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Multiplier, frequency and voltage all drop under load.

post #1 of 6
Thread Starter 
Hey there, I'm having a bit of a problem with my 8320 overclock. For some reason if I set my frequency to 4.2GHz or higher, frequency will drop to 1400MHz, multiplier drops to 7x and vCore drops to 0.9v. This only happens under load.

My temperatures are fine: 52C max @4.2GHz / 1.33v . However, there's one reading labeled "CPUTIN" that gets above 60C and around 68C max. Not sure how significant or accurate this actually is. Also, I'm not getting any readings for core temps, just "Package" temp.

Of course I have all BIOS power saving features, etc. disabled (C1E, CnQ, C6E, EHS, thermal throttle, spread spectrum, TCC, APM). Other BIOS settings include 200MHz bus freq., 2200MHz NB freq., 2400MHz HT freq., and 1/2 CPU LLC.

Also worth noting, I previously had an FX-4300 running at 4.8GHz stable with the same motherboard and PSU.

Anyone has any idea what's going on here? confused.gif

EDIT: What I did was I upgraded to an 8320 and I also switched my 7850 for a 580. I'm mentioning this because maybe my PSU is not enough for this configuration? I guess when overclocked it might not be optimal, thus causing the frequency to drop under load?. Can't really confirm this until I get my hands on a power monitor.
Edited by Trull - 5/31/13 at 8:40pm
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post #2 of 6
ASRock 970 Extreme4 is not really design for ocing a 8320 and a 8320 @ stock uses way more power the a 4300 @ 4.8ghz. You can disable 1 core per module and have fun.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post

ASRock 970 Extreme4 is not really design for ocing a 8320 and a 8320 @ stock uses way more power the a 4300 @ 4.8ghz. You can disable 1 core per module and have fun.

But still... it should be able to push it, no? worriedsmiley.gif
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Gud
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post #4 of 6
Quote:
Originally Posted by Trull View Post

But still... it should be able to push it, no? worriedsmiley.gif
Your VRM protection is throttling it down. If you can put a fan on it.
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post

Your VRM protection is throttling it down. If you can put a fan on it.

So "CPUTIN" is VRM temp?

You think adding 2 intake fans to the case will help it much (currently have no intake fans, just 2 top and 1 rear exhaust)? Or do I need a fan directly on top of it?
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Gud
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post #6 of 6
Quote:
Originally Posted by Trull View Post

Hey there, I'm having a bit of a problem with my 8320 overclock. For some reason if I set my frequency to 4.2GHz or higher, frequency will drop to 1400MHz, multiplier drops to 7x and vCore drops to 0.9v. This only happens under load.

My temperatures are fine: 52C max @4.2GHz / 1.33v . However, there's one reading labeled "CPUTIN" that gets above 60C and around 68C max. Not sure how significant or accurate this actually is. Also, I'm not getting any readings for core temps, just "Package" temp.

Of course I have all BIOS power saving features, etc. disabled (C1E, CnQ, C6E, EHS, thermal throttle, spread spectrum, TCC, APM). Other BIOS settings include 200MHz bus freq., 2200MHz NB freq., 2400MHz HT freq., and 1/2 CPU LLC.

Also worth noting, I previously had an FX-4300 running at 4.8GHz stable with the same motherboard and PSU.

Anyone has any idea what's going on here? confused.gif

EDIT: What I did was I upgraded to an 8320 and I also switched my 7850 for a 580. I'm mentioning this because maybe my PSU is not enough for this configuration? I guess when overclocked it might not be optimal, thus causing the frequency to drop under load?. Can't really confirm this until I get my hands on a power monitor.

Your board is most likely the problem. I believe the only 970A chipset board that has 8+2 power phasing is the Gigabyte GA-970A-UD3. But your power supply could be a problem if you overclock that 580 and 8320 too much. Both of them are power hogs and putting them both on the same 520W psu while overclocking is asking for trouble.
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