When should i start increasing voltage?

WeatherGeek

WeatherGeek

New Member
I am overclocking using a program called Dual Core Center that came with my motherboard. I have been upping the FSB speed slowly and incremently. I got to 2.6ghz from 2.4 on my E6600. All I changed in it was the FSB speed. When i tried to go to 290mHZ on the FSB the PC froze and i restarted, it went back to default. I am back up to a stable 2547mhz CPU speed and stopping here until I get info here. When should I begin to up the voltage of the CPU? The current Vcore is at about 1.27. Do I need to change any other settings in Dual Core Center to safely OC? Thanks a lot
Chris
 
EDIT: I just upped voltage by 0.0125 and am at 2610mhz FSB 290MHZ

How OFTEN should i up voltage?
 
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Your doing what i did like yesterday - before upping the voltage decrease the HT multiplier in BIOS from z5 to x4 and also decrease the ram from 400 to 333 or from 200 to 166

this gave me an extra 400 MHz overclock without messing around with voltages which can damage
 
The reason I'm using this software is because I cant find any multiplier info in BIOS, I cant find much there. If anyone can help me that'd be great, I'm using an MSI motherboard. Also, I dont think there is HT with my intel CPU.

What I HAVE done...
I think I may have hit a dead end, i cant get about 296mhz FSB. I upped the voltage by 0.0250mhz , tried to up it to 297mhz FSB and PC froze. I can get up to 2.664ghz CPU speed but thats it.
 
stephensmia said:
Increase the voltage when the computer wont post. Thats how you know when you need to go up.
Click to expand...

I'm OCing from within windows in that program I was talking about, and the computer freezes when I go to a certain level (at this point 297+mhz FSB with 1.30 VCore.)
 
OK I've found some stuff in BIOS by disabling Intel EIST. I see
System Clock MODE set it to manual
FSB Clock (Mhz) [1066]
Memory Clock (Mhz) [ 800]
Adjust CPU Ratio [ 9]

^How would I go about overclocking this?
 
Okay I've found what I need and increased the FSB speed to 1076mhz and have a CPU clock of 2420mhz , thats up about 10. I tried to up the FSB to 2000mhz but it failed. What should I do to increase it to 2000 or more? The multiplier is locked at 9 or less. Its currently at 9. Wouldnt lowering the memory bus speed make the RAM slower? Thanks
 
I made a stupid mistake above - if you read, i tried to up the FSB from 1096mhz to 2006MHZ. My brain told me that 1096+10=2006. DOH! lol
I upped the FSB by increments of 10 and thats ALL. RAM is still at 800MHz and multiplier is still 9. Voltage is still the same as well (+/-0 or 1.22v). CPU is up to 3.003GHz! Windows is booting properly and seems stable for now. Temps at MAX load at startup for both cores are between 38-45C and currently at 32-36C with 15-30% load. With the current conditions of the CPU, am I safe with this 3.003GHz? Should I raise the voltage a bit or is that unneeded? Thanks for any input
 
hmm

Okay... I tried to OC a bit more today, got to 3.2 and system wouldnt boot. Cut it down to 3.15 and it was stable for about 5 hours, then just now it went to a blank blue screen and I had to restart, dropped FSB by 10mhz, still had problems booting windows, then another 10 and finally got it to work.
CPU is currently at 3.104GHz with FSB at 345MHz. I continue with my question...
When should I start increasing the voltage?
What should I do to get more OC? Increase voltage. lower something else? What?
 
3.1Ghz @ stock voltage is amazing. But it's obviously stopping you from getting any higher.

As the rule of thumb is for any CPU, increase the voltage slightly, check temps, and raise the bus speed some more. But dont raise the voltage too much. I believe 1.5-1.55v is pretty much as high as you should go without risking too much.
 
[-0MEGA-];643967 said:
3.1Ghz @ stock voltage is amazing. But it's obviously stopping you from getting any higher.

As the rule of thumb is for any CPU, increase the voltage slightly, check temps, and raise the bus speed some more. But dont raise the voltage too much. I believe 1.5-1.55v is pretty much as high as you should go without risking too much.
Click to expand...

OK I'll try it. I did end up having problems. Computer would freeze about once in a 24 hour period, and I got a message in BIOS on the order of the BUS speed was not supported. I pressed the clear CMOS button on the mobo and set everything back to stock, I'll begin OCing a bit again later.
 
Grrr.... I'm running into the same message I got in BIOS with my first overclcok attempt... when I try to hit 1200MHz FSB in BIOS i get...
"A 267MHz system bus proessor is installed. This processor is not supported on this system board, and will run at a decreased processor clock speed. System Performance will be impacted."
On the BIOS entry screen. I got this previoiusly as well and pressed the CLEAR CMOS button on the MOBO and cleared it, now its back. Increasing voltage doesn't help, im at 1190FSB with a 2691MHz CPU clock, this seems as far as I can go :(

What can I do to go higher?
 
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WeatherGeek said:
Grrr.... I'm running into the same message I got in BIOS with my first overclcok attempt... when I try to hit 1200MHz FSB in BIOS i get...
"A 267MHz system bus proessor is installed. This processor is not supported on this system board, and will run at a decreased processor clock speed. System Performance will be impacted."
On the BIOS entry screen. I got this previoiusly as well and pressed the CLEAR CMOS button on the MOBO and cleared it, now its back. Increasing voltage doesn't help, im at 1190FSB with a 2691MHz CPU clock, this seems as far as I can go :(

What can I do to go higher?
Click to expand...

Bump
 
Have you been stress testing it? Just because you can boot at 3GHz doesn't mean that it's actually functional. Download Prime95 or some other program that will max out your CPU so you can tell if it is stable at those speeds.
 
PohTayToez said:
Have you been stress testing it? Just because you can boot at 3GHz doesn't mean that it's actually functional. Download Prime95 or some other program that will max out your CPU so you can tell if it is stable at those speeds.
Click to expand...

If you read my posts above, i stated that it became unstable and that im now at 2.6GHz
 
Okay, I get the error message about a 267MHz system bus processor being installed when the FSB is set to 300MHz or over. Is this just a motherboard error, or something that can't be ever fixed (permanent)?
 
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