when to alter chipset voltage

[gags]

When do I raise my chipset voltage?
Do i take the vcore reading from in the bios or cpu-z? both are different
whats the safe max vcore for opteron 170 on air.

temps are currently 50c load

Man i so want to get 2.6ghz but it seems i need a big jump in volts to get there
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[Tweakin]

If you mean when you should raise your chipset voltage to mean the SB, I wouldn't unless you are really looking for the highest bus available and have some decent water or thermal to cool it.

As for the Vcore, add 10-15% to the base vcore and you should be fine. Most find that the returns after 10% are very small considering the extra voltage and heat produced. I would put the upper limit with decent air @ 1.48 to 1.55. Hope this helps.

Forgot, as for your temps, download cpu-z or Everest and see what temp reading that is giving you. The DC opty's run hotter due to all the cache, but that sounds just a little high to me...but I wouldn't say it's out of sight. The upper thermal limit is 65 I think for that chip, so you do have some headroom.

 

[gags]

thanks

so you thing 1.55 v core is ok?

@ 2.4ghz it needs 1.475vcore

then

@ 2.5ghz it needs 1.525vcore

is this acceptable? I mean its a big jump in volts for 100mhz

where in cpu z does it give a temp reading? I cant see it.Im using speedfan for temps at the moment

 

[Unkno]

i'd say just keep it at 2.4ghz, too much voltage would reduce the lifespan of your card.

 

[nealh]

to be safe keep the vcore close to 1.5v..alot people run 1.52v...so 1.53 would be my upper limit

1.55v is between .2-.25 over Opteron vcore at default...mines is 1.35 default so I personally felt my max vcore was 1.52v

I have found the opteron seem to really hit a wall...they overclock well with small vcore bump then really need a big jump to get anything more

my opteron 165..@2.4at 1.35vcore in bios, 2.5@ 1.41, 2.61@1.46...passed this I was not prime stable up to 1.54v for 2.7 so no more juice for me...create alot more heat as well

not worth the cpu.....

 

[thecoolnessrune]

Sorry if im hijacking, but would that mean i could run my 1.525V P4 2.8C Northwoord at up to 1.67V safely? That seems like a lot of volts to me.