How much is 1.49V?

[m25]

My board supplies a voltage around 1.49 to my 3000+ designed for 1.35-1.40.
it's relatively new (2 months), is it normal for a board to supply ~7% more vcore? I have no voltage control other than C'n'Q so I'm using CrystalCPUID, scheduled on startup to set the voltage around 1.36. Is there any other way to change it for a board that does not providevcore control?

 

[yakyb]

out of interest what is the model of your board?

 

[andrnils]

Sounds like the acpi DSDT table is corrupt, maybe a bios update will correct this.

What OS do you run? If you run Windows crystalCPUID or RMClock is the way to go. You could always edit the code of the AMD-processor driver to set correct voltages, but that is a bit more work...

Does your board supply ~7% to much vcore at all frequencies?

 

[m25]

yes, even @ the lower 5X multi it makes about 1.18 instead of ~1.10. I just updated the bios to the latest version 3 weeks ago but that didn't change anything.
Looks interesting that thing of editing the driver, can you help me with some indications / links?

 

[m25]

out of interest what is the model of your board?

Asus A8V-MX

 

[yakyb]

what are your other voltage rails running at (should be able to find out easily by using a multi meter or thru bios) it could be that your PSU is suppying an increased voltage accross all rails if its not this you could always claim a faulty board if its worrying you however my 3500 is currently running very stable at 1.47 so i wouldn't worry too much.

 

[m25]

I used another PSU and vcore remained the same. I am worried because it stresses the CPU more then it should and @ full load I get 2°C increase compared with vcore 1.36. I want my machine to run smoothly and 1.49 is high OC-ing voltage. :x

 

[RichPLS]

If you are only relying on the onboard reporting the voltage, it could be simply reading high, and before adjusting anything, if it really worries you, then you might want to check the voltage output from your PSU using an independent voltmeter first.
7% more voltage, imo, is better than being 7% too low... and is within operating spec regardless, albeit is on the high side, but if temps are good, then not much to worry about, again, imo.

 

[m25]

If you are only relying on the onboard reporting the voltage, it could be simply reading high, and before adjusting anything, if it really worries you, then you might want to check the voltage output from your PSU using an independent voltmeter first.

I have even replaced the PSU but it's the same. When in Crystal CPUID I set vcore to what should be 1.275V, CPUZ reports ~1.36; If it were 1.275, it would not remain stable OCed @ 2GHz.

7% more voltage, imo, is better than being 7% too low... and is within operating spec regardless, albeit is on the high side, but if temps are good, then not much to worry about, again, imo.

Nothing to worry about except that it runs 2°C hotter with that voltage. It could also be bacause the board supports ALL kinds of S939 without vcore control and some older cores work @ 1.50V and they have set an all-iclusive voltage. However, would have been better having written 2-3 lines+ of bios :roll:

 

[Pain]

The vcore voltage is supplied by a regulator on the MB itself. The psu isn't supplying that voltage. IMO, ignore it. I always see the vcore running high but I never worry about it because you are relying on cheap monitoring hw and aren't looking at it directly with a scope. MB's also often supply a higher voltage to help compensate for noise.

If it really bugs you, set the voltage down manually and see if it will still run stable. If it does, OK. Like I said though, I'd ignore it.

 

[m25]

OK! A 3000+ has a nominal voltage of 1.40, but how with price drops, a 3800+ X2 is $150, and a 4200+ $185 @ ewiz.com Those beasts have a vcore of 1.30V, wouldn't it hurt or even burn a dual core if the value is right??? :?

 

[Pain]

Nope. If the board will support the CPU officially, then it will change the vcore to the supported voltage....but of course may be higher than spec, yet still lower than 1.49 or whatever.

Again, I'd ignore it.

 

[m25]

'How much is 1.49V?'

Well, 1.49 V is 1.49 Volts.... to put it another way, a AA, AAA, C or D size battery is 1.50 volts, 0.01 volts more.

Another way to look at it is 1.49 V would be the energy acquired by a free electron accelerated through a potential difference of said magnitude, this would correspond to 2.384E-11 Ergs, or 2.384E-18 Joules, or 5.698E-19 calories.

Or, to more address your question --- it makes no difference, it's not going to kill your CPU....

Jack

:lol: :lol: :lol: Thanks for refreshing my memory!

 

[m25]

Nope. If the board will support the CPU officially, then it will change the vcore to the supported voltage....but of course may be higher than spec, yet still lower than 1.49 or whatever.

Again, I'd ignore it.

Right! Now I only have to make the money for it, just checked www.ewiz.com and yesterday's X2 3800+ stock was already finished. How will I sleep til I get one :roll: ...