i have been on it all day, speedstep is not on it seems, there is no way the cpu to lower its frequency
if I set max frequency at 50% then yes the cpu goes down
but the trouble is that the CPU always stays at max specified no matter what % is specified for the lowest. I usually put 5% in there, but i tried 20% 40 %50%¨....
the cpu never goes down.
its now rock solid at 2.1ghz even so i specified the lowest at 5% in the power saving plan.
Download this version, as .NetRolller 3D said, this version is less "glitchy" and I can confirm this, I'm running on it right now, it has all the BIOS options unlocked.
Look around a little, maybe you'll find something interesting. Aspire 7720G 1.45
Just unpack and run InsydeFlash.exe to install from Windows, it should work with no problems. Of course, do this at your own risk
@ttomorad, @diegus: Simply installing MXM Edition won't properly enable EIST in itself (for Windows at least - Linux seems to do EIST correctly for me even with the stock Acer BIOS); you also need to set "IST Configuration" to Disabled in the Advanced CPU Configuration menu, then use ThrottleStop in Windows to enable EIST. (This is also the easiest way to enable Dual IDA on the 5720/7720.)
hello, and first of all, thank you for your fast responses
I downloded throttlestop to have a look,
EIST is greyed but ticked so it seems to be on.
But the CPU never goes down
Am I missing a point ?
i just noticed something that i think is worth mentionning.
when I set min CPU at 5% and max CPU also at 5% in the power saving plan (batterie icon next to the clock)
then the CPU seems to fluctuate (using CPU-Z to monitor)
going in 3 differents states
x5.5 :1097.9 mhz
x6 :1197.1 mhz
Maybe the problem does is not the bios after all ?
I need to mention that I reinstalled using a windows DVD as my recovery did not work.
Am I missing a point?
Last edited by diegus; 18th November 2011 at 08:04 AM.
hello everybody, and thank you for your help, it's good to know that we are not alone
Here is an update:
I did not yet flashed the bios, I prefered to invastigate further as I am a bit afraid of briking the pc...this will be the last resort.
I had a look in the windows log and I see a few errors:
Kernal-Proccessor-Power is the source. Event ID 2,
Performance power management features on processor 1 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware.
I get the same message for processor 0
I also get this message:
ACPI event 13
The embedded controller (EC) did not respond within the specified timeout period. This may indicate that there is an error in the EC hardware or firmware or that the BIOS is accessing the EC incorrectly. You should check with your computer manufacturer for an upgraded BIOS. In some situations this error may cause the computer to function incorrectly.