Title: Anyone tried undervolting? Post by: CoenP on April 28, 2015, 11:58:19 pm Hi,
My mobo allows for lowering the voltage of the CPU, memory and Chipset. I usually leave the setting at auto where I presume it will follow the selected clock/multiplier rates (lower rates: lower voltage). Now I do not really understand what is going on here. There is the power state control, the Operating system (XT Tweaks?) and BIOS all playing a role. In a moment of Zen I set all to the lowest voltage setting where the PC allows for a boot while maintaining the clocks/multiplier settings. This is not without a reason, but not for this thread. Good or not the voltage lowering did offer a very noticeable increase in clarity. Also, as expected power consumption dropped quite a bit. I just wondered: is it allowed? Do others have found a similar effect? Do I fix the voltage by selecting the BIOS setting and is the affect due to less supply variations? thanks, regards, Coen Title: Re: Anyone tried undervolting? Post by: PeterSt on May 01, 2015, 08:37:53 am Hi Coen,
Quote Do I fix the voltage by selecting the BIOS setting and is the affect due to less supply variations? Fix ? What do you mean by that ? And the whole sentence /question to me looks like "instead of a screw driver ?". Not clear (to me) what you're asking ! Quote is the affect due to less supply variations? How do you see this happening in the first place - "less variations" ? Peter Title: Re: Anyone tried undervolting? Post by: CoenP on June 24, 2015, 11:14:14 pm A lttle late reply but relevant for those why might be tempted to try.
Simply put I was trying to use the bios settings to lower and fix the voltages on the Mobo components (cpu, memory, chipset). This resulted in a lower average power consumption and a change in sound. Now the only consistent result I got was a computer that hangs on one of the future (windows 7) boots or freezes during normal operation. Resetting the voltage to auto fixes the boot/freeze problem. Not a very unnerving problem but this also makes it an unworkable tweak. I'm not diving into it any further. cheers, Coen Title: Re: Anyone tried undervolting? Post by: juanpmar on June 24, 2015, 11:59:36 pm Thanks Coen, thats a similar situation than the one Alain said happens with his mb which is similar to mine. So trying to lower the CPU frequency by means of undervoltage, in this case, could make the computer hangs. Or is there any other method to lower the CPU frequency other than undervolting?
Regards, Juan Title: Re: Anyone tried undervolting? Post by: phantomax on June 25, 2015, 09:06:04 am Hello Juan,
I use program a called GetSFB to reduce the front size bus. This, together with the change in the multiplier due to the XXHE tweaks allow me to go down in frequency to some extent where the PC hangs. The problem is that I need to do it after every reboot and moreover you need to identify your chipset to get it working. Regards, Maxi Title: Re: Anyone tried undervolting? Post by: phantomax on June 25, 2015, 10:14:05 am Just a rectification: The name of the software is Setfsb. :fool:
And also I have to clarify that after a little research the software seems to be a bit outdated (my PC is too) and, furthermore, not all chipsets are represented. Regards Maxi Title: Re: Anyone tried undervolting? Post by: juanpmar on June 25, 2015, 10:15:44 am Thanks Maxi, I'll take a look at what you say in a few days because now I'm trying to solve a problem with one of the speakers and I have all my system "patas arriba" *
Regards, Juan *upside down Title: Re: Anyone tried undervolting? Post by: phantomax on June 25, 2015, 10:21:05 am I have all my system "patas arriba" * *upside down ¡Dios mío!* :swoon: I hope it's nothing serious *OMG Maxi Title: Re: Anyone tried undervolting? Post by: juanpmar on June 25, 2015, 10:36:42 am I hope to get it :soundsgood: asp
Saludos, Juan Title: Re: Anyone tried undervolting? Post by: listening on June 25, 2015, 12:26:39 pm Hi Coen,
I tried the same after your post but lowered the voltages step by step. It was counterproductive to lower the RAM voltage which leads very quick to instability. I found the same changes to SQ as you did and the system is stable. Georg |