Colonel_Panic
Limp Gawd
- Joined
- Oct 5, 2009
- Messages
- 328
I work for a company developing a line of custom waterblocks and we're currently testing some examples with a Devil's Canyon 4790K i7 chip.
My job so far has been to boost clock speed so that we can gather CPU temperatures across a variety of blocks but getting any stability above 4.8GHz has so far proved impossible. Auto voltage to 4.8 was pretty easy, but as soon as I boosted the multiplier to 49, even manually boosting voltage to crazy levels didn't produce a stable system with IntelBurnTest (boots to Windows every time).
From what I've read, 4.9 GHz seems to be a very tough level to crack, with most users reporting 4.7 or 4.8 limits. Are the odds of a 5.0+ capable chip that slim or is there something I may be missing? Some reports seem to have 1.5V Vcore required but I didn't hit that yet (stopped at 1.49 to read more). My method is basically lock the bclk and increment the multiplier, with a related voltage increase. I realize super stable overclocks are as much art as science but it'd be nice to get some stability at a high clock.
My job so far has been to boost clock speed so that we can gather CPU temperatures across a variety of blocks but getting any stability above 4.8GHz has so far proved impossible. Auto voltage to 4.8 was pretty easy, but as soon as I boosted the multiplier to 49, even manually boosting voltage to crazy levels didn't produce a stable system with IntelBurnTest (boots to Windows every time).
From what I've read, 4.9 GHz seems to be a very tough level to crack, with most users reporting 4.7 or 4.8 limits. Are the odds of a 5.0+ capable chip that slim or is there something I may be missing? Some reports seem to have 1.5V Vcore required but I didn't hit that yet (stopped at 1.49 to read more). My method is basically lock the bclk and increment the multiplier, with a related voltage increase. I realize super stable overclocks are as much art as science but it'd be nice to get some stability at a high clock.