Real 1,85 Volts on a Duron?

[el]

Hi Folks,
does anybody know how to get real 1,85 V on a Duron ? I set the Bios ( A7V133 )
to 1,85- no chance. Then i closed all the bridges of L7, still got only 1,8 V !
Is this because of the Problem, that the Duron is still 0,05V under the T-Bird?

[Wega!]

How do u know there was no change, I mean did u use the Asus probe to monitor ur volts?
I have the A7V (not the 133 version) and I haven't closed the L7 bridges and I have no troubles getting to 1.85V

[el]

Hi Walter,

PC Probe shows every Voltage higher than usual ( don´t know why ). The Fact is:
A Duron is always ,025 V lower than the Athlon. For example: When you switch your voltage to 1,85 Volts your Athlon gets 1,85, your Duron only 1,825. It´s within the Chip- Configuration. I´m looking for an alternative way. All the people which puts their Cpu in the Database and tell us their Duron has 1,85 V are defenitely wrong. They have set it on the MB, but the Duron only gets 1,825.

[Wega!]

I have just checket my comp. Every program I use I get 1.92V, I don't believe this, cuz it's way to high. I actually don't know for sure how many volt's my CPU is getting cuz I don't have a program that I trust. I have always believed in the BIOS, but u are starting to make me doubt....
What program do u use to check ur volt?

[el]

Hi Walter,

I use PCProbe from ASUS and all the others like MBM etc. You´re right with your 1,92 V.
I get this Message too when I use my Thunderbird 1100@1333. At 1,85 V PC Probe shows 1.92 V ( all the others too!) When I change the Voltage to 1,8 Probe shows 1,87 and so on. Only on my damn little Duron it shows ONLY 1,87 ( which means nothing else, that the Duron gets only REAL 1,8 V )
PS: I tested everything with 4 different Athlons and 1 Duron in the same System !

[Rob Cork]

The 1.92V is real, all the monitoring programs and bios on my A7V tell me when it is set to 1.85 it is actually 1.92V (closer to 1.94 on mine). Here's why - the psu does not supply a ~1.8V line to the comp, the nearest voltage to that is the VIO, at 3.3V. The voltage regulator on the A7V (and all mobos) takes the 3.3V and runs it through some resistors to take it down to 1.8V, or whatever it is set to in bios. However, on the A7V (and I presume the A7v133), VIO is set to 3.54V rather than 3.3V by default, hence the voltage sent to the cpu is slightly higher than it 'should' be, as it is derived from the VIO. So when you're seeing 1.92V, that is the true voltage going to the cpu, not the 1.85V you've set it to. This is a good thing, because it means without any volt mod you have a max voltage of 1.92V, whereas most boards max out at 1.85V :-)

So at 1.8V, your duron is getting 1.87V, ie 0.07V higher than it's set to, just as 1.92V is 0.07V higher than the 1.85 set in bios. Don't worry about it, it's perfectly normal.

[el]

Hi Rob,

perhaps you don´t understand my problem:
I WANT high voltage, but my Duron only except 1,80 ( 1,87 ) on my ASUS A7V133.
My T-Birds get 1,92 my Duron not.

[Lynx]

I have got the good old 1.85 volts on a Duron. Due to a glich in ethermy mobo or my psu I get 0.025 volts extra! Lucky me. Still no enogh to get my duron 600 to 1007mhz.

Duron 600 @ 900

[Wega!]

Rob Cork (Feb 26, 2001 11:46 a.m.):
The 1.92V is real, all the monitoring programs and bios on my A7V tell me when it is set to 1.85 it is actually 1.92V (closer to 1.94 on mine). Here's why - the psu does not supply a ~1.8V line to the comp, the nearest voltage to that is the VIO, at 3.3V. The voltage regulator on the A7V (and all mobos) takes the 3.3V and runs it through some resistors to take it down to 1.8V, or whatever it is set to in bios. However, on the A7V (and I presume the A7v133), VIO is set to 3.54V rather than 3.3V by default, hence the voltage sent to the cpu is slightly higher than it 'should' be, as it is derived from the VIO. So when you're seeing 1.92V, that is the true voltage going to the cpu, not the 1.85V you've set it to. This is a good thing, because it means without any volt mod you have a max voltage of 1.92V, whereas most boards max out at 1.85V :-)

So at 1.8V, your duron is getting 1.87V, ie 0.07V higher than it's set to, just as 1.92V is 0.07V higher than the 1.85 set in bios. Don't worry about it, it's perfectly normal.


Hi Rob
Are u saying that if I upper the VIO voltage, I will get a little more on the core?

[proze]

i have no problem getting the 1.94v on my duron with the voltage setting maxed out. that's on the a7v. maybe the a7v133 doesn't have this quirk?

[Wega!]

"With the voltage maxed out"
Is that ur VIO voltage? If it is, have u had problems running at full volt?

[Rob Cork]

Walter - if you're running VIO at 3.3V at the moment, switching to 3.54 (Asus' default) ought to give you a higher vcore. If you're already running 3.54V, the only other setting available is 3.69V, which I personally would consider too high. El - sorry, I can't think of anything to fix your problem. Maybe a different bios might make a difference, but it could just be as Proze said - maybe the voltage regulator is different and doesn't behave quite the same as with the A7V.

[proze]

Walter:-( (Feb 27, 2001 07:55 a.m.):
"With the voltage maxed out"
Is that ur VIO voltage? If it is, have u had problems running at full volt?

nope. vio is on the middle setting.. think it's 3.5-odd.. i meant my vcore setting was set to 1.85v, and i get 1.94v.

[Wega!]

Hi Rob and proze
Thanks for answering. I'm running at 3.56 V in the VIO. I have tried to run at 3.69V, to see if I could get the FSB higher that way. I turned it down again, cuz I also think it's a little high, but actually I had no problems running at 3.69V. I think I will try it again to see if I get a higher voltage at the core that way.
Thanks again.