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MSI K9N SLI - No PCI Freq lock? :O

post #1 of 12
Thread Starter 
Hello, i just overclocked my CPU to 2.5GHz and my OS got wiped out. According to my friends this happenes because the mobo dont have a pci lock, is there any way to prevent this from happening? I know my CPU can do higher but i dont want to ruin another os.

/Joki
Gamla Bettan
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post #2 of 12
Try using a different sata port (if that's what your using). That's what I had to do when I was overclocking.
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post #3 of 12
The PCIe ie; 100MHz bus lock also locks the PCI.
    
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post #4 of 12
Given that it's an SLI board (implying nForce chipset) the PCI frequency should be locked...BUT phantom could be right on the monies - sometimes SATA ports are not locked.

How many ports on the board, and which port number are/were you using? And what cpu multiplier?
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post #5 of 12
Thread Starter 
According to MSI there is no pci lock, but the pci-e is @ 100mhz..I am using 2 ata drives..
Gamla Bettan
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Gamla Bettan
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post #6 of 12
The standard 33/100 goes hand in hand... never heard of an NF chip set that didn't have a lock!
There may not be a "BIOS Option" but I do believe it's there physically.
    
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post #7 of 12
Thread Starter 
Hmm, okay... well check this out,

http://support.msi.com.tw/techSptlogin.php - write joakim201@hotmail.com


Quote:
Dear Joki,
Thank you for contacting the MSI technical support.

I am sorry that there is no way to get a PCI Frequency Lock on your Motherbord to prevent this and we don't recommend you Overclock too high for your system stability.

Best regards,
MSI Technical Support Team
Gamla Bettan
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Gamla Bettan
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post #8 of 12
That's a bummer!
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post #9 of 12
Quote:
Originally Posted by Joki View Post
According to MSI there is no pci lock, but the pci-e is @ 100mhz..I am using 2 ata drives..
Well, I guess there is a first time for everything (first time I've EVER heard of an nForce chipset not being locked) and I learned something new!

Download SysTool http://www.techpowerup.com/systool/

This will help you monitor the PCI frequency within range (usually no higher than 37 MHz). The common fix to bypassing the PCI frequency being unlocked is keeping the memory frequency close to "stock".

Example: 200 FSB stock ram setting = the ram should not go above ~218 MHz FSB...this keeps the PCI frequency within the 33-37 MHz range.


***EDIT

Is this the system in your sig you are referring to? That's an awful lot of items being run by a 350W psu.
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Raven
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post #10 of 12
Thread Starter 
Systool dont work... just get an error..

I was going to get a new PSU but since that one i have works good i did not se the reason..


About the ram, i have never overclocked my ram, its always below 400mhz.. :O

is there any other program that monitors the pci freq?
Gamla Bettan
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Gamla Bettan
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