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2600K Overclock - BIOS 1.1 vs 1.9

post #1 of 13
Thread Starter 
Hi guys, I am just writing this because I have a really bad overclocking CPU (for a Sandy), which takes 1.536 volts to stay stable at 5GHz. Obviously, that is way to many volts, and would fry the CPU, so I run at 4.5GHz at about 1.4VCore on this mobo (My UD4 used to be able to hit 4.5GHz on 1.36VCore, but this board has a really weird LLC setting where:

-High VDroop = I set the VCore at 1.4 per say, it will drop to 1.36 then under load will boost to ~1.44

-Low VDroop = I set the VCore at 1.4, it stays at 1.4 but when under load boosts to 1.44 - for example, I have my VCore set at 1.375 for 4.5GHz, but CPU-Z reports 1.424 under P95 Small FFT's

So basically, I have to run at a higher VCore than normal, because if I set it at 1.36, it would drop to around 1.33 when not under load which would cause the CPU to crash. I could get around this by using Low VDroop, but that would still boost it extremely high.

So aside from that rant, I am just hoping that there is some saving grace in 1.9 BIOS that fixes all this, as it says "Improved Overclock Performance" on MSI's site. But so far, all I see is the option to enable/disable spread spectrum. Should I disable it? I have it enabled.

Update: As of right now, 1.9 is worse than 1.1 for overclocking, it's not stable at the voltages it used to be.

Now to the question, is there something seriously wrong that I am doing here?I am thinking of going back to the UD4.
BIOS Settings:

Base: 100.1
Ratio: 45
EIST/Turbo: Enabled
DRAM: 1600 8-8-8-24 @ 1.65Volts (This doesn't seem to be steady either)
Spread Spect: Enabled
VDroop: High VDroop
VCore (as of now): 1.385
Current reported VCore in BIOS: 1.4
CPU I/O: 1.33, because 1.31 didn't work, not sure if this is the problem though.S
Sys Agent: Auto
CPU PLL: 1.82
Internal PLL OV: Enabled

Once again, this should be rock solid stable, but it isn't. Any suggestions?
Edited by snelan - 5/7/11 at 9:07am
    
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post #2 of 13
Disable spread spectrum, try raising your VRAM to 1.66v~. Also try your I/O voltage at 1.35.
    
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post #3 of 13
Thread Starter 
Ok, will do. Any ideas as to why this board decides that the CPU needs a bunch of extra volts though?

EDIT: Did that, set VCore to 1.375 (which is 1.424 under load) with Low VDroop and it seems to be doing better now, it passed 5 minutes of prime (and still going) which is an improvement over the 1 minute it passed last time.
Edited by snelan - 5/7/11 at 9:18am
    
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post #4 of 13
Quote:
According to the Intel CPU spec, DIMM voltage below 1.65v is recommended to protect the CPU
So don't go mad with the volts
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by ACHILEE5 View Post
So don't go mad with the volts
I lowered it back down to 1.652 because I think the reason for my stability is due to me setting CPU PLL Overvoltage - what does that do?
    
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post #6 of 13
If you look in the "[Official] The Sandy Stable Club - POST YOUR 24/7 RIG" you can see what settings others are using

Me, I'm giving my chip an easy life using auto overclock. But I'm only running 4.3GHz
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by ACHILEE5 View Post
If you look in the "[Official] The Sandy Stable Club - POST YOUR 24/7 RIG" you can see what settings others are using

Me, I'm giving my chip an easy life using auto overclock. But I'm only running 4.3GHz
Yea, I've seen that. After seeing people hit 5GHz with 1.35 VCore I think I can say my chip is a failure at overclocking if it needs 1.536VCore just for 5GHz.
    
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post #8 of 13
No such thing as failure, just better cooling for the voltage sir!
Also those people on 1.35v arent divulging the other voltage settings either.
Test and tune!!!!
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post #9 of 13
Thread Starter 
Ok then, I'm gonna set voltage at 1.45 and 5Ghz. I will then adjust other voltages until it boots.

EDIT: Also, even with the best WC out there, I still wouldn't run at anything above freezing.
Edited by snelan - 5/7/11 at 9:55am
    
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post #10 of 13
Thread Starter 
Grr, I hate this board - 1.48VCore in BIOS somehow amounts to 1.544 under load in P95, why can't it just give the voltage I set it at? Trying with High VDroop now.

EDIT: High VDroop = even worse.
    
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