Experimenting with 8320 overclocking - voltages , frequencies , and throttling

bossgolf

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Aug 13, 2013
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Hi all,

couple questions regarding LLC, temps, frequencies and THROTTLING for 8320/8350 owners. I've been overclocking for 5 years and don't know what's going on with this, maybe its just my board...?

Useful Hardware info-Gigabyte 990fxa-ud3 rev3 / Cosair H60 Cooler / 650w antec earthwatts

I'll be using offsets of voltage in my description cuz i think it makes more sense, if you guys wanna see my voltages under load they're in the pictures attached :D


While testing -0.025 Voltage offset in my BIOS, I ran into a thermal limit (although, this was stable while testing IBT high 20 runs...approx 30 min). Seeing as my max temps in the picture below are very close to 62 degrees (this is ASSUMING that TMPIN1 = 64 degs and that TMPin2 = the NB); however, I deem the pass of this as stable because all I do is game on my rig.



image url

This was stable @ 4.4GHz w/ -.025v and LLC to extreme in IBT, Or so I thought, until I ran P95 blend test directly after. A worker instantly failed, and from this point, I upped the voltage in the bios to 0.000v in the bios and P95 ran fine now. Don't know why this happened, just assuming it needed more juice.

Now I'm running stable @ 4.4GHz / LLC = extreme / 0.000v offset translating to 1.488v while gaming and 1.44v - 1.452v while tooling around in windows.

my questions:

1) Will I be able to increase my frequencies/voltages anymore without stress testing ? It would be nice to shoot for a higher overclock; however, I need sufficient advice to help with voltages/frequencies at higher than 4.4GHz. Assuming it is advisable to try for a higher OC without stress testing , seeing as gaming will never reach those temps. If this is unadvisable to try for a higher OC, please tell me. I'd love to squeeze more out of this baby.

I guess what I'm asking is can I try to OC past 4.4 and try upping voltages so that I'll be able to game at higher clocks without a "what could be failed stress test" , so that I'd never reach the thermal limit since I'd never be at 100% load. I hear people are doing this. Like upping voltages and frequencies to like 4.8-5.0ghz and I guess "guessing at voltages" so they can play at higher speeds and never fail at thermal limits in gaming usage
2) I'm seeing that as temps in TMPIN2 (hopefully the NB temp and not CPU) go over 68 degrees I'll throttle down to .9v and 1400MHz. Not a concern , just wondering if users are experience the same throttling issues. I have HPC on, and all power saving features turned off.

3) In regards to "TMPIN1" in HWmonitor, is that the cpu core temp i need to keep my eye on? Please god let that be the case, because every thread I see for my mobo says it is, however HWINFO64 and CoreTemp state that in their software, my "cpu temp" is actually the temp that agrees with HWmonitor's "TMPIN2"; however, everyone says TMPIN2 in HWmonitor is my NB, which makes sense because its about 5-10 degrees hotter than TMPIN1.

Can anyone verify this?

4) LLC seems to add to the MAX voltage while under load, I've played with a number of OC's that have failed IBT and prime 95 (mostly within 10 - 20 min or either hit a thermal limit causing throttling). It appears from my list of data taken that I'll need above "normal or medium" LLC to achieve a stable overclock as I go above +.000v offset in my BIOS.

Has anyone on this board or similar boards been able to go above 4.4GHz and similar voltages? Seems like 1.488v at this setting seems high, but I don't know for sure I'm hearing mixed things from 990fxa-ud3 owners from previous posts on this thread.

 

bossgolf

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Aug 13, 2013
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10,530
LLC is a PAIN IN THE BUTT, I hate it , and its hard to find a balance betweeen THERMAL LIMIT vs. STABLE VOLTAGES with my 990fxa-ud3 rev.3 I just got. Don't get my wrong, I love the performance of this card running Crysis3, metroLL, BF3, PS2, and others on my GTX 760 overclocked. But I want the higher number! why?! squeeze all the juice out of this new FX-8320 as I can! first card since my 965BE and loving it!