Originally Posted by ryboto
Originally Posted by Belial
Why would you only do 4.2ghz, that's terrible, a non-k edition CPU can do 4.2ghz. 4.4-5.1ghz is really where you want to be a with a k edition CPU.
You need to stability test your overclock using 24 hours of prime95 custom blend as well.
24 hours is still the norm? I have a small case, wasn't sure I'd have the cooling power for more than 4.2ghz, and I don't plan on removing the lid. Plus I'd like to keep it quiet.
Yes, 24 hours minimum is still the norm. You should have sufficient cooling for 4.5-5ghz, any aftermarket cooler will. It's more than 4.5ghz, and how good the chip is, that is where you start pushing limits, but any chip on any non-radial cooler, can do 4.5ghz at the very least. As long as you keep voltage below 1.5v and temps below 95*C, you should be fine. Push as far as you want. How big your case is shouldn't matter, obviously it may be warmer and maybe you'll hit a thermal limit earlier, but the same rules still apply.
Overnight I hit a peak of 78C with the slow fan settings. One core failed in P95. I upped the offset to +0.055v, and didn't touch AXTU when I restarted, so now the fans are at ~800/1250 for the 180mm/140mm. It's running now, so I'll know when I get home if it needs more. Strange, Auto vcore at 4.5 didn't up the voltage at all, and everyone was telling me it'd overvolt!
Thats why 24 hours matters. passing 12 hours, or 50 passes of ibt, means nothing.
Seems like you got it figured out