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Asus P8Z68-V Pro Double boot problem - Page 4

post #31 of 45
I did boot into windows at 5049mhz with overvoltage disabled. Had cpu capability on 140% phase extreme LLC on high or ultra high and voltage 1.41-1.42.
post #32 of 45
Quote:
Originally Posted by TerrabyteX View Post

I did boot into windows at 5049mhz with overvoltage disabled. Had cpu capability on 140% phase extreme LLC on high or ultra high and voltage 1.41-1.42.

Heh, amazing, I never get a good component. My i7-2600K runs at 4.80 GHz but that's at 1.460V with Ultra High LLC. Any less than this and BANG, here come the BSODs! smile.gif
    
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post #33 of 45
My Gen-3 Z68 board does this too, smh
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post #34 of 45
Thread Starter 
Right, I thought I better update on my situation. I've managed to get all my real life stuff back on track so I'm back to testing my rig now.

At the moment I have disabled my PLL Overvoltage and ran a quick stress test to view the CPU voltage. Both Overvoltage enabled and disabled give me the same CPU voltage. I'm going to run with the PLL Overvoltage disabled for a while, doing my day to day activities and I'll report back on anything I notice in regards to double booting and also stability.

I also want to update my bios at some point but I think that might have to wait to next weekend at this rate.

Quote:
Originally Posted by BLACKBIRD002 View Post

My Gen-3 Z68 board does this too, smh

While I am happy to hear that even newer boards are exhibiting this problem, I am also to an extent somewhat upset that the issue hasn't been resolved. I know that P67 boards did have the issue, but threads I've read seem to suggest the general fix for them was to enable power on by PCI-e.


----EDIT----

Found this to be quite interesting after disabling PLL Overvoltage

284

Real Temp 3.6 - shows my core speed to be fluctuating quite wildly between 1600mhz and 4500mhz

CPU-Z - shows my core speed to be at a stable 1600mhz

Intel Turbo Monitor - shows core speed in economy / energy saver mode (unknown speed)

Anyone got any idea as to why the three programs are showing different speeds?
Edited by 5nak3 - 12/4/11 at 5:42am
post #35 of 45
1.) Enter Bios/Advanced mode - Under "Advanced" tab go to "Onboard Devices Configuration" and under the JMB storage controller disable the "Display OptionRom in post"

2.) Go to Boot and under OptionRom messages change from "Force Bios" to "Keep Current"

Done.
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post #36 of 45
Thread Starter 
Well after two days after making the change and disabling PLL overvoltage, I've had no double boots and I also haven't had any stability issues during my day to day running. I will keep an eye on the issue and will report as and when I have more information smile.gif

Quote:
Originally Posted by xSociety View Post

1.) Enter Bios/Advanced mode - Under "Advanced" tab go to "Onboard Devices Configuration" and under the JMB storage controller disable the "Display OptionRom in post"
2.) Go to Boot and under OptionRom messages change from "Force Bios" to "Keep Current"
Done.

xSociety, could you explain what exactly your settings are doing? I've actually disabled the JMB controller completely as I don't use it.

Thanks.
post #37 of 45
Quote:
Originally Posted by 5nak3 View Post

Well after two days after making the change and disabling PLL overvoltage, I've had no double boots and I also haven't had any stability issues during my day to day running. I will keep an eye on the issue and will report as and when I have more information smile.gif
xSociety, could you explain what exactly your settings are doing? I've actually disabled the JMB controller completely as I don't use it.
Thanks.

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post #38 of 45
Thread Starter 
Quote:

Cheers thumb.gif
post #39 of 45
Good to hear you got it sorted 5nak3.

I tried the same thing tonight and got very different results.

To recap, i have this double post issue with an asus p8z68-v board and when it occurs, it results in windows hanging on the loading screen. This double boot happens randomly, doesnt do it at all for a week then does it every other time for a while and so on..

I disabled pll overvoltage tonight and it results in windows hanging on the loading screen every single time. Enable it, and no probs. So this is making me think of a few different things...perhaps someone can help rule these in or out..

My voltage is at about 1.385..should this be raised, I have seen alot of folks who have overclocked to 4800 with 1.4 voltage.. could this be a contributing factor?

Also, I installed windows 7 when the system was at stock settings...the hanging only occured after the oc was applied. Stability is not an issue for me, system runs fine. It is the boot cycle that triggers my problem. Should I consider reinstalling windows 7 with the oc applied..would this/could this make any difference?

The fact that the problem is triggered every time when pll overvoltage is disabled should hopefully help to narrow this down.
Edited by xeno666 - 12/8/11 at 1:33pm
post #40 of 45
Thread Starter 
Hmm sounds to me that the OC is not stable. Have you managed to pass a 12 hour Prime 95 test? It seems to me everyone around the OCN forum hold this to be the stability confirmation boundary.
If you haven't done so I'd start with that.

You say that if the system is at stock settings you dont have this problem at all. I've just had a quick skim through the thread and haven't seen you mention your settings at all, so I don't know how much of an OC you're running with. But when I've ran into windows hanging it have been because of two problems:

1) GPU drivers / card faulty, when windows tries to load the GPU drivers it would hang and once I changed my card and reinstalled the drivers it has worked flawlessly ever since.
2) Unstable OC that wont allow the user to boot into windows.

Any information on the OC itself will be very helpful as it will allow others to get an insight into your system and your setup.

In your case, I would probably return everything to stock and see how I get on with the booting and double posting. If I see that when on stock everything is ok, I'd start OC'ing. Start with something tame like 4.3Ghz, see if you can post and login without any problems, and slowly work up from there.

As mentioned elsewhere in the thread the PLL Overvoltage helps ensure stable overclocks at higher speeds, but it is recommended for it to be disabled. When I set up the OC as it was my first time OC'ing I ran with the PLL Overvoltage enabled. I was somewhat hesitant to turn it off, but the double posting because a massive issue for me.

The Asus bios has a number of other functions as well, and I found the following link useful when setting up my OC.
Maybe if you have a read through that, and work from stock back up to your desired OC you'll get your system stable.
Quote:
My voltage is at about 1.376..should this be raised, I have seen alot of folks who have overclocked to 4800 with 1.4 voltage.. could this be a contributing factor?

In regards to the voltages, each chip is very different. One might work perfectly with 1.376 another may need 1.4. From all my readings on the subject, you can increase voltages, but you are going to see a heat increase. If your cooler can keep the temperatures at a good level and you are not exceeding the recommended voltages then increase the voltage as the chip may simply need more volts.
I am no expert on this part at all. My rule of thumb on the matter is that if the temp is ok, and the system is stable then I must have my voltages near enough correct. The only way you can really find your correct voltage is to do a bit of trial and error, change voltages for a certain speed, run a few stress tests and see how the computer reacts.

But I think the first thing you need to establish is a stable OC and then from there you can begin to tinker in relation to higher multipliers, voltages, and other settings.

Hope this helps you somewhat smile.gif
Edited by 5nak3 - 12/8/11 at 1:48pm
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