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Athlon 860K, any one picking it up? - Page 193

post #1921 of 3195
Quote:
Originally Posted by coffeerox View Post

juanitox, your temps might be perfectly fine. The thing about temperature readings on AMD cpu's is that it's fake on every program. The temp sensors don't actually work correctly. The only accurate indicator is thermal margin (except thermal margin still doesn't tell you your temp). Unfortunately your problem is that you don't know what thermal margin is, so what you're seeing might or might not be a safe temp.
that and idle temps on these are less accurate than loaded temps.

you need to try again to get amd overdrive running
post #1922 of 3195
It's been pretty hot lately so I decided to return to stock settings hoping that it would run cooler. Big mistake. I noticed that the system runs more unstable at stock with frequencies going all over the place (even under load, it can't stay locked at a certain frequency). I also caught the voltage going up to 1.502. For the past week, I've been shutting off the PC simply b/c I wake up to hot room.

Now I'm at a locked 3.7ghz with stock volts (1.3625 in manual mode), turned off PowerNow and it's running super smooth and cool. My benchmark run on MGSV produced an average 47c on Overdrive (60-70% load steady) and Prime95 was 37c (54c on my chart). It even idles near max margin too.
Edited by coffeerox - 9/22/15 at 11:02pm
post #1923 of 3195
On most motherboards the auto settings are a mess doing overvolting (like +0.05v) and then thermal throttling.... You may think that the motherboard manufacturers are getting nice prices on intel chipset......
post #1924 of 3195
Quote:
Originally Posted by coffeerox View Post

It's been pretty hot lately so I decided to return to stock settings hoping that it would run cooler. Big mistake. I noticed that the system runs more unstable at stock with frequencies going all over the place (even under load, it can't stay locked at a certain frequency). I also caught the voltage going up to 1.502. For the past week, I've been shutting off the PC simply b/c I wake up to hot room.

Now I'm at a locked 3.7ghz with stock volts (1.3625 in manual mode), turned off PowerNow and it's running super smooth and cool. My benchmark run on MGSV produced an average 47c on Overdrive (60-70% load steady) and Prime95 was 37c (54c on my chart). It even idles near max margin too.

Even at 3.7GHz that voltage might be too high. I can keep 3.7 with 1.13750v thumb.gif
post #1925 of 3195
What kind of cooler are you using? Really surprised about the heat issues some are reporting.
post #1926 of 3195
Quote:
Originally Posted by Feimitsu View Post

Even at 3.7GHz that voltage might be too high. I can keep 3.7 with 1.13750v thumb.gif
Shall I try to undervolt it? I have a profile that runs 4.0 at -.006 offset which shows up as 1.26 on CPU-Z. Occasionally, I get this weird pause and buzzing sound on videos though which is why I moved away from it. It never BSOD or hang though. It doesn't happen on every video. I'll go for hours before I'll get it again.
Quote:
Originally Posted by tone1492 View Post

What kind of cooler are you using? Really surprised about the heat issues some are reporting.
212 Evo but here, ambient can range from great to really bad. That's b/c my dad controls the thermostat and he's really bad at it. He'll turn it off randomly and ambient in the house will get to 85 and my room is extra hot, so I'm likely approaching 90 when that happens. We're getting close to winter though so I'm kinda anxious to see if I can run 4.3 or even 4.4.
post #1927 of 3195
Quote:
Originally Posted by coffeerox View Post

Shall I try to undervolt it? I have a profile that runs 4.0 at -.006 offset which shows up as 1.26 on CPU-Z. Occasionally, I get this weird pause and buzzing sound on videos though which is why I moved away from it. It never BSOD or hang though. It doesn't happen on every video. I'll go for hours before I'll get it again.

well why not? just load AMD Overdrive, put there your desired multiplier and voltage, start the stability test in Overdrive, and go down slowly with the voltage. When it will freeze, you'll note that voltage at that frequency is unstable, and you'll work your way up again at even smaller steps.

On my 860K I cannot go below 1v at all, at any frequency (even 2ghz), and at 1v I can keep 3.2GHz, stable after 10 hours of Overdrive.

From there, it's basically a linear ratio between increase in voltage and frequency. Specifically:

3.3GHz stable @ 1.025v
3.4GHz stable @ 1.05v
3.5GHz stable @1.075v

and so on, until 3.7GHz. From there up, the voltage steps required are getting a tiny bit larger (0.05v instead of 0.025v).
From 4.1/4.2 up, even larger. I believe the sweet spot is exactly before the voltage steps are still somewhat linear, after that the increased heat and power consumption are not worth the frequency increase, IMHO.
post #1928 of 3195
Okay so I've been spending a few hours undervolting and stress testing. I found it weird that I got it down to 1.11 and it still passed stability. So I tried it in BIOS, and nope, it didn't work. I suspect that AOD did not change the voltage (CPU-Z also showed no change during stress). After that fiasco, things were a lot more realistic.

1.15 (PC will not boot)
1.16 (PC boots, Windows won't load)
1.20 (Windows loads to login, after login, black screen)
1.21 (Windows logs in, no black screen, crashes on stability)
1.22 (Passes stability)

I think I'll leave it here for now and see if I can make a minor change to try to get the temp down.
post #1929 of 3195
Quote:
Originally Posted by coffeerox View Post

I suspect that AOD did not change the voltage (CPU-Z also showed no change during stress).
I wouldn't trust AOD with voltages at all. In fact the only thing I trust AOD with is thermal margin.
post #1930 of 3195
Quote:
Originally Posted by coffeerox View Post

Okay so I've been spending a few hours undervolting and stress testing. I found it weird that I got it down to 1.11 and it still passed stability. So I tried it in BIOS, and nope, it didn't work. I suspect that AOD did not change the voltage (CPU-Z also showed no change during stress). After that fiasco, things were a lot more realistic.

1.15 (PC will not boot)
1.16 (PC boots, Windows won't load)
1.20 (Windows loads to login, after login, black screen)
1.21 (Windows logs in, no black screen, crashes on stability)
1.22 (Passes stability)

I think I'll leave it here for now and see if I can make a minor change to try to get the temp down.

At what frequency did you perform these tests?
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