Overclocking my 990X

[StreekG]

Hi guys,

I am trying to read up as much as i can on threads and guides to OC'ing my CPU, and also understanding all the settings you can play with.

So far i've got the CPU running at 4ghz with a simple upping of the multiplier to 30x. Its a bit hard to find anything 990X specific but from what i have read one site said that with these CPUs play with the BCLK as little as possible and more with the multi (being an unlocked one) and vcore (accordingly)

I ran a prime95 test on 4ghz and after about 40 minutes the highest temp i got was 61. Sounds good so far with my NZXT Havik 140.

I want to see if i can run 4.4 or 4.5 but anything higher than 4 i probably need to start fiddling with the voltages.

My main question is understanding how much to increase voltages etc according to the frequency.

All the sites i've seen pretty much just told you their settings, so im not going to just use them, i want to understand these settings and apply my own.

If anyone can help me out this would be great.

 

[dugdiamond]

get a better cooling solution before going higher - or it could be an expensive mistake

 

[StreekG]

Well i just upgraded to the NZXT and its a pretty nice cooler.

 

[S1EJ0]

You only find out by playing with the settings. Increasing frequency until unstable then adding voltage to stabilize!

 

[StreekG]

I have been running at 4.2 now with 1.325 vcore and prime has been fine, but im running small FFTs for about 10 minutes now, maximum core temp so far is only 54, is there something im doing wrong or is this normal??

Also i selected 1.325 vcore in BIOS however CPU-Z shows that its 1.248

 

[S1EJ0]

You need to enable load line calabration in BIOS, this will then hold Vcore to what you set it at as what you are seeing is vdrop and vdroop.

With LLC enable your should be able to run 4.4GHz with 1.325V.

Also you need to run prime alot longer than 10mins to prove stability. I tend to use a mixture of LinX/IBT and prime to stabilise.

 

[kilobravo]

Hi StreekG

Have a look at this thread,specs are different,but its essentially the same(x58).I learned to OC,from this thread,and so did manny other ppl.

http://forum.overclo...page__hl__arfur

We need more info,to help you .

Edit:SieJoe mentioned Linx(linpack),here is a link for it Linx

When installed,it need admin rights to run,right-click linx-icon and run as admin.

There is a flipdown menu for ram,select 1024mb ram to start with.

 

[StreekG]

Yeah i know i need to leave it longer its just when i tested it with 4ghz and no voltage adjustment it was running hotter after the same amount of time.

Hi kilobravo what kind of info do you need???

Thanks for the link

 

[kilobravo]

Yeah i know i need to leave it longer its just when i tested it with 4ghz and no voltage adjustment it was running hotter after the same amount of time.

Hi kilobravo what kind of info do you need???

Thanks for the link

If you read the thread carefully and follow the steps taken,you will learn it in 24h.

To have a stable system may take some time longer

To start with,i recommend ram running 1600mhz @ 1.3-1.34v qpi/vtt.2000mhz need some high volts on qpi,and will give you more greyhair fast

 

[StreekG]

i have 2000mhz ram.

So far prime has been running for an hour, and its going well. It's reached a max temp of 63 but its been sitting stable at 60 max for about 10 minutes now.

Going by the thread i should be testing it on Large FFT maximum heat, is this correct?

I will download LinX, im guessing you dont run them both at the same time.

 

[kilobravo]

One only,never tried to run both at same time .

 

[StreekG]

4.2ghz was running fairly well. 1 hour of stress testing and no errors, stable at 60 for a long time but maxed at 63 at one stage.

I upped the frequency to 34x multi making it 4.53ghz, and also changed the load line calibration off Auto, however i dont have a simple enable or disable option for it, i have: Standard, Level 1 and Level 2 as well as Auto.

So i made it Level 2, im showing 1.312V, still lower than the 1.325 i selected.

The PC crashed after 2 minutes of Small FFT testing at 4.53 ghz.

I lowered the multi to 33x making it 4.4. So far so good.

My guess now is that if i want to run 4.53, i need to up the voltage a little bit more, am i right in saying this???

 

[S1EJ0]

You'll need slightly more Vcore for 4.5GHz possibly more CPU PLL voltage too.

 

[StreekG]

Well so far i've done small FFTs, large FFTs and blend, all for about an hour each, temps have been really good.

I will have a crack at 4.5ghz tomorrow and report it all, i have also been validating my CPU-Z on each occasion as well as taking screenshots of my temps

 

[StreekG]

Hey guys i've just noticed every now and then i'm getting a quick little beep coming from the PC, not sure what it is. Since playing with the OC, it just did it now, and about 5 minutes ago.

 

[StreekG]

Hey guys,

I am trying to get it running stable at 4.66, no luck however.

At 4.53 the Vcore was 1.331 in BIOS. And and a 34 multi.

Now at 4.66 the computer crashes when windows opens, or when i try to do a stress test.

Not sure what to do, i've tried increasing the vcore slighty, it was crashing with 1.35V

I get a blue screen crash dump error.

I still have everything else at stock voltages except for Vcore.

I also dont have an enable or disable function for Load Line calibration, i only have

Auto

Level 1

Level 2 (set on level 2)

 

[imar]

Hey Streek, I have a 990x with 2000mhz ram also and im not sure where you read that you shouldnt touch the base and pump the multi, but i would try different combinations, as well as read the guide that was posted earlier in the thread. I managed to get my 990x on stock cooler to 5ghz enough to get a cpu-z capture then fail 10 minutes later while browing pretty easily albeit at high volts (1.54v). Find out the highest BCLK YOUR CPU will hit then play around with it that way. There are lots of guides on the internet to do this. Getting it stable at 4.6 isnt that hard, however will run quite toasty on air. Ive later purchased the XSPC rasa 360 kit on mine and its an epic difference in temps and i can easily get it running stable on 4.8 all day long. I noticed in the rig gallery you mentioned multi at 30 to hit 4ghz, i would stick to the 200x20 standard that most people use to get to this point etc..

Some more experienced users might be able to add, but i dont think your going about the OC right by just upping volts and multi, sounds off to me, but thats what this OC stuff is all about, tinkering learning and enjoying !. Good luck with it mate !

 

[StreekG]

Thanks, its a pain trying to get it right, from what it seems, as soon as you play with the blck everything else changes with it, i have to take voltages off Auto, change RAM voltages etc. I'm still unsure of the QPI volts etc so its a slow curve for me.

I'm trying to figure out this random beep i keep getting while im browsing around windows, i get it usually when the PC is doing something.

 

[imar]

ive actually got pretty much the same setup as you do. Never had the beeping problem on my PC. Its comming from the soundcard i assume not the internal speaker right, like a windows beep ?

 

[StreekG]

Nope, internal speaker it sounds like. I've posted in my other thread in this section, about a random beep. I'm leaning towards re-installing windows, its pissing me off. It doesn't crash or anything, just a random beep.