4670k can't reach 4.5Ghz without rasing voltage by 0.04V

goonion

Commendable
Nov 24, 2016
2
0
1,510
i got a 4670k i5 CPU with coolermaster hyper 212 EVO,
mother board is MSI Z97-G45 Gaming
started overclocking 2 days ago and managed to get 4.4Ghz on 1.224V
i'm using intel burn test on "very high" setting for 10 runs
i get stable with mid 80C temps
AIDA64 gives me 55-60C temps
both under full load ofc
after 2 days nothing, no crash no nothing, worked like a charm

BUT today when i try 4.5Ghz i "need" 1.280V + for it to be stable, and i get 96C on hottest core(Intel burn test)aida64 is 80C max,
is this even normal?
this is my first time overclocking so that's why i'm asking about the margins.
PS: im only changing the multiplier and cpu core coltage rest are on auto

question is should i try messing with the other bios options? like ring clock and voltage?
dunno anything about that so i'll have to read some guides and stuff if in fact that is the problem

thank you in advance

EDIT 1: I can boot 4.5ghz with v1.231+, but after some time gaming i got BSOD so i added 0.01v after each crash till i got to 1.28v and started stress testing
 
Solution
What you are describing is normal. Pretty much all chips will hit a wall where it takes a significant voltage increase to stabilize an additional 100mhz increase in clock speed. Generally when one hits this point it is considered the near max OC that people achieve due to power needs or thermal limitations.

Baralis

Distinguished
Jun 10, 2010
382
1
18,965
What you are describing is normal. Pretty much all chips will hit a wall where it takes a significant voltage increase to stabilize an additional 100mhz increase in clock speed. Generally when one hits this point it is considered the near max OC that people achieve due to power needs or thermal limitations.
 
Solution

goonion

Commendable
Nov 24, 2016
2
0
1,510


ty for your reply, didn't know the wall is that high