A bit off topic but 1.349V on cpu, or am I reading it wrong?
Another person trying to melt their processor.
1.3V is incredibly high for Haswell, you shouldn't do it 24/7
(04-11-2014, 11:48 PM)cluthz Wrote: [ -> ]A bit off topic but 1.349V on cpu, or am I reading it wrong?
(04-12-2014, 12:07 AM)Anti-Ultimate Wrote: [ -> ]Another person trying to melt their processor.
1.3V is incredibly high for Haswell, you shouldn't do it 24/7
1.350v was the lowest voltage I could give to get 4.5 stable. I did a fair bit of reading up before attempting an OC and after I did I described every step, clock and voltage at overclock.net and while no one told me I'd be melting my processor, yes, 1.3v+ is pretty high for 4.5, but maybe I got a bad chip? Temperatures are ~25c at idle and never go past 75c no matter what I did so far. A heavy non-synthetic stress test can get temps up to 80c or so.
Edit: Actually I might be able to get it as low as 1.330v if I am lucky but 1.325v is not stable for certain.
Yeah, Anti-Ultimate's opinion on the voltages seems to contradict that of a whole forum of overclocking experts and enthusiasts, though, he does raise a good point. I don't think 4.5 is your 24/7 if you can't do it without 1.35, if you plan on keeping that CPU for a while. I mean, for someone like myself, who desperately needs to replace their CPU anyways, being reckless with the voltage is sort of okay, but I'm willing to bet that you very recently got that computer, and don't plan on dousing it in ceremonial flames when you replace it.
(04-12-2014, 07:56 AM)kinkinkijkin Wrote: [ -> ]Yeah, Anti-Ultimate's opinion on the voltages seems to contradict that of a whole forum of overclocking experts and enthusiasts, though, he does raise a good point. I don't think 4.5 is your 24/7 if you can't do it without 1.35, if you plan on keeping that CPU for a while. I mean, for someone like myself, who desperately needs to replace their CPU anyways, being reckless with the voltage is sort of okay, but I'm willing to bet that you very recently got that computer, and don't plan on dousing it in ceremonial flames when you replace it.
How much of a lifespan hit are we talking about here? If it's that bad I can either OC only when I need to (so only whilst using Dolphin as of now) OR I could accept that I got a bad chip and lower my core clock to 4.4, possibly 4.3 so that my voltage can be stable at 1.250v. How noticable is the performance game between 4.3 and 4.5 on dolphin?
EDIT: Just noticed flickering lines and artifacts on my monitor which went away after disabling the afterburner tweaks.
Overclocking on radeon cards can cause artifacts, flickering, and the inability to get rid of screen tearing by using vsync, by the way, forgot to mention.
And, the lifespan hit gets harder and harder the higher the voltage is. Example: let's just say that my CPU is supposed to last 5 years at 1.4 (stock on most Phenom II/Athlon II processors, though, these babies are supposed to last much, much longer than 5 years). If I raise that to 1.45, I'll get ~4-4.7 years out of the chip, to 1.5, 3.5-4 years, and to 1.6, 2-3 years.
(04-12-2014, 07:46 AM)Nyrii Wrote: [ -> ] (04-11-2014, 11:48 PM)cluthz Wrote: [ -> ]A bit off topic but 1.349V on cpu, or am I reading it wrong?
(04-12-2014, 12:07 AM)Anti-Ultimate Wrote: [ -> ]Another person trying to melt their processor.
1.3V is incredibly high for Haswell, you shouldn't do it 24/7
1.350v was the lowest voltage I could give to get 4.5 stable. I did a fair bit of reading up before attempting an OC and after I did I described every step, clock and voltage at overclock.net and while no one told me I'd be melting my processor, yes, 1.3v+ is pretty high for 4.5, but maybe I got a bad chip? Temperatures are ~25c at idle and never go past 75c no matter what I did so far. A heavy non-synthetic stress test can get temps up to 80c or so.
Edit: Actually I might be able to get it as low as 1.330v if I am lucky but 1.325v is not stable for certain.
Try Intel Burn Test and tell me it doesn't reach 85°C (the max for haswell should be around 75°C since it's 25nm)
(04-12-2014, 09:02 AM)kinkinkijkin Wrote: [ -> ]Overclocking on radeon cards can cause artifacts, flickering
Before my 670 died there were alot of artifacts on screen so I was just paranoid. Good to know it's expected at least and it didn't seem to happen in-game, just in windows.
And 3.5 year life-span is plenty good for a cpu by then it'll be time for an upgrade
!
(04-12-2014, 09:02 AM)kinkinkijkin Wrote: [ -> ]and the inability to get rid of screen tearing by using vsync
I already had a hard time reducing tearing WITHOUT the OC...
(04-12-2014, 07:34 PM)Anti-Ultimate Wrote: [ -> ]Try Intel Burn Test and tell me it doesn't reach 85°C (the max for haswell should be around 75°C since it's 25nm)
IBT is an unrealistic load with unrealistic temps, no application I will ever run will get me close to that. Haswell is a 22nm actually and according to what I read including this very popular haswell ocing guide on overclock.net:
Quote:Anything under 80C is absolutely OK for 24/7 running even for the paranoid. 90C or higher is only acceptable during a stress test. Please avoid 100C, that is dangerous and the CPU will attempt to throttle.
I'm (un)lucky if I ever hit 75C. Not running on stock cooling here. And towards the topic of voltage:
Quote:What matters in the end are two things when it comes to voltage safety: A) You do not hit above 95C under whatever you wish to stress and B) You do not exceed 1.45-1.5v no matter what. The thing is, most people run into the first problem long before they hit the second, because by 1.35v if you want to run Linpack, you're already getting dangerous temperatures on air. If you are using a custom loop with a delid though, the second problem might hit you first. Personally I am running 1.42v at 4.6ghz on D14 and the only reason why I can do so is because I'm not stressing with Prime or Linpack.
You will have to see for yourself how long you want to keep it. If you can afford to get a new processor anyways go for it. But if you want to keep this little shit for a long time, I suggest you only go for your sweet spot, Dolphin will run most games at fullspeed on 4.2Ghz regardless, even with LLE
Also bear in mind that when you reduce a CPU's lifetime with transistor damage through overvolting it, it will start needing higher voltages still to remain stable before it dies. This might be something you should consider.