FX 8320 Overclock - Bus Frequency or Ratio.

[JOOK-D]

Hi all,

I've been searching for the answer to this (most likely very simple) overclocking question. From what I've read there are a few ways to go about overclocking; CPU Ratio or CPU Bus Frequency, most likely a mix of the two.

From following a tutorial on doing it through Bus Frequency I got the following results:

CPU: 4300MHz
Mem: 1432MHz
NB: 2365MHz
HT: 2580MHz

CPU Ratio: 20.0
CPU Bus Freq: 215
Voltage: 1.443

Socket: 66C
Core: 44C

Stable for 20 mins on prime95. Cool n Quiet, C6 etc. disabled.

From what I've read from other people OCing they don't even need anywhere near as high a voltage as that. What am I doing wrong? Do I just need to bump the multiplier and leave the Bus Frequency as is? Looking to get to 4.4 - 4.5 GHz.

Any help is appreciated, cheers. My specs are in my sig.

Update:
Since then I have reset to optimised defaults and reached 4.2GHz stably @ 1.4125V. Now I have an issue whereby though my use of manual voltages I cannot enable AMD cool'n'quiet or C1E. They just disappear from the BIOS. Thoughts?

 

[Kingbob]

I'm running my 8350 at about 4.5GHz with a slightly lower voltage.
I completely avoided NB and HT overclocking all together. It was screwing with my RAM speeds and I was getting the BSOD. So basically I have just my voltage and multiplier overclocked. One more thing I did was adjust some advanced mobo power control settings. I have a more expensive model of your mobo but I assume you have the same BIOS that I do. The only big difference being that your mobo probably wont overclock quite as well because it is not made to handle high voltages as good as a $170 board. Not sure if this will help you at all but hopefully you will find something useful from it!

 

[Kingbob]

This picture shows some of the settings that will give you more efficient overclocks. Note, they can damage your mobo (since it is not a high end one) if you up them too much. http://img.clubic.com/04254398-photo-asus-p8z68-v-pro-bios-12.jpg

 

[JOOK-D]

Yeah since this post I've reset to defaults and got a stable 4.2GHz multiplier overclock with a voltage of 1.4125. However, now I have a different issue (of course)!

Overclock is stable but when my voltages are set to manual and not offset my options for C'n'Q and C1E disappear from the BIOS. So I now have a stable overclock, that I can only run at full speed. -.-"

Thanks for the reply. Any suggestions?

 

[Kingbob]

Here is a thread about 8350 overclocking. You'll find it interesting and helpful:
http://www.tomshardware.com/forum/282505-29-8350-examples

Haha sorry if it seems like im posting a lot. I just ordered a 240mm water cooler so I'm interested in getting to 5GHz and I'm finding this stuff usefull too.

 

[JOOK-D]

Not a problem, any suggestion helps. I just can't figure out why it won't let me use C'n'Q and C1E just because I'm on manual voltages. :S

 

[JOOK-D]

Figured it would be something like that. 🙁

Guess I'll have to learn to use offset then. Since my current voltage on offset is 1.39V at stock and I need 1.4125, I would just add 0.0225 into the adjustable field?

Thanks for the reply.

 

[JOOK-D]

Yeah, stock was 1.39V (high?). I'll do it in the morning as its 12am in the UK :lol:

I'll report back here then.

Thanks again.

 

[JOOK-D]

Alright so I set it to offset and just left it on auto (safe?) @4.2GHz, and I'm stable in prime for an hour. Cheers.

Going to try and drop the voltages a bit, see if I can get them lower and be stable.

 

[JOOK-D]

Alright, a few questions about offset mode:
What's the difference between + and - modes? I assume '-' allows you to undervolt (and underclock), although I'm unusre as to how - does any value entered automatically become negative and subtract from the voltage?
For LLC I only have a few options: CPU LLC (Auto/Disabled/Enabled) and CPU/NB LLC (Auto/Disabled/Enabled). Any idea as to what I should set it to? Currently have it on auto, although once again I'm not sure if that is how it should be.

Thanks again.

Update: Since I've been stable @ auto voltage on prime95 at 4.2GHz I can't apply the power saving features without failing in prime95 when testing with them on. Going to try applying them one at a time and see what the problem is. :S

Final update: Applied them one by one and it's now stable.