still testing it at the minute). I personally don't want to venture too far beyond this voltage, I guess it's the point of diminishing returns? But then again, if it pops, there are some cheap used 2600k's around to replace it :)
 
Just to avoid confusion motherboard manufacturers can use different numbering systems for LLC levels some run from low to high with 1 being the lowest setting but Asrock's run from high to low with 1 being the highest setting. So I believe you are both using similar levels of LLC :)

A cheap 2600K / 2700K / 3700K would be a good upgrade if you can find one as you'll potentially be being bottlenecked by 4 threads.
 
At the moment I have it stable with 4.4GHz but when I go past this it's seeming difficult.

I don't think 4.6GHz is viable, and I'm when trying to run it at on fixed mode, to find the vcore it's getting too close to 1.4v.

The above setup I mention from my original post is a stable setup but it does crash at random times. Mostly when under medium load.

I have been looking into the i7 2600k, finding a cheap one is a good shout.
 
I am waiting on the arrival of a new PSU to confirm the overclock as it's not adequate or failing with the GPU loaded too, but 4.8Ghz at around 1.39v LOAD / Peak 1.440v (it has a split second spike when coming off load) and 1.36v idle with Max LLC seems to be good. I've only tested this for around 30minutes in prime95 small test, and browsing for a few hours.. I was having similar issues with the system hanging when browsing and things, so increased LLC but the spiking voltage is a bit 'dodgy' but then I don't think I'm that fussed...

I've found a website that stocks used i7 2600k's if it goes all southward!

Obviously the silicon lottery plays a part, a friend of mine can't push his beyond 4.5ghz @ 1.4v so it's a hit and miss kinda thing.

I'd love to upgrade the entire rig but it's still such a capable setup at 1080p, plays doom & TR at high settings locked 60FPS for most of it. Is PCIe 3.0, DDR4 etc really worth swapping the boards and CPU's?
 
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