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Some basic overclock questions

post #1 of 9
Thread Starter 
I want to know how high i have to raise the 133 bus to get a change in the processing speed? Like whats the bus to processing speed ratio?
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post #2 of 9
It depends on your processors multiplier, say you are running at 133 and your processors multiplier is 18 that gives you a clock speed of 2.4 (rounded up). You only need to move it "1" to actually change the speed.
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post #3 of 9
As already explained above:
Processor Internal Clock = Front Side Bus x Multiplier

An example is your CPU where the FSB is 133MHz and the multiplier is 19. That gives you a processor internal clock of 133 x 19 = 2527 MHz (rounded to 2.53 GHz)
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post #4 of 9
Thread Starter 
Oo i get it.. and if i want to overclock the processor what is a safe speed on stock cooling? and do all i have to do is up the bus speed or do i need to tweak something else
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post #5 of 9
Quote:
Originally Posted by Lilwheezy75
Oo i get it.. and if i want to overclock the processor what is a safe speed on stock cooling? and do all i have to do is up the bus speed or do i need to tweak something else
Speed is not a safety issue when overclocking (CPU load temp and CPU voltage, also system stability are what really matters).

I'm not sure if your CPU is a Northwood or a Prescott core.
Download cpu-z and run it. It'll tell you what core you have.

What you should monitor is the CPU temperature under load.
If you have a Northwood core then keep your temps below 55C. If you have a Prescott core keep the temps below 60C.

Also don't exceed a CPU voltage of 1.7V for Northwoods and 1.525V for Prescotts.

Of course you should also test your system for stability after each overclock attempt. You can do that by running programs such as Prime95, Folding@Home and MemTest86 (Google them for more info).

I can explain things further but I recommend that you read the following guide and come back with any additional questions you might have.

Good luck !
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post #6 of 9
Thread Starter 
i have a northwood core
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post #7 of 9
This thread should help you along a bit.
http://www.overclock.net/intel-cpus/...ing-guide.html
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post #8 of 9
First thing you need to get is speedfan so you can monitor your temps.

here:http://www.almico.com/speedfan.php
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post #9 of 9
Thread Starter 
So i attempted to OC my processor last night.. it seemed well and done... i d/l that speedfan, wasnt realy sure how to read it though... So i started to OC, i had it to 2.8 ish, and in BIO's it said that the highest temp was 42C, and the Voltage was 1.47... Seemed alright.. I restarted the comp and as windows loaded is said something in the registy was Lost (dont remember exactly) but was recovered succesfully. windows loaded with the "old school" looking toolbar... so i went to BIOs and loaded defaults and it was back to normal? I didnt have any problems when reachin 2.6..or 2.7

What could be happening?
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