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post your lowest undervoltage

post #1 of 17
11/8/05 at 11:42pm
Thread Starter 
I just want to see what you guys are getting. I am on my Z71V PM 750 @1.86 down to 1.180V. What about you guys?
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post #2 of 17
11/9/05 at 12:37am
P.M 740 at .700v for my Asus z70v.
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post #3 of 17
11/9/05 at 1:01am
1.068 volts on full 1.86 Ghz, 0.748 volts on 6x (minimum) multiplier
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post #4 of 17
11/9/05 at 3:53am
Thread Starter 
Quote:
Originally Posted by Djembe
1.068 volts on full 1.86 Ghz, 0.748 volts on 6x (minimum) multiplier
I get the same voltage as you on full and if I try to go down one more step BSOD,lol
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post #5 of 17
11/9/05 at 6:06am
Quote:
Originally Posted by spincricket
P.M 740 at .700v for my Asus z70v.
I also got all the way down to .700 at 6x
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post #6 of 17
11/9/05 at 7:04am
.700 at 6x, 1.084 on 15x (2 gig). Both 100 % stable (12 hours of StressPrime).
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post #7 of 17
11/9/05 at 6:51pm
1.8ghz@2.26ghz@1.20v(or around)

im at work so I dont know exactly
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post #8 of 17
11/10/05 at 4:33am
.700V/800MHz, 1.116V/2.13GHz
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post #9 of 17
11/10/05 at 8:42am
what do you get from under volting? longer battery time or less heat? any disadvantage besides when the system dosent run stable?
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post #10 of 17
11/10/05 at 2:16pm
Quote:
Originally Posted by festher
what do you get from under volting? longer battery time or less heat? any disadvantage besides when the system dosent run stable?
yes, yes, no. Undervolting extends battery life (by up to 30 minutes in my case) and lowers the CPU temperature. And as long as you keep the voltage high enough to power the processor, it doesn't have any negative side effects. Undervolting is a massive misnomer, in my opinion. Basically, Intel "overvolts" all their processors due to a slight descrepancy in the required power input for each individual one. However, this "buffer zone" that they create is unrealistically large, and "undervolting" simply gets rid of the excess buffer zone and prevents the computer from wasting energy. To give a different example, heaters & air conditioners have efficiency ratings. If your gas heater used $200 worth of natural gas to heat your home for a month and you found a way to make it run more efficiently so it only took $170 worth of natural gas per month, would you do it? That's how undervolting works. It doesn't make your processor any faster or slower, and has no performance application whatsoever, just as in my example your house will still get heated the same amount regardless. It just makes your processor more energy-efficient.
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post #11 of 17
11/10/05 at 2:26pm
7x .700V
2gig 1.068V
24 hrs prime stable.
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post #12 of 17
11/10/05 at 3:40pm
thx alot djempe, are you using chc (centrino hardware control) to lower temps? and maybe speedfan to control fans as well. like bird59 mention in this thread?
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post #13 of 17
11/10/05 at 4:04pm
MultipliersVoltageSpeed
60.700798
70.700931
80.7801064
90.8281197
100.8761330
110.9241463
120.9721596
131.0201729
141.0681862
151.1321995
161.1962128
171.2922261
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post #14 of 17
11/10/05 at 5:17pm
Quote:
Originally Posted by festher
thx alot djempe, are you using chc (centrino hardware control) to lower temps? and maybe speedfan to control fans as well. like bird59 mention in this thread?
yes, I am using CHC to undervolt (and thus lower temps), but I'm not using speedfan, as I don't have a need to do so. The only time my chipset/GPU fan is noticeable is when I'm playing games, and I expect it to spin up then! The CPU fan doesn't come on until the CPU temp is 55 or higher, and that doesn't happen too often in non-gaming situations, either.
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post #15 of 17
11/10/05 at 6:08pm
do you only set multiplier 6x and 16x or each of the multipliers individualy? im a little uncertain how i should configure them all unless i just use 700volt for 800mhz and 1.180 on 2.13 and then just radnomly devide the rest in between

other than that chc is really nice, i just need a little advicing. i tried using kingcows settings and let it run a test and when i got back the pc was at the login window
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post #16 of 17
11/11/05 at 12:38pm
I posted this same question in the undervolting tutorial thread in the notebook general forum. I was told that the processor rarely uses the mid range multipliers, so it doesn't really make a difference.

Since it seemed strange to feed the chip more voltage for the midrange multipliers than it is fed for the 15x speed(which is now lower because of the undervolting), I checked the box labeled 'switch only between min and max multiplier' (or something like that, in the NHC voltage tab), so now my chip runs at either 800Mhz or 2000Mhz.
It is nice to have less heat andlonger battery life.

Vespadaddy
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post #17 of 17
11/12/05 at 12:05am
Quote:
Originally Posted by festher
do you only set multiplier 6x and 16x or each of the multipliers individualy? im a little uncertain how i should configure them all unless i just use 700volt for 800mhz and 1.180 on 2.13 and then just radnomly devide the rest in between

other than that chc is really nice, i just need a little advicing. i tried using kingcows settings and let it run a test and when i got back the pc was at the login window
I set voltages for all the multipliers. My method was to observe how much power the CPU took at each multiplier standard, and then lower each voltage by the same amount.
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