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***official amd 83x0 overclocking thread***

Just got the Crosshair V Formula-z and Bios UI is a bit different to the one im used to on the m5a99x R2.0 and i knew that motherboard like the back of my hand and best stable overclock without adding to much Voltage was 4.7ghz. If anyone can give me the basics of this new one i would appreciate - i will not be happy unless i get 5ghz stable!
 
ALXAndy said:
I was given some advice the other day from a mate of mine who is a bit of an expert with overclocking and he basically told me (this was for my Xeon but I would imagine it's similar in practice to AMD) that I should lower my mutli to the lowest setting (this is a Xeon 1366) and then start cranking the bus at 5mhz intervals. Once I fail to post or get into Windows take the highest stable setting and then start working on the multiplier.
Click to expand...

The above is the guide I've been using, all credit going to ALXAndy. Basically:
  • Reset everything to stock
  • Put multiplier as low as possible (on the crosshair its 4x)
  • Raise bus frequency 5Mhz at a time until windows fails to load
  • Go back 5Mhz to the last frequency that windows will boot from
  • Raise multiplier to get desiered frequency
  • Add voltage for stability (dont go over 1.5v is the general rule)
  • OC ram and north bridge to desiered levels (based on what ram you are using)

In terms of what settings I have used to get 5Ghz, here they are:
CPU: 5.15Ghz (Bus: 270Mhz; Multiplier: 19x) @ 1.5v
North Bridge: 2700Mhz
RAM Frequency: 2160Mhz; 11-11-11-27-1T Latencies @ 1.65v
LLC: Ultra High; All current capabilities set to 130%
All energy saving modes set to disabled

This was stable for gaming, but not for prime95. It also ran very hot, so I have since gone back down to (only) 4.82Ghz as this only needs 1.42v :)

Do you really need me to screenshot? It is all on the start page, apart from the DIGI+ power control (to do LLC and current capability) which is a shortcut half way down the page
 
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Well for some reason im finding it hard to get it stable at 4.9/5ghz! I managed to get it stable at 4.8ghz with 1.42V - 10mins with AIDA64 stability test no problems! Temps avg was 44C - here is a link to my settings: http://s129.photobucket.com/user/PipsonFM/library/Crosshair OC - Any advice on changes i would appreciate it - i couldnt get 4.9 stable with 1.5v which is shocking :S considering i got 2.8 at 1.42v
 
That all looks ok. Set your ram to stock settings while getting your oc ready, can mess it up sometimes.

I have extreme OV on, no idea why, seemed like a good idea at the time :D

What temps were you getting/what cooler are you using while using 1.5v? That may have been the problem. At 5Ghz, mine certainly was running right on the edge of scary (65C!).

Also, as above, and as the helpful guide I posted says, try clocking with the fsb/bus as it does tend to give better results!

Edit: Have tried to give you some screenies :)
Edit 2: Yay, managed to make it work! And done my first spoiler tag :D

image_zpsf538c200.jpeg


image2_zps66b6cc56.jpeg


image1_zpsf511e34e.jpeg

Just a reminder that this is for my current OC which isnt 5Ghz. However, the only difference is the multiplier and voltage!
 
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Sorry for the thread revival

Going to venture into OC'ing 8320, it is currently sat on an M5A97 Evo R2.0 board with an EVGA 750W G2 PSU.

Any tips, I have never OC'd manually before, used an ASUS OC utility but the computer kept crashing so I'm guessing it was unstable.

Would like to get the CPU to around 4.5+ if at all possible.

It has probably been doing in this thread but I cba lookin through 97 pages to find it.

Any help would be brilliant as I have no idea tbh
 
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