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Questions about fx 8320

post #1 of 16
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I bought an 8320 the other day and have managed to OC it to 4.2 ghz but unfortunately I had to push the voltage to 1.475 to get it stable. Is this normal? Also, I saw that the reccomended max temp for these CPUs is 62c core and 72c for the socket, which one of these does HWmonitor display as CPU temp?
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post #2 of 16
Quote:
Originally Posted by Deadboy90 View Post

I bought an 8320 the other day and have managed to OC it to 4.2 ghz but unfortunately I had to push the voltage to 1.475 to get it stable. Is this normal? Also, I saw that the reccomended max temp for these CPUs is 62c core and 72c for the socket, which one of these does HWmonitor display as CPU temp?

Hw monitor displays the socket temp as cpu temp. Fill out rig builder with your specs on your profile. That seems far too much volts for a low overclock. What is the vid of your cpu? the stock v/core
post #3 of 16
When overclocking did you disable all of the power management features in BIOS? What is your motherboard? what kind of cooling do you have?

We will be much better equipped to help you if you fill out a sig rig from your profile page.
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post #4 of 16
Thread Starter 
There I added my rig in my sig so check it out. Thanks guys. And yes all the power saving crap is disabled and LLC set to 75% because I had some vdroop. I try and OC but when I test the stability my computer freezes and has to be hard reset. I thought it was because of not enough voltage but I kept cranking the voltage and kept getting freezing while testing with OCCT within 30 seconds. Heat is not the issue I can tell you that now.
Edited by Deadboy90 - 1/22/13 at 10:53am
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post #5 of 16
Quote:
Originally Posted by Deadboy90 View Post

There I added my rig in my sig so check it out. Thanks guys. And yes all the power saving crap is disabled and LLC set to 75% because I had some vdroop. I try and OC but when I test the stability my computer freezes and has to be hard reset. I thought it was because of not enough voltage but I kept cranking the voltage and kept getting freezing while testing with OCCT within 30 seconds. Heat is not the issue I can tell you that now.

I know it might sound silly but have you tested your set up at stock? I would reset to optimised defaults, get rid of that 75%llc as you may not need it, check your temps under load, especially your vrm area which I think is cputin under hw monitor and report back. Find the vid of your cpu, ie the vcore it requires stock, this is listed in core temp, Im not up on your board without researching it, look up the power phase ie, 4+1 , 8+2 etc
post #6 of 16
Thread Starter 
Quote:
Originally Posted by Ghost12 View Post

I know it might sound silly but have you tested your set up at stock? I would reset to optimised defaults, get rid of that 75%llc as you may not need it, check your temps under load, especially your vrm area which I think is cputin under hw monitor and report back. Find the vid of your cpu, ie the vcore it requires stock, this is listed in core temp, Im not up on your board without researching it, look up the power phase ie, 4+1 , 8+2 etc

Yea I decided to reseat the processor and start again last night. The MOBO supports up to 140 watt processors and power phase is 6+2. (I really dont know what power phase means though.) I set everything to auto and stock with only the powersaving crap disabled. At the LLC auto and clocks at stock I ran OCCT and it was fine, the only problem was that I had vdroop, the voltage went from stock, about 1.39 to bouncing around below 1.34. I then set LLC to 100% to get rid of that Vdroop and immediatly my computer froze when I tried to run OCCT. I then set LLC to 75% and vdroop was gone and voltage was at stock with no freezing whilt I ran OCCT. So I then tried some OCing and with a bit of a voltage boost (from 1.39 to 1.40) I was able to get stable @ 4.1ghz. However if I tried pushing it any farther and ran OCCT i would get the same freezing I saw with LLC set to 100%. I then reduced the clockspeed to 4.0 and got the same freezing! doh.gif
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post #7 of 16
The vcore of 1.4 is not really that much for 4.4 - 4.6 the area will be somewhere round 1.44 - 1.46 I think. for example my chip takes more vcore than your per se. 1.38 will get me up to 4.2 to 4.4 will need big jump to 1.46 and I run 24/7 at 4.7 with 1.47. Your power phase is good for overclocking I think so will most likely be vcore tweaking. You are safe up to 1.5 if your cooling stays within thermals.

have you set your ram to matching the speeds on the sticks? and start with just a multi overclock firstly, when you find the right combo of vcore/multiplier you could then try the base clock. If you find no luck with just the multi try with the bus but watch your ram speeds

I was pm with an ocn member earlier with an fx8320, his board has no llc and was using 1.53 for 4.7 dropping to 1.47 under load
Edited by Ghost12 - 1/22/13 at 2:09pm
post #8 of 16
Thread Starter 
Ram is at stock speed and timings and I don't think it's a lack of voltage, when that's the problem OCCT stops and makes that stupid duck noise. I just need to find out what's causing this freezing.
Edited by Deadboy90 - 1/22/13 at 2:21pm
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post #9 of 16
Quote:
Originally Posted by Deadboy90 View Post

Ram is at stock speed and timings and I don't think it's a lack of voltage, when that's the problem OCCT stops and makes that stupid duck noise. I just need to find out what's causing this freezing.

As no one else seems to be helping as yet I would re-post in the vishera/piledrivers owners club. Someone there may have the same board and set up

http://www.overclock.net/t/1139726/amd-fx-bulldozer-piledriver-owners-club
post #10 of 16
I had a kind of similar weird thing with my 8320.

VID is 1.3750 but it idles at like 1.3620 and would go to 1.391 under load, so I lowered my VCore such that it was as close to 1.375 at load (this is with 75% LLC) and that was just 1 tick down on voltage. So it would peek at 1.380 (is it just rounding off 1.375?) and this helped temps just a bit. I then started overclocking and when I was at 3.7 ghz I went to reboot for my next multiplier and Skype "crashed" by accessing memory out of its bounds.

So I put my voltage back up 1 tick (so my VCore matched VID) while also going to the next multiplier. I got to 4.2 so far and have not had to touch the voltage again. So, 4.2 with stock volts - but slight overvolting with LLC.

Whats similar and weird? Before I did this method, I tried to up my voltage to what the CPU was running under turbo; something like 1.41v I was seeing when it was turbo. I tried to boot at 4.0 with a VCore of 1.40 and I had some graphic artifacts on the BIOS screen, I said that's no good and upped the VCore to the next tick, it booted. Point is, pre-emptive increase on the VCore caused problems for me. I am now running 4.2@1.375 when I was having problems with 4.0@1.40. So I say 1) lower your VCore until your LLC makes your load voltage as close to VID as possible 2) up the multiplier by 0.5 until unstable 3) only increase voltage 1 tick when you find you are not stable 4) repeat #2 and #3 until you hit your thermal limit (62 core / 70 socket, I believe). Ghost mentioned it, but its generally better to start with only doing a multiplier OC at first.

I also recommend using the BIOS to OC when trying to find stability. I have all settings on auto (except turbo/power saver stuff disabled) for my cpu and the only manual inputs are VCore and Multiplier. My LLC is Ultra High CPU, High CPU/NB.
 
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