Overclocking problems, causing a 300mhz drop and overheating.
Overclocking problems, causing a 300mhz drop and overheating.
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It seems the cooler isn't suited for overclocking. Would you like me to identify its model or take a photo?
Prime95 indeed leverages AVX, even in the newest releases. If you're looking for a version without AVX, go with Prime95 26.6. You should prepare for significant heat output—around 1.3v or higher when using a 8700k with stock cooling, which is probably too much for a 4.8ghz processor. I wouldn't suggest applying such high voltages to stock cooling. A cryogenic H7 cooler would be better suited for a more gentle overclock. For a dual-tower setup, an NH-D15 cooler would work well if you're aiming for a 5.0ghz boost.
Derbauer is employing Prime95 26.6 in that clip examining his graphs at 3:30, confirming he is accurate—it doesn’t rely on AVX. If your processor operates at 300mhz with an AVX offset of -300mhz, then yes, that’s definitely the reason it runs at 300mhz during an AVX task. The voltage needed for 5.0ghz typically falls between 1.3v and 1.4v.
Dunlop0078 :
Derbauer mentions using Prime95 26.6 in that video segment at 3:30, confirming his claim it doesn’t rely on AVX. If your processor runs at 300MHz with an AVX offset of -300MHz, then yes, that’s likely the reason for the speed drop during AVX tasks. The required voltage for 5.0GHz probably falls between 1.3v and 1.4v. Thank you. I just rewatched the video and he even confirms he’s using 26.6. I wasn’t sure I missed it before, but now I understand why the drop happened. I also discovered the game I tested had AVX support, which explains the performance issue. So I’m still figuring things out... Basically, do I need a new cooler and retest?
A new cooler would definitely be useful. Personally, I don't manage an AVX offset since some games do use AVX for various reasons. The workload in games is generally not as heavy as in programs like P95 or AIDA64. Still, I'd keep an eye on the temperatures in those games just to be safe. And no worries, I'm happy to help.
the issue lies with your cooler. it's not perfect, but definitely worth improving. it resembles a boxed intel cooler. what would be your budget for upgrading? dunlop is correct—download 26.6. you might still face problems if temperatures reach 95c, which is unacceptable and could lead to thermal throttling. for now, with that limited cooler, i'd stick to stock speeds for safety. it's likely you haven't caused any damage, so don't worry. your cpu and motherboard have built-in safeguards you probably haven't tested yet, and you shouldn't either.
Regarding the budget, I’m open to purchasing whatever is necessary. However, I’m not aiming for the most extreme adjustments. This PC is mainly used for VR Sim Racing, covering about 3 to 4 games currently. Yesterday I got bored and decided to try overclocking it. Before that, I had no problems, but I thought if I could optimize it a bit more, I’d be better off. I’m going back to the original settings now until I choose a cooler and try overclocking again.