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2500k/MSI P67 C43 help, please

post #1 of 4
Thread Starter 
Today I decided to 'get my feet wet' in regards to overclocking. My system is as follows:
2500k
MSI P67 C43
650W Corsair TX Series
MSI Twin Fozr III HD6950 2GB
8GB G.Skill Ripjaws Series, 1600/9-9-9-24
and my cooler is the Zalman CNPS10x Performa

Before I go into my problems - I got a stable overclock with the multiplier at 44, vcore at 1.305 and Vdroop set to High.

My 'problem': I've gone up to 4.6Ghz with the vcore at 1.33. The OC does pass 20 minutes of both the prime95 Blent test and Small FFTs test. It also passes 10 runs of the Intel Burn Test. However, I'll either freeze or I'll get a BSOD with the error code of 124 - which, according to other guides I've read, means either increase/decrease the vcore or adjust QPI/VTT frequencies.. my problem is that in my EUFI BIOS, I don't see an option to change the VTT.

I'm perfectly fine with running my OC @ 4.4, and in the BIOS my vcore will only go up to 1.35 anyway (no idea why. If I want more than a vcore of more than 1.35, I'd have to manually do it through windows.), but I just wanted to find out how high my OC can get.

So, thoughts? Help? Should I just keep increasing my vcore until I hit my motherboard's ceiling of 1.35 or until stable, then raise the multiplier?

Edit: I am currently 'stable' (passed prime95, as well as IBT) at 4.5Ghz with a vcore of 1.305, and the vdroop set to High. Earlier, I switched my vdroop to low in this same overclock, and I got instability errors running IBT.

Edit 2: This is what I have enabled -
Internal PLL Overvoltage
Execute Disable Bit
Intel Virtualization Tech

And this is what I have disabled -
Limit CPUID Maximum
Power Technology
C1E Support
OverSpeed Protection
Spread Spectrum
Edited by degausserr - 11/7/11 at 6:16pm
post #2 of 4
Welcome to OCN mate

Quote:
Originally Posted by degausserr View Post
My 'problem': I've gone up to 4.6Ghz with the vcore at 1.33. The OC does pass 20 minutes of both the prime95 Blent test and Small FFTs test. It also passes 10 runs of the Intel Burn Test. However, I'll either freeze or I'll get a BSOD with the error code of 124 - which, according to other guides I've read, means either increase/decrease the vcore or adjust QPI/VTT frequencies.. my problem is that in my EUFI BIOS, I don't see an option to change the VTT.
20 mins of prime does not constitute stable, you need a good 6+ hours of blend. Your OC isn't stable. You will need to increase your vcore.

Also VTT may be referred to as VCCIO in your UEFI. You don't usually have to increase that unless you are oveclocking your RAM or running 16GB of RAM (4x4GB dimms).

Quote:
Originally Posted by degausserr View Post
I'm perfectly fine with running my OC @ 4.4, and in the BIOS my vcore will only go up to 1.35 anyway (no idea why. If I want more than a vcore of more than 1.35, I'd have to manually do it through windows.), but I just wanted to find out how high my OC can get.
Try doing a BIOS update to fix the voltage cap.

If that doesn't fix it, then it means the board's VRM can only delivery a max of 1.35v safely, and MSI has set that limit to make sure they don't get sued .

Just had quick look at your board and I can tell you that it's not an "overclocking board". It does not have a strong VRM design (which is essential for overclocking), so it's looking very likely that the voltage cap is there for safety reasons.
post #3 of 4
Thread Starter 
First of all, thank you!

And yeah, I knew that OC wasn't stable, it was just an example I was using. Also, I've gone back through my BIOS half a dozen times in the past hour, and I do not see this VCCIO in my UEFI.

I'd do the BIOS update, but I'm stable at 4.4Ghz with 1.305 vcore and considering I'm pretty happy with what I currently have, I don't think I'll be going any higher any time soon. In any case, I was just shooting for a mild overclock to begin with, and I've achieved that.

However, the day I do decide to get serious, I've come to realize that I'm probably going to need to have to get a new board because, as you mentioned, this board isn't exactly made for overclocking.
post #4 of 4
4.4 is a nice OC with that board
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