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Can't get stable overclock. Same CPU, memory, everything... just a slightly different Motherboard [MSI X99A Krait Edition]

post #1 of 10
Thread Starter 
Hey everyone, I was getting a stable 4GHz on my MSI X99a SLI Plus motherboard with a i7-5820k with no problem. However, the other day I screwed my motherboard up so I had to buy a new one. Slightly different but in the same "family" of boards; it's the MSI X99a SLI Krait Edition. No matter what voltage, CPU Ratio/multipler/ I use it won't post. The only thing I got to post was setting the Base Frequency to around 3.7Ghz without touching the multiplier and upping the voltage to around 1.2.

When I restore defaults, keep Base Frequency stock, but up the multiplier to 4GHz or actually anything other than stock it won't post. Don't know why this is happening. The Core voltage won't go past 1.25 (If I put in 1.3 it shows as red and goes back down). It is really frustrating. I have a amazing cooler; it's the Be Quiet Dark Rock Pro 3 and on my old system with the SLI Plus motherboard I was able to hit 4.2 GHz easily stable before I backed down to a conservative 4GHz...

With this Motherboard I am just not sure why nothing I change will post except the Base Frequency which only goes to around 3.7Ghz. Really hoping someone has some tips.

Some folks on Reddit were mentioning that the board could be defective, but I am just not sure anymore. Any ideas?

Here is a pic of the interface:

http://imgur.com/u9tSbMi

Thanks so much for any input! smile.gif
post #2 of 10
Not familiar with the i7-5820k. Is 171.08MHz a normal base clock value for that chip? I'd set that to [auto] and if you plan to keep the turbo modes [enabled], I'd leave it on [auto].
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post #3 of 10
Thread Starter 
No. 100 is the normal base clock.
post #4 of 10
Well I what was your last board you ruined? Am I guessing from the sounds of it this new one is better? Different boards offer different power delivery for VRM, but I would say what you're seeing here may be an issue with that BIOS, are you using the latest BIOS. It not likely that all of a sudden your chip would stop working in the manner that it did before. They don't call it the silicon lottery for anything but rather I would suspect maybe you would need a bit higher voltage the same depending on the board. You didn't say what happened to the last motherboard, this may help us determine why your CPU might not be working right either!

For example, if you had a power surge or inputted too much voltage by accident on your last board this could paly a huge role into the degradation of the CPU if ti even works at all your lucky.
post #5 of 10
Thread Starter 
Quote:
Originally Posted by Jedson3614 View Post

Well I what was your last board you ruined? Am I guessing from the sounds of it this new one is better? Different boards offer different power delivery for VRM, but I would say what you're seeing here may be an issue with that BIOS, are you using the latest BIOS. It not likely that all of a sudden your chip would stop working in the manner that it did before. They don't call it the silicon lottery for anything but rather I would suspect maybe you would need a bit higher voltage the same depending on the board. You didn't say what happened to the last motherboard, this may help us determine why your CPU might not be working right either!

For example, if you had a power surge or inputted too much voltage by accident on your last board this could paly a huge role into the degradation of the CPU if ti even works at all your lucky.

Well, the last motherboard got ruined under completely different circumstances. My GPU was stuck in the case, and I pulled on the GPU too hard and pulled the entire PCI Express slot off the board. Needless to say I cursed quite a bit when that happened. lol

I agree that I will definitely have to play with the voltages more. I really wish there was something in the BIOS that mentioned why the POST failed. The O/C page of the new motherboard is exactly the same (they're both MSI X99A's) and I was doing things the same way as last time. Perhaps you are right that the voltage is off. Just hard to know by how much if at all.
post #6 of 10
Do you have the latest BIOS?

With the latest BIOSs in the MSI boards I have, voltage values that are outside general Intel specifications turn red when you type then in, but can still be entered and saved by pressing the Enter key. Is that not the case with your Krait?

Can you post photos of one BIOS main page of a setup that runs and one of a BIOS main page setup that doesn't?
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post #7 of 10
Oh man interesting I have a z270 extreme 4 matx board from Asrock and I always wondered why for SA and other frequencies those would turn red at like 1.2 or other values some users deem acceptable. Even though red it is still safe, and I mean safe in that its outside spec but won't fry your boards.
post #8 of 10
Thread Starter 
Quote:
Originally Posted by Beagle Box View Post

Do you have the latest BIOS?

With the latest BIOSs in the MSI boards I have, voltage values that are outside general Intel specifications turn red when you type then in, but can still be entered and saved by pressing the Enter key. Is that not the case with your Krait?

Can you post photos of one BIOS main page of a setup that runs and one of a BIOS main page setup that doesn't?

I do have the latest BIOS, and when I put in a figure like 1.3 and it turns red and I press enter it automatically puts it back to 1.25 I think. I can't post a BIOS page of a setup that doesn't work because it resets all the values to default when it fails to post. I can just manually change the values and never reboot if that's what you mean of the last config I used that didn't work. I posted a picture in my first post of the main page when I overclocked the base clock, but I couldn't get the whole thing in-frame and taking a screenshot from the BIOS itself fails. I will post some more pictures tonight when I get home.
post #9 of 10
Quote:
Originally Posted by zamardii12 View Post

I do have the latest BIOS, and when I put in a figure like 1.3 and it turns red and I press enter it automatically puts it back to 1.25 I think. I can't post a BIOS page of a setup that doesn't work because it resets all the values to default when it fails to post. I can just manually change the values and never reboot if that's what you mean of the last config I used that didn't work. I posted a picture in my first post of the main page when I overclocked the base clock, but I couldn't get the whole thing in-frame and taking a screenshot from the BIOS itself fails. I will post some more pictures tonight when I get home.

Yes, I'd like to see the real values you've been trying to use. The photo with the base clock at 170 wasn't going to work - wasn't even remotely realistic, as I've never heard of anyone using a BCLK over 125 for your chip and that's only because some BIOSs will bump base clock up when XMP is enabled. Generally speaking, the more the BCLK is over 100, the less stable your system. And, unless you're trying for 4.5GHz, you shouldn't need 1.3V.
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post #10 of 10
Quote:
Originally Posted by Jedson3614 View Post

Oh man interesting I have a z270 extreme 4 matx board from Asrock and I always wondered why for SA and other frequencies those would turn red at like 1.2 or other values some users deem acceptable. Even though red it is still safe, and I mean safe in that its outside spec but won't fry your boards.

Another interesting thing to note: Some red settings will get you an instant fail in XTU, even if you've run safely at those settings for years. I only use Intel utilities to get ideas of how high I might push a chip.

Asking Intel how to hot rod your computer is like asking the dealership to hot rod your ride. "First, you replace those aftermarket headers with OEM exhaust manifolds...." rolleyes.gif
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