Overclocking on Crosshair V Formula

[billy_dexd]

Hi,

I have a Crosshair V Formula and a Phenom II X4 970BE. I was able to OC from the stock freq., 3.5GHz, to 3.91Ghz by just messing with the multiplier and the CPU Voltage. I have a multiplier set at 19.5x and the voltage set at 1.465. My max temp under a 100% load is 47 'C. Also, I have NB Frequency, HT Link, RAM set to Auto, and I disabled all the power saving features because I wanted to get those out of my way. I'm stuck at 3.91 GHz; I can't not go any further. Even at 1.5 volts, I can't get it to run stable at 3.99 GHz. Now, I have been looking through many forums on the internet. I saw that many people can get this Phenom X4 970BE to even 4.1 GHz or 4.0 GHz easily. So, I would like to ask people who are good at OCing give me suggestions on how to do that.

Best wish.

[speed]

Not all cpus are the same even if they are the same cpu if you get what I mean. You may be at the max that that cpu will do. All you can do is play with it and take small steps. Log ever thing you do so you know where you have been and where you are going. An upgrade to a FX 8150 may be what you need. Most get 4.5 out of them easy on air.

[RangerXP]

You might try taking out one of your dissimilliar ram kits. Memory issues are the most likely culprits. That or more ram voltage. Then there is the old - take everything off auto and start setting your voltages manually. Many auto settings will not function at higher clock rates. For instance - for me to get 4.0 stable on my 1090T I need to push 1.48125v on Vcore and set my freq: 1600 / 2600 / 2200 (mem/nb/ht) with NB:1.23125 v . you can start to get snappier performance by bumping up the NB freq to 2800/3000 as you add more voltage to the NB: from 1.23125 to 1.25, and 1.26875 respectively. As you increase the speed of the CPU you also have to bump up other freq. to stabalize at the higher clock rate. Like said before - start writing everything down. Note what works and find your baselines. I have post-its all over my monitor 🙂

I also like to use the OC Profiles. A great way to save settings for testing from known good place.

[speed]

RangerXP wrote:
You might try taking out one of your dissimilliar ram kits. Memory issues are the most likely culprits. That or more ram voltage. Then there is the old - take everything off auto and start setting your voltages manually. Many auto settings will not function at higher clock rates. For instance - for me to get 4.0 stable on my 1090T I need to push 1.48125v on Vcore and set my freq: 1600 / 2600 / 2200 (mem/nb/ht) with NB:1.23125 v . you can start to get snappier performance by bumping up the NB freq to 2800/3000 as you add more voltage to the NB: from 1.23125 to 1.25, and 1.26875 respectively. As you increase the speed of the CPU you also have to bump up other freq. to stabalize at the higher clock rate. Like said before - start writing everything down. Note what works and find your baselines. I have post-its all over my monitor?

I also like to the OC Profiles. A great way to save settings for testing from known good place.

Very true about the ram did not even notice he had 2 differant kits. I did not know that OCZ made sli ready ram for DDR3 never saw it before. I know they went out of the ram game a while back and some of the last stuff off their line was garbage. I had 3 rma's from them around that time. Anyway get your self a 4 or 8 gig kit of ram that is factory matched to run together. That will get you into the 4.0's

[billy_dexd]

Thank you for your suggestions. I will try to use only one kit first before I decide to buy another kit. And, just wanna make sure, I don't have to mess around with the CPU or CPU-NB Load Line Calibration and the CPU Over Current Protection, right?

[speed]

you should read this--->http://rog.asus.com/forum/showthread.php?2585-ASUS-Crosshair-V-Formula-BIOS-Guide-Overclocking&count...

and this---->http://rog.asus.com/forum/showthread.php?3468-Crosshair-V-Formula-Easy-Memory-Setup-Guide&country=&s...

[NemesisChild]

Yes, don't mess with the Digi+/VRM bios settings for now, leave them at default.

[Dark]

I was just about to say ram but someone beat me to it yes change ram having two kits is bad for oc at most times always stick to just one kit to get best overclocking im sure if you had a better kit youll get past the 4 mark easy. as for the Phenom II X4 i have been reading that ppl have pushed it to 4.3 on the Crosshair V easy

[billy_dexd]

Thank you for your help everyone. I'm now running at stock frequency because it is above 80'c during the day in Orange County, CA, soI don't want to warm up my room any further. I will let you know when I get a chance to OC again.

Best wish.

[billy_dexd]

Hello everyone. I tried to use only a 2 x 2GB Potrait Matrix memory kit. Still, I got no luck. I couldn't get it to 4 Ghz even with the Vcore @1.5v, and the NB Freq was at 2600 Mhz, 1.4v. I think this is the limit of my chip, so guess I will have to accept the fact. Thanks you all again for helping me.