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Overclocking intel core 2 quad Q8300 @ 2.5GHz on a dell XPS 630i

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May 19, 2011 9:34:32 PM

how do i go about oc my cpu in my bios. ive never oc a cpu before.

intel core 2 quad Q8300 @ 2.5GHz
4 gigs DDR2 kingston @ 400 MHz
nForce 650i SLI SPP motherboard
NVIDIA GeForce GTX 560 Ti 1gig
500 gig hdd
750watt power supply
phoenix bios
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May 23, 2011 11:06:42 PM

First question: does the Dell BIOS let you change things like the FSB freq and CPU voltage?
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May 24, 2011 7:47:10 AM

i can change the FBS its set at 1333.3 and i can change the voltage.
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May 24, 2011 10:39:55 AM

Hmm no you've got the wrong speeds there mate. You need to be able to set core frequency (the core multiplier will be set, probably at 9x). Once you get that, you can try setting it to 333MHz for a 3GHz (333MHz x 9 = 3GHz), which is more or less where you want to be to start off with. It should currently be at about 278MHz~280MHz. Anything more than 333MHz would need a stronger cooler, as then you're going to start getting a hot CPU. Decide what you want to do, and get back here... :) 
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May 24, 2011 3:23:09 PM

Toxxyc said:
Hmm no you've got the wrong speeds there mate. You need to be able to set core frequency (the core multiplier will be set, probably at 9x). Once you get that, you can try setting it to 333MHz for a 3GHz (333MHz x 9 = 3GHz), which is more or less where you want to be to start off with. It should currently be at about 278MHz~280MHz. Anything more than 333MHz would need a stronger cooler, as then you're going to start getting a hot CPU. Decide what you want to do, and get back here... :) 

Nope
7.5 x 333 = 2497.5

He needs to set the FSB to 400 to get 3.0, which would probably mean a voltage increase as well.

Same cooler was used on the full range of cpu's ( upto QX9650 ), doesn't need a stronger cooler, an exhaust fan would be a help.
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May 24, 2011 3:23:42 PM

matt133821 said:
how do i go about oc my cpu in my bios. ive never oc a cpu before.

intel core 2 quad Q8300 @ 2.5GHz
4 gigs DDR2 kingston @ 400 MHz
nForce 650i SLI SPP motherboard
NVIDIA GeForce GTX 560 Ti 1gig
500 gig hdd
750watt power supply
phoenix bios

http://www.my630i.com/resources/overclocking.html
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May 24, 2011 8:00:45 PM

delluser,

i went to the link you provided how do i know if i have a locked or unlocked processor? when it says to

Go to Advanced and then Overvoltage Configuration. Add incrementally to the FSB clock for the CPU. It may require a small increase to FSB VTT of not more than one or two available increasable values in the BIOS settings. when i go there the only things i see is

CpU default voltage 1.1875V (grayed out)
CPU core 1.2000V Auto
CPU FBS 1.10V Auto
memory voltage 1.85V Auto
chipset voltage 1.25V auto

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a b K Overclocking
May 25, 2011 11:24:03 AM

matt133821 said:
delluser,

i went to the link you provided how do i know if i have a locked or unlocked processor? when it says to

Go to Advanced and then Overvoltage Configuration. Add incrementally to the FSB clock for the CPU. It may require a small increase to FSB VTT of not more than one or two available increasable values in the BIOS settings. when i go there the only things i see is

CpU default voltage 1.1875V (grayed out)
CPU core 1.2000V Auto
CPU FBS 1.10V Auto
memory voltage 1.85V Auto
chipset voltage 1.25V auto

There would be an X in the processor name ( QX 9650 ) your's isn't.

Not familiar with that bios, if you followed the instructions and have no overclocking option you might want to head over to my630i.com and see if they can help you out
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