Multiplier from 35-43 and temp is 99

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elk123

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Hi,

First time overclocking. I disabled power saving states (for now) and turbo mode, set my memory to xmp profile 1, and increased cpu clock ratio from 35-43. Didn\t increase voltage. After 5 min of doing prime 95 core temp already reached 99c. I have a hyper evo 212, is there something wrong with it? Worried that thermal paste moved around too much. When multplier was at 40, I think my temps reached 85.

Thanks
 
Solution
Vexillarius
The lower-than-expected VCore could be because of Vdroop but it's a bit extreme for that.

Set everything back to stock, turn of power saving states and Turbo, reboot, reload the XMP profile, reboot, and start your OC all over again, very slowly.
Turn up the multiplier by x1 at a time, no larger jumps! If your system isn't stable turn up VCore a tiny bit (0.025v or less) and try again. Rinse and repeat until temperatures reach 75-80 degrees Celsius turn the VCore and multiplier back a little, run a long stresstest (both Small FFTs and Blend) and if temps are within spec, stop. You're done. That's the max you can reach with your current system.

As for Vdroop:
Vdroop is a phenomenon that causes a difference in voltage between what you...
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elk123

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It seems like voltage went up automatically. Is this normal? Vcore was at 1.28 when I put it at 43 ratio. I was concerned so I loaded defaults and now it vcore is 1.080

My motherboard is z97x gaming 5

CPU is 4690 k
 
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thor220

thor220

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Increasing the clock multiplier from 35 to 43 was ill advised. You should never, ever make such a large jump when overclocking. You could have easily damaged your processor.

The temperatures you are seeing is from the motherboard's automatic voltage control. Lower the core clock multiplier to decrease the temperature. I would not recommend that you mess around with voltage until you have more overclocking experience. If you do the same sort of jump that you did with the clock multiplier, it will fry your cpu.
 
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elk123

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No, I didn\t make that jump, although I can see that my post was misleading. I went from 35-40 and then increased by 1. Don\t know if that was ill advised but I read it in a guide, I meant that when I got to 43, the temps started getting crazy cause the vcore jumpued so much. Now, Ive been trying to increase the vcore manually bit by bit but it doesnt really seem to be so responsive, although it is better than before.. I put it at 1.168 and it says 1.176 on the classic bio page. Multiplier is set to 44. Prime95 has been one for 10 min with max temps of 88 but seems to hover around 68. I'd like to try with a slightly lower voltage but as i said it is a bit unresponsive. Any ideas? Thanks
 
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elk123

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Are you saying that I should lower the core clock speed? Ive been using the clock ratio so far. I dont understand because there is nothing called core clock multiplier in my bios. Only clock ratio and core clock
 
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thor220

thor220

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clock ratio and and clock multiplier are the same thing, different name. You shouldn't be touching the core clock, that's for extreme overclocking only.

For a 10 minute stress test, 88 is much too high. If you're going to be doing anything intensive, expect that number to be at least 10 degrees higher. You've got to consider that the stress test only runs the cpu. When gaming/editing, the CPU, hard drive, and gpu are all running hot.

"I'd like to try with a slightly lower voltage but as i said it is a bit unresponsive"
If you have to up the voltage so much it means you're processor is reaching it's limit. Just lower the clock ratio and the voltage. Make sure that you're system is stable by running prime95 for at least an hour or an intensive game. Skyrim is a good choice, it's very picky.
 
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Vexillarius

Vexillarius

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The lower-than-expected VCore could be because of Vdroop but it's a bit extreme for that.

Set everything back to stock, turn of power saving states and Turbo, reboot, reload the XMP profile, reboot, and start your OC all over again, very slowly.
Turn up the multiplier by x1 at a time, no larger jumps! If your system isn't stable turn up VCore a tiny bit (0.025v or less) and try again. Rinse and repeat until temperatures reach 75-80 degrees Celsius turn the VCore and multiplier back a little, run a long stresstest (both Small FFTs and Blend) and if temps are within spec, stop. You're done. That's the max you can reach with your current system.

As for Vdroop:
Vdroop is a phenomenon that causes a difference in voltage between what you set in the BIOS and what the CPU actually gets when it's under load. Load Line Calibration can counter Vdroop but if you set LLC too aggressively it can cause voltage spikes.

If the VCore you see in monitoring software under load starts to get lower than what you set in the BIOS and your system is hard to get stable you can try turning Load Line Control/Load line Calibration/LLC from Auto to a step above its middle setting. If it still shows that VCore it's quite a bit lower under load than what you set you can turn LLC up another notch. I wouldn't recommend setting it any higher for your first overclock since if you're not careful it can cause voltage spikes.
Also, the set VCore and the VCore you observe in Windows will never be exactly the same, don't worry about it if the difference isn't too big.
 
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elk123

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Before I saw your post, I lowered the multiplier to 43 and worked the voltage down to 1.100 (went lower but it crashed). CPUID HWMonitor showers vcore beain 1.116, so I imagine that's ok? Prime 95 been on for 25 min so far on blend with a max of 78c. So I guess it is looking good? If Prime95 stays below 80 (or maybe even just a bit above) after a few hours, I guess it is ok?

I couldn't get temps lower than 80 with a multiplier of 44 and higher. I thought I would with the 212 evo hyper, so I'm wondering if the thermal paste was applied poorly (i used the spread method but had a bit of trouble screwing the fan down, so it slid around a bit). Otherwise, do you think getting a couple of more case fans would help me much?

Finally, I was reading around before and many seemed to say that it is ok to enable EITC and c states with today's cpus. I turned off turbo setting but if prime95 doesnt show any problems and I dont crash, is it ok for me to leave my BIOS settings the way they are?

Thanks a lot!
 
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Vexillarius

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That's looking much better!

For temperatures you should look at Prime95 Small FFTs, though if you're not rendering videos all the time or running Folding@Home or something similar you should be fine if you keep Blend temps under 80. Just don't tell the purists.

A couple hours of both Small FFTs and Blend followed by a couple hours of the most intensive gaming I can think of is what I usually do to ensure stability at the end of overclocking.

You could try reseating the cooler and reapplying thermal paste, but I don't think it will gain you that much. The Hyper 212 Evo is great bang for buck, but it isn't great for overclocking performance-wise. Small overclocks are all you can expect with it really. It looks like you have a pretty good chip though, 4.3GHz @ 1.1v is quite nice. Might even be worth it to invest in a better cooling kit ;)

Extra case fans may help, or they may not. It depends on how your airflow is right now. If it's already good there's little point in extra case fans, but if your airflow isn't that great you might gain a nice bit of cooling from extra case fans.

HWMonitor showing 1.116v when you set 1.100v in BIOS is fine, nothing to worry about.

You can try to turn the power saving options back on but make sure to stresstest your system again to make sure it's still stable.
Turbo is quite a bit trickier and it probably won't gain you much at the moment while it may very well destabilize your system. I personally don't touch it when overclocking. Besides, your overclocked CPU frequency is already way above the normal max Turbo frequency.

EDIT: Also, you should leave HWMonitor on for a day while you do the most intensive things you normally do with your system. At the end of the day, look at the max temps HWMonitor registered. Those are probably the most important temps to look at when you've somewhat settled into your overclock.
 
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elk123

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Ok great, thanks.

It's so strange, when I first set the multiplier to 43 (when I created this thread), the voltage jumped up to 1.28 and I guess that/s the temp went up to 99c. There wasnt any option to switch it to manual but after setting the voltage, it hasnt seemed to change that drastically. A bit worried that it might jump up again but I imagine I'm just being paranoid.

Thanks so much for the help.
 
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Vexillarius

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Voltages can be weird sometimes. If VCore was on Auto when that happened then that's probably what caused it, Auto VCore overcompensates for high frequencies/high CPU usage sometimes.

Glad to help, if you have anymore questions feel free to ask! ;)
 
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Vexillarius

Vexillarius

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It depends on who you ask, some people say 30 minutes, some say 3 hours, some say 6, some say 12, some say 24 or even longer.
Personally I usually test for ~3 hours (mainly because I can't be arsed to wait 12 hours) followed by a lot of normal intensive usage. That will reveal the vast majority of instabilities. Also, some perfectly stable, fresh out of the box stock CPUs will fail a 24 hour test.

In general, a few hours will be enough for a system that isn't super important for company work or something similar. Running Memtest86+ after your system is Prime stable can be a good idea to prevent silent data corruption, but most CPU OC related RAM instabilities will be picked out by a Prime95 Blend test. You can also be a tiny bit more generous with VCore voltage than is absolutely required, that'll weed out a lot of the smaller issues that would otherwise take weeks to surface (those issues are generally not very problematic and may just as well not even be present though).

Personally, when I do my taxes or bank related things I turn my system down to stock just to be sure, but even that's probably not necessary.

In the end, stability is never absolute. I'd recommend 3-4 hours of stresstesting and about a day of intensive usage as a minimum, that'll weed out 99% of the issues. After that, it's up to you. Is 99% enough for you, or do you want 99.9%? Or 99.99%?
 
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elk123

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when you do go back to default settings how do you go back to your oc ones? Slowly or jump up (is jumping dangerous even if you know the settings work?)
 
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Vexillarius

Vexillarius

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When you've achieved a stable OC you can go into the BIOS and there will usually be an option to 'Save CMOS to BIOS' or 'Save Profile' or something similar. You can use that to save all your current settings.

I have one profile that has my overclocked settings and one profile that has stock settings plus proper AHCI config etc. I just jump between them when needed. Big jumps are dangerous when you don't know what your chip and the rest of your system can handle yet, but jumping from a safe, stable overclock to stock and back is no problem at all.
 
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