i7-4770K Bad overclocker or I may need help

[Erosannin]

Hello I recently had to RMA my entire computer (except the case and optical drive).

 

When I sent my dead i7-4770K to Intel I had quite a good OC chip (1.10 VCore for 4.2GHz and 1.28Vcore for 4.8GHz).

 

Now I got my new CPU and to stabilise it at 4.2GHz it takes 1.235VCore (4.6GHz was never found stable even with 1.48VCore).

 

My motherboard is an ASUS Z87 Gryphon and I might need a bit help as Haswell doesn't OC like SB and IB (at least with this board).

 

I googled some guide to OC on my board and never found real good stuff.

 

Help me please?

[ccokeman]

I had one chip do 4.7 and one that did 4.5 and the difference between them was that one would run a higher cache ratio than the other. Leave your cache ratio at 40 and push the core clock up 1 multiplier at a time and run it until you run out of cooling or stability. If you run out of stability more voltage on the chip, IO or SA. In that respect it is very much like SB and IB. There is no magical setup on these chips and no hard and fast rules. They vary significantly from chip to chip. 

[Erosannin]

My cache ratio is at 42 right now (same as my CPU) and it runs pretty fine with the voltages I told you.

 

If I try to work 4.4GHz I can go as high as 1.35VCore and it is still not stable.

[ir_cow]

what ccoke said pretty much sums it up. Not to many people can go above 4.5ghz with the 4770. Even with all the voltage in the world.

 

I would do the same thing ccoke said though. raise the CPU Multi until you hit a wall, than raise the Ring Ratio. Include the IO/SA boost of +.195  and thats about all you can do.

[ccokeman]

Running 1 to 1 on the core and cache ratio gives you the best performance if you can do it. Try dropping the cache ratio and bumping up to 43 on the core.  

[Erosannin]

Cache Ration is at 42 and Core ratio is at 44

 

All tested stable

 

Not getting past 77 degrees in full load (on 1 core otherwise it's more in the range of 72).