Please List Basic C2D / Dual Core Overclocking Tips

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Harvik780

ToTheBeatOfUrHeart
My brother got a new rig.Its high end by our standards.I'll update here as soon as i get to overclock it.I hope my brother will agree to it as we got 2000 less in 3dmark 05 scores(13760 instead of 15000)on our 8800GTS 640 mb.Maybe it was because of the processor e6600 and D-Gold ram at stock speeds.The processor used for the bench which got 15000 was an e6800.
And i forgot to mention u need a good power supply to overclock ur rig to extreme
 
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Choto Cheeta

Choto Cheeta

Rebooting
Harvik780 said:
My brother got a new rig.Its high end by our standards.I'll update here as soon as i get to overclock it.I hope my brother will agree to it as we got 2000 less in 3dmark 05 scores(13760 instead of 15000)on our 8800GTS 640 mb.Maybe it was because of the processor e6600 and D-Gold ram at stock speeds.The processor used for the bench which got 15000 was an e6800. And i forgot to mention u need a good power supply to overclock ur rig to extreme
Click to expand...

Did u try overclocking ?? U have a high end system to try OC the procy... and i think u can afford the 3rd party coolers for sure, cooler like ThermalRight Ultra 120 eXtreme so such... :D
 
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Harvik780

ToTheBeatOfUrHeart
I have a question,but prior to asking that let me inform u with what I did.
My signature's my rig.I updated the bios of the official release 1103.And then unlinked the ram and cpu.Overclocked the ram to 766Mhz at stock timings and set memory voltage to 2.000V.I also set the FSB to 1226Mhz which set the processor to a frequency of 2.758Ghz.I set the vcore to 1.26V/1.27V.
Core temps using coretemp
idle-44C
load-50C
Now i have the following questions-
Can i lower the Vcore to some more extent?
If yes then what is the minimum??
Also i tested the system on Vista with the above settings using lost planet directX 10 with 1.4 patch.The system hanged after an hour.Does this mean that i have increased the ram frequency too much??I opened the cabinet and touched the ram and found it to be hotter than usual(a lot).Cpu temps wre normal.
One more question.Does the system hang when the ram overheats and restarts when the cpu overheats??
Please reply..
 
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Choto Cheeta

Choto Cheeta

Rebooting
Leave the RAMs alone :p

Stay at 667 MHz :p no need to play with the RAM untill u find a unstable system :p, which in fact I think up to 3.0 or 3.2 GHz no need to touch the RAMs...

If you dont have any Extra Cooling then really dont touch the Processor vcore... More vcore means More heat....

Try and Increase the FSB / BUS speed only on stock cooling... :D

and always keep an eye on temps :p use the software to load test and temp testing :p (software with link you may find in 1st post of mine)

:)
 
H

Harvik780

ToTheBeatOfUrHeart
Thanks choto but i gotta go now as it's almost 12.Will return at 2:00Am.

Will test for stability today.

Ok stress tested the system today at different overclocking settings.
Here are the details of the settings changed(config is the sig)-
(Used Bios revision 1103 for tweaking with extreme tweaker)
Fisrt the voltages-
Memory Volatge- 1.950V
Vcore- 1.25V
1.2v HT voltage- 1.35V
North Bridge Core voltage- 1.4V
CPU VTT voltage- 1.4V

FSB and memory config-
Memory clock mode- Unlinked
FSB(QDR)- 1334Mhz
Memory DDRII frequency- 667Mhz

Here are a few benchmark results-

3dMark06 score at default settings(vsync disabled,AA and AF disabled)-
*img249.imageshack.us/img249/5291/3dmark06au5.jpg

Fear at everything set to low(640*480 DX9)
*img208.imageshack.us/img208/2659/fearjx5.jpg

Vista performance index-
*img442.imageshack.us/img442/8421/vistarn1.jpg
 
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Harvik780

ToTheBeatOfUrHeart
entrana said:
hey saurav is overclocking a 2.6ghz core2 to 3ghz safe
Click to expand...
Well i would like to suggest that u see the first post made by choto in this thread.It'll help.Basically the temperature needs to be below 62C on load after overclocking.U need to set the core2duo core voltage(Vcore)to a lower one say 1.25V in my case so that u can overclock a lot.

Choto Cheeta said:
run orthos and please try to post in this bellow format please.



I mean by running CPU Z and orthos and Core Temp on same Screenshot :D
Click to expand...

Running now.Will post soon.
 
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Choto Cheeta

Choto Cheeta

Rebooting
Harvik780 said:
Basically the temperature needs to be below 62C on load after overclocking.U need to set the core2duo core voltage(Vcore)to a lower one say 1.25V in my case so that u can overclock a lot.
Click to expand...

well after a certain point, you will have to increase the vcore as when u find a unstable system

as I use one heavy duty cooler like ThermalRight so took is to 3.6 GHz where I saw minimum vcore it would need is 1.5v !!! and that took the Processor to 62c on heavy load (orthos)... which is pretty much the stop point for me... there are poeple who do try to take it to more by trying to stay under 75c on high load but really thats too risky... !!!! as dont do want to have a burnt 13k Processor in ur hand :lol:
 
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Choto Cheeta

Choto Cheeta

Rebooting
Run orthos for 30 mins or more then please post that result that too... :D the system is tsable as passed the pi test but would like to see the temps when orthos pushes the system hard to its limit... :D
 
H

Harvik780

ToTheBeatOfUrHeart
Choto Cheeta said:
Run orthos for 30 mins or more then please post that result that too... :D the system is tsable as passed the pi test but would like to see the temps when orthos pushes the system hard to its limit... :D
Click to expand...
I ran for an hour an the highest temperature recorded was 67C.
:D

I wasn't able to set the multi any higher than stock,can u comment choto.
 
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Choto Cheeta

Choto Cheeta

Rebooting
Harvik780 said:
I ran for an hour an the highest temperature recorded was 67C.
Click to expand...

Ho Ho Ho...

actaully Pi Test is for Stability and Orthos is for Load Test... 67c means its hot yaar... try no to cross 65c at any stage... :p 60 is ur limit... but 65c means its red singnal for u :p

Bring down the FSB to 1200... Set all Voltage to auto... !!! then run Pi test... wait for ur Water cooler which u posted u would buy and then OC after u set that up...

E6600 is saw at my place on stock 2.8 or 2.7 is limit... :p
 
H

Harvik780

ToTheBeatOfUrHeart
Choto Cheeta said:
Ho Ho Ho...

actaully Pi Test is for Stability and Orthos is for Load Test... 67c means its hot yaar... try no to cross 65c at any stage... :p 60 is ur limit... but 65c means its red singnal for u :p

Bring down the FSB to 1200... Set all Voltage to auto... !!! then run Pi test... wait for ur Water cooler which u posted u would buy and then OC after u set that up...

E6600 is saw at my place on stock 2.8 or 2.7 is limit... :p
Click to expand...
Ok,setting the FSB to 1244 to get a clock of 2.8Ghz.
There is a problem with the cooler thing,the nautilus500(electric bill is no problem but)tirupati, the official dealer for corsair products in India says that it does not deal with coolers from corsair.Now i am ready to settle for even a good HSF(heatsink+fan) cooler but asus coolers are also not available from rashi.Should i call prime abgb.Will they have good coolers in stock(even water coolers) and what's there official site(www.primeabgb.com is under construction) and does prime abgb have good distribution of branches or dealers over the country???Please answer.And is the multiplier on C2De6600 locked????
 
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Choto Cheeta

Choto Cheeta

Rebooting
Should i call prime abgb.
Click to expand...

eMail them... search in the Kolkata User thread john posted their address there !!!

They do ship to any part of India... so even you u are not localted in Mubai u can always ask for a home delivery of the product...

as Thermalright or the one john has isnt bad at all.. if you notice john took his E4300 @ all most 75% OC, where as with my E6600 i have 50 % OC... both are really good in performance...

so you can buy any of these coolers too, from Side winder from where I bought... its one really recomendable place from me... supurb pre-sales supports... they are never bored or late in replying any of ur pre-sales question...

:D

And is the multiplier on C2De6600 locked????
Click to expand...

the answer is yes and no both :p

I am not sure about P5N32-E SLi but here at my P5N-E SLi its between 6 to 50... so yes its locked at MAX 50 and MIN 6 :p where as its not locked in its default 6 and 9 multiple.. !!! :D

but u dont need to play with multiple..

as as I said in OC, its BUS(BUS=FSB/4) * multiple so its simple math... ultimate result is same even u increase the FSB/BUS or Multiple...

but old P4's used to be unstabe on higher FSB or BUS so there we used to set the multiple high...

These core processors are damn stable on extreme higher FSBs, asl with FSB settings u can archive smaller steps while u increase the speed, so play with the FSB :p I suggest no need to touch the Multiple... keep it at default 9 :D
 
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BULLZI

Ambassador of Buzz
hi guyz.i was away for a while.yesterday got some time to play with my system.
i got my new ram n cpu cooler.i hit 3.12 GHZ with my E6400,fsb:ram=1:1.
v core = 1.28 volt.
stress checked by orthos for abt 7 hrs. max. temp = 65 C.
can i push further?
ram operating at little over 800 MHZ.
am i in safe zone?plz reply:).
 
john_the_ultimate

john_the_ultimate

No pain....No gain
Which cooler did you buy?
65c at 1.28v is really high..........mine E4300 @ 3.4GHz (stable) with 1.5v was giving around 62c with orthos running for 5 hours. So your temps does seem high for such low voltage.
Its not just about pushing the overclock further but also do keep check on temps and most importantly, keep it below 65c.
BTW, good o'clock :)
 
B

BULLZI

Ambassador of Buzz
i ll surely keep the temps in mind.:)
thanx for ur reply.i shall check whether i can lower the temps or not.bt the actual fact is that even at 2.8 ghz,tat showed about same temperatures.
and also there is a lot of difference in temps(abt 5-8C) between hardware monitor and tat.dont know why.
i ll go for further oc(shud try to hit 3.6GHZ).

my ram is Corsair Dominator PC2-8500(2*1 GB)
the cooler is ZALMAN CNPS9700.

nd after all i want to do whatever experiments possible with my proccy coz within a couple of months,i ll hv a new one:).
 
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