C2D Overclocking Guide for Beginners

[Clunk]

Its possible that you are at the CPUs limit, and if that is the case, theres not much you can do about it.

On the P5B, there are unstable areas all the way up to 400FSB, so you could try a lower multi to avoid those areas.

You can also try more voltage if your cooling is up to it.

Just out of curiosity, what are you measuring those temps with?

For most people, 3.6-3.8ghz isnt doable for 24/7 use, regardless of the cooling.

[cletus_cassidy]

I was average the temperatures of CoreTemp and TAT (they're different by 2-3 degrees or so).

Is the 1.5v/3.5 ghz overclock doable for 24/7 use, or should I tone it down a bit?

[Supershanks]

i'm running e6600 on p5k & previously on commandoon water. On p5k i need 1.525v (but damoper is enabled probably 1.565v in real money which was about where i was on commando.

Load temps are around 52C. So i'd try upping vcore a bit & experimenting further if you want. On both boards i've been 24/7 stable at those vcores. As a rule of thumb 1.6v~1.65v is my cutoff point fior vcore, but everyone is different & you must make do as you feel comfortable.

luck

[Clunk]

^^exactly what he said, just go with what you feel ok with.

There is virtually no difference in performance in everyday stuff from 3.4Ghz to 3.6Ghz that you would notice, and the heat will probably be more noticable than the performance if you up it any more

[cletus_cassidy]

Thanks for the responses. I think I'm comfortable with 1.5v and the 3.5 ghz overclock. Are CoreTemp and TAT sufficiently accurate to quote Vcore temps, or should I be using/doing something else?

[Supershanks]

on my rig i've always found coretemp to be the most accurate(well it consistently gives the higher readings) so i go with that.

[cletus_cassidy]

Do you think a 3.5ghz OC on an E6600 at 1.4625v is sustainable? Since it's barely touching 50 at load I don't feel too worried about the temps, but is there a significant danger of that voltage degrading the board or CPU over time? Perhaps I should tone it down a bit?

[Clunk]

Sounds good to me.

There is always a danger of damage to the cpu with anything over the stock voltage, its just a risk of overclocking

[cletus_cassidy]

Thanks, Clunk. I guess I was worried about an unnecessarily large electro-migration risk using a ~ 1.5v setting 24/7.

[BULLZI]

hi all.i am a beginner to overclocking.the guide of Clunk's is an amazing one.really is helpful.
just a little query.is a cpu cooler essential for overclocking?
and is AI Booster safe to do decent overclock or should i prefer bios?

[Clunk]

Originally Posted by BULLZI

just a little query.is a cpu cooler essential for overclocking?
and is AI Booster safe to do decent overclock or should i prefer bios?

Yes, you need a CPU cooler, even if you are not overclocking. For overclocking, you need something better than the stock intel cooler, plenty of info on the forums about those.

Stick to overclocking with the bios.

[BULLZI]

thanx a lot Clunk.
Just one additionl query.is it worth of upgrading my ram to pc2-8500??what speed will i get because
my motherboard officially supports upto 800 mhz.

[Clunk]

Well, the speed that your RAM runs at, will depends on what speed the FSB is running at.

1:1 - PC2-8500 is good for up to around 500FSB (ish), which would be 4.5Ghz. Clearly you arent going to get that high, and in that case, you can use a divider to run the RAM faster than the FSB.

Edit: That would be 4.5Ghz on a cpu with a 9x multi, and 4.oGhz on an 8x multi.

[BULLZI]

Hi Clunk,I tried a bit overclocking yesterday night,not very much,only making 2.13ghz to 2.32 Ghz.
I am posting the results.


(1)
CPU Frequency - 275 Mhz
CPU temp. - 49-49.5 C
MB temp. - 38 C
V core Voltage - 1.296 V
3.3 V Voltage - 3.344 V
5 V Voltage - 4.966 V
12 V Voltage - 12.249 V

Processor speed - 2208 Mhz.


(2)
CPU frquency - 281 Mhz
CPU temp. - rised to 50 C then came back to 48-48.5 C
MB temp. - 38 C
V core Voltage - 1.312/1.32 V

As per AI Suite - CPU temp(45 C),MB temp.(38 C),FSB(1127)/(1691.45 Mhz).CPU voltage 1.312V.

Processor speed - 2.25 Ghz.

(3)

At processor speed 2.28 Ghz the readings are more or less same.

(4)

At last,I changed CPU frequency to 289 Mhz.
FSB - 1156 Mhz
CPU Temp. - rose to 52 C but then came to 49/49.5 C.
MB Temp. - 38 C
V core Voltage - 1.32 V

Processor speed - 2.32 Ghz


Now plz tell me whether these readings are normal or not.i guess i have to try to decrease the V core voltage.I want to do that tonight.I tested my system for 6 hours.

And one little query.AI Booster is showing CPU ratio = 8.Is it the CPU multiplier?If so,then why is
AI Suite showing 0289.03 * 06.0(=1734 Mhz)?when actual fsb is 1156 Mhz(from Bios)?

**All these overclocking is done by only changing the CPU frequency from AI Tuning**
**Bios version is 1004 (I have to have the latest Bios ?)**
**CPU mutiplier option maximum=8,minimum=6**

[Clunk]

Please read the guide from start to finish, we dont use AI tune at all, everything is done from the bios.

[BULLZI]

silly mistake,i did everything from bios.