P67/Sandy Motherboard Dual/Double Triple POST/Boot Issue

I have been messing around with my new Sandy Setup and this is one of the pesky issues that have annoyed me recently. I googled this and found that there’s a heap of users complaining about it on the internet. ASUS, ASRock, Gigabyte etc are all affected by it. This probably means that it has something to do with the chipset and not the board manufacturer. This is not an Overclocking tutorial, this is a fix only.

If you’ve reached this post then you already know what the issue is but if you don’t, well, here’s some detail on it.

P67 Motherboards tend to Double Boot on every cold start once you mess around with the Overclock settings. This could be any settings, as far as I’ve seen. If you change the CPU OC profiles or the DRAM OC profiles. One of them will cause the double boot to occur. Some people are a bit unlucky to have triple boots and it is definitely annoying as hell.

Now, I won’t go into details of what solutions others have provided for this problem. But I found that, it happens when my CPU BCLK is nudged over “100“. This is caused by using ASUS’s AI Suite II‘s built in Overclock Tuner or an Overclock profile. For my case, it was always nudged to “103“.

The DRAM frequency is also affected by the BCLK and you’ll see strange numbers as “1648” instead of “1600” or “1800” in the Bios profile. This is exactly what causes the Double and Triple boots. Well, at least for me.

Here’s teh solution that I’ve tried 3-4 times after messing around with the settings again and again and it works. Before you start, here’s a couple of things, you might wanna take note of.

If your system is Overclocked and is stable, notice all the settings in the bios. If you’ve used an overclocking suite, like the one provided by ASUS, then you should note what settings it made in the bios. DRAM timings, CPU settings, Voltage etc.
Upgrade your bios if you haven’t already. Should get this out of the way as well.

Let’s move on to the real deal:

Go into your bios and load optimized defaults. This should reset the system to factory defaults.**_

_** 2. Save and reset system and then shutdown the system. 3. Now reset your CMOS. You’ll need to consult your Motherboard’s Manual for that. Mine was at the back panel (ASUS). 4. Once you’re done with that, start up your system and go into your bios. 5. Find settings for “Onboard Devices” and look for “JMicron and Marvell” etc. You should see they have options under them called “Display OPROM” or “Display OptionROM in Boot“. Just disable those. All of them. You don’t need them for now.**_

[<img class="alignnone size-full wp-image-421" title="oprom" src="https://blog.tabinda.net/wp-content/uploads/2011/05/oprom.jpg" alt="" width="686" height="571" />][2]

_** 6. Move on to your CPU Overclock page and start entering values for overclocking. DO NOT CHANGE ANY OPTION FOR DRAM RIGHT NOW 7. While you’re entering OC settings, Make sure you never change the BCLK, Keep it “100”. That’ the gist of it. 8. The Turbo or CPU Multiplier should be 45-50, depending on what processor you use and how much your system can Overclock. 9. Once you’ve completely entered all of the Overclock settings. Save settings in bios and reset.

If your system is running fine, test your Overclocks. You can then return to the bios and change your DRAM profile. Notice that it should be a square number now. 1600, 1800, 2000, 2100 etc. Pick whatever you feel is suitable for you RAM. Enter the RAM timings, voltage etc and save settings in the bios.

Shutdown or restart the system and you shouldn’t have any more double or triple boots. Let me know if this works for you people or not as well.

[2]: http://blog.tabinda.net/wp-content/uploads/2011/05/oprom.jpg